./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+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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+lhb-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 f4332eab059a2e63fe2129905a86c0f1576ab7a248b3300f50ebbc0c52549386 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:51:32,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:51:32,639 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:51:32,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:51:32,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:51:32,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:51:32,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:51:32,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:51:32,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:51:32,677 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:51:32,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:51:32,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:51:32,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:51:32,679 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:51:32,679 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:51:32,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:51:32,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:51:32,680 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:51:32,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:51:32,681 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:51:32,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:51:32,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:51:32,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:51:32,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:51:32,683 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:51:32,683 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:51:32,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:51:32,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:51:32,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:51:32,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:51:32,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:51:32,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:51:32,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:51:32,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:51:32,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:51:32,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:51:32,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:51:32,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:51:32,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:51:32,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:51:32,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:51:32,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:51:32,689 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4332eab059a2e63fe2129905a86c0f1576ab7a248b3300f50ebbc0c52549386 [2024-10-14 03:51:32,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:51:32,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:51:32,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:51:32,978 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:51:32,978 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:51:32,979 INFO L431 ainManager$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+lhb-reducer.c [2024-10-14 03:51:34,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:51:35,051 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:51:35,052 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+lhb-reducer.c [2024-10-14 03:51:35,111 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04aeb68da/24d17b55c9ce4d3ebc32e7cdce0f57e5/FLAG39c3a0efa [2024-10-14 03:51:35,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04aeb68da/24d17b55c9ce4d3ebc32e7cdce0f57e5 [2024-10-14 03:51:35,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:51:35,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:51:35,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:51:35,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:51:35,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:51:35,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:51:35" (1/1) ... [2024-10-14 03:51:35,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e731954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:35, skipping insertion in model container [2024-10-14 03:51:35,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:51:35" (1/1) ... [2024-10-14 03:51:35,776 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:51:36,245 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+lhb-reducer.c[20004,20017] [2024-10-14 03:51:37,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:51:37,494 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:51:37,586 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+lhb-reducer.c[20004,20017] [2024-10-14 03:51:38,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:51:38,581 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:51:38,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38 WrapperNode [2024-10-14 03:51:38,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:51:38,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:51:38,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:51:38,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:51:38,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:38,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,099 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21783 [2024-10-14 03:51:39,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:51:39,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:51:39,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:51:39,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:51:39,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,414 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]. [2024-10-14 03:51:39,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:51:39,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:51:39,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:51:39,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:51:39,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (1/1) ... [2024-10-14 03:51:39,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:51:39,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:51:40,013 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) [2024-10-14 03:51:40,019 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 [2024-10-14 03:51:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:51:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:51:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:51:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:51:40,686 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:51:40,689 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:51:48,266 INFO L? ?]: Removed 3503 outVars from TransFormulas that were not future-live. [2024-10-14 03:51:48,267 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:51:48,438 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:51:48,438 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:51:48,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:51:48 BoogieIcfgContainer [2024-10-14 03:51:48,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:51:48,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:51:48,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:51:48,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:51:48,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:51:35" (1/3) ... [2024-10-14 03:51:48,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760fdc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:51:48, skipping insertion in model container [2024-10-14 03:51:48,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:38" (2/3) ... [2024-10-14 03:51:48,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760fdc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:51:48, skipping insertion in model container [2024-10-14 03:51:48,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:51:48" (3/3) ... [2024-10-14 03:51:48,447 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-10-14 03:51:48,463 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:51:48,463 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:51:48,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:51:48,604 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;@3e7e5a45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:51:48,605 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:51:48,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 2873 states, 2871 states have (on average 1.907697666318356) internal successors, (5477), 2872 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 03:51:48,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:48,656 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] [2024-10-14 03:51:48,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:48,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:48,662 INFO L85 PathProgramCache]: Analyzing trace with hash -924201457, now seen corresponding path program 1 times [2024-10-14 03:51:48,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:48,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402144117] [2024-10-14 03:51:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:48,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:49,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:49,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:49,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402144117] [2024-10-14 03:51:49,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402144117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:49,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:49,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:49,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001058170] [2024-10-14 03:51:49,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:49,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:49,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:49,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:49,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:49,759 INFO L87 Difference]: Start difference. First operand has 2873 states, 2871 states have (on average 1.907697666318356) internal successors, (5477), 2872 states have internal predecessors, (5477), 0 states have call successors, (0), 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 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:51,601 INFO L93 Difference]: Finished difference Result 4235 states and 7963 transitions. [2024-10-14 03:51:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:51,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-10-14 03:51:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:51,638 INFO L225 Difference]: With dead ends: 4235 [2024-10-14 03:51:51,638 INFO L226 Difference]: Without dead ends: 2291 [2024-10-14 03:51:51,651 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 [2024-10-14 03:51:51,656 INFO L432 NwaCegarLoop]: 2660 mSDtfsCounter, 12354 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12354 SdHoareTripleChecker+Valid, 2929 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:51,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12354 Valid, 2929 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 03:51:51,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2024-10-14 03:51:51,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2289. [2024-10-14 03:51:51,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 2288 states have (on average 1.2963286713286712) internal successors, (2966), 2288 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:51,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 2966 transitions. [2024-10-14 03:51:51,795 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 2966 transitions. Word has length 78 [2024-10-14 03:51:51,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:51,796 INFO L471 AbstractCegarLoop]: Abstraction has 2289 states and 2966 transitions. [2024-10-14 03:51:51,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:51,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 2966 transitions. [2024-10-14 03:51:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-14 03:51:51,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:51,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:51,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:51:51,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:51,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:51,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1301065873, now seen corresponding path program 1 times [2024-10-14 03:51:51,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:51,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412462088] [2024-10-14 03:51:51,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:51,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:52,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:52,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412462088] [2024-10-14 03:51:52,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412462088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:52,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:52,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:52,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57433602] [2024-10-14 03:51:52,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:52,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:52,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:52,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:52,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:52,062 INFO L87 Difference]: Start difference. First operand 2289 states and 2966 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:52,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:52,190 INFO L93 Difference]: Finished difference Result 3729 states and 4916 transitions. [2024-10-14 03:51:52,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:52,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-14 03:51:52,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:52,204 INFO L225 Difference]: With dead ends: 3729 [2024-10-14 03:51:52,204 INFO L226 Difference]: Without dead ends: 3320 [2024-10-14 03:51:52,207 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 [2024-10-14 03:51:52,210 INFO L432 NwaCegarLoop]: 3654 mSDtfsCounter, 2332 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 5247 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:52,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 5247 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:51:52,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2024-10-14 03:51:52,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3317. [2024-10-14 03:51:52,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3317 states, 3316 states have (on average 1.2913148371531966) internal successors, (4282), 3316 states have internal predecessors, (4282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:52,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3317 states to 3317 states and 4282 transitions. [2024-10-14 03:51:52,290 INFO L78 Accepts]: Start accepts. Automaton has 3317 states and 4282 transitions. Word has length 79 [2024-10-14 03:51:52,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:52,292 INFO L471 AbstractCegarLoop]: Abstraction has 3317 states and 4282 transitions. [2024-10-14 03:51:52,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:52,293 INFO L276 IsEmpty]: Start isEmpty. Operand 3317 states and 4282 transitions. [2024-10-14 03:51:52,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-14 03:51:52,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:52,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:52,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:51:52,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:52,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:52,308 INFO L85 PathProgramCache]: Analyzing trace with hash -782671945, now seen corresponding path program 1 times [2024-10-14 03:51:52,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:52,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035090842] [2024-10-14 03:51:52,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:52,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:52,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:52,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035090842] [2024-10-14 03:51:52,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035090842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:52,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:52,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:52,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116985696] [2024-10-14 03:51:52,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:52,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:52,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:52,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:52,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:52,519 INFO L87 Difference]: Start difference. First operand 3317 states and 4282 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:52,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:52,678 INFO L93 Difference]: Finished difference Result 4530 states and 6088 transitions. [2024-10-14 03:51:52,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:52,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-14 03:51:52,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:52,693 INFO L225 Difference]: With dead ends: 4530 [2024-10-14 03:51:52,693 INFO L226 Difference]: Without dead ends: 3892 [2024-10-14 03:51:52,695 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 [2024-10-14 03:51:52,696 INFO L432 NwaCegarLoop]: 2774 mSDtfsCounter, 1322 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:52,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 4386 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:51:52,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2024-10-14 03:51:52,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 3890. [2024-10-14 03:51:52,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3889 states have (on average 1.3144767292363075) internal successors, (5112), 3889 states have internal predecessors, (5112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:52,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 5112 transitions. [2024-10-14 03:51:52,776 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 5112 transitions. Word has length 79 [2024-10-14 03:51:52,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:52,777 INFO L471 AbstractCegarLoop]: Abstraction has 3890 states and 5112 transitions. [2024-10-14 03:51:52,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:52,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 5112 transitions. [2024-10-14 03:51:52,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-14 03:51:52,786 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:52,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:52,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:51:52,787 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:52,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:52,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1840010013, now seen corresponding path program 1 times [2024-10-14 03:51:52,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:52,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758283155] [2024-10-14 03:51:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:52,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:52,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:52,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758283155] [2024-10-14 03:51:52,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758283155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:52,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:52,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:52,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123475535] [2024-10-14 03:51:52,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:52,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:52,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:52,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:52,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:52,956 INFO L87 Difference]: Start difference. First operand 3890 states and 5112 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:53,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:53,230 INFO L93 Difference]: Finished difference Result 5856 states and 7976 transitions. [2024-10-14 03:51:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:53,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-14 03:51:53,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:53,248 INFO L225 Difference]: With dead ends: 5856 [2024-10-14 03:51:53,249 INFO L226 Difference]: Without dead ends: 5008 [2024-10-14 03:51:53,254 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 [2024-10-14 03:51:53,255 INFO L432 NwaCegarLoop]: 2769 mSDtfsCounter, 1248 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:53,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 4367 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:53,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2024-10-14 03:51:53,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 5006. [2024-10-14 03:51:53,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5006 states, 5005 states have (on average 1.335064935064935) internal successors, (6682), 5005 states have internal predecessors, (6682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:53,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 6682 transitions. [2024-10-14 03:51:53,354 INFO L78 Accepts]: Start accepts. Automaton has 5006 states and 6682 transitions. Word has length 79 [2024-10-14 03:51:53,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:53,355 INFO L471 AbstractCegarLoop]: Abstraction has 5006 states and 6682 transitions. [2024-10-14 03:51:53,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:53,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5006 states and 6682 transitions. [2024-10-14 03:51:53,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-14 03:51:53,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:53,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:53,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:51:53,364 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:53,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1469587710, now seen corresponding path program 1 times [2024-10-14 03:51:53,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:53,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013170174] [2024-10-14 03:51:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:53,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:53,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:53,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013170174] [2024-10-14 03:51:53,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013170174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:53,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:53,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:53,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506133801] [2024-10-14 03:51:53,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:53,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:53,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:53,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:53,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:53,720 INFO L87 Difference]: Start difference. First operand 5006 states and 6682 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:54,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:54,764 INFO L93 Difference]: Finished difference Result 10069 states and 13840 transitions. [2024-10-14 03:51:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:54,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-14 03:51:54,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:54,783 INFO L225 Difference]: With dead ends: 10069 [2024-10-14 03:51:54,784 INFO L226 Difference]: Without dead ends: 5937 [2024-10-14 03:51:54,791 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 [2024-10-14 03:51:54,794 INFO L432 NwaCegarLoop]: 1201 mSDtfsCounter, 6501 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6501 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:54,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6501 Valid, 1417 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:51:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5937 states. [2024-10-14 03:51:54,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5937 to 5935. [2024-10-14 03:51:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 1.3816986855409505) internal successors, (8199), 5934 states have internal predecessors, (8199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:54,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 8199 transitions. [2024-10-14 03:51:54,925 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 8199 transitions. Word has length 79 [2024-10-14 03:51:54,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:54,926 INFO L471 AbstractCegarLoop]: Abstraction has 5935 states and 8199 transitions. [2024-10-14 03:51:54,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:54,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 8199 transitions. [2024-10-14 03:51:54,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 03:51:54,935 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:54,935 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] [2024-10-14 03:51:54,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:51:54,935 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:54,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:54,936 INFO L85 PathProgramCache]: Analyzing trace with hash -961390150, now seen corresponding path program 1 times [2024-10-14 03:51:54,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:54,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710352982] [2024-10-14 03:51:54,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:54,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:55,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:55,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710352982] [2024-10-14 03:51:55,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710352982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:55,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:55,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:55,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766879759] [2024-10-14 03:51:55,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:55,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:55,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:55,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:55,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:55,077 INFO L87 Difference]: Start difference. First operand 5935 states and 8199 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2024-10-14 03:51:55,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:55,161 INFO L93 Difference]: Finished difference Result 14238 states and 20013 transitions. [2024-10-14 03:51:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:55,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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 [2024-10-14 03:51:55,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:55,191 INFO L225 Difference]: With dead ends: 14238 [2024-10-14 03:51:55,191 INFO L226 Difference]: Without dead ends: 10049 [2024-10-14 03:51:55,198 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 [2024-10-14 03:51:55,199 INFO L432 NwaCegarLoop]: 2675 mSDtfsCounter, 1713 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 3912 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 [2024-10-14 03:51:55,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 3912 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:55,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10049 states. [2024-10-14 03:51:55,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10049 to 10035. [2024-10-14 03:51:55,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10035 states, 10034 states have (on average 1.3841937412796492) internal successors, (13889), 10034 states have internal predecessors, (13889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:55,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10035 states to 10035 states and 13889 transitions. [2024-10-14 03:51:55,357 INFO L78 Accepts]: Start accepts. Automaton has 10035 states and 13889 transitions. Word has length 80 [2024-10-14 03:51:55,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:55,358 INFO L471 AbstractCegarLoop]: Abstraction has 10035 states and 13889 transitions. [2024-10-14 03:51:55,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 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) [2024-10-14 03:51:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 10035 states and 13889 transitions. [2024-10-14 03:51:55,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 03:51:55,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:55,372 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] [2024-10-14 03:51:55,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:51:55,373 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:55,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:55,373 INFO L85 PathProgramCache]: Analyzing trace with hash 473457151, now seen corresponding path program 1 times [2024-10-14 03:51:55,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:55,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498209204] [2024-10-14 03:51:55,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:55,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:55,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:55,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498209204] [2024-10-14 03:51:55,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498209204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:55,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:55,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:55,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581531102] [2024-10-14 03:51:55,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:55,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:55,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:55,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:55,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:55,581 INFO L87 Difference]: Start difference. First operand 10035 states and 13889 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-14 03:51:56,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:56,595 INFO L93 Difference]: Finished difference Result 20208 states and 28251 transitions. [2024-10-14 03:51:56,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:56,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 [2024-10-14 03:51:56,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:56,615 INFO L225 Difference]: With dead ends: 20208 [2024-10-14 03:51:56,616 INFO L226 Difference]: Without dead ends: 11955 [2024-10-14 03:51:56,628 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 [2024-10-14 03:51:56,629 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 5381 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5381 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:56,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5381 Valid, 1119 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:51:56,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11955 states. [2024-10-14 03:51:56,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11955 to 11929. [2024-10-14 03:51:56,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11929 states, 11928 states have (on average 1.3771797451374916) internal successors, (16427), 11928 states have internal predecessors, (16427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:56,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11929 states to 11929 states and 16427 transitions. [2024-10-14 03:51:56,814 INFO L78 Accepts]: Start accepts. Automaton has 11929 states and 16427 transitions. Word has length 80 [2024-10-14 03:51:56,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:56,815 INFO L471 AbstractCegarLoop]: Abstraction has 11929 states and 16427 transitions. [2024-10-14 03:51:56,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-14 03:51:56,815 INFO L276 IsEmpty]: Start isEmpty. Operand 11929 states and 16427 transitions. [2024-10-14 03:51:56,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 03:51:56,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:56,828 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] [2024-10-14 03:51:56,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:51:56,829 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:56,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:56,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1860348150, now seen corresponding path program 1 times [2024-10-14 03:51:56,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:56,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726621504] [2024-10-14 03:51:56,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:56,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:57,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:57,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:57,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726621504] [2024-10-14 03:51:57,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726621504] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:57,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:57,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:57,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717298072] [2024-10-14 03:51:57,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:57,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:57,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:57,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:57,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:57,159 INFO L87 Difference]: Start difference. First operand 11929 states and 16427 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-14 03:51:57,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:57,924 INFO L93 Difference]: Finished difference Result 29977 states and 42078 transitions. [2024-10-14 03:51:57,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:57,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 [2024-10-14 03:51:57,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:57,953 INFO L225 Difference]: With dead ends: 29977 [2024-10-14 03:51:57,954 INFO L226 Difference]: Without dead ends: 18831 [2024-10-14 03:51:57,971 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 [2024-10-14 03:51:57,972 INFO L432 NwaCegarLoop]: 820 mSDtfsCounter, 4604 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4604 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:57,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4604 Valid, 1037 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 03:51:57,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18831 states. [2024-10-14 03:51:58,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18831 to 18829. [2024-10-14 03:51:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18829 states, 18828 states have (on average 1.4027512215848736) internal successors, (26411), 18828 states have internal predecessors, (26411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:58,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18829 states to 18829 states and 26411 transitions. [2024-10-14 03:51:58,267 INFO L78 Accepts]: Start accepts. Automaton has 18829 states and 26411 transitions. Word has length 80 [2024-10-14 03:51:58,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:58,267 INFO L471 AbstractCegarLoop]: Abstraction has 18829 states and 26411 transitions. [2024-10-14 03:51:58,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2024-10-14 03:51:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 18829 states and 26411 transitions. [2024-10-14 03:51:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 03:51:58,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:58,284 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] [2024-10-14 03:51:58,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:51:58,284 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:58,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:58,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2048024899, now seen corresponding path program 1 times [2024-10-14 03:51:58,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:58,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906860075] [2024-10-14 03:51:58,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:58,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:58,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:58,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906860075] [2024-10-14 03:51:58,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906860075] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:58,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:58,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:58,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800016863] [2024-10-14 03:51:58,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:58,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:58,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:58,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:58,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:58,410 INFO L87 Difference]: Start difference. First operand 18829 states and 26411 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-10-14 03:51:58,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:58,560 INFO L93 Difference]: Finished difference Result 41251 states and 58248 transitions. [2024-10-14 03:51:58,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:58,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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 [2024-10-14 03:51:58,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:58,603 INFO L225 Difference]: With dead ends: 41251 [2024-10-14 03:51:58,603 INFO L226 Difference]: Without dead ends: 26202 [2024-10-14 03:51:58,625 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 [2024-10-14 03:51:58,626 INFO L432 NwaCegarLoop]: 1741 mSDtfsCounter, 1083 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:58,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 2669 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:58,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26202 states. [2024-10-14 03:51:58,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26202 to 26128. [2024-10-14 03:51:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26128 states, 26127 states have (on average 1.3844681746851915) internal successors, (36172), 26127 states have internal predecessors, (36172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:58,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26128 states to 26128 states and 36172 transitions. [2024-10-14 03:51:58,994 INFO L78 Accepts]: Start accepts. Automaton has 26128 states and 36172 transitions. Word has length 81 [2024-10-14 03:51:58,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:58,996 INFO L471 AbstractCegarLoop]: Abstraction has 26128 states and 36172 transitions. [2024-10-14 03:51:58,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-10-14 03:51:58,996 INFO L276 IsEmpty]: Start isEmpty. Operand 26128 states and 36172 transitions. [2024-10-14 03:51:59,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 03:51:59,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:59,122 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] [2024-10-14 03:51:59,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:51:59,122 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:59,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:59,127 INFO L85 PathProgramCache]: Analyzing trace with hash -963543678, now seen corresponding path program 1 times [2024-10-14 03:51:59,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:59,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307760501] [2024-10-14 03:51:59,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:59,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:59,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:59,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307760501] [2024-10-14 03:51:59,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307760501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:59,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:59,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:59,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705994128] [2024-10-14 03:51:59,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:59,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:59,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:59,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:59,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:59,337 INFO L87 Difference]: Start difference. First operand 26128 states and 36172 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) [2024-10-14 03:52:00,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:00,120 INFO L93 Difference]: Finished difference Result 60135 states and 83674 transitions. [2024-10-14 03:52:00,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:52:00,120 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 [2024-10-14 03:52:00,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:00,181 INFO L225 Difference]: With dead ends: 60135 [2024-10-14 03:52:00,181 INFO L226 Difference]: Without dead ends: 35279 [2024-10-14 03:52:00,213 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 [2024-10-14 03:52:00,214 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 3916 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3916 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:00,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3916 Valid, 885 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 03:52:00,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35279 states. [2024-10-14 03:52:00,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35279 to 35169. [2024-10-14 03:52:00,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35169 states, 35168 states have (on average 1.3829902183803457) internal successors, (48637), 35168 states have internal predecessors, (48637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35169 states to 35169 states and 48637 transitions. [2024-10-14 03:52:00,755 INFO L78 Accepts]: Start accepts. Automaton has 35169 states and 48637 transitions. Word has length 82 [2024-10-14 03:52:00,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:00,755 INFO L471 AbstractCegarLoop]: Abstraction has 35169 states and 48637 transitions. [2024-10-14 03:52:00,755 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) [2024-10-14 03:52:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 35169 states and 48637 transitions. [2024-10-14 03:52:00,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 03:52:00,781 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:00,782 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] [2024-10-14 03:52:00,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:52:00,783 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:00,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:00,784 INFO L85 PathProgramCache]: Analyzing trace with hash 940732972, now seen corresponding path program 1 times [2024-10-14 03:52:00,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:00,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790157763] [2024-10-14 03:52:00,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:00,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:01,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:01,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:01,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790157763] [2024-10-14 03:52:01,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790157763] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:01,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:01,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:01,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596102393] [2024-10-14 03:52:01,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:01,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:01,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:01,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:01,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:01,040 INFO L87 Difference]: Start difference. First operand 35169 states and 48637 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:02,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:02,293 INFO L93 Difference]: Finished difference Result 75824 states and 105667 transitions. [2024-10-14 03:52:02,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:52:02,294 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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 [2024-10-14 03:52:02,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:02,398 INFO L225 Difference]: With dead ends: 75824 [2024-10-14 03:52:02,399 INFO L226 Difference]: Without dead ends: 58649 [2024-10-14 03:52:02,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:02,437 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 4693 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:02,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4693 Valid, 1721 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 03:52:02,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58649 states. [2024-10-14 03:52:03,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58649 to 35225. [2024-10-14 03:52:03,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35225 states, 35224 states have (on average 1.3828355666590961) internal successors, (48709), 35224 states have internal predecessors, (48709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:03,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35225 states to 35225 states and 48709 transitions. [2024-10-14 03:52:03,227 INFO L78 Accepts]: Start accepts. Automaton has 35225 states and 48709 transitions. Word has length 83 [2024-10-14 03:52:03,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:03,228 INFO L471 AbstractCegarLoop]: Abstraction has 35225 states and 48709 transitions. [2024-10-14 03:52:03,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:03,228 INFO L276 IsEmpty]: Start isEmpty. Operand 35225 states and 48709 transitions. [2024-10-14 03:52:03,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 03:52:03,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:03,251 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] [2024-10-14 03:52:03,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:52:03,251 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:03,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:03,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1898621657, now seen corresponding path program 1 times [2024-10-14 03:52:03,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:03,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984201925] [2024-10-14 03:52:03,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:03,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:03,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:03,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984201925] [2024-10-14 03:52:03,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984201925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:03,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:03,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:03,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749706415] [2024-10-14 03:52:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:03,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:03,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:03,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:03,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:03,540 INFO L87 Difference]: Start difference. First operand 35225 states and 48709 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:04,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:04,848 INFO L93 Difference]: Finished difference Result 83600 states and 116580 transitions. [2024-10-14 03:52:04,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:52:04,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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 [2024-10-14 03:52:04,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:04,958 INFO L225 Difference]: With dead ends: 83600 [2024-10-14 03:52:04,958 INFO L226 Difference]: Without dead ends: 68208 [2024-10-14 03:52:04,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:04,999 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 4917 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4917 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:04,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4917 Valid, 1756 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 03:52:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68208 states. [2024-10-14 03:52:05,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68208 to 35448. [2024-10-14 03:52:05,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35448 states, 35447 states have (on average 1.3828532739018817) internal successors, (49018), 35447 states have internal predecessors, (49018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35448 states to 35448 states and 49018 transitions. [2024-10-14 03:52:05,688 INFO L78 Accepts]: Start accepts. Automaton has 35448 states and 49018 transitions. Word has length 83 [2024-10-14 03:52:05,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:05,688 INFO L471 AbstractCegarLoop]: Abstraction has 35448 states and 49018 transitions. [2024-10-14 03:52:05,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:05,689 INFO L276 IsEmpty]: Start isEmpty. Operand 35448 states and 49018 transitions. [2024-10-14 03:52:05,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 03:52:05,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:05,708 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] [2024-10-14 03:52:05,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:52:05,708 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:05,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:05,709 INFO L85 PathProgramCache]: Analyzing trace with hash -2012790539, now seen corresponding path program 1 times [2024-10-14 03:52:05,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:05,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991803671] [2024-10-14 03:52:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:05,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:05,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:05,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:05,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991803671] [2024-10-14 03:52:05,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991803671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:05,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:05,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:05,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623622648] [2024-10-14 03:52:05,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:05,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:05,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:05,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:05,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:05,968 INFO L87 Difference]: Start difference. First operand 35448 states and 49018 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:07,071 INFO L93 Difference]: Finished difference Result 103184 states and 144921 transitions. [2024-10-14 03:52:07,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:52:07,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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 [2024-10-14 03:52:07,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:07,170 INFO L225 Difference]: With dead ends: 103184 [2024-10-14 03:52:07,170 INFO L226 Difference]: Without dead ends: 89825 [2024-10-14 03:52:07,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:07,211 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 5116 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5116 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:07,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5116 Valid, 1825 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:52:07,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89825 states. [2024-10-14 03:52:07,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89825 to 35584. [2024-10-14 03:52:07,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35584 states, 35583 states have (on average 1.382514121912149) internal successors, (49194), 35583 states have internal predecessors, (49194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:08,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35584 states to 35584 states and 49194 transitions. [2024-10-14 03:52:08,029 INFO L78 Accepts]: Start accepts. Automaton has 35584 states and 49194 transitions. Word has length 83 [2024-10-14 03:52:08,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:08,030 INFO L471 AbstractCegarLoop]: Abstraction has 35584 states and 49194 transitions. [2024-10-14 03:52:08,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 35584 states and 49194 transitions. [2024-10-14 03:52:08,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 03:52:08,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:08,045 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] [2024-10-14 03:52:08,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:52:08,045 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:08,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:08,046 INFO L85 PathProgramCache]: Analyzing trace with hash 598779131, now seen corresponding path program 1 times [2024-10-14 03:52:08,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:08,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416259342] [2024-10-14 03:52:08,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:08,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:08,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:08,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:08,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416259342] [2024-10-14 03:52:08,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416259342] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:08,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:08,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:08,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147240885] [2024-10-14 03:52:08,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:08,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:08,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:08,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:08,276 INFO L87 Difference]: Start difference. First operand 35584 states and 49194 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:09,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:09,557 INFO L93 Difference]: Finished difference Result 99803 states and 139961 transitions. [2024-10-14 03:52:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:52:09,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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 [2024-10-14 03:52:09,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:09,655 INFO L225 Difference]: With dead ends: 99803 [2024-10-14 03:52:09,655 INFO L226 Difference]: Without dead ends: 82671 [2024-10-14 03:52:09,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:09,695 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 5020 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5020 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:09,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5020 Valid, 1797 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:52:09,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82671 states. [2024-10-14 03:52:10,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82671 to 35917. [2024-10-14 03:52:10,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35917 states, 35916 states have (on average 1.3819746074173072) internal successors, (49635), 35916 states have internal predecessors, (49635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35917 states to 35917 states and 49635 transitions. [2024-10-14 03:52:10,673 INFO L78 Accepts]: Start accepts. Automaton has 35917 states and 49635 transitions. Word has length 83 [2024-10-14 03:52:10,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:10,673 INFO L471 AbstractCegarLoop]: Abstraction has 35917 states and 49635 transitions. [2024-10-14 03:52:10,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 35917 states and 49635 transitions. [2024-10-14 03:52:10,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 03:52:10,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:10,697 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] [2024-10-14 03:52:10,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:52:10,697 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:10,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:10,698 INFO L85 PathProgramCache]: Analyzing trace with hash 65724815, now seen corresponding path program 1 times [2024-10-14 03:52:10,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:10,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428287452] [2024-10-14 03:52:10,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:10,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:10,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:10,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:10,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428287452] [2024-10-14 03:52:10,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428287452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:10,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:10,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:10,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282912840] [2024-10-14 03:52:10,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:10,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:10,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:10,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:10,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:10,983 INFO L87 Difference]: Start difference. First operand 35917 states and 49635 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:12,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:12,292 INFO L93 Difference]: Finished difference Result 92415 states and 129231 transitions. [2024-10-14 03:52:12,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:52:12,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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 [2024-10-14 03:52:12,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:12,536 INFO L225 Difference]: With dead ends: 92415 [2024-10-14 03:52:12,536 INFO L226 Difference]: Without dead ends: 75931 [2024-10-14 03:52:12,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:12,560 INFO L432 NwaCegarLoop]: 688 mSDtfsCounter, 4975 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4975 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:12,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4975 Valid, 1772 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 03:52:12,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75931 states. [2024-10-14 03:52:13,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75931 to 36493. [2024-10-14 03:52:13,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36493 states, 36492 states have (on average 1.3812616463882494) internal successors, (50405), 36492 states have internal predecessors, (50405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:13,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36493 states to 36493 states and 50405 transitions. [2024-10-14 03:52:13,367 INFO L78 Accepts]: Start accepts. Automaton has 36493 states and 50405 transitions. Word has length 83 [2024-10-14 03:52:13,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:13,367 INFO L471 AbstractCegarLoop]: Abstraction has 36493 states and 50405 transitions. [2024-10-14 03:52:13,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2024-10-14 03:52:13,368 INFO L276 IsEmpty]: Start isEmpty. Operand 36493 states and 50405 transitions. [2024-10-14 03:52:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:52:13,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:13,386 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] [2024-10-14 03:52:13,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:52:13,386 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:13,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:13,387 INFO L85 PathProgramCache]: Analyzing trace with hash 243433032, now seen corresponding path program 1 times [2024-10-14 03:52:13,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:13,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262366932] [2024-10-14 03:52:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:13,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:14,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:14,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:14,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262366932] [2024-10-14 03:52:14,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262366932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:14,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:14,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:14,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740700896] [2024-10-14 03:52:14,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:14,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:52:14,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:14,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:52:14,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:52:14,166 INFO L87 Difference]: Start difference. First operand 36493 states and 50405 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:15,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:15,517 INFO L93 Difference]: Finished difference Result 78943 states and 110610 transitions. [2024-10-14 03:52:15,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:52:15,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-14 03:52:15,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:15,581 INFO L225 Difference]: With dead ends: 78943 [2024-10-14 03:52:15,581 INFO L226 Difference]: Without dead ends: 55720 [2024-10-14 03:52:15,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-10-14 03:52:15,603 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 2611 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:15,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2611 Valid, 3060 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 03:52:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55720 states. [2024-10-14 03:52:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55720 to 36425. [2024-10-14 03:52:16,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36425 states, 36424 states have (on average 1.3809850647924446) internal successors, (50301), 36424 states have internal predecessors, (50301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:16,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36425 states to 36425 states and 50301 transitions. [2024-10-14 03:52:16,150 INFO L78 Accepts]: Start accepts. Automaton has 36425 states and 50301 transitions. Word has length 84 [2024-10-14 03:52:16,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:16,151 INFO L471 AbstractCegarLoop]: Abstraction has 36425 states and 50301 transitions. [2024-10-14 03:52:16,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:16,151 INFO L276 IsEmpty]: Start isEmpty. Operand 36425 states and 50301 transitions. [2024-10-14 03:52:16,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:52:16,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:16,293 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] [2024-10-14 03:52:16,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:52:16,293 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:16,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:16,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1447975722, now seen corresponding path program 1 times [2024-10-14 03:52:16,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:16,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037890930] [2024-10-14 03:52:16,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:16,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:16,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:16,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:16,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037890930] [2024-10-14 03:52:16,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037890930] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:16,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:16,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:16,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848670027] [2024-10-14 03:52:16,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:16,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:16,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:16,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:16,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:16,565 INFO L87 Difference]: Start difference. First operand 36425 states and 50301 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:17,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:17,719 INFO L93 Difference]: Finished difference Result 91475 states and 128031 transitions. [2024-10-14 03:52:17,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:52:17,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 [2024-10-14 03:52:17,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:17,789 INFO L225 Difference]: With dead ends: 91475 [2024-10-14 03:52:17,790 INFO L226 Difference]: Without dead ends: 75863 [2024-10-14 03:52:17,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:17,808 INFO L432 NwaCegarLoop]: 688 mSDtfsCounter, 4968 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4968 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:17,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4968 Valid, 1772 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:52:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75863 states. [2024-10-14 03:52:18,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75863 to 36545. [2024-10-14 03:52:18,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36545 states, 36544 states have (on average 1.3808285901926445) internal successors, (50461), 36544 states have internal predecessors, (50461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:18,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36545 states to 36545 states and 50461 transitions. [2024-10-14 03:52:18,596 INFO L78 Accepts]: Start accepts. Automaton has 36545 states and 50461 transitions. Word has length 84 [2024-10-14 03:52:18,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:18,596 INFO L471 AbstractCegarLoop]: Abstraction has 36545 states and 50461 transitions. [2024-10-14 03:52:18,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:18,596 INFO L276 IsEmpty]: Start isEmpty. Operand 36545 states and 50461 transitions. [2024-10-14 03:52:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:52:18,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:18,609 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] [2024-10-14 03:52:18,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:52:18,610 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:18,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:18,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1846361066, now seen corresponding path program 1 times [2024-10-14 03:52:18,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:18,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981741121] [2024-10-14 03:52:18,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:18,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:18,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:18,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:18,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981741121] [2024-10-14 03:52:18,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981741121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:18,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:18,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:18,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924535880] [2024-10-14 03:52:18,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:18,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:18,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:18,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:18,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:18,830 INFO L87 Difference]: Start difference. First operand 36545 states and 50461 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:20,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:20,010 INFO L93 Difference]: Finished difference Result 85049 states and 118501 transitions. [2024-10-14 03:52:20,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:52:20,011 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 [2024-10-14 03:52:20,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:20,089 INFO L225 Difference]: With dead ends: 85049 [2024-10-14 03:52:20,090 INFO L226 Difference]: Without dead ends: 69621 [2024-10-14 03:52:20,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:20,112 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 4909 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4909 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:20,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4909 Valid, 1756 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:52:20,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69621 states. [2024-10-14 03:52:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69621 to 36835. [2024-10-14 03:52:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36835 states, 36834 states have (on average 1.3809252321224956) internal successors, (50865), 36834 states have internal predecessors, (50865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36835 states to 36835 states and 50865 transitions. [2024-10-14 03:52:20,913 INFO L78 Accepts]: Start accepts. Automaton has 36835 states and 50865 transitions. Word has length 84 [2024-10-14 03:52:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:20,913 INFO L471 AbstractCegarLoop]: Abstraction has 36835 states and 50865 transitions. [2024-10-14 03:52:20,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:20,913 INFO L276 IsEmpty]: Start isEmpty. Operand 36835 states and 50865 transitions. [2024-10-14 03:52:20,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:52:20,928 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:20,928 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] [2024-10-14 03:52:20,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:52:20,929 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:20,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:20,929 INFO L85 PathProgramCache]: Analyzing trace with hash -860991493, now seen corresponding path program 1 times [2024-10-14 03:52:20,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:20,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710040518] [2024-10-14 03:52:20,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:20,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:21,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:21,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710040518] [2024-10-14 03:52:21,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710040518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:21,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:21,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:21,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361915180] [2024-10-14 03:52:21,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:21,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:52:21,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:21,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:52:21,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:52:21,504 INFO L87 Difference]: Start difference. First operand 36835 states and 50865 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:22,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:22,644 INFO L93 Difference]: Finished difference Result 79280 states and 111128 transitions. [2024-10-14 03:52:22,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:52:22,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-14 03:52:22,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:22,709 INFO L225 Difference]: With dead ends: 79280 [2024-10-14 03:52:22,709 INFO L226 Difference]: Without dead ends: 56021 [2024-10-14 03:52:22,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-14 03:52:22,740 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 4425 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4425 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:22,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4425 Valid, 2848 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:52:22,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56021 states. [2024-10-14 03:52:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56021 to 36749. [2024-10-14 03:52:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36749 states, 36748 states have (on average 1.3807826276259934) internal successors, (50741), 36748 states have internal predecessors, (50741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36749 states to 36749 states and 50741 transitions. [2024-10-14 03:52:23,369 INFO L78 Accepts]: Start accepts. Automaton has 36749 states and 50741 transitions. Word has length 84 [2024-10-14 03:52:23,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:23,370 INFO L471 AbstractCegarLoop]: Abstraction has 36749 states and 50741 transitions. [2024-10-14 03:52:23,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 36749 states and 50741 transitions. [2024-10-14 03:52:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:52:23,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:23,386 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] [2024-10-14 03:52:23,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:52:23,386 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:23,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:23,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1078841363, now seen corresponding path program 1 times [2024-10-14 03:52:23,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:23,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416820956] [2024-10-14 03:52:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:23,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:23,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:23,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:23,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416820956] [2024-10-14 03:52:23,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416820956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:23,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:23,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:23,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590698963] [2024-10-14 03:52:23,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:23,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:23,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:23,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:23,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:23,744 INFO L87 Difference]: Start difference. First operand 36749 states and 50741 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:24,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:24,771 INFO L93 Difference]: Finished difference Result 99306 states and 139362 transitions. [2024-10-14 03:52:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:52:24,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 [2024-10-14 03:52:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:24,872 INFO L225 Difference]: With dead ends: 99306 [2024-10-14 03:52:24,872 INFO L226 Difference]: Without dead ends: 83598 [2024-10-14 03:52:24,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:24,911 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 5009 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:24,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 1797 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 03:52:24,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83598 states. [2024-10-14 03:52:25,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83598 to 36824. [2024-10-14 03:52:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36824 states, 36823 states have (on average 1.3806859843032888) internal successors, (50841), 36823 states have internal predecessors, (50841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36824 states to 36824 states and 50841 transitions. [2024-10-14 03:52:25,807 INFO L78 Accepts]: Start accepts. Automaton has 36824 states and 50841 transitions. Word has length 84 [2024-10-14 03:52:25,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:25,807 INFO L471 AbstractCegarLoop]: Abstraction has 36824 states and 50841 transitions. [2024-10-14 03:52:25,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:25,807 INFO L276 IsEmpty]: Start isEmpty. Operand 36824 states and 50841 transitions. [2024-10-14 03:52:25,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:52:25,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:25,824 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] [2024-10-14 03:52:25,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:52:25,824 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:25,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:25,825 INFO L85 PathProgramCache]: Analyzing trace with hash -751519819, now seen corresponding path program 1 times [2024-10-14 03:52:25,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:25,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78829106] [2024-10-14 03:52:25,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:25,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:26,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:26,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78829106] [2024-10-14 03:52:26,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78829106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:26,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:26,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:26,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283925910] [2024-10-14 03:52:26,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:26,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:52:26,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:26,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:52:26,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:52:26,422 INFO L87 Difference]: Start difference. First operand 36824 states and 50841 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:27,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:27,670 INFO L93 Difference]: Finished difference Result 75124 states and 105149 transitions. [2024-10-14 03:52:27,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:52:27,671 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-14 03:52:27,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:27,731 INFO L225 Difference]: With dead ends: 75124 [2024-10-14 03:52:27,731 INFO L226 Difference]: Without dead ends: 50983 [2024-10-14 03:52:27,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-14 03:52:27,760 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 3738 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3738 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:27,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3738 Valid, 3261 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 03:52:27,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50983 states. [2024-10-14 03:52:28,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50983 to 36282. [2024-10-14 03:52:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36282 states, 36281 states have (on average 1.3809983186791985) internal successors, (50104), 36281 states have internal predecessors, (50104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36282 states to 36282 states and 50104 transitions. [2024-10-14 03:52:28,344 INFO L78 Accepts]: Start accepts. Automaton has 36282 states and 50104 transitions. Word has length 84 [2024-10-14 03:52:28,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:28,344 INFO L471 AbstractCegarLoop]: Abstraction has 36282 states and 50104 transitions. [2024-10-14 03:52:28,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:28,344 INFO L276 IsEmpty]: Start isEmpty. Operand 36282 states and 50104 transitions. [2024-10-14 03:52:28,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:52:28,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:28,359 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] [2024-10-14 03:52:28,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 03:52:28,359 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:28,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash 285861585, now seen corresponding path program 1 times [2024-10-14 03:52:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:28,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440689117] [2024-10-14 03:52:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:28,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:28,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440689117] [2024-10-14 03:52:28,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440689117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:28,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:28,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:28,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980228470] [2024-10-14 03:52:28,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:28,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:28,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:28,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:28,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:28,552 INFO L87 Difference]: Start difference. First operand 36282 states and 50104 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:29,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:29,785 INFO L93 Difference]: Finished difference Result 84536 states and 117810 transitions. [2024-10-14 03:52:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:52:29,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 [2024-10-14 03:52:29,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:29,895 INFO L225 Difference]: With dead ends: 84536 [2024-10-14 03:52:29,896 INFO L226 Difference]: Without dead ends: 69108 [2024-10-14 03:52:29,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:29,943 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 4895 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4895 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:29,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4895 Valid, 1756 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:52:29,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69108 states. [2024-10-14 03:52:30,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69108 to 36578. [2024-10-14 03:52:30,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36578 states, 36577 states have (on average 1.381141154277278) internal successors, (50518), 36577 states have internal predecessors, (50518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:31,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36578 states to 36578 states and 50518 transitions. [2024-10-14 03:52:31,005 INFO L78 Accepts]: Start accepts. Automaton has 36578 states and 50518 transitions. Word has length 84 [2024-10-14 03:52:31,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:31,005 INFO L471 AbstractCegarLoop]: Abstraction has 36578 states and 50518 transitions. [2024-10-14 03:52:31,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 36578 states and 50518 transitions. [2024-10-14 03:52:31,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:52:31,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:31,023 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] [2024-10-14 03:52:31,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 03:52:31,023 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:31,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:31,024 INFO L85 PathProgramCache]: Analyzing trace with hash 684246929, now seen corresponding path program 1 times [2024-10-14 03:52:31,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:31,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685567736] [2024-10-14 03:52:31,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:31,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:31,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:31,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:31,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685567736] [2024-10-14 03:52:31,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685567736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:31,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:31,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:31,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680704370] [2024-10-14 03:52:31,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:31,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:52:31,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:31,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:52:31,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:52:31,421 INFO L87 Difference]: Start difference. First operand 36578 states and 50518 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:32,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:32,868 INFO L93 Difference]: Finished difference Result 78115 states and 109390 transitions. [2024-10-14 03:52:32,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:52:32,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-14 03:52:32,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:32,934 INFO L225 Difference]: With dead ends: 78115 [2024-10-14 03:52:32,934 INFO L226 Difference]: Without dead ends: 54980 [2024-10-14 03:52:32,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-14 03:52:32,963 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 4317 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:32,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4317 Valid, 2983 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 03:52:32,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54980 states. [2024-10-14 03:52:33,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54980 to 36554. [2024-10-14 03:52:33,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36554 states, 36553 states have (on average 1.3807348234071075) internal successors, (50470), 36553 states have internal predecessors, (50470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36554 states to 36554 states and 50470 transitions. [2024-10-14 03:52:33,683 INFO L78 Accepts]: Start accepts. Automaton has 36554 states and 50470 transitions. Word has length 84 [2024-10-14 03:52:33,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:33,684 INFO L471 AbstractCegarLoop]: Abstraction has 36554 states and 50470 transitions. [2024-10-14 03:52:33,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 36554 states and 50470 transitions. [2024-10-14 03:52:33,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:52:33,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:33,700 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] [2024-10-14 03:52:33,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 03:52:33,700 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:33,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:33,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1953439629, now seen corresponding path program 1 times [2024-10-14 03:52:33,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:33,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473107473] [2024-10-14 03:52:33,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:33,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:34,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:34,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:34,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473107473] [2024-10-14 03:52:34,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473107473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:34,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:34,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:52:34,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108190876] [2024-10-14 03:52:34,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:34,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:34,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:34,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:34,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:34,066 INFO L87 Difference]: Start difference. First operand 36554 states and 50470 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:35,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:35,179 INFO L93 Difference]: Finished difference Result 77960 states and 109308 transitions. [2024-10-14 03:52:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:35,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 [2024-10-14 03:52:35,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:35,240 INFO L225 Difference]: With dead ends: 77960 [2024-10-14 03:52:35,240 INFO L226 Difference]: Without dead ends: 51759 [2024-10-14 03:52:35,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:35,268 INFO L432 NwaCegarLoop]: 657 mSDtfsCounter, 3392 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:35,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 2306 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:52:35,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51759 states. [2024-10-14 03:52:35,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51759 to 35213. [2024-10-14 03:52:36,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35213 states, 35212 states have (on average 1.380239691014427) internal successors, (48601), 35212 states have internal predecessors, (48601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:36,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35213 states to 35213 states and 48601 transitions. [2024-10-14 03:52:36,064 INFO L78 Accepts]: Start accepts. Automaton has 35213 states and 48601 transitions. Word has length 84 [2024-10-14 03:52:36,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:36,065 INFO L471 AbstractCegarLoop]: Abstraction has 35213 states and 48601 transitions. [2024-10-14 03:52:36,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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) [2024-10-14 03:52:36,065 INFO L276 IsEmpty]: Start isEmpty. Operand 35213 states and 48601 transitions. [2024-10-14 03:52:36,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:36,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:36,081 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] [2024-10-14 03:52:36,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 03:52:36,082 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:36,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:36,082 INFO L85 PathProgramCache]: Analyzing trace with hash 754780750, now seen corresponding path program 1 times [2024-10-14 03:52:36,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:36,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615075334] [2024-10-14 03:52:36,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:36,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:36,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:36,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615075334] [2024-10-14 03:52:36,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615075334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:36,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:36,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:36,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716888495] [2024-10-14 03:52:36,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:36,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:52:36,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:36,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:52:36,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:52:36,489 INFO L87 Difference]: Start difference. First operand 35213 states and 48601 transitions. Second operand has 8 states, 8 states have (on average 10.625) 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) [2024-10-14 03:52:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:37,925 INFO L93 Difference]: Finished difference Result 77702 states and 108893 transitions. [2024-10-14 03:52:37,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:52:37,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) 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 [2024-10-14 03:52:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:37,992 INFO L225 Difference]: With dead ends: 77702 [2024-10-14 03:52:37,992 INFO L226 Difference]: Without dead ends: 53715 [2024-10-14 03:52:38,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:52:38,019 INFO L432 NwaCegarLoop]: 773 mSDtfsCounter, 2845 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2845 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:38,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2845 Valid, 3056 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 03:52:38,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53715 states. [2024-10-14 03:52:38,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53715 to 34742. [2024-10-14 03:52:38,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34742 states, 34741 states have (on average 1.3805302092628307) internal successors, (47961), 34741 states have internal predecessors, (47961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34742 states to 34742 states and 47961 transitions. [2024-10-14 03:52:38,719 INFO L78 Accepts]: Start accepts. Automaton has 34742 states and 47961 transitions. Word has length 85 [2024-10-14 03:52:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:38,720 INFO L471 AbstractCegarLoop]: Abstraction has 34742 states and 47961 transitions. [2024-10-14 03:52:38,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) 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) [2024-10-14 03:52:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 34742 states and 47961 transitions. [2024-10-14 03:52:38,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:38,734 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:38,734 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] [2024-10-14 03:52:38,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 03:52:38,734 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:38,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash 863427170, now seen corresponding path program 1 times [2024-10-14 03:52:38,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:38,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146535173] [2024-10-14 03:52:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:38,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:38,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:39,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:39,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146535173] [2024-10-14 03:52:39,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146535173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:39,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:39,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 03:52:39,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687296383] [2024-10-14 03:52:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:39,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 03:52:39,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:39,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 03:52:39,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:52:39,724 INFO L87 Difference]: Start difference. First operand 34742 states and 47961 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 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) [2024-10-14 03:52:40,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:40,794 INFO L93 Difference]: Finished difference Result 76203 states and 107156 transitions. [2024-10-14 03:52:40,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:52:40,795 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 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 [2024-10-14 03:52:40,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:40,850 INFO L225 Difference]: With dead ends: 76203 [2024-10-14 03:52:40,850 INFO L226 Difference]: Without dead ends: 51816 [2024-10-14 03:52:40,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-10-14 03:52:40,864 INFO L432 NwaCegarLoop]: 1000 mSDtfsCounter, 5050 mSDsluCounter, 5011 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5050 SdHoareTripleChecker+Valid, 6011 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:40,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5050 Valid, 6011 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:52:40,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51816 states. [2024-10-14 03:52:41,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51816 to 33401. [2024-10-14 03:52:41,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33401 states, 33400 states have (on average 1.3834730538922155) internal successors, (46208), 33400 states have internal predecessors, (46208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33401 states to 33401 states and 46208 transitions. [2024-10-14 03:52:41,260 INFO L78 Accepts]: Start accepts. Automaton has 33401 states and 46208 transitions. Word has length 85 [2024-10-14 03:52:41,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:41,260 INFO L471 AbstractCegarLoop]: Abstraction has 33401 states and 46208 transitions. [2024-10-14 03:52:41,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 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) [2024-10-14 03:52:41,260 INFO L276 IsEmpty]: Start isEmpty. Operand 33401 states and 46208 transitions. [2024-10-14 03:52:41,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:41,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:41,272 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] [2024-10-14 03:52:41,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 03:52:41,273 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:41,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1044523368, now seen corresponding path program 1 times [2024-10-14 03:52:41,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:41,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411108862] [2024-10-14 03:52:41,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:41,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat