./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.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ccd47f3526eef69b5bf2f51fee8d66c64e4c81e1dda46c7d333fbe79bb4350dd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:43:40,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:43:40,524 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:43:40,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:43:40,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:43:40,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:43:40,551 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:43:40,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:43:40,552 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:43:40,553 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:43:40,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:43:40,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:43:40,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:43:40,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:43:40,557 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:43:40,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:43:40,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:43:40,558 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:43:40,558 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:43:40,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:43:40,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:43:40,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:43:40,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:43:40,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:43:40,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:43:40,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:43:40,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:43:40,561 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:43:40,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:43:40,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:43:40,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:43:40,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:43:40,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:43:40,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:43:40,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:43:40,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:43:40,563 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:43:40,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:43:40,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:43:40,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:43:40,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:43:40,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:43:40,564 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccd47f3526eef69b5bf2f51fee8d66c64e4c81e1dda46c7d333fbe79bb4350dd [2024-10-24 01:43:40,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:43:40,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:43:40,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:43:40,761 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:43:40,763 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:43:40,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-24 01:43:42,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:43:42,242 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:43:42,243 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-24 01:43:42,259 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/154da9b72/3594806e90de46069d331bfa752cd206/FLAG075b04588 [2024-10-24 01:43:42,275 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/154da9b72/3594806e90de46069d331bfa752cd206 [2024-10-24 01:43:42,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:43:42,279 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:43:42,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:43:42,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:43:42,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:43:42,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:42,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42fcf578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42, skipping insertion in model container [2024-10-24 01:43:42,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:42,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:43:42,639 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.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-10-24 01:43:42,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:43:42,729 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:43:42,789 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-10-24 01:43:42,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:43:42,938 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:43:42,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42 WrapperNode [2024-10-24 01:43:42,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:43:42,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:43:42,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:43:42,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:43:42,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:42,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:42,998 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 881 [2024-10-24 01:43:42,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:43:43,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:43:43,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:43:43,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:43:43,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,014 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,028 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 01:43:43,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:43:43,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:43:43,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:43:43,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:43:43,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (1/1) ... [2024-10-24 01:43:43,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:43:43,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:43:43,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 01:43:43,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 01:43:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:43:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:43:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:43:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:43:43,241 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:43:43,243 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:43:43,824 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-10-24 01:43:43,824 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:43:43,893 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:43:43,894 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:43:43,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:43:43 BoogieIcfgContainer [2024-10-24 01:43:43,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:43:43,896 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:43:43,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:43:43,900 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:43:43,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:43:42" (1/3) ... [2024-10-24 01:43:43,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3adc277a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:43:43, skipping insertion in model container [2024-10-24 01:43:43,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:42" (2/3) ... [2024-10-24 01:43:43,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3adc277a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:43:43, skipping insertion in model container [2024-10-24 01:43:43,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:43:43" (3/3) ... [2024-10-24 01:43:43,903 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-24 01:43:43,916 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:43:43,916 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:43:43,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:43:43,966 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;@7100e656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:43:43,967 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:43:43,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:43,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 01:43:43,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:43,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:43,978 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:43,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:43,982 INFO L85 PathProgramCache]: Analyzing trace with hash -474104543, now seen corresponding path program 1 times [2024-10-24 01:43:43,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:43,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454421980] [2024-10-24 01:43:43,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:43,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:44,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:44,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:44,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454421980] [2024-10-24 01:43:44,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454421980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:44,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:44,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:43:44,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185081961] [2024-10-24 01:43:44,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:44,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:44,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:44,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:44,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:44,756 INFO L87 Difference]: Start difference. First operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 0 states have call successors, (0), 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 11.428571428571429) 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) [2024-10-24 01:43:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:45,050 INFO L93 Difference]: Finished difference Result 860 states and 1396 transitions. [2024-10-24 01:43:45,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:43:45,053 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 [2024-10-24 01:43:45,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:45,064 INFO L225 Difference]: With dead ends: 860 [2024-10-24 01:43:45,064 INFO L226 Difference]: Without dead ends: 747 [2024-10-24 01:43:45,071 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 [2024-10-24 01:43:45,074 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 2247 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:45,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2247 Valid, 2297 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:45,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-10-24 01:43:45,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 328. [2024-10-24 01:43:45,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.5015290519877675) internal successors, (491), 327 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:45,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 491 transitions. [2024-10-24 01:43:45,133 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 491 transitions. Word has length 80 [2024-10-24 01:43:45,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:45,134 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 491 transitions. [2024-10-24 01:43:45,134 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) [2024-10-24 01:43:45,134 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 491 transitions. [2024-10-24 01:43:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 01:43:45,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:45,136 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:45,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:43:45,137 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:45,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash -2091304489, now seen corresponding path program 1 times [2024-10-24 01:43:45,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:45,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286756683] [2024-10-24 01:43:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:45,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:45,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:45,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286756683] [2024-10-24 01:43:45,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286756683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:45,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:45,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:43:45,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985927314] [2024-10-24 01:43:45,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:45,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:45,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:45,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:45,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:45,614 INFO L87 Difference]: Start difference. First operand 328 states and 491 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:45,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:45,892 INFO L93 Difference]: Finished difference Result 1424 states and 2198 transitions. [2024-10-24 01:43:45,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:43:45,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-24 01:43:45,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:45,897 INFO L225 Difference]: With dead ends: 1424 [2024-10-24 01:43:45,898 INFO L226 Difference]: Without dead ends: 1176 [2024-10-24 01:43:45,899 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 [2024-10-24 01:43:45,901 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 1127 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:45,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1779 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:45,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-10-24 01:43:45,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1168. [2024-10-24 01:43:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1167 states have (on average 1.5389888603256212) internal successors, (1796), 1167 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:45,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1796 transitions. [2024-10-24 01:43:45,949 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1796 transitions. Word has length 81 [2024-10-24 01:43:45,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:45,951 INFO L471 AbstractCegarLoop]: Abstraction has 1168 states and 1796 transitions. [2024-10-24 01:43:45,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:45,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1796 transitions. [2024-10-24 01:43:45,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:43:45,960 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:45,960 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:45,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:43:45,960 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:45,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:45,961 INFO L85 PathProgramCache]: Analyzing trace with hash -680835100, now seen corresponding path program 1 times [2024-10-24 01:43:45,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:45,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698157991] [2024-10-24 01:43:45,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:45,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:46,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:46,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:46,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698157991] [2024-10-24 01:43:46,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698157991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:46,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:46,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:46,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529396665] [2024-10-24 01:43:46,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:46,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:46,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:46,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:46,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:46,131 INFO L87 Difference]: Start difference. First operand 1168 states and 1796 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) [2024-10-24 01:43:46,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:46,371 INFO L93 Difference]: Finished difference Result 3225 states and 5016 transitions. [2024-10-24 01:43:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:46,372 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 [2024-10-24 01:43:46,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:46,379 INFO L225 Difference]: With dead ends: 3225 [2024-10-24 01:43:46,379 INFO L226 Difference]: Without dead ends: 2099 [2024-10-24 01:43:46,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:46,383 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1231 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:46,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 288 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:46,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2024-10-24 01:43:46,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2097. [2024-10-24 01:43:46,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2097 states, 2096 states have (on average 1.5481870229007633) internal successors, (3245), 2096 states have internal predecessors, (3245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 3245 transitions. [2024-10-24 01:43:46,446 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 3245 transitions. Word has length 82 [2024-10-24 01:43:46,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:46,447 INFO L471 AbstractCegarLoop]: Abstraction has 2097 states and 3245 transitions. [2024-10-24 01:43:46,447 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) [2024-10-24 01:43:46,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 3245 transitions. [2024-10-24 01:43:46,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:43:46,452 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:46,452 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:46,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:43:46,452 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:46,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:46,453 INFO L85 PathProgramCache]: Analyzing trace with hash -107615691, now seen corresponding path program 1 times [2024-10-24 01:43:46,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:46,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339695009] [2024-10-24 01:43:46,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:46,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:46,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:46,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:46,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339695009] [2024-10-24 01:43:46,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339695009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:46,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:46,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:46,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186942532] [2024-10-24 01:43:46,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:46,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:46,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:46,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:46,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:46,626 INFO L87 Difference]: Start difference. First operand 2097 states and 3245 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) [2024-10-24 01:43:46,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:46,851 INFO L93 Difference]: Finished difference Result 5895 states and 9183 transitions. [2024-10-24 01:43:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:46,851 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 [2024-10-24 01:43:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:46,862 INFO L225 Difference]: With dead ends: 5895 [2024-10-24 01:43:46,862 INFO L226 Difference]: Without dead ends: 3856 [2024-10-24 01:43:46,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:46,870 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1191 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:46,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 292 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:46,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2024-10-24 01:43:46,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 3854. [2024-10-24 01:43:46,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 1.5491824552296911) internal successors, (5969), 3853 states have internal predecessors, (5969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 5969 transitions. [2024-10-24 01:43:46,929 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 5969 transitions. Word has length 82 [2024-10-24 01:43:46,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:46,930 INFO L471 AbstractCegarLoop]: Abstraction has 3854 states and 5969 transitions. [2024-10-24 01:43:46,930 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) [2024-10-24 01:43:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 5969 transitions. [2024-10-24 01:43:46,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:43:46,933 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:46,933 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:46,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:43:46,934 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:46,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash 565371462, now seen corresponding path program 1 times [2024-10-24 01:43:46,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:46,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379246738] [2024-10-24 01:43:46,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:46,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:47,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:47,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:47,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379246738] [2024-10-24 01:43:47,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379246738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:47,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:47,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:47,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341005894] [2024-10-24 01:43:47,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:47,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:47,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:47,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:47,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:47,047 INFO L87 Difference]: Start difference. First operand 3854 states and 5969 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) [2024-10-24 01:43:47,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:47,264 INFO L93 Difference]: Finished difference Result 10979 states and 17064 transitions. [2024-10-24 01:43:47,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:47,265 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 [2024-10-24 01:43:47,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:47,290 INFO L225 Difference]: With dead ends: 10979 [2024-10-24 01:43:47,291 INFO L226 Difference]: Without dead ends: 7206 [2024-10-24 01:43:47,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:47,302 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1153 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:47,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 294 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7206 states. [2024-10-24 01:43:47,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7206 to 7204. [2024-10-24 01:43:47,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7204 states, 7203 states have (on average 1.545328335415799) internal successors, (11131), 7203 states have internal predecessors, (11131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7204 states to 7204 states and 11131 transitions. [2024-10-24 01:43:47,438 INFO L78 Accepts]: Start accepts. Automaton has 7204 states and 11131 transitions. Word has length 82 [2024-10-24 01:43:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:47,439 INFO L471 AbstractCegarLoop]: Abstraction has 7204 states and 11131 transitions. [2024-10-24 01:43:47,439 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) [2024-10-24 01:43:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 7204 states and 11131 transitions. [2024-10-24 01:43:47,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:43:47,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:47,442 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:47,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:43:47,443 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:47,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:47,443 INFO L85 PathProgramCache]: Analyzing trace with hash -563630057, now seen corresponding path program 1 times [2024-10-24 01:43:47,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:47,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777461656] [2024-10-24 01:43:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:47,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:47,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:47,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777461656] [2024-10-24 01:43:47,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777461656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:47,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:47,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:47,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478417890] [2024-10-24 01:43:47,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:47,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:47,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:47,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:47,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:47,528 INFO L87 Difference]: Start difference. First operand 7204 states and 11131 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) [2024-10-24 01:43:47,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:47,748 INFO L93 Difference]: Finished difference Result 20742 states and 32106 transitions. [2024-10-24 01:43:47,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:47,748 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 [2024-10-24 01:43:47,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:47,783 INFO L225 Difference]: With dead ends: 20742 [2024-10-24 01:43:47,783 INFO L226 Difference]: Without dead ends: 13649 [2024-10-24 01:43:47,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:47,797 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1115 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:47,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 296 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13649 states. [2024-10-24 01:43:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13649 to 13647. [2024-10-24 01:43:48,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13647 states, 13646 states have (on average 1.5395720357613953) internal successors, (21009), 13646 states have internal predecessors, (21009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:48,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13647 states to 13647 states and 21009 transitions. [2024-10-24 01:43:48,049 INFO L78 Accepts]: Start accepts. Automaton has 13647 states and 21009 transitions. Word has length 82 [2024-10-24 01:43:48,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:48,049 INFO L471 AbstractCegarLoop]: Abstraction has 13647 states and 21009 transitions. [2024-10-24 01:43:48,050 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) [2024-10-24 01:43:48,050 INFO L276 IsEmpty]: Start isEmpty. Operand 13647 states and 21009 transitions. [2024-10-24 01:43:48,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:43:48,054 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:48,054 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:48,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:43:48,054 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:48,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:48,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1335241816, now seen corresponding path program 1 times [2024-10-24 01:43:48,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:48,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224326667] [2024-10-24 01:43:48,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:48,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:48,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:48,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:48,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224326667] [2024-10-24 01:43:48,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224326667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:48,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:48,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:48,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958667757] [2024-10-24 01:43:48,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:48,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:48,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:48,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:48,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:48,138 INFO L87 Difference]: Start difference. First operand 13647 states and 21009 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) [2024-10-24 01:43:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:48,470 INFO L93 Difference]: Finished difference Result 39951 states and 61617 transitions. [2024-10-24 01:43:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:48,472 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 [2024-10-24 01:43:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:48,517 INFO L225 Difference]: With dead ends: 39951 [2024-10-24 01:43:48,518 INFO L226 Difference]: Without dead ends: 26449 [2024-10-24 01:43:48,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:48,536 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1101 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:48,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 305 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:48,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26449 states. [2024-10-24 01:43:49,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26449 to 26447. [2024-10-24 01:43:49,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26447 states, 26446 states have (on average 1.5359600695757392) internal successors, (40620), 26446 states have internal predecessors, (40620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26447 states to 26447 states and 40620 transitions. [2024-10-24 01:43:49,192 INFO L78 Accepts]: Start accepts. Automaton has 26447 states and 40620 transitions. Word has length 82 [2024-10-24 01:43:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:49,192 INFO L471 AbstractCegarLoop]: Abstraction has 26447 states and 40620 transitions. [2024-10-24 01:43:49,192 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) [2024-10-24 01:43:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 26447 states and 40620 transitions. [2024-10-24 01:43:49,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 01:43:49,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:49,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:49,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:43:49,198 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:49,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:49,198 INFO L85 PathProgramCache]: Analyzing trace with hash -375543261, now seen corresponding path program 1 times [2024-10-24 01:43:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:49,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563673766] [2024-10-24 01:43:49,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:49,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:49,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:49,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:49,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563673766] [2024-10-24 01:43:49,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563673766] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:49,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:49,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:43:49,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678208800] [2024-10-24 01:43:49,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:49,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:49,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:49,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:49,700 INFO L87 Difference]: Start difference. First operand 26447 states and 40620 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:49,865 INFO L93 Difference]: Finished difference Result 27089 states and 41581 transitions. [2024-10-24 01:43:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:49,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-24 01:43:49,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:49,953 INFO L225 Difference]: With dead ends: 27089 [2024-10-24 01:43:49,953 INFO L226 Difference]: Without dead ends: 27087 [2024-10-24 01:43:49,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:49,974 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 0 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:49,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1157 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:50,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27087 states. [2024-10-24 01:43:50,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27087 to 27087. [2024-10-24 01:43:50,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27087 states, 27086 states have (on average 1.5232961677619434) internal successors, (41260), 27086 states have internal predecessors, (41260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27087 states to 27087 states and 41260 transitions. [2024-10-24 01:43:50,486 INFO L78 Accepts]: Start accepts. Automaton has 27087 states and 41260 transitions. Word has length 83 [2024-10-24 01:43:50,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:50,487 INFO L471 AbstractCegarLoop]: Abstraction has 27087 states and 41260 transitions. [2024-10-24 01:43:50,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:50,487 INFO L276 IsEmpty]: Start isEmpty. Operand 27087 states and 41260 transitions. [2024-10-24 01:43:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:43:50,493 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:50,493 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:50,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:43:50,494 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:50,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:50,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1521514654, now seen corresponding path program 1 times [2024-10-24 01:43:50,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:50,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722447852] [2024-10-24 01:43:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:50,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:50,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:50,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:50,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722447852] [2024-10-24 01:43:50,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722447852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:50,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:50,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:43:50,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107881463] [2024-10-24 01:43:50,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:50,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:43:50,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:50,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:43:50,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:50,900 INFO L87 Difference]: Start difference. First operand 27087 states and 41260 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:51,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:51,954 INFO L93 Difference]: Finished difference Result 68239 states and 103252 transitions. [2024-10-24 01:43:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:43:51,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-24 01:43:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:52,012 INFO L225 Difference]: With dead ends: 68239 [2024-10-24 01:43:52,013 INFO L226 Difference]: Without dead ends: 41716 [2024-10-24 01:43:52,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-24 01:43:52,034 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 886 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:52,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 982 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 01:43:52,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41716 states. [2024-10-24 01:43:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41716 to 27169. [2024-10-24 01:43:52,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27169 states, 27168 states have (on average 1.5219743816254416) internal successors, (41349), 27168 states have internal predecessors, (41349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:52,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27169 states to 27169 states and 41349 transitions. [2024-10-24 01:43:52,533 INFO L78 Accepts]: Start accepts. Automaton has 27169 states and 41349 transitions. Word has length 84 [2024-10-24 01:43:52,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:52,534 INFO L471 AbstractCegarLoop]: Abstraction has 27169 states and 41349 transitions. [2024-10-24 01:43:52,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:52,534 INFO L276 IsEmpty]: Start isEmpty. Operand 27169 states and 41349 transitions. [2024-10-24 01:43:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:43:52,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:52,539 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:52,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:43:52,539 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:52,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:52,540 INFO L85 PathProgramCache]: Analyzing trace with hash 462552190, now seen corresponding path program 1 times [2024-10-24 01:43:52,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:52,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003774006] [2024-10-24 01:43:52,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:52,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:52,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:52,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003774006] [2024-10-24 01:43:52,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003774006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:52,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:52,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:52,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587704397] [2024-10-24 01:43:52,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:52,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:43:52,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:52,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:43:52,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:43:52,820 INFO L87 Difference]: Start difference. First operand 27169 states and 41349 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:53,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:53,010 INFO L93 Difference]: Finished difference Result 76389 states and 116023 transitions. [2024-10-24 01:43:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:43:53,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-24 01:43:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:53,082 INFO L225 Difference]: With dead ends: 76389 [2024-10-24 01:43:53,083 INFO L226 Difference]: Without dead ends: 50147 [2024-10-24 01:43:53,119 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 [2024-10-24 01:43:53,120 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 242 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:53,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 717 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50147 states. [2024-10-24 01:43:53,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50147 to 50145. [2024-10-24 01:43:53,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50145 states, 50144 states have (on average 1.5093530631780472) internal successors, (75685), 50144 states have internal predecessors, (75685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50145 states to 50145 states and 75685 transitions. [2024-10-24 01:43:53,771 INFO L78 Accepts]: Start accepts. Automaton has 50145 states and 75685 transitions. Word has length 84 [2024-10-24 01:43:53,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:53,772 INFO L471 AbstractCegarLoop]: Abstraction has 50145 states and 75685 transitions. [2024-10-24 01:43:53,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 50145 states and 75685 transitions. [2024-10-24 01:43:53,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:43:53,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:53,777 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:53,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:43:53,778 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:53,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:53,778 INFO L85 PathProgramCache]: Analyzing trace with hash -887764282, now seen corresponding path program 1 times [2024-10-24 01:43:53,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:53,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318147272] [2024-10-24 01:43:53,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:53,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:53,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:53,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318147272] [2024-10-24 01:43:53,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318147272] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:53,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:53,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:53,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217059389] [2024-10-24 01:43:53,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:53,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:53,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:53,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:53,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:53,825 INFO L87 Difference]: Start difference. First operand 50145 states and 75685 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:54,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:54,309 INFO L93 Difference]: Finished difference Result 108249 states and 163254 transitions. [2024-10-24 01:43:54,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:54,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-24 01:43:54,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:54,613 INFO L225 Difference]: With dead ends: 108249 [2024-10-24 01:43:54,613 INFO L226 Difference]: Without dead ends: 66215 [2024-10-24 01:43:54,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:54,655 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 201 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 721 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 [2024-10-24 01:43:54,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 721 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:54,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66215 states. [2024-10-24 01:43:55,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66215 to 65737. [2024-10-24 01:43:55,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65737 states, 65736 states have (on average 1.4903705732018986) internal successors, (97971), 65736 states have internal predecessors, (97971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65737 states to 65737 states and 97971 transitions. [2024-10-24 01:43:55,680 INFO L78 Accepts]: Start accepts. Automaton has 65737 states and 97971 transitions. Word has length 85 [2024-10-24 01:43:55,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:55,680 INFO L471 AbstractCegarLoop]: Abstraction has 65737 states and 97971 transitions. [2024-10-24 01:43:55,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 65737 states and 97971 transitions. [2024-10-24 01:43:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:43:55,685 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:55,685 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:55,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:43:55,685 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:55,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:55,686 INFO L85 PathProgramCache]: Analyzing trace with hash 644137702, now seen corresponding path program 1 times [2024-10-24 01:43:55,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:55,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030276653] [2024-10-24 01:43:55,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:55,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:55,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030276653] [2024-10-24 01:43:55,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030276653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:55,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:55,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:43:55,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968914833] [2024-10-24 01:43:55,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:55,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:55,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:55,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:55,792 INFO L87 Difference]: Start difference. First operand 65737 states and 97971 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) [2024-10-24 01:43:56,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:56,446 INFO L93 Difference]: Finished difference Result 156403 states and 234127 transitions. [2024-10-24 01:43:56,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:43:56,447 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 [2024-10-24 01:43:56,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:56,650 INFO L225 Difference]: With dead ends: 156403 [2024-10-24 01:43:56,650 INFO L226 Difference]: Without dead ends: 131313 [2024-10-24 01:43:56,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:43:56,703 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1656 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:56,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 1920 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:56,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131313 states. [2024-10-24 01:43:58,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131313 to 90038. [2024-10-24 01:43:58,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90038 states, 90037 states have (on average 1.49025400668614) internal successors, (134178), 90037 states have internal predecessors, (134178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:58,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90038 states to 90038 states and 134178 transitions. [2024-10-24 01:43:58,323 INFO L78 Accepts]: Start accepts. Automaton has 90038 states and 134178 transitions. Word has length 85 [2024-10-24 01:43:58,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:58,324 INFO L471 AbstractCegarLoop]: Abstraction has 90038 states and 134178 transitions. [2024-10-24 01:43:58,324 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) [2024-10-24 01:43:58,324 INFO L276 IsEmpty]: Start isEmpty. Operand 90038 states and 134178 transitions. [2024-10-24 01:43:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:43:58,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:58,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:58,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:43:58,331 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:58,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash 2146135911, now seen corresponding path program 1 times [2024-10-24 01:43:58,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:58,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740228179] [2024-10-24 01:43:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:58,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:58,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:58,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:58,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740228179] [2024-10-24 01:43:58,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740228179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:58,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:58,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:58,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067281542] [2024-10-24 01:43:58,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:58,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:58,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:58,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:58,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:58,375 INFO L87 Difference]: Start difference. First operand 90038 states and 134178 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:59,307 INFO L93 Difference]: Finished difference Result 178133 states and 264877 transitions. [2024-10-24 01:43:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:59,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-24 01:43:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:59,468 INFO L225 Difference]: With dead ends: 178133 [2024-10-24 01:43:59,468 INFO L226 Difference]: Without dead ends: 110121 [2024-10-24 01:43:59,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:59,517 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 191 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 561 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 [2024-10-24 01:43:59,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 561 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110121 states. [2024-10-24 01:44:00,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110121 to 109320. [2024-10-24 01:44:01,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109320 states, 109319 states have (on average 1.4677137551569261) internal successors, (160449), 109319 states have internal predecessors, (160449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:01,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109320 states to 109320 states and 160449 transitions. [2024-10-24 01:44:01,231 INFO L78 Accepts]: Start accepts. Automaton has 109320 states and 160449 transitions. Word has length 85 [2024-10-24 01:44:01,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:01,231 INFO L471 AbstractCegarLoop]: Abstraction has 109320 states and 160449 transitions. [2024-10-24 01:44:01,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:01,231 INFO L276 IsEmpty]: Start isEmpty. Operand 109320 states and 160449 transitions. [2024-10-24 01:44:01,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:44:01,240 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:01,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:01,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:44:01,241 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:01,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:01,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1390110714, now seen corresponding path program 1 times [2024-10-24 01:44:01,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:01,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817275946] [2024-10-24 01:44:01,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:01,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:01,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:01,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:01,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817275946] [2024-10-24 01:44:01,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817275946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:01,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:01,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:01,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759929136] [2024-10-24 01:44:01,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:01,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:01,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:01,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:01,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:01,298 INFO L87 Difference]: Start difference. First operand 109320 states and 160449 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:01,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:01,853 INFO L93 Difference]: Finished difference Result 191474 states and 280150 transitions. [2024-10-24 01:44:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:01,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-24 01:44:01,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:02,034 INFO L225 Difference]: With dead ends: 191474 [2024-10-24 01:44:02,035 INFO L226 Difference]: Without dead ends: 126166 [2024-10-24 01:44:02,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:02,107 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 179 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 559 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 [2024-10-24 01:44:02,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 559 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:02,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126166 states. [2024-10-24 01:44:03,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126166 to 125045. [2024-10-24 01:44:03,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125045 states, 125044 states have (on average 1.4422523271808323) internal successors, (180345), 125044 states have internal predecessors, (180345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:04,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125045 states to 125045 states and 180345 transitions. [2024-10-24 01:44:04,141 INFO L78 Accepts]: Start accepts. Automaton has 125045 states and 180345 transitions. Word has length 85 [2024-10-24 01:44:04,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:04,142 INFO L471 AbstractCegarLoop]: Abstraction has 125045 states and 180345 transitions. [2024-10-24 01:44:04,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:04,142 INFO L276 IsEmpty]: Start isEmpty. Operand 125045 states and 180345 transitions. [2024-10-24 01:44:04,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:44:04,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:04,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:04,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:44:04,152 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:04,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:04,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1323205915, now seen corresponding path program 1 times [2024-10-24 01:44:04,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:04,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698955741] [2024-10-24 01:44:04,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:04,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:04,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:04,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698955741] [2024-10-24 01:44:04,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698955741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:04,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:04,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:04,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526747717] [2024-10-24 01:44:04,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:04,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:04,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:04,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:04,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:04,196 INFO L87 Difference]: Start difference. First operand 125045 states and 180345 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:05,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:05,131 INFO L93 Difference]: Finished difference Result 176540 states and 253492 transitions. [2024-10-24 01:44:05,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:05,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-24 01:44:05,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:05,407 INFO L225 Difference]: With dead ends: 176540 [2024-10-24 01:44:05,408 INFO L226 Difference]: Without dead ends: 128802 [2024-10-24 01:44:05,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:05,431 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 171 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 560 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 [2024-10-24 01:44:05,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 560 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:05,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128802 states. [2024-10-24 01:44:06,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128802 to 114660. [2024-10-24 01:44:07,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114660 states, 114659 states have (on average 1.4196356151719447) internal successors, (162774), 114659 states have internal predecessors, (162774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:07,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114660 states to 114660 states and 162774 transitions. [2024-10-24 01:44:07,264 INFO L78 Accepts]: Start accepts. Automaton has 114660 states and 162774 transitions. Word has length 85 [2024-10-24 01:44:07,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:07,264 INFO L471 AbstractCegarLoop]: Abstraction has 114660 states and 162774 transitions. [2024-10-24 01:44:07,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:07,265 INFO L276 IsEmpty]: Start isEmpty. Operand 114660 states and 162774 transitions. [2024-10-24 01:44:07,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:44:07,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:07,276 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:07,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:44:07,276 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:07,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:07,277 INFO L85 PathProgramCache]: Analyzing trace with hash 450218119, now seen corresponding path program 1 times [2024-10-24 01:44:07,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:07,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171760314] [2024-10-24 01:44:07,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:07,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:07,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:07,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171760314] [2024-10-24 01:44:07,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171760314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:07,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:07,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:07,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262283236] [2024-10-24 01:44:07,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:07,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:07,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:07,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:07,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:07,333 INFO L87 Difference]: Start difference. First operand 114660 states and 162774 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:08,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:08,918 INFO L93 Difference]: Finished difference Result 304860 states and 432279 transitions. [2024-10-24 01:44:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:08,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-24 01:44:08,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:09,239 INFO L225 Difference]: With dead ends: 304860 [2024-10-24 01:44:09,240 INFO L226 Difference]: Without dead ends: 198283 [2024-10-24 01:44:09,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:09,337 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 207 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 577 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 [2024-10-24 01:44:09,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 577 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198283 states. [2024-10-24 01:44:11,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198283 to 197880. [2024-10-24 01:44:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197880 states, 197879 states have (on average 1.404130807210467) internal successors, (277848), 197879 states have internal predecessors, (277848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:12,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197880 states to 197880 states and 277848 transitions. [2024-10-24 01:44:12,194 INFO L78 Accepts]: Start accepts. Automaton has 197880 states and 277848 transitions. Word has length 85 [2024-10-24 01:44:12,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:12,194 INFO L471 AbstractCegarLoop]: Abstraction has 197880 states and 277848 transitions. [2024-10-24 01:44:12,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:12,194 INFO L276 IsEmpty]: Start isEmpty. Operand 197880 states and 277848 transitions. [2024-10-24 01:44:12,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:44:12,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:12,206 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:12,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:44:12,206 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:12,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:12,207 INFO L85 PathProgramCache]: Analyzing trace with hash 478289799, now seen corresponding path program 1 times [2024-10-24 01:44:12,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:12,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544183623] [2024-10-24 01:44:12,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:12,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:12,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:12,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544183623] [2024-10-24 01:44:12,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544183623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:12,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:12,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:12,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397762545] [2024-10-24 01:44:12,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:12,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:12,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:12,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:12,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:12,992 INFO L87 Difference]: Start difference. First operand 197880 states and 277848 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) [2024-10-24 01:44:14,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:14,235 INFO L93 Difference]: Finished difference Result 383534 states and 541928 transitions. [2024-10-24 01:44:14,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:44:14,235 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 [2024-10-24 01:44:14,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:14,820 INFO L225 Difference]: With dead ends: 383534 [2024-10-24 01:44:14,821 INFO L226 Difference]: Without dead ends: 333231 [2024-10-24 01:44:14,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:44:14,967 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1732 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:14,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 1832 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:44:16,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333231 states. [2024-10-24 01:44:18,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333231 to 226202. [2024-10-24 01:44:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226202 states, 226201 states have (on average 1.4060503711301011) internal successors, (318050), 226201 states have internal predecessors, (318050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:20,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226202 states to 226202 states and 318050 transitions. [2024-10-24 01:44:20,316 INFO L78 Accepts]: Start accepts. Automaton has 226202 states and 318050 transitions. Word has length 85 [2024-10-24 01:44:20,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:20,316 INFO L471 AbstractCegarLoop]: Abstraction has 226202 states and 318050 transitions. [2024-10-24 01:44:20,317 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) [2024-10-24 01:44:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 226202 states and 318050 transitions. [2024-10-24 01:44:20,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:44:20,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:20,330 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:20,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:44:20,330 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:20,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:20,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1379291066, now seen corresponding path program 1 times [2024-10-24 01:44:20,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:20,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151448917] [2024-10-24 01:44:20,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:20,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:20,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:20,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151448917] [2024-10-24 01:44:20,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151448917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:20,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:20,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:20,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58391831] [2024-10-24 01:44:20,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:20,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:20,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:20,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:20,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:20,505 INFO L87 Difference]: Start difference. First operand 226202 states and 318050 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) [2024-10-24 01:44:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:21,700 INFO L93 Difference]: Finished difference Result 398287 states and 562039 transitions. [2024-10-24 01:44:21,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:44:21,701 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 [2024-10-24 01:44:21,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:23,074 INFO L225 Difference]: With dead ends: 398287 [2024-10-24 01:44:23,075 INFO L226 Difference]: Without dead ends: 365516 [2024-10-24 01:44:23,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:44:23,163 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 1847 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1847 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:23,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1847 Valid, 1880 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:44:23,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365516 states. [2024-10-24 01:44:26,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365516 to 242731. [2024-10-24 01:44:26,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242731 states, 242730 states have (on average 1.407428006426894) internal successors, (341625), 242730 states have internal predecessors, (341625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:27,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242731 states to 242731 states and 341625 transitions. [2024-10-24 01:44:27,412 INFO L78 Accepts]: Start accepts. Automaton has 242731 states and 341625 transitions. Word has length 85 [2024-10-24 01:44:27,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:27,413 INFO L471 AbstractCegarLoop]: Abstraction has 242731 states and 341625 transitions. [2024-10-24 01:44:27,413 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) [2024-10-24 01:44:27,413 INFO L276 IsEmpty]: Start isEmpty. Operand 242731 states and 341625 transitions. [2024-10-24 01:44:27,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:44:27,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:27,425 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:27,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:44:27,425 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:27,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:27,426 INFO L85 PathProgramCache]: Analyzing trace with hash -2093367941, now seen corresponding path program 1 times [2024-10-24 01:44:27,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:27,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752467246] [2024-10-24 01:44:27,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:27,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:27,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:27,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:27,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752467246] [2024-10-24 01:44:27,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752467246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:27,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:27,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:27,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377183849] [2024-10-24 01:44:27,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:27,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:27,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:27,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:27,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:27,591 INFO L87 Difference]: Start difference. First operand 242731 states and 341625 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)