./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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-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 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:43:05,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:43:05,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:43:05,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:43:05,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:43:05,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:43:05,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:43:05,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:43:05,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:43:05,801 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:43:05,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:43:05,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:43:05,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:43:05,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:43:05,804 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:43:05,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:43:05,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:43:05,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:43:05,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:43:05,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:43:05,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:43:05,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:43:05,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:43:05,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:43:05,809 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:43:05,810 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:43:05,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:43:05,810 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:43:05,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:43:05,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:43:05,811 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:43:05,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:43:05,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:43:05,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:43:05,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:43:05,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:43:05,812 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:43:05,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:43:05,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:43:05,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:43:05,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:43:05,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:43:05,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b [2024-10-11 03:43:06,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:43:06,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:43:06,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:43:06,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:43:06,142 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:43:06,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-11 03:43:07,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:43:07,919 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:43:07,920 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-11 03:43:07,940 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c61816937/23b7e19dec324a5085e48d4aa98034fe/FLAG11aa6dfd0 [2024-10-11 03:43:07,955 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c61816937/23b7e19dec324a5085e48d4aa98034fe [2024-10-11 03:43:07,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:43:07,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:43:07,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:43:07,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:43:07,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:43:07,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:43:07" (1/1) ... [2024-10-11 03:43:07,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db050b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:07, skipping insertion in model container [2024-10-11 03:43:07,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:43:07" (1/1) ... [2024-10-11 03:43:08,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:43:08,320 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-10-11 03:43:08,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:43:08,434 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:43:08,512 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-10-11 03:43:08,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:43:08,603 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:43:08,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08 WrapperNode [2024-10-11 03:43:08,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:43:08,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:43:08,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:43:08,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:43:08,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,691 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 853 [2024-10-11 03:43:08,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:43:08,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:43:08,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:43:08,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:43:08,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,717 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,752 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 03:43:08,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:43:08,788 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:43:08,788 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:43:08,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:43:08,789 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (1/1) ... [2024-10-11 03:43:08,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:43:08,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:43:08,830 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 03:43:08,833 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 03:43:08,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:43:08,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:43:08,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:43:08,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:43:09,053 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:43:09,055 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:43:09,844 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-10-11 03:43:09,845 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:43:09,909 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:43:09,910 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 03:43:09,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:43:09 BoogieIcfgContainer [2024-10-11 03:43:09,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:43:09,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:43:09,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:43:09,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:43:09,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:43:07" (1/3) ... [2024-10-11 03:43:09,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129e3db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:43:09, skipping insertion in model container [2024-10-11 03:43:09,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:43:08" (2/3) ... [2024-10-11 03:43:09,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129e3db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:43:09, skipping insertion in model container [2024-10-11 03:43:09,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:43:09" (3/3) ... [2024-10-11 03:43:09,924 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-11 03:43:09,942 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:43:09,943 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:43:10,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:43:10,049 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;@38680853, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:43:10,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:43:10,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 203 states have (on average 1.729064039408867) internal successors, (351), 204 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 03:43:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-11 03:43:10,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:10,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:10,085 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:10,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:10,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1634056533, now seen corresponding path program 1 times [2024-10-11 03:43:10,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:10,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79059398] [2024-10-11 03:43:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:10,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:10,806 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 03:43:10,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:10,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79059398] [2024-10-11 03:43:10,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79059398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:10,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:10,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:43:10,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574633337] [2024-10-11 03:43:10,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:10,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:43:10,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:10,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:43:10,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:10,850 INFO L87 Difference]: Start difference. First operand has 205 states, 203 states have (on average 1.729064039408867) internal successors, (351), 204 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:11,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:11,207 INFO L93 Difference]: Finished difference Result 821 states and 1333 transitions. [2024-10-11 03:43:11,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:43:11,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-11 03:43:11,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:11,270 INFO L225 Difference]: With dead ends: 821 [2024-10-11 03:43:11,270 INFO L226 Difference]: Without dead ends: 713 [2024-10-11 03:43:11,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:43:11,284 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 2302 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2302 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:11,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2302 Valid, 2393 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:43:11,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-10-11 03:43:11,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 314. [2024-10-11 03:43:11,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.4984025559105432) internal successors, (469), 313 states have internal predecessors, (469), 0 states have call successors, (0), 0 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 03:43:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 469 transitions. [2024-10-11 03:43:11,386 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 469 transitions. Word has length 79 [2024-10-11 03:43:11,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:11,388 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 469 transitions. [2024-10-11 03:43:11,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:11,388 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 469 transitions. [2024-10-11 03:43:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-11 03:43:11,392 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:11,392 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:11,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:43:11,393 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:11,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:11,394 INFO L85 PathProgramCache]: Analyzing trace with hash 622436384, now seen corresponding path program 1 times [2024-10-11 03:43:11,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:11,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096700066] [2024-10-11 03:43:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:11,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:11,782 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 03:43:11,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:11,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096700066] [2024-10-11 03:43:11,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096700066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:11,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:11,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:43:11,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784068823] [2024-10-11 03:43:11,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:11,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:43:11,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:11,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:43:11,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:11,788 INFO L87 Difference]: Start difference. First operand 314 states and 469 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:12,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:12,085 INFO L93 Difference]: Finished difference Result 1370 states and 2112 transitions. [2024-10-11 03:43:12,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:43:12,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-11 03:43:12,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:12,092 INFO L225 Difference]: With dead ends: 1370 [2024-10-11 03:43:12,092 INFO L226 Difference]: Without dead ends: 1132 [2024-10-11 03:43:12,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:12,099 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 1207 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:12,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 1828 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:43:12,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-10-11 03:43:12,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1124. [2024-10-11 03:43:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1123 states have (on average 1.5369545859305431) internal successors, (1726), 1123 states have internal predecessors, (1726), 0 states have call successors, (0), 0 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 03:43:12,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1726 transitions. [2024-10-11 03:43:12,157 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1726 transitions. Word has length 80 [2024-10-11 03:43:12,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:12,159 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1726 transitions. [2024-10-11 03:43:12,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:12,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1726 transitions. [2024-10-11 03:43:12,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 03:43:12,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:12,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:12,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:43:12,168 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:12,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:12,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2000650849, now seen corresponding path program 1 times [2024-10-11 03:43:12,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:12,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960959835] [2024-10-11 03:43:12,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:12,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:12,377 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 03:43:12,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:12,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960959835] [2024-10-11 03:43:12,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960959835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:12,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:12,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:43:12,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711539707] [2024-10-11 03:43:12,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:12,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:43:12,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:12,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:43:12,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:43:12,380 INFO L87 Difference]: Start difference. First operand 1124 states and 1726 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:12,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:12,673 INFO L93 Difference]: Finished difference Result 3048 states and 4736 transitions. [2024-10-11 03:43:12,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:43:12,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-11 03:43:12,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:12,683 INFO L225 Difference]: With dead ends: 3048 [2024-10-11 03:43:12,683 INFO L226 Difference]: Without dead ends: 1978 [2024-10-11 03:43:12,689 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 03:43:12,691 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1144 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:12,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 279 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:43:12,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-10-11 03:43:12,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1976. [2024-10-11 03:43:12,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 1.5458227848101267) internal successors, (3053), 1975 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:12,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 3053 transitions. [2024-10-11 03:43:12,746 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 3053 transitions. Word has length 81 [2024-10-11 03:43:12,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:12,746 INFO L471 AbstractCegarLoop]: Abstraction has 1976 states and 3053 transitions. [2024-10-11 03:43:12,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:12,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 3053 transitions. [2024-10-11 03:43:12,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 03:43:12,755 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:12,755 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:12,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:43:12,756 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:12,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:12,757 INFO L85 PathProgramCache]: Analyzing trace with hash -989088912, now seen corresponding path program 1 times [2024-10-11 03:43:12,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:12,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103878374] [2024-10-11 03:43:12,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:12,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:12,977 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 03:43:12,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:12,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103878374] [2024-10-11 03:43:12,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103878374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:12,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:12,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:43:12,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298686901] [2024-10-11 03:43:12,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:12,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:43:12,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:43:12,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:43:12,985 INFO L87 Difference]: Start difference. First operand 1976 states and 3053 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:13,240 INFO L93 Difference]: Finished difference Result 5483 states and 8532 transitions. [2024-10-11 03:43:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:43:13,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-11 03:43:13,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:13,255 INFO L225 Difference]: With dead ends: 5483 [2024-10-11 03:43:13,256 INFO L226 Difference]: Without dead ends: 3584 [2024-10-11 03:43:13,260 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 03:43:13,261 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1102 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:13,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 283 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:43:13,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2024-10-11 03:43:13,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3582. [2024-10-11 03:43:13,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 3581 states have (on average 1.5467746439542027) internal successors, (5539), 3581 states have internal predecessors, (5539), 0 states have call successors, (0), 0 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 03:43:13,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 5539 transitions. [2024-10-11 03:43:13,352 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 5539 transitions. Word has length 81 [2024-10-11 03:43:13,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:13,352 INFO L471 AbstractCegarLoop]: Abstraction has 3582 states and 5539 transitions. [2024-10-11 03:43:13,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:13,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 5539 transitions. [2024-10-11 03:43:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 03:43:13,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:13,356 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:13,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:43:13,357 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:13,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:13,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1940012974, now seen corresponding path program 1 times [2024-10-11 03:43:13,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:13,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141020078] [2024-10-11 03:43:13,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:13,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:13,530 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 03:43:13,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:13,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141020078] [2024-10-11 03:43:13,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141020078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:13,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:13,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:43:13,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215937526] [2024-10-11 03:43:13,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:13,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:43:13,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:13,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:43:13,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:43:13,534 INFO L87 Difference]: Start difference. First operand 3582 states and 5539 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:13,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:13,824 INFO L93 Difference]: Finished difference Result 10065 states and 15648 transitions. [2024-10-11 03:43:13,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:43:13,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-11 03:43:13,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:13,853 INFO L225 Difference]: With dead ends: 10065 [2024-10-11 03:43:13,853 INFO L226 Difference]: Without dead ends: 6624 [2024-10-11 03:43:13,863 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 03:43:13,864 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1056 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:13,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 294 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:43:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6624 states. [2024-10-11 03:43:13,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6624 to 6622. [2024-10-11 03:43:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6622 states, 6621 states have (on average 1.5468962392387857) internal successors, (10242), 6621 states have internal predecessors, (10242), 0 states have call successors, (0), 0 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 03:43:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6622 states to 6622 states and 10242 transitions. [2024-10-11 03:43:14,038 INFO L78 Accepts]: Start accepts. Automaton has 6622 states and 10242 transitions. Word has length 81 [2024-10-11 03:43:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:14,040 INFO L471 AbstractCegarLoop]: Abstraction has 6622 states and 10242 transitions. [2024-10-11 03:43:14,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 6622 states and 10242 transitions. [2024-10-11 03:43:14,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 03:43:14,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:14,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:14,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:43:14,044 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:14,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:14,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1681104641, now seen corresponding path program 1 times [2024-10-11 03:43:14,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:14,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598791691] [2024-10-11 03:43:14,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:14,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:14,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:43:14,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:14,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598791691] [2024-10-11 03:43:14,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598791691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:14,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:14,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:43:14,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307280157] [2024-10-11 03:43:14,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:14,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:43:14,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:14,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:43:14,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:43:14,197 INFO L87 Difference]: Start difference. First operand 6622 states and 10242 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:14,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:14,525 INFO L93 Difference]: Finished difference Result 19243 states and 29833 transitions. [2024-10-11 03:43:14,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:43:14,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-11 03:43:14,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:14,579 INFO L225 Difference]: With dead ends: 19243 [2024-10-11 03:43:14,580 INFO L226 Difference]: Without dead ends: 12728 [2024-10-11 03:43:14,593 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 03:43:14,595 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1058 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:14,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 285 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:43:14,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12728 states. [2024-10-11 03:43:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12728 to 12726. [2024-10-11 03:43:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12726 states, 12725 states have (on average 1.541925343811395) internal successors, (19621), 12725 states have internal predecessors, (19621), 0 states have call successors, (0), 0 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 03:43:15,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12726 states to 12726 states and 19621 transitions. [2024-10-11 03:43:15,085 INFO L78 Accepts]: Start accepts. Automaton has 12726 states and 19621 transitions. Word has length 81 [2024-10-11 03:43:15,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:15,085 INFO L471 AbstractCegarLoop]: Abstraction has 12726 states and 19621 transitions. [2024-10-11 03:43:15,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:15,086 INFO L276 IsEmpty]: Start isEmpty. Operand 12726 states and 19621 transitions. [2024-10-11 03:43:15,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 03:43:15,089 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:15,089 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:15,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:43:15,090 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:15,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:15,090 INFO L85 PathProgramCache]: Analyzing trace with hash -220051672, now seen corresponding path program 1 times [2024-10-11 03:43:15,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:15,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7126940] [2024-10-11 03:43:15,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:15,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:15,226 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 03:43:15,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:15,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7126940] [2024-10-11 03:43:15,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7126940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:15,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:15,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:43:15,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127129405] [2024-10-11 03:43:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:15,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:43:15,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:43:15,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:43:15,230 INFO L87 Difference]: Start difference. First operand 12726 states and 19621 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:15,639 INFO L93 Difference]: Finished difference Result 35616 states and 54997 transitions. [2024-10-11 03:43:15,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:43:15,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-11 03:43:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:15,695 INFO L225 Difference]: With dead ends: 35616 [2024-10-11 03:43:15,695 INFO L226 Difference]: Without dead ends: 22953 [2024-10-11 03:43:15,722 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 03:43:15,723 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 1155 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:15,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 284 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:43:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22953 states. [2024-10-11 03:43:16,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22953 to 22951. [2024-10-11 03:43:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22951 states, 22950 states have (on average 1.5374727668845316) internal successors, (35285), 22950 states have internal predecessors, (35285), 0 states have call successors, (0), 0 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 03:43:16,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22951 states to 22951 states and 35285 transitions. [2024-10-11 03:43:16,238 INFO L78 Accepts]: Start accepts. Automaton has 22951 states and 35285 transitions. Word has length 82 [2024-10-11 03:43:16,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:16,239 INFO L471 AbstractCegarLoop]: Abstraction has 22951 states and 35285 transitions. [2024-10-11 03:43:16,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:16,239 INFO L276 IsEmpty]: Start isEmpty. Operand 22951 states and 35285 transitions. [2024-10-11 03:43:16,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 03:43:16,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:16,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:16,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:43:16,246 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:16,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:16,247 INFO L85 PathProgramCache]: Analyzing trace with hash 361903276, now seen corresponding path program 1 times [2024-10-11 03:43:16,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:16,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585692644] [2024-10-11 03:43:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:16,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:16,702 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 03:43:16,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:16,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585692644] [2024-10-11 03:43:16,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585692644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:16,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:16,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:43:16,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203108054] [2024-10-11 03:43:16,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:16,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:43:16,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:16,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:43:16,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:43:16,704 INFO L87 Difference]: Start difference. First operand 22951 states and 35285 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:16,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:16,894 INFO L93 Difference]: Finished difference Result 23529 states and 36150 transitions. [2024-10-11 03:43:16,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:43:16,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-11 03:43:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:16,934 INFO L225 Difference]: With dead ends: 23529 [2024-10-11 03:43:16,934 INFO L226 Difference]: Without dead ends: 23527 [2024-10-11 03:43:16,941 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 03:43:16,942 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:16,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1105 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:43:16,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23527 states. [2024-10-11 03:43:17,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23527 to 23527. [2024-10-11 03:43:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23527 states, 23526 states have (on average 1.524313525461192) internal successors, (35861), 23526 states have internal predecessors, (35861), 0 states have call successors, (0), 0 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 03:43:17,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23527 states to 23527 states and 35861 transitions. [2024-10-11 03:43:17,361 INFO L78 Accepts]: Start accepts. Automaton has 23527 states and 35861 transitions. Word has length 82 [2024-10-11 03:43:17,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:17,362 INFO L471 AbstractCegarLoop]: Abstraction has 23527 states and 35861 transitions. [2024-10-11 03:43:17,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:17,363 INFO L276 IsEmpty]: Start isEmpty. Operand 23527 states and 35861 transitions. [2024-10-11 03:43:17,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 03:43:17,370 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:17,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:17,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:43:17,371 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:17,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:17,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1405559403, now seen corresponding path program 1 times [2024-10-11 03:43:17,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:17,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251744235] [2024-10-11 03:43:17,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:17,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:17,616 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 03:43:17,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:17,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251744235] [2024-10-11 03:43:17,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251744235] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:17,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:17,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:43:17,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329148854] [2024-10-11 03:43:17,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:17,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:43:17,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:17,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:43:17,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:43:17,619 INFO L87 Difference]: Start difference. First operand 23527 states and 35861 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:18,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:18,063 INFO L93 Difference]: Finished difference Result 65931 states and 100223 transitions. [2024-10-11 03:43:18,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:43:18,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-11 03:43:18,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:18,177 INFO L225 Difference]: With dead ends: 65931 [2024-10-11 03:43:18,177 INFO L226 Difference]: Without dead ends: 43209 [2024-10-11 03:43:18,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:43:18,228 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 192 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:18,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 609 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:43:18,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43209 states. [2024-10-11 03:43:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43209 to 43207. [2024-10-11 03:43:18,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43207 states, 43206 states have (on average 1.5104615099754664) internal successors, (65261), 43206 states have internal predecessors, (65261), 0 states have call successors, (0), 0 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 03:43:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43207 states to 43207 states and 65261 transitions. [2024-10-11 03:43:19,195 INFO L78 Accepts]: Start accepts. Automaton has 43207 states and 65261 transitions. Word has length 83 [2024-10-11 03:43:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:19,196 INFO L471 AbstractCegarLoop]: Abstraction has 43207 states and 65261 transitions. [2024-10-11 03:43:19,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:19,196 INFO L276 IsEmpty]: Start isEmpty. Operand 43207 states and 65261 transitions. [2024-10-11 03:43:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:43:19,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:19,213 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:19,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:43:19,217 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:19,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:19,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2050104330, now seen corresponding path program 1 times [2024-10-11 03:43:19,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:19,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350577356] [2024-10-11 03:43:19,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:19,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:19,326 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 03:43:19,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:19,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350577356] [2024-10-11 03:43:19,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350577356] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:19,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:19,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:43:19,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772370215] [2024-10-11 03:43:19,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:19,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:43:19,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:19,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:43:19,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:43:19,329 INFO L87 Difference]: Start difference. First operand 43207 states and 65261 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:19,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:19,743 INFO L93 Difference]: Finished difference Result 99074 states and 149694 transitions. [2024-10-11 03:43:19,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:43:19,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-11 03:43:19,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:19,880 INFO L225 Difference]: With dead ends: 99074 [2024-10-11 03:43:19,880 INFO L226 Difference]: Without dead ends: 60624 [2024-10-11 03:43:20,033 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 03:43:20,035 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 200 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:20,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 550 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:43:20,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60624 states. [2024-10-11 03:43:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60624 to 43037. [2024-10-11 03:43:20,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43037 states, 43036 states have (on average 1.4981643275397343) internal successors, (64475), 43036 states have internal predecessors, (64475), 0 states have call successors, (0), 0 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 03:43:20,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43037 states to 43037 states and 64475 transitions. [2024-10-11 03:43:20,998 INFO L78 Accepts]: Start accepts. Automaton has 43037 states and 64475 transitions. Word has length 84 [2024-10-11 03:43:20,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:20,999 INFO L471 AbstractCegarLoop]: Abstraction has 43037 states and 64475 transitions. [2024-10-11 03:43:20,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:20,999 INFO L276 IsEmpty]: Start isEmpty. Operand 43037 states and 64475 transitions. [2024-10-11 03:43:21,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:43:21,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:21,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:21,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:43:21,010 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:21,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:21,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1639566614, now seen corresponding path program 1 times [2024-10-11 03:43:21,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:21,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855886121] [2024-10-11 03:43:21,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:21,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:21,105 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 03:43:21,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:21,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855886121] [2024-10-11 03:43:21,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855886121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:21,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:21,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:43:21,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911587594] [2024-10-11 03:43:21,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:21,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:43:21,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:21,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:43:21,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:43:21,108 INFO L87 Difference]: Start difference. First operand 43037 states and 64475 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:21,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:21,419 INFO L93 Difference]: Finished difference Result 84822 states and 126978 transitions. [2024-10-11 03:43:21,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:43:21,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-11 03:43:21,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:21,765 INFO L225 Difference]: With dead ends: 84822 [2024-10-11 03:43:21,765 INFO L226 Difference]: Without dead ends: 55042 [2024-10-11 03:43:21,825 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 03:43:21,830 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 183 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:21,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 535 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:43:21,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55042 states. [2024-10-11 03:43:22,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55042 to 54557. [2024-10-11 03:43:22,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54557 states, 54556 states have (on average 1.4773810396656646) internal successors, (80600), 54556 states have internal predecessors, (80600), 0 states have call successors, (0), 0 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 03:43:22,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54557 states to 54557 states and 80600 transitions. [2024-10-11 03:43:22,821 INFO L78 Accepts]: Start accepts. Automaton has 54557 states and 80600 transitions. Word has length 84 [2024-10-11 03:43:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:22,822 INFO L471 AbstractCegarLoop]: Abstraction has 54557 states and 80600 transitions. [2024-10-11 03:43:22,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:22,822 INFO L276 IsEmpty]: Start isEmpty. Operand 54557 states and 80600 transitions. [2024-10-11 03:43:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:43:22,835 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:22,836 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:22,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:43:22,836 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:22,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1418496759, now seen corresponding path program 1 times [2024-10-11 03:43:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:22,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186882791] [2024-10-11 03:43:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:22,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:22,924 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 03:43:22,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:22,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186882791] [2024-10-11 03:43:22,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186882791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:22,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:22,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:43:22,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809391794] [2024-10-11 03:43:22,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:22,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:43:22,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:22,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:43:22,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:43:22,928 INFO L87 Difference]: Start difference. First operand 54557 states and 80600 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:23,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:23,414 INFO L93 Difference]: Finished difference Result 90487 states and 133319 transitions. [2024-10-11 03:43:23,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:43:23,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-11 03:43:23,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:23,505 INFO L225 Difference]: With dead ends: 90487 [2024-10-11 03:43:23,505 INFO L226 Difference]: Without dead ends: 61933 [2024-10-11 03:43:23,547 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 03:43:23,548 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 171 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:23,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 533 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:43:23,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61933 states. [2024-10-11 03:43:24,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61933 to 61380. [2024-10-11 03:43:24,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61380 states, 61379 states have (on average 1.4515387999152805) internal successors, (89094), 61379 states have internal predecessors, (89094), 0 states have call successors, (0), 0 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 03:43:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61380 states to 61380 states and 89094 transitions. [2024-10-11 03:43:24,609 INFO L78 Accepts]: Start accepts. Automaton has 61380 states and 89094 transitions. Word has length 84 [2024-10-11 03:43:24,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:24,609 INFO L471 AbstractCegarLoop]: Abstraction has 61380 states and 89094 transitions. [2024-10-11 03:43:24,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:24,610 INFO L276 IsEmpty]: Start isEmpty. Operand 61380 states and 89094 transitions. [2024-10-11 03:43:24,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:43:24,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:24,622 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:24,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:43:24,622 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:24,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:24,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1932108068, now seen corresponding path program 1 times [2024-10-11 03:43:24,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:24,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291272471] [2024-10-11 03:43:24,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:24,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:24,716 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 03:43:24,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:24,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291272471] [2024-10-11 03:43:24,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291272471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:24,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:24,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:43:24,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295330775] [2024-10-11 03:43:24,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:24,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:43:24,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:24,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:43:24,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:43:24,720 INFO L87 Difference]: Start difference. First operand 61380 states and 89094 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:25,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:25,340 INFO L93 Difference]: Finished difference Result 83829 states and 121193 transitions. [2024-10-11 03:43:25,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:43:25,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-11 03:43:25,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:25,549 INFO L225 Difference]: With dead ends: 83829 [2024-10-11 03:43:25,549 INFO L226 Difference]: Without dead ends: 62995 [2024-10-11 03:43:25,564 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 03:43:25,565 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 163 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:25,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 534 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:43:25,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62995 states. [2024-10-11 03:43:26,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62995 to 56785. [2024-10-11 03:43:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56785 states, 56784 states have (on average 1.4281311637080867) internal successors, (81095), 56784 states have internal predecessors, (81095), 0 states have call successors, (0), 0 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 03:43:26,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56785 states to 56785 states and 81095 transitions. [2024-10-11 03:43:26,562 INFO L78 Accepts]: Start accepts. Automaton has 56785 states and 81095 transitions. Word has length 84 [2024-10-11 03:43:26,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:26,563 INFO L471 AbstractCegarLoop]: Abstraction has 56785 states and 81095 transitions. [2024-10-11 03:43:26,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:26,563 INFO L276 IsEmpty]: Start isEmpty. Operand 56785 states and 81095 transitions. [2024-10-11 03:43:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:43:26,571 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:26,571 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:26,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:43:26,572 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:26,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:26,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1919152151, now seen corresponding path program 1 times [2024-10-11 03:43:26,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:26,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404195023] [2024-10-11 03:43:26,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:26,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:43:26,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:26,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404195023] [2024-10-11 03:43:26,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404195023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:26,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:26,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:43:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504760320] [2024-10-11 03:43:26,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:26,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:43:26,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:26,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:43:26,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:26,750 INFO L87 Difference]: Start difference. First operand 56785 states and 81095 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:27,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:27,322 INFO L93 Difference]: Finished difference Result 142548 states and 204891 transitions. [2024-10-11 03:43:27,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:43:27,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-11 03:43:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:27,513 INFO L225 Difference]: With dead ends: 142548 [2024-10-11 03:43:27,513 INFO L226 Difference]: Without dead ends: 116790 [2024-10-11 03:43:27,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:43:27,568 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 1661 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:27,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 1729 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:43:27,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116790 states. [2024-10-11 03:43:29,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116790 to 82306. [2024-10-11 03:43:29,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82306 states, 82305 states have (on average 1.4275074418322096) internal successors, (117491), 82305 states have internal predecessors, (117491), 0 states have call successors, (0), 0 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 03:43:29,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82306 states to 82306 states and 117491 transitions. [2024-10-11 03:43:29,270 INFO L78 Accepts]: Start accepts. Automaton has 82306 states and 117491 transitions. Word has length 84 [2024-10-11 03:43:29,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:29,271 INFO L471 AbstractCegarLoop]: Abstraction has 82306 states and 117491 transitions. [2024-10-11 03:43:29,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:29,271 INFO L276 IsEmpty]: Start isEmpty. Operand 82306 states and 117491 transitions. [2024-10-11 03:43:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:43:29,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:29,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:29,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:43:29,280 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:29,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:29,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1838586634, now seen corresponding path program 1 times [2024-10-11 03:43:29,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:29,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871970328] [2024-10-11 03:43:29,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:29,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:29,496 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 03:43:29,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:29,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871970328] [2024-10-11 03:43:29,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871970328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:29,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:29,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:43:29,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823339726] [2024-10-11 03:43:29,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:29,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:43:29,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:29,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:43:29,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:29,499 INFO L87 Difference]: Start difference. First operand 82306 states and 117491 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:30,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:30,288 INFO L93 Difference]: Finished difference Result 152038 states and 218303 transitions. [2024-10-11 03:43:30,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:43:30,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-11 03:43:30,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:30,561 INFO L225 Difference]: With dead ends: 152038 [2024-10-11 03:43:30,561 INFO L226 Difference]: Without dead ends: 134312 [2024-10-11 03:43:30,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:43:30,620 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 1826 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:30,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 1636 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:43:30,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134312 states. [2024-10-11 03:43:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134312 to 99849. [2024-10-11 03:43:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99849 states, 99848 states have (on average 1.4279905456293567) internal successors, (142582), 99848 states have internal predecessors, (142582), 0 states have call successors, (0), 0 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 03:43:32,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99849 states to 99849 states and 142582 transitions. [2024-10-11 03:43:32,821 INFO L78 Accepts]: Start accepts. Automaton has 99849 states and 142582 transitions. Word has length 84 [2024-10-11 03:43:32,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:32,821 INFO L471 AbstractCegarLoop]: Abstraction has 99849 states and 142582 transitions. [2024-10-11 03:43:32,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:32,822 INFO L276 IsEmpty]: Start isEmpty. Operand 99849 states and 142582 transitions. [2024-10-11 03:43:32,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:43:32,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:32,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:32,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:43:32,830 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:32,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:32,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1568276092, now seen corresponding path program 1 times [2024-10-11 03:43:32,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:32,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231609208] [2024-10-11 03:43:32,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:32,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:32,997 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 03:43:32,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:32,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231609208] [2024-10-11 03:43:32,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231609208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:32,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:32,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:43:32,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059689294] [2024-10-11 03:43:32,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:32,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:43:32,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:32,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:43:32,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:32,999 INFO L87 Difference]: Start difference. First operand 99849 states and 142582 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:33,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:33,654 INFO L93 Difference]: Finished difference Result 150930 states and 216417 transitions. [2024-10-11 03:43:33,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:43:33,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-11 03:43:33,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:34,488 INFO L225 Difference]: With dead ends: 150930 [2024-10-11 03:43:34,488 INFO L226 Difference]: Without dead ends: 145780 [2024-10-11 03:43:34,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:43:34,505 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 1763 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:34,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 1784 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:43:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145780 states. [2024-10-11 03:43:36,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145780 to 104925. [2024-10-11 03:43:36,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104925 states, 104924 states have (on average 1.4281575235408486) internal successors, (149848), 104924 states have internal predecessors, (149848), 0 states have call successors, (0), 0 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 03:43:36,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104925 states to 104925 states and 149848 transitions. [2024-10-11 03:43:36,353 INFO L78 Accepts]: Start accepts. Automaton has 104925 states and 149848 transitions. Word has length 84 [2024-10-11 03:43:36,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:36,353 INFO L471 AbstractCegarLoop]: Abstraction has 104925 states and 149848 transitions. [2024-10-11 03:43:36,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 104925 states and 149848 transitions. [2024-10-11 03:43:36,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 03:43:36,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:36,362 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:43:36,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:43:36,363 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:36,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:36,363 INFO L85 PathProgramCache]: Analyzing trace with hash 589823305, now seen corresponding path program 1 times [2024-10-11 03:43:36,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:36,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613679037] [2024-10-11 03:43:36,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:36,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:36,571 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 03:43:36,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:36,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613679037] [2024-10-11 03:43:36,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613679037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:36,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:36,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:43:36,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771312444] [2024-10-11 03:43:36,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:36,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:43:36,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:36,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:43:36,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:36,573 INFO L87 Difference]: Start difference. First operand 104925 states and 149848 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:37,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:37,336 INFO L93 Difference]: Finished difference Result 162294 states and 232763 transitions. [2024-10-11 03:43:37,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:43:37,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-11 03:43:37,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:38,349 INFO L225 Difference]: With dead ends: 162294 [2024-10-11 03:43:38,350 INFO L226 Difference]: Without dead ends: 150760 [2024-10-11 03:43:38,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:43:38,389 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 1569 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:38,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 2039 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:43:38,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150760 states. [2024-10-11 03:43:39,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150760 to 112149. [2024-10-11 03:43:39,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112149 states, 112148 states have (on average 1.429165031922103) internal successors, (160278), 112148 states have internal predecessors, (160278), 0 states have call successors, (0), 0 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 03:43:40,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112149 states to 112149 states and 160278 transitions. [2024-10-11 03:43:40,153 INFO L78 Accepts]: Start accepts. Automaton has 112149 states and 160278 transitions. Word has length 84 [2024-10-11 03:43:40,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:40,154 INFO L471 AbstractCegarLoop]: Abstraction has 112149 states and 160278 transitions. [2024-10-11 03:43:40,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:40,154 INFO L276 IsEmpty]: Start isEmpty. Operand 112149 states and 160278 transitions. [2024-10-11 03:43:40,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 03:43:40,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:40,166 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 03:43:40,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:43:40,167 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:40,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:40,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1918565360, now seen corresponding path program 1 times [2024-10-11 03:43:40,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:40,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904218594] [2024-10-11 03:43:40,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:40,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:40,358 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 03:43:40,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:40,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904218594] [2024-10-11 03:43:40,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904218594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:40,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:40,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 03:43:40,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11537953] [2024-10-11 03:43:40,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:40,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:43:40,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:40,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:43:40,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:40,360 INFO L87 Difference]: Start difference. First operand 112149 states and 160278 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:41,779 INFO L93 Difference]: Finished difference Result 204103 states and 292815 transitions. [2024-10-11 03:43:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 03:43:41,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-11 03:43:41,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:42,141 INFO L225 Difference]: With dead ends: 204103 [2024-10-11 03:43:42,141 INFO L226 Difference]: Without dead ends: 176249 [2024-10-11 03:43:42,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:43:42,189 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1668 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:42,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 2050 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:43:42,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176249 states. [2024-10-11 03:43:44,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176249 to 131138. [2024-10-11 03:43:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131138 states, 131137 states have (on average 1.4291161152077598) internal successors, (187410), 131137 states have internal predecessors, (187410), 0 states have call successors, (0), 0 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 03:43:44,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131138 states to 131138 states and 187410 transitions. [2024-10-11 03:43:44,558 INFO L78 Accepts]: Start accepts. Automaton has 131138 states and 187410 transitions. Word has length 85 [2024-10-11 03:43:44,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:44,558 INFO L471 AbstractCegarLoop]: Abstraction has 131138 states and 187410 transitions. [2024-10-11 03:43:44,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:43:44,558 INFO L276 IsEmpty]: Start isEmpty. Operand 131138 states and 187410 transitions. [2024-10-11 03:43:44,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 03:43:44,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:44,571 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 03:43:44,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 03:43:44,571 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:44,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:44,571 INFO L85 PathProgramCache]: Analyzing trace with hash -931169472, now seen corresponding path program 1 times [2024-10-11 03:43:44,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:44,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745327912] [2024-10-11 03:43:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:44,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:45,311 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 03:43:45,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:45,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745327912] [2024-10-11 03:43:45,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745327912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:45,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:45,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:43:45,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618444981] [2024-10-11 03:43:45,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:45,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:43:45,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:45,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:43:45,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:43:45,317 INFO L87 Difference]: Start difference. First operand 131138 states and 187410 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 03:43:46,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:46,111 INFO L93 Difference]: Finished difference Result 286520 states and 407655 transitions. [2024-10-11 03:43:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:43:46,112 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 03:43:46,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:46,368 INFO L225 Difference]: With dead ends: 286520 [2024-10-11 03:43:46,368 INFO L226 Difference]: Without dead ends: 160529 [2024-10-11 03:43:46,470 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 03:43:46,470 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 186 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:46,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 640 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:43:46,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160529 states. [2024-10-11 03:43:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160529 to 144009. [2024-10-11 03:43:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144009 states, 144008 states have (on average 1.3987972890394977) internal successors, (201438), 144008 states have internal predecessors, (201438), 0 states have call successors, (0), 0 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 03:43:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144009 states to 144009 states and 201438 transitions. [2024-10-11 03:43:49,132 INFO L78 Accepts]: Start accepts. Automaton has 144009 states and 201438 transitions. Word has length 87 [2024-10-11 03:43:49,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:49,132 INFO L471 AbstractCegarLoop]: Abstraction has 144009 states and 201438 transitions. [2024-10-11 03:43:49,132 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 03:43:49,132 INFO L276 IsEmpty]: Start isEmpty. Operand 144009 states and 201438 transitions. [2024-10-11 03:43:49,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 03:43:49,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:49,149 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 03:43:49,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:43:49,149 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:49,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:49,150 INFO L85 PathProgramCache]: Analyzing trace with hash -568528588, now seen corresponding path program 1 times [2024-10-11 03:43:49,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:49,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359931682] [2024-10-11 03:43:49,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:49,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:49,329 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 03:43:49,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:49,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359931682] [2024-10-11 03:43:49,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359931682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:49,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:49,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:43:49,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640408363] [2024-10-11 03:43:49,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:49,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:43:49,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:49,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:43:49,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:49,332 INFO L87 Difference]: Start difference. First operand 144009 states and 201438 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 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 03:43:51,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:51,591 INFO L93 Difference]: Finished difference Result 374383 states and 522447 transitions. [2024-10-11 03:43:51,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:43:51,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 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 03:43:51,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:52,292 INFO L225 Difference]: With dead ends: 374383 [2024-10-11 03:43:52,292 INFO L226 Difference]: Without dead ends: 320723 [2024-10-11 03:43:52,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:43:52,425 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 2119 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:52,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 568 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:43:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320723 states. [2024-10-11 03:43:55,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320723 to 144057. [2024-10-11 03:43:55,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144057 states, 144056 states have (on average 1.3987754762036986) internal successors, (201502), 144056 states have internal predecessors, (201502), 0 states have call successors, (0), 0 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 03:43:55,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144057 states to 144057 states and 201502 transitions. [2024-10-11 03:43:55,844 INFO L78 Accepts]: Start accepts. Automaton has 144057 states and 201502 transitions. Word has length 89 [2024-10-11 03:43:55,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:43:55,844 INFO L471 AbstractCegarLoop]: Abstraction has 144057 states and 201502 transitions. [2024-10-11 03:43:55,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 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 03:43:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 144057 states and 201502 transitions. [2024-10-11 03:43:55,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 03:43:55,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:43:55,859 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 03:43:55,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 03:43:55,859 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:43:55,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:43:55,860 INFO L85 PathProgramCache]: Analyzing trace with hash -63333267, now seen corresponding path program 1 times [2024-10-11 03:43:55,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:43:55,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046817127] [2024-10-11 03:43:55,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:43:55,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:43:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:43:56,014 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 03:43:56,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:43:56,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046817127] [2024-10-11 03:43:56,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046817127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:43:56,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:43:56,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:43:56,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387686767] [2024-10-11 03:43:56,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:43:56,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:43:56,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:43:56,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:43:56,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:43:56,017 INFO L87 Difference]: Start difference. First operand 144057 states and 201502 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 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 03:43:58,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:43:58,566 INFO L93 Difference]: Finished difference Result 487579 states and 678266 transitions. [2024-10-11 03:43:58,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:43:58,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 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 03:43:58,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:43:59,386 INFO L225 Difference]: With dead ends: 487579 [2024-10-11 03:43:59,386 INFO L226 Difference]: Without dead ends: 418689 [2024-10-11 03:43:59,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:43:59,522 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1886 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:43:59,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 570 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:43:59,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418689 states.