./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.4.1.ufo.BOUNDED-8.pals.c.v+nlh-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.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 54dd2c42579f0de559de8ea2b74ae8f2f84f80b7530dd7d24e9994fd7ce14291 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:49:38,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:49:38,448 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:49:38,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:49:38,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:49:38,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:49:38,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:49:38,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:49:38,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:49:38,478 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:49:38,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:49:38,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:49:38,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:49:38,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:49:38,485 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:49:38,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:49:38,486 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:49:38,486 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:49:38,486 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:49:38,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:49:38,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:49:38,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:49:38,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:49:38,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:49:38,492 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:49:38,492 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:49:38,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:49:38,493 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:49:38,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:49:38,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:49:38,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:49:38,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:49:38,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:49:38,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:49:38,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:49:38,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:49:38,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:49:38,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:49:38,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:49:38,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:49:38,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:49:38,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:49:38,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54dd2c42579f0de559de8ea2b74ae8f2f84f80b7530dd7d24e9994fd7ce14291 [2024-10-14 03:49:38,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:49:38,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:49:38,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:49:38,797 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:49:38,797 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:49:38,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-14 03:49:40,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:49:40,597 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:49:40,598 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-14 03:49:40,619 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9aae44e/00ce05599c094a96b0beedb2e2f95eb2/FLAGbf8dd85e2 [2024-10-14 03:49:40,906 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb9aae44e/00ce05599c094a96b0beedb2e2f95eb2 [2024-10-14 03:49:40,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:49:40,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:49:40,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:49:40,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:49:40,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:49:40,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:49:40" (1/1) ... [2024-10-14 03:49:40,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68083b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:40, skipping insertion in model container [2024-10-14 03:49:40,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:49:40" (1/1) ... [2024-10-14 03:49:40,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:49:41,254 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.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7253,7266] [2024-10-14 03:49:41,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:49:41,357 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:49:41,409 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.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7253,7266] [2024-10-14 03:49:41,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:49:41,455 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:49:41,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41 WrapperNode [2024-10-14 03:49:41,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:49:41,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:49:41,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:49:41,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:49:41,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,528 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 738 [2024-10-14 03:49:41,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:49:41,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:49:41,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:49:41,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:49:41,545 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,556 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,599 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 03:49:41,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,635 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:49:41,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:49:41,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:49:41,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:49:41,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (1/1) ... [2024-10-14 03:49:41,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:49:41,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:49:41,683 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 03:49:41,687 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 03:49:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:49:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:49:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:49:41,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:49:41,890 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:49:41,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:49:42,643 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-10-14 03:49:42,643 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:49:42,684 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:49:42,684 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:49:42,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:49:42 BoogieIcfgContainer [2024-10-14 03:49:42,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:49:42,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:49:42,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:49:42,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:49:42,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:49:40" (1/3) ... [2024-10-14 03:49:42,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554fee57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:49:42, skipping insertion in model container [2024-10-14 03:49:42,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:49:41" (2/3) ... [2024-10-14 03:49:42,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554fee57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:49:42, skipping insertion in model container [2024-10-14 03:49:42,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:49:42" (3/3) ... [2024-10-14 03:49:42,694 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-14 03:49:42,710 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:49:42,710 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:49:42,789 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:49:42,799 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;@23cf02f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:49:42,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:49:42,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 176 states have (on average 1.7272727272727273) internal successors, (304), 177 states have internal predecessors, (304), 0 states have call successors, (0), 0 states 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 03:49:42,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 03:49:42,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:42,817 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] [2024-10-14 03:49:42,818 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:42,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash -303443606, now seen corresponding path program 1 times [2024-10-14 03:49:42,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:42,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833852448] [2024-10-14 03:49:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:42,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:43,486 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 03:49:43,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:43,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833852448] [2024-10-14 03:49:43,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833852448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:43,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:43,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:49:43,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344185991] [2024-10-14 03:49:43,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:43,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:49:43,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:43,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:49:43,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:49:43,522 INFO L87 Difference]: Start difference. First operand has 178 states, 176 states have (on average 1.7272727272727273) internal successors, (304), 177 states have internal predecessors, (304), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 03:49:43,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:43,752 INFO L93 Difference]: Finished difference Result 633 states and 1029 transitions. [2024-10-14 03:49:43,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:49:43,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-14 03:49:43,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:43,770 INFO L225 Difference]: With dead ends: 633 [2024-10-14 03:49:43,770 INFO L226 Difference]: Without dead ends: 540 [2024-10-14 03:49:43,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:49:43,777 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 1601 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:43,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 1097 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:49:43,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-10-14 03:49:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 274. [2024-10-14 03:49:43,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.5054945054945055) internal successors, (411), 273 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 03:49:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 411 transitions. [2024-10-14 03:49:43,853 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 411 transitions. Word has length 64 [2024-10-14 03:49:43,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:43,854 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 411 transitions. [2024-10-14 03:49:43,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 03:49:43,854 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 411 transitions. [2024-10-14 03:49:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-14 03:49:43,858 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:43,858 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] [2024-10-14 03:49:43,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:49:43,859 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:43,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:43,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1095782796, now seen corresponding path program 1 times [2024-10-14 03:49:43,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:43,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848436399] [2024-10-14 03:49:43,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:43,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:44,157 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 03:49:44,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:44,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848436399] [2024-10-14 03:49:44,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848436399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:44,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:44,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:49:44,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597399605] [2024-10-14 03:49:44,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:44,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:49:44,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:44,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:49:44,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:49:44,164 INFO L87 Difference]: Start difference. First operand 274 states and 411 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 03:49:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:44,380 INFO L93 Difference]: Finished difference Result 1012 states and 1555 transitions. [2024-10-14 03:49:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:49:44,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-14 03:49:44,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:44,385 INFO L225 Difference]: With dead ends: 1012 [2024-10-14 03:49:44,385 INFO L226 Difference]: Without dead ends: 800 [2024-10-14 03:49:44,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:49:44,388 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 836 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:44,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 848 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:49:44,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-10-14 03:49:44,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 794. [2024-10-14 03:49:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.5258511979823455) internal successors, (1210), 793 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states 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 03:49:44,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1210 transitions. [2024-10-14 03:49:44,462 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1210 transitions. Word has length 65 [2024-10-14 03:49:44,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:44,462 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1210 transitions. [2024-10-14 03:49:44,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 03:49:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1210 transitions. [2024-10-14 03:49:44,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:49:44,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:44,471 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] [2024-10-14 03:49:44,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:49:44,471 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:44,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:44,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1595686128, now seen corresponding path program 1 times [2024-10-14 03:49:44,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:44,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869523003] [2024-10-14 03:49:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:44,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:44,659 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 03:49:44,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:44,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869523003] [2024-10-14 03:49:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869523003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:44,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:44,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:49:44,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251764753] [2024-10-14 03:49:44,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:44,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:49:44,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:44,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:49:44,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:49:44,665 INFO L87 Difference]: Start difference. First operand 794 states and 1210 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 03:49:44,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:44,928 INFO L93 Difference]: Finished difference Result 2126 states and 3280 transitions. [2024-10-14 03:49:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:49:44,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:49:44,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:44,935 INFO L225 Difference]: With dead ends: 2126 [2024-10-14 03:49:44,935 INFO L226 Difference]: Without dead ends: 1382 [2024-10-14 03:49:44,938 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 03:49:44,939 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 998 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:44,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 242 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:49:44,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-10-14 03:49:44,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1380. [2024-10-14 03:49:44,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 1.5337200870195795) internal successors, (2115), 1379 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states 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 03:49:44,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2115 transitions. [2024-10-14 03:49:44,972 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2115 transitions. Word has length 66 [2024-10-14 03:49:44,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:44,972 INFO L471 AbstractCegarLoop]: Abstraction has 1380 states and 2115 transitions. [2024-10-14 03:49:44,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 03:49:44,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2115 transitions. [2024-10-14 03:49:44,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:49:44,975 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:44,976 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] [2024-10-14 03:49:44,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:49:44,977 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:44,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:44,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1582885390, now seen corresponding path program 1 times [2024-10-14 03:49:44,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:44,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613384046] [2024-10-14 03:49:44,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:44,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:45,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:45,130 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 03:49:45,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:45,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613384046] [2024-10-14 03:49:45,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613384046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:45,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:45,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:49:45,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550627732] [2024-10-14 03:49:45,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:45,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:49:45,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:45,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:49:45,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:49:45,133 INFO L87 Difference]: Start difference. First operand 1380 states and 2115 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 03:49:45,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:45,410 INFO L93 Difference]: Finished difference Result 3712 states and 5741 transitions. [2024-10-14 03:49:45,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:49:45,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:49:45,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:45,421 INFO L225 Difference]: With dead ends: 3712 [2024-10-14 03:49:45,421 INFO L226 Difference]: Without dead ends: 2432 [2024-10-14 03:49:45,424 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 03:49:45,425 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 924 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:45,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 248 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:49:45,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2024-10-14 03:49:45,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2430. [2024-10-14 03:49:45,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 2429 states have (on average 1.53684643886373) internal successors, (3733), 2429 states have internal predecessors, (3733), 0 states have call successors, (0), 0 states 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 03:49:45,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3733 transitions. [2024-10-14 03:49:45,494 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3733 transitions. Word has length 66 [2024-10-14 03:49:45,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:45,494 INFO L471 AbstractCegarLoop]: Abstraction has 2430 states and 3733 transitions. [2024-10-14 03:49:45,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 03:49:45,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3733 transitions. [2024-10-14 03:49:45,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:49:45,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:45,497 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] [2024-10-14 03:49:45,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:49:45,498 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:45,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:45,499 INFO L85 PathProgramCache]: Analyzing trace with hash 441008545, now seen corresponding path program 1 times [2024-10-14 03:49:45,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:45,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013640485] [2024-10-14 03:49:45,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:45,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:45,630 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 03:49:45,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:45,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013640485] [2024-10-14 03:49:45,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013640485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:45,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:45,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:49:45,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673883130] [2024-10-14 03:49:45,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:45,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:49:45,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:45,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:49:45,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:49:45,636 INFO L87 Difference]: Start difference. First operand 2430 states and 3733 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 03:49:45,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:45,883 INFO L93 Difference]: Finished difference Result 6933 states and 10704 transitions. [2024-10-14 03:49:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:49:45,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:49:45,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:45,902 INFO L225 Difference]: With dead ends: 6933 [2024-10-14 03:49:45,902 INFO L226 Difference]: Without dead ends: 4576 [2024-10-14 03:49:45,907 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 03:49:45,909 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 950 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:45,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 246 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:49:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4576 states. [2024-10-14 03:49:45,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4576 to 4574. [2024-10-14 03:49:45,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 4573 states have (on average 1.5344412858080034) internal successors, (7017), 4573 states have internal predecessors, (7017), 0 states have call successors, (0), 0 states 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 03:49:46,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 7017 transitions. [2024-10-14 03:49:46,016 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 7017 transitions. Word has length 66 [2024-10-14 03:49:46,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:46,017 INFO L471 AbstractCegarLoop]: Abstraction has 4574 states and 7017 transitions. [2024-10-14 03:49:46,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 03:49:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 7017 transitions. [2024-10-14 03:49:46,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:49:46,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:46,020 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] [2024-10-14 03:49:46,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:49:46,020 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:46,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:46,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1544480193, now seen corresponding path program 1 times [2024-10-14 03:49:46,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:46,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723415572] [2024-10-14 03:49:46,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:46,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:46,162 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 03:49:46,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:46,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723415572] [2024-10-14 03:49:46,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723415572] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:46,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:46,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:49:46,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038799581] [2024-10-14 03:49:46,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:46,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:49:46,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:46,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:49:46,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:49:46,164 INFO L87 Difference]: Start difference. First operand 4574 states and 7017 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 03:49:46,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:46,457 INFO L93 Difference]: Finished difference Result 13472 states and 20724 transitions. [2024-10-14 03:49:46,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:49:46,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-14 03:49:46,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:46,493 INFO L225 Difference]: With dead ends: 13472 [2024-10-14 03:49:46,493 INFO L226 Difference]: Without dead ends: 8932 [2024-10-14 03:49:46,506 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 03:49:46,509 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 1010 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:46,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 240 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:49:46,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8932 states. [2024-10-14 03:49:46,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8932 to 8930. [2024-10-14 03:49:46,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8930 states, 8929 states have (on average 1.5264867286370254) internal successors, (13630), 8929 states have internal predecessors, (13630), 0 states have call successors, (0), 0 states 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 03:49:46,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8930 states to 8930 states and 13630 transitions. [2024-10-14 03:49:46,867 INFO L78 Accepts]: Start accepts. Automaton has 8930 states and 13630 transitions. Word has length 66 [2024-10-14 03:49:46,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:46,867 INFO L471 AbstractCegarLoop]: Abstraction has 8930 states and 13630 transitions. [2024-10-14 03:49:46,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states 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 03:49:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8930 states and 13630 transitions. [2024-10-14 03:49:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:49:46,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:46,876 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] [2024-10-14 03:49:46,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:49:46,876 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:46,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:46,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1843096928, now seen corresponding path program 1 times [2024-10-14 03:49:46,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:46,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561627552] [2024-10-14 03:49:46,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:46,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:47,233 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 03:49:47,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:47,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561627552] [2024-10-14 03:49:47,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561627552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:47,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:47,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:49:47,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625073686] [2024-10-14 03:49:47,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:47,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:49:47,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:47,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:49:47,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:49:47,236 INFO L87 Difference]: Start difference. First operand 8930 states and 13630 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 03:49:47,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:47,295 INFO L93 Difference]: Finished difference Result 9188 states and 14015 transitions. [2024-10-14 03:49:47,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:49:47,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-14 03:49:47,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:47,343 INFO L225 Difference]: With dead ends: 9188 [2024-10-14 03:49:47,343 INFO L226 Difference]: Without dead ends: 9186 [2024-10-14 03:49:47,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:49:47,350 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:47,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 961 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9186 states. [2024-10-14 03:49:47,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9186 to 9186. [2024-10-14 03:49:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9186 states, 9185 states have (on average 1.5118127381600435) internal successors, (13886), 9185 states have internal predecessors, (13886), 0 states have call successors, (0), 0 states 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 03:49:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9186 states to 9186 states and 13886 transitions. [2024-10-14 03:49:47,532 INFO L78 Accepts]: Start accepts. Automaton has 9186 states and 13886 transitions. Word has length 67 [2024-10-14 03:49:47,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:47,533 INFO L471 AbstractCegarLoop]: Abstraction has 9186 states and 13886 transitions. [2024-10-14 03:49:47,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 03:49:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states and 13886 transitions. [2024-10-14 03:49:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 03:49:47,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:47,537 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] [2024-10-14 03:49:47,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:49:47,537 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:47,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:47,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1022976121, now seen corresponding path program 1 times [2024-10-14 03:49:47,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:47,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85562671] [2024-10-14 03:49:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:47,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:47,769 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 03:49:47,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:47,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85562671] [2024-10-14 03:49:47,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85562671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:47,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:47,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:49:47,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799068377] [2024-10-14 03:49:47,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:47,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:49:47,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:47,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:49:47,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:49:47,772 INFO L87 Difference]: Start difference. First operand 9186 states and 13886 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 03:49:47,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:47,878 INFO L93 Difference]: Finished difference Result 25030 states and 37772 transitions. [2024-10-14 03:49:47,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:49:47,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-14 03:49:47,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:47,917 INFO L225 Difference]: With dead ends: 25030 [2024-10-14 03:49:47,918 INFO L226 Difference]: Without dead ends: 16452 [2024-10-14 03:49:47,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:49:47,937 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 201 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:47,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 608 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:47,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16452 states. [2024-10-14 03:49:48,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16452 to 16450. [2024-10-14 03:49:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16450 states, 16449 states have (on average 1.497112286461183) internal successors, (24626), 16449 states have internal predecessors, (24626), 0 states have call successors, (0), 0 states 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 03:49:48,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16450 states to 16450 states and 24626 transitions. [2024-10-14 03:49:48,362 INFO L78 Accepts]: Start accepts. Automaton has 16450 states and 24626 transitions. Word has length 68 [2024-10-14 03:49:48,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:48,363 INFO L471 AbstractCegarLoop]: Abstraction has 16450 states and 24626 transitions. [2024-10-14 03:49:48,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 03:49:48,364 INFO L276 IsEmpty]: Start isEmpty. Operand 16450 states and 24626 transitions. [2024-10-14 03:49:48,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:49:48,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:48,366 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] [2024-10-14 03:49:48,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:49:48,366 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:48,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:48,367 INFO L85 PathProgramCache]: Analyzing trace with hash 727982169, now seen corresponding path program 1 times [2024-10-14 03:49:48,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:48,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160054736] [2024-10-14 03:49:48,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:48,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:48,429 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 03:49:48,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:48,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160054736] [2024-10-14 03:49:48,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160054736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:48,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:48,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:48,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017581035] [2024-10-14 03:49:48,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:48,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:48,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:48,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:48,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:48,433 INFO L87 Difference]: Start difference. First operand 16450 states and 24626 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:48,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:48,533 INFO L93 Difference]: Finished difference Result 29077 states and 43494 transitions. [2024-10-14 03:49:48,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:48,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:49:48,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:48,585 INFO L225 Difference]: With dead ends: 29077 [2024-10-14 03:49:48,585 INFO L226 Difference]: Without dead ends: 20047 [2024-10-14 03:49:48,603 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 03:49:48,606 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 155 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 465 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 03:49:48,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 465 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:48,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20047 states. [2024-10-14 03:49:49,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20047 to 19822. [2024-10-14 03:49:49,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19822 states, 19821 states have (on average 1.4736390696735786) internal successors, (29209), 19821 states have internal predecessors, (29209), 0 states have call successors, (0), 0 states 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 03:49:49,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19822 states to 19822 states and 29209 transitions. [2024-10-14 03:49:49,134 INFO L78 Accepts]: Start accepts. Automaton has 19822 states and 29209 transitions. Word has length 69 [2024-10-14 03:49:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:49,135 INFO L471 AbstractCegarLoop]: Abstraction has 19822 states and 29209 transitions. [2024-10-14 03:49:49,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 19822 states and 29209 transitions. [2024-10-14 03:49:49,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:49:49,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:49,138 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] [2024-10-14 03:49:49,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:49:49,139 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:49,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:49,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1778498824, now seen corresponding path program 1 times [2024-10-14 03:49:49,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:49,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994651037] [2024-10-14 03:49:49,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:49,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:49,217 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 03:49:49,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:49,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994651037] [2024-10-14 03:49:49,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994651037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:49,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:49,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:49,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622772916] [2024-10-14 03:49:49,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:49,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:49,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:49,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:49,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:49,219 INFO L87 Difference]: Start difference. First operand 19822 states and 29209 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:49,308 INFO L93 Difference]: Finished difference Result 26900 states and 39488 transitions. [2024-10-14 03:49:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:49,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:49:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:49,347 INFO L225 Difference]: With dead ends: 26900 [2024-10-14 03:49:49,347 INFO L226 Difference]: Without dead ends: 20311 [2024-10-14 03:49:49,363 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 03:49:49,364 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 143 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:49,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 463 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20311 states. [2024-10-14 03:49:49,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20311 to 18377. [2024-10-14 03:49:49,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18377 states, 18376 states have (on average 1.4465063125816282) internal successors, (26581), 18376 states have internal predecessors, (26581), 0 states have call successors, (0), 0 states 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 03:49:49,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18377 states to 18377 states and 26581 transitions. [2024-10-14 03:49:49,853 INFO L78 Accepts]: Start accepts. Automaton has 18377 states and 26581 transitions. Word has length 69 [2024-10-14 03:49:49,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:49,854 INFO L471 AbstractCegarLoop]: Abstraction has 18377 states and 26581 transitions. [2024-10-14 03:49:49,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:49,854 INFO L276 IsEmpty]: Start isEmpty. Operand 18377 states and 26581 transitions. [2024-10-14 03:49:49,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:49:49,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:49,857 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] [2024-10-14 03:49:49,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:49:49,857 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:49,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:49,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1077276120, now seen corresponding path program 1 times [2024-10-14 03:49:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:49,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664273579] [2024-10-14 03:49:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:49,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:49,983 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 03:49:49,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:49,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664273579] [2024-10-14 03:49:49,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664273579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:49,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:49,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:49:49,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651249075] [2024-10-14 03:49:49,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:49,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:49:49,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:49,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:49:49,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:49:49,985 INFO L87 Difference]: Start difference. First operand 18377 states and 26581 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:50,221 INFO L93 Difference]: Finished difference Result 36535 states and 53220 transitions. [2024-10-14 03:49:50,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:49:50,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:49:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:50,282 INFO L225 Difference]: With dead ends: 36535 [2024-10-14 03:49:50,282 INFO L226 Difference]: Without dead ends: 29181 [2024-10-14 03:49:50,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:49:50,308 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 1114 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:50,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1332 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:49:50,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29181 states. [2024-10-14 03:49:50,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29181 to 24795. [2024-10-14 03:49:50,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24795 states, 24794 states have (on average 1.4470033072517545) internal successors, (35877), 24794 states have internal predecessors, (35877), 0 states have call successors, (0), 0 states 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 03:49:50,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24795 states to 24795 states and 35877 transitions. [2024-10-14 03:49:50,927 INFO L78 Accepts]: Start accepts. Automaton has 24795 states and 35877 transitions. Word has length 69 [2024-10-14 03:49:50,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:50,928 INFO L471 AbstractCegarLoop]: Abstraction has 24795 states and 35877 transitions. [2024-10-14 03:49:50,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:50,928 INFO L276 IsEmpty]: Start isEmpty. Operand 24795 states and 35877 transitions. [2024-10-14 03:49:50,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:49:50,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:50,931 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] [2024-10-14 03:49:50,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:49:50,931 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:50,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:50,932 INFO L85 PathProgramCache]: Analyzing trace with hash -736167559, now seen corresponding path program 1 times [2024-10-14 03:49:50,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:50,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476924675] [2024-10-14 03:49:50,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:50,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:51,005 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 03:49:51,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:51,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476924675] [2024-10-14 03:49:51,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476924675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:51,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:51,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:51,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821202108] [2024-10-14 03:49:51,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:51,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:51,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:51,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:51,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:51,009 INFO L87 Difference]: Start difference. First operand 24795 states and 35877 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:51,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:51,349 INFO L93 Difference]: Finished difference Result 64326 states and 93099 transitions. [2024-10-14 03:49:51,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:51,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:49:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:51,436 INFO L225 Difference]: With dead ends: 64326 [2024-10-14 03:49:51,436 INFO L226 Difference]: Without dead ends: 42804 [2024-10-14 03:49:51,477 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 03:49:51,478 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 173 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 463 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 03:49:51,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 463 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:51,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42804 states. [2024-10-14 03:49:52,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42804 to 42712. [2024-10-14 03:49:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42712 states, 42711 states have (on average 1.433588536910866) internal successors, (61230), 42711 states have internal predecessors, (61230), 0 states have call successors, (0), 0 states 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 03:49:52,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42712 states to 42712 states and 61230 transitions. [2024-10-14 03:49:52,312 INFO L78 Accepts]: Start accepts. Automaton has 42712 states and 61230 transitions. Word has length 69 [2024-10-14 03:49:52,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:52,312 INFO L471 AbstractCegarLoop]: Abstraction has 42712 states and 61230 transitions. [2024-10-14 03:49:52,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:52,313 INFO L276 IsEmpty]: Start isEmpty. Operand 42712 states and 61230 transitions. [2024-10-14 03:49:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:49:52,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:52,317 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] [2024-10-14 03:49:52,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:49:52,318 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:52,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:52,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1508312264, now seen corresponding path program 1 times [2024-10-14 03:49:52,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:52,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603206304] [2024-10-14 03:49:52,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:52,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:52,605 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 03:49:52,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:52,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603206304] [2024-10-14 03:49:52,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603206304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:52,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:52,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:49:52,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791907569] [2024-10-14 03:49:52,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:52,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:49:52,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:52,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:49:52,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:49:52,608 INFO L87 Difference]: Start difference. First operand 42712 states and 61230 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:52,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:52,920 INFO L93 Difference]: Finished difference Result 60346 states and 86847 transitions. [2024-10-14 03:49:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:49:52,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:49:52,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:53,029 INFO L225 Difference]: With dead ends: 60346 [2024-10-14 03:49:53,030 INFO L226 Difference]: Without dead ends: 57374 [2024-10-14 03:49:53,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:49:53,053 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 1121 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:53,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 1181 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:49:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57374 states. [2024-10-14 03:49:53,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57374 to 45652. [2024-10-14 03:49:53,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45652 states, 45651 states have (on average 1.4336159120282141) internal successors, (65446), 45651 states have internal predecessors, (65446), 0 states have call successors, (0), 0 states 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 03:49:53,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45652 states to 45652 states and 65446 transitions. [2024-10-14 03:49:53,912 INFO L78 Accepts]: Start accepts. Automaton has 45652 states and 65446 transitions. Word has length 69 [2024-10-14 03:49:53,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:53,913 INFO L471 AbstractCegarLoop]: Abstraction has 45652 states and 65446 transitions. [2024-10-14 03:49:53,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:53,913 INFO L276 IsEmpty]: Start isEmpty. Operand 45652 states and 65446 transitions. [2024-10-14 03:49:53,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:49:53,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:53,919 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] [2024-10-14 03:49:53,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:49:53,919 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:53,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:53,920 INFO L85 PathProgramCache]: Analyzing trace with hash -567435143, now seen corresponding path program 1 times [2024-10-14 03:49:53,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:53,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946637892] [2024-10-14 03:49:53,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:53,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:54,045 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 03:49:54,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:54,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946637892] [2024-10-14 03:49:54,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946637892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:54,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:54,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:49:54,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181694942] [2024-10-14 03:49:54,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:54,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:49:54,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:54,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:49:54,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:49:54,048 INFO L87 Difference]: Start difference. First operand 45652 states and 65446 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:54,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:54,608 INFO L93 Difference]: Finished difference Result 66852 states and 96245 transitions. [2024-10-14 03:49:54,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:49:54,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:49:54,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:54,677 INFO L225 Difference]: With dead ends: 66852 [2024-10-14 03:49:54,677 INFO L226 Difference]: Without dead ends: 60240 [2024-10-14 03:49:54,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:49:54,695 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1028 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:54,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1371 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:49:54,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60240 states. [2024-10-14 03:49:55,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60240 to 52218. [2024-10-14 03:49:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52218 states, 52217 states have (on average 1.433632724974625) internal successors, (74860), 52217 states have internal predecessors, (74860), 0 states have call successors, (0), 0 states 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 03:49:55,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52218 states to 52218 states and 74860 transitions. [2024-10-14 03:49:55,572 INFO L78 Accepts]: Start accepts. Automaton has 52218 states and 74860 transitions. Word has length 69 [2024-10-14 03:49:55,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:55,572 INFO L471 AbstractCegarLoop]: Abstraction has 52218 states and 74860 transitions. [2024-10-14 03:49:55,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:55,572 INFO L276 IsEmpty]: Start isEmpty. Operand 52218 states and 74860 transitions. [2024-10-14 03:49:55,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 03:49:55,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:55,578 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] [2024-10-14 03:49:55,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:49:55,578 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:55,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:55,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1772958041, now seen corresponding path program 1 times [2024-10-14 03:49:55,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:55,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483851705] [2024-10-14 03:49:55,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:55,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:55,736 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 03:49:55,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:55,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483851705] [2024-10-14 03:49:55,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483851705] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:55,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:55,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:49:55,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029269134] [2024-10-14 03:49:55,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:55,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:49:55,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:55,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:49:55,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:49:55,739 INFO L87 Difference]: Start difference. First operand 52218 states and 74860 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:56,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:56,386 INFO L93 Difference]: Finished difference Result 82000 states and 118199 transitions. [2024-10-14 03:49:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:49:56,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-14 03:49:56,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:56,603 INFO L225 Difference]: With dead ends: 82000 [2024-10-14 03:49:56,603 INFO L226 Difference]: Without dead ends: 70430 [2024-10-14 03:49:56,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:49:56,630 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 1122 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:49:56,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1304 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:49:56,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70430 states. [2024-10-14 03:49:57,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70430 to 61048. [2024-10-14 03:49:57,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61048 states, 61047 states have (on average 1.4345012858944748) internal successors, (87572), 61047 states have internal predecessors, (87572), 0 states have call successors, (0), 0 states 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 03:49:57,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61048 states to 61048 states and 87572 transitions. [2024-10-14 03:49:57,580 INFO L78 Accepts]: Start accepts. Automaton has 61048 states and 87572 transitions. Word has length 69 [2024-10-14 03:49:57,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:57,580 INFO L471 AbstractCegarLoop]: Abstraction has 61048 states and 87572 transitions. [2024-10-14 03:49:57,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 03:49:57,581 INFO L276 IsEmpty]: Start isEmpty. Operand 61048 states and 87572 transitions. [2024-10-14 03:49:57,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 03:49:57,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:57,587 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] [2024-10-14 03:49:57,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:49:57,588 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:57,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:57,588 INFO L85 PathProgramCache]: Analyzing trace with hash -390496674, now seen corresponding path program 1 times [2024-10-14 03:49:57,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:57,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046907602] [2024-10-14 03:49:57,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:57,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:57,641 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 03:49:57,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:57,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046907602] [2024-10-14 03:49:57,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046907602] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:57,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:57,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:49:57,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704523966] [2024-10-14 03:49:57,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:57,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:49:57,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:57,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:49:57,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:49:57,643 INFO L87 Difference]: Start difference. First operand 61048 states and 87572 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 03:49:57,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:49:57,943 INFO L93 Difference]: Finished difference Result 125553 states and 179234 transitions. [2024-10-14 03:49:57,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:49:57,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-10-14 03:49:57,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:49:58,038 INFO L225 Difference]: With dead ends: 125553 [2024-10-14 03:49:58,038 INFO L226 Difference]: Without dead ends: 68316 [2024-10-14 03:49:58,091 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 03:49:58,091 INFO L432 NwaCegarLoop]: 342 mSDtfsCounter, 159 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 563 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 03:49:58,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 563 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:49:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68316 states. [2024-10-14 03:49:58,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68316 to 62535. [2024-10-14 03:49:59,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62535 states, 62534 states have (on average 1.3985991620558416) internal successors, (87460), 62534 states have internal predecessors, (87460), 0 states have call successors, (0), 0 states 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 03:49:59,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62535 states to 62535 states and 87460 transitions. [2024-10-14 03:49:59,458 INFO L78 Accepts]: Start accepts. Automaton has 62535 states and 87460 transitions. Word has length 72 [2024-10-14 03:49:59,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:49:59,458 INFO L471 AbstractCegarLoop]: Abstraction has 62535 states and 87460 transitions. [2024-10-14 03:49:59,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 03:49:59,458 INFO L276 IsEmpty]: Start isEmpty. Operand 62535 states and 87460 transitions. [2024-10-14 03:49:59,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:49:59,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:49:59,493 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:49:59,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:49:59,498 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:49:59,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:49:59,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1903153330, now seen corresponding path program 1 times [2024-10-14 03:49:59,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:49:59,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641041962] [2024-10-14 03:49:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:49:59,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:49:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:49:59,683 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 03:49:59,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:49:59,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641041962] [2024-10-14 03:49:59,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641041962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:49:59,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:49:59,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:49:59,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433309878] [2024-10-14 03:49:59,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:49:59,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:49:59,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:49:59,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:49:59,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:49:59,686 INFO L87 Difference]: Start difference. First operand 62535 states and 87460 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 03:50:00,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:00,635 INFO L93 Difference]: Finished difference Result 188772 states and 262434 transitions. [2024-10-14 03:50:00,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:50:00,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-14 03:50:00,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:00,906 INFO L225 Difference]: With dead ends: 188772 [2024-10-14 03:50:00,906 INFO L226 Difference]: Without dead ends: 165957 [2024-10-14 03:50:00,979 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 03:50:00,980 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1774 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:00,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 466 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:50:01,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165957 states. [2024-10-14 03:50:02,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165957 to 62651. [2024-10-14 03:50:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62651 states, 62650 states have (on average 1.39829209896249) internal successors, (87603), 62650 states have internal predecessors, (87603), 0 states have call successors, (0), 0 states 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 03:50:02,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62651 states to 62651 states and 87603 transitions. [2024-10-14 03:50:02,943 INFO L78 Accepts]: Start accepts. Automaton has 62651 states and 87603 transitions. Word has length 74 [2024-10-14 03:50:02,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:02,943 INFO L471 AbstractCegarLoop]: Abstraction has 62651 states and 87603 transitions. [2024-10-14 03:50:02,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 03:50:02,944 INFO L276 IsEmpty]: Start isEmpty. Operand 62651 states and 87603 transitions. [2024-10-14 03:50:02,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:50:02,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:02,953 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] [2024-10-14 03:50:02,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:50:02,953 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:02,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash -331835791, now seen corresponding path program 1 times [2024-10-14 03:50:02,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:02,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398889733] [2024-10-14 03:50:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:02,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:03,084 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 03:50:03,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:03,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398889733] [2024-10-14 03:50:03,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398889733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:03,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:03,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:50:03,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112271970] [2024-10-14 03:50:03,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:03,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:50:03,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:03,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:50:03,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:50:03,086 INFO L87 Difference]: Start difference. First operand 62651 states and 87603 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 03:50:03,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:03,895 INFO L93 Difference]: Finished difference Result 186239 states and 257736 transitions. [2024-10-14 03:50:03,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:50:03,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-14 03:50:03,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:04,125 INFO L225 Difference]: With dead ends: 186239 [2024-10-14 03:50:04,126 INFO L226 Difference]: Without dead ends: 163481 [2024-10-14 03:50:04,191 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 03:50:04,191 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1544 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:04,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 471 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:50:04,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163481 states. [2024-10-14 03:50:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163481 to 62879. [2024-10-14 03:50:05,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62879 states, 62878 states have (on average 1.3978975158242946) internal successors, (87897), 62878 states have internal predecessors, (87897), 0 states have call successors, (0), 0 states 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 03:50:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62879 states to 62879 states and 87897 transitions. [2024-10-14 03:50:06,141 INFO L78 Accepts]: Start accepts. Automaton has 62879 states and 87897 transitions. Word has length 74 [2024-10-14 03:50:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:06,141 INFO L471 AbstractCegarLoop]: Abstraction has 62879 states and 87897 transitions. [2024-10-14 03:50:06,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 03:50:06,142 INFO L276 IsEmpty]: Start isEmpty. Operand 62879 states and 87897 transitions. [2024-10-14 03:50:06,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:50:06,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:06,150 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] [2024-10-14 03:50:06,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:50:06,150 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:06,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:06,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1896213327, now seen corresponding path program 1 times [2024-10-14 03:50:06,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:06,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366448590] [2024-10-14 03:50:06,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:06,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:06,301 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 03:50:06,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:06,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366448590] [2024-10-14 03:50:06,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366448590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:06,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:06,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:50:06,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364600134] [2024-10-14 03:50:06,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:06,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:50:06,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:06,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:50:06,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:50:06,305 INFO L87 Difference]: Start difference. First operand 62879 states and 87897 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 03:50:07,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:07,058 INFO L93 Difference]: Finished difference Result 154056 states and 212966 transitions. [2024-10-14 03:50:07,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:50:07,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-14 03:50:07,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:07,239 INFO L225 Difference]: With dead ends: 154056 [2024-10-14 03:50:07,239 INFO L226 Difference]: Without dead ends: 120019 [2024-10-14 03:50:07,295 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 03:50:07,296 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1262 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:07,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 392 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:50:07,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120019 states. [2024-10-14 03:50:08,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120019 to 62929. [2024-10-14 03:50:08,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62929 states, 62928 states have (on average 1.3977402745995424) internal successors, (87957), 62928 states have internal predecessors, (87957), 0 states have call successors, (0), 0 states 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 03:50:08,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62929 states to 62929 states and 87957 transitions. [2024-10-14 03:50:08,881 INFO L78 Accepts]: Start accepts. Automaton has 62929 states and 87957 transitions. Word has length 74 [2024-10-14 03:50:08,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:08,881 INFO L471 AbstractCegarLoop]: Abstraction has 62929 states and 87957 transitions. [2024-10-14 03:50:08,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 03:50:08,882 INFO L276 IsEmpty]: Start isEmpty. Operand 62929 states and 87957 transitions. [2024-10-14 03:50:08,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 03:50:08,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:08,889 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] [2024-10-14 03:50:08,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:50:08,889 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:08,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:08,890 INFO L85 PathProgramCache]: Analyzing trace with hash -97924719, now seen corresponding path program 1 times [2024-10-14 03:50:08,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:08,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753594505] [2024-10-14 03:50:08,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:08,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:09,020 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 03:50:09,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:09,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753594505] [2024-10-14 03:50:09,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753594505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:09,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:09,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:50:09,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233700252] [2024-10-14 03:50:09,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:09,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:50:09,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:09,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:50:09,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:50:09,022 INFO L87 Difference]: Start difference. First operand 62929 states and 87957 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 03:50:10,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:10,212 INFO L93 Difference]: Finished difference Result 149212 states and 205758 transitions. [2024-10-14 03:50:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:50:10,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-14 03:50:10,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:10,404 INFO L225 Difference]: With dead ends: 149212 [2024-10-14 03:50:10,404 INFO L226 Difference]: Without dead ends: 137306 [2024-10-14 03:50:10,447 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 03:50:10,448 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1465 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:10,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 438 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:50:10,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137306 states. [2024-10-14 03:50:11,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137306 to 63385. [2024-10-14 03:50:11,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63385 states, 63384 states have (on average 1.3965196264041397) internal successors, (88517), 63384 states have internal predecessors, (88517), 0 states have call successors, (0), 0 states 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 03:50:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63385 states to 63385 states and 88517 transitions. [2024-10-14 03:50:11,755 INFO L78 Accepts]: Start accepts. Automaton has 63385 states and 88517 transitions. Word has length 74 [2024-10-14 03:50:11,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:11,756 INFO L471 AbstractCegarLoop]: Abstraction has 63385 states and 88517 transitions. [2024-10-14 03:50:11,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 03:50:11,756 INFO L276 IsEmpty]: Start isEmpty. Operand 63385 states and 88517 transitions. [2024-10-14 03:50:11,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:50:11,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:11,765 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] [2024-10-14 03:50:11,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:50:11,765 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:11,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:11,766 INFO L85 PathProgramCache]: Analyzing trace with hash 547595205, now seen corresponding path program 1 times [2024-10-14 03:50:11,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:11,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256618246] [2024-10-14 03:50:11,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:11,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:12,114 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 03:50:12,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:12,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256618246] [2024-10-14 03:50:12,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256618246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:12,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:12,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:50:12,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256535197] [2024-10-14 03:50:12,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:12,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:50:12,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:12,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:50:12,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:50:12,116 INFO L87 Difference]: Start difference. First operand 63385 states and 88517 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 03:50:12,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:12,848 INFO L93 Difference]: Finished difference Result 108702 states and 151105 transitions. [2024-10-14 03:50:12,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:50:12,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-14 03:50:12,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:12,979 INFO L225 Difference]: With dead ends: 108702 [2024-10-14 03:50:12,979 INFO L226 Difference]: Without dead ends: 93115 [2024-10-14 03:50:13,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-14 03:50:13,019 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 951 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:13,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 754 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:50:13,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93115 states. [2024-10-14 03:50:14,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93115 to 63092. [2024-10-14 03:50:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63092 states, 63091 states have (on average 1.396411532548224) internal successors, (88101), 63091 states have internal predecessors, (88101), 0 states have call successors, (0), 0 states 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 03:50:14,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63092 states to 63092 states and 88101 transitions. [2024-10-14 03:50:14,636 INFO L78 Accepts]: Start accepts. Automaton has 63092 states and 88101 transitions. Word has length 76 [2024-10-14 03:50:14,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:14,637 INFO L471 AbstractCegarLoop]: Abstraction has 63092 states and 88101 transitions. [2024-10-14 03:50:14,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 03:50:14,637 INFO L276 IsEmpty]: Start isEmpty. Operand 63092 states and 88101 transitions. [2024-10-14 03:50:14,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:50:14,646 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:14,646 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] [2024-10-14 03:50:14,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 03:50:14,647 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:14,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:14,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1053820475, now seen corresponding path program 1 times [2024-10-14 03:50:14,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:14,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432120551] [2024-10-14 03:50:14,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:14,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:15,488 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 03:50:15,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:15,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432120551] [2024-10-14 03:50:15,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432120551] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:15,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:15,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:50:15,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244531109] [2024-10-14 03:50:15,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:15,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:50:15,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:15,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:50:15,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:50:15,490 INFO L87 Difference]: Start difference. First operand 63092 states and 88101 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 03:50:16,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:16,288 INFO L93 Difference]: Finished difference Result 159143 states and 221872 transitions. [2024-10-14 03:50:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:50:16,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-14 03:50:16,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:16,431 INFO L225 Difference]: With dead ends: 159143 [2024-10-14 03:50:16,432 INFO L226 Difference]: Without dead ends: 103709 [2024-10-14 03:50:16,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-14 03:50:16,492 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1117 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:16,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 788 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:50:16,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103709 states. [2024-10-14 03:50:17,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103709 to 62953. [2024-10-14 03:50:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62953 states, 62952 states have (on average 1.3957936205362815) internal successors, (87868), 62952 states have internal predecessors, (87868), 0 states have call successors, (0), 0 states 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 03:50:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62953 states to 62953 states and 87868 transitions. [2024-10-14 03:50:17,704 INFO L78 Accepts]: Start accepts. Automaton has 62953 states and 87868 transitions. Word has length 76 [2024-10-14 03:50:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:17,705 INFO L471 AbstractCegarLoop]: Abstraction has 62953 states and 87868 transitions. [2024-10-14 03:50:17,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 03:50:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 62953 states and 87868 transitions. [2024-10-14 03:50:17,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:50:17,714 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:17,714 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] [2024-10-14 03:50:17,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 03:50:17,714 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:17,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:17,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1056205913, now seen corresponding path program 1 times [2024-10-14 03:50:17,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:17,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475984699] [2024-10-14 03:50:17,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:17,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:50:17,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:17,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475984699] [2024-10-14 03:50:17,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475984699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:17,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:17,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:50:17,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258772165] [2024-10-14 03:50:17,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:17,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:50:17,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:17,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:50:17,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:50:17,978 INFO L87 Difference]: Start difference. First operand 62953 states and 87868 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 03:50:19,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:19,223 INFO L93 Difference]: Finished difference Result 134663 states and 187781 transitions. [2024-10-14 03:50:19,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:50:19,228 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-14 03:50:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:19,406 INFO L225 Difference]: With dead ends: 134663 [2024-10-14 03:50:19,407 INFO L226 Difference]: Without dead ends: 94705 [2024-10-14 03:50:19,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-14 03:50:19,421 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 997 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:19,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 866 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:50:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94705 states. [2024-10-14 03:50:20,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94705 to 62904. [2024-10-14 03:50:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62904 states, 62903 states have (on average 1.3945757754002195) internal successors, (87723), 62903 states have internal predecessors, (87723), 0 states have call successors, (0), 0 states 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 03:50:20,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62904 states to 62904 states and 87723 transitions. [2024-10-14 03:50:20,188 INFO L78 Accepts]: Start accepts. Automaton has 62904 states and 87723 transitions. Word has length 76 [2024-10-14 03:50:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:20,188 INFO L471 AbstractCegarLoop]: Abstraction has 62904 states and 87723 transitions. [2024-10-14 03:50:20,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 03:50:20,189 INFO L276 IsEmpty]: Start isEmpty. Operand 62904 states and 87723 transitions. [2024-10-14 03:50:20,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 03:50:20,195 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:20,195 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] [2024-10-14 03:50:20,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 03:50:20,195 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:20,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:20,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1555686085, now seen corresponding path program 1 times [2024-10-14 03:50:20,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:20,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404780323] [2024-10-14 03:50:20,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:20,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:21,026 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 03:50:21,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:21,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404780323] [2024-10-14 03:50:21,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404780323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:21,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:21,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:50:21,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636485093] [2024-10-14 03:50:21,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:21,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:50:21,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:21,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:50:21,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:50:21,029 INFO L87 Difference]: Start difference. First operand 62904 states and 87723 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 03:50:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:22,086 INFO L93 Difference]: Finished difference Result 148375 states and 206305 transitions. [2024-10-14 03:50:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 03:50:22,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-14 03:50:22,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:22,212 INFO L225 Difference]: With dead ends: 148375 [2024-10-14 03:50:22,212 INFO L226 Difference]: Without dead ends: 87173 [2024-10-14 03:50:22,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:50:22,273 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 750 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:22,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1094 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 03:50:22,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87173 states. [2024-10-14 03:50:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87173 to 62609. [2024-10-14 03:50:23,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62609 states, 62608 states have (on average 1.3945023000255559) internal successors, (87307), 62608 states have internal predecessors, (87307), 0 states have call successors, (0), 0 states 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 03:50:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62609 states to 62609 states and 87307 transitions. [2024-10-14 03:50:23,491 INFO L78 Accepts]: Start accepts. Automaton has 62609 states and 87307 transitions. Word has length 76 [2024-10-14 03:50:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:23,492 INFO L471 AbstractCegarLoop]: Abstraction has 62609 states and 87307 transitions. [2024-10-14 03:50:23,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 03:50:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 62609 states and 87307 transitions. [2024-10-14 03:50:23,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 03:50:23,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:23,496 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] [2024-10-14 03:50:23,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 03:50:23,496 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:23,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:23,496 INFO L85 PathProgramCache]: Analyzing trace with hash 32988097, now seen corresponding path program 1 times [2024-10-14 03:50:23,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:23,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116912800] [2024-10-14 03:50:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:23,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:24,260 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 03:50:24,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:24,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116912800] [2024-10-14 03:50:24,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116912800] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:24,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:24,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:50:24,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755093971] [2024-10-14 03:50:24,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:24,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:50:24,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:24,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:50:24,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:50:24,262 INFO L87 Difference]: Start difference. First operand 62609 states and 87307 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 03:50:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:25,552 INFO L93 Difference]: Finished difference Result 114969 states and 160319 transitions. [2024-10-14 03:50:25,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:50:25,553 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-14 03:50:25,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:25,709 INFO L225 Difference]: With dead ends: 114969 [2024-10-14 03:50:25,709 INFO L226 Difference]: Without dead ends: 106968 [2024-10-14 03:50:25,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 03:50:25,746 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1345 mSDsluCounter, 1865 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:25,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 2183 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:50:25,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106968 states. [2024-10-14 03:50:26,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106968 to 62625. [2024-10-14 03:50:26,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62625 states, 62624 states have (on average 1.394241824220746) internal successors, (87313), 62624 states have internal predecessors, (87313), 0 states have call successors, (0), 0 states 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 03:50:27,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62625 states to 62625 states and 87313 transitions. [2024-10-14 03:50:27,055 INFO L78 Accepts]: Start accepts. Automaton has 62625 states and 87313 transitions. Word has length 77 [2024-10-14 03:50:27,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:27,055 INFO L471 AbstractCegarLoop]: Abstraction has 62625 states and 87313 transitions. [2024-10-14 03:50:27,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 03:50:27,055 INFO L276 IsEmpty]: Start isEmpty. Operand 62625 states and 87313 transitions. [2024-10-14 03:50:27,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-14 03:50:27,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:27,060 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] [2024-10-14 03:50:27,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 03:50:27,060 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:27,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:27,060 INFO L85 PathProgramCache]: Analyzing trace with hash -922993607, now seen corresponding path program 1 times [2024-10-14 03:50:27,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:27,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240122219] [2024-10-14 03:50:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:27,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:27,736 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 03:50:27,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:27,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240122219] [2024-10-14 03:50:27,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240122219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:27,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:27,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:50:27,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440202126] [2024-10-14 03:50:27,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:27,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:50:27,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:27,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:50:27,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:50:27,739 INFO L87 Difference]: Start difference. First operand 62625 states and 87313 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 03:50:28,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:28,738 INFO L93 Difference]: Finished difference Result 124348 states and 173362 transitions. [2024-10-14 03:50:28,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 03:50:28,739 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-14 03:50:28,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:28,863 INFO L225 Difference]: With dead ends: 124348 [2024-10-14 03:50:28,864 INFO L226 Difference]: Without dead ends: 98262 [2024-10-14 03:50:28,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-14 03:50:28,910 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 1323 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:28,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 2186 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:50:28,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98262 states. [2024-10-14 03:50:30,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98262 to 62455. [2024-10-14 03:50:30,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62455 states, 62454 states have (on average 1.3946584686329138) internal successors, (87102), 62454 states have internal predecessors, (87102), 0 states have call successors, (0), 0 states 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 03:50:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62455 states to 62455 states and 87102 transitions. [2024-10-14 03:50:30,292 INFO L78 Accepts]: Start accepts. Automaton has 62455 states and 87102 transitions. Word has length 77 [2024-10-14 03:50:30,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:30,292 INFO L471 AbstractCegarLoop]: Abstraction has 62455 states and 87102 transitions. [2024-10-14 03:50:30,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 03:50:30,293 INFO L276 IsEmpty]: Start isEmpty. Operand 62455 states and 87102 transitions. [2024-10-14 03:50:30,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 03:50:30,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:30,296 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 03:50:30,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 03:50:30,297 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:30,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:30,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1122440523, now seen corresponding path program 1 times [2024-10-14 03:50:30,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:30,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211264405] [2024-10-14 03:50:30,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:30,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:30,342 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 03:50:30,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:30,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211264405] [2024-10-14 03:50:30,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211264405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:30,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:30,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:50:30,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544704664] [2024-10-14 03:50:30,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:30,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:50:30,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:30,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:50:30,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:50:30,345 INFO L87 Difference]: Start difference. First operand 62455 states and 87102 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 03:50:31,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:31,317 INFO L93 Difference]: Finished difference Result 114443 states and 159342 transitions. [2024-10-14 03:50:31,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:50:31,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 03:50:31,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:31,526 INFO L225 Difference]: With dead ends: 114443 [2024-10-14 03:50:31,526 INFO L226 Difference]: Without dead ends: 86098 [2024-10-14 03:50:31,542 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 03:50:31,543 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 196 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:31,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 382 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:50:31,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86098 states. [2024-10-14 03:50:32,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86098 to 85952. [2024-10-14 03:50:32,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85952 states, 85951 states have (on average 1.3930029900757408) internal successors, (119730), 85951 states have internal predecessors, (119730), 0 states have call successors, (0), 0 states 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 03:50:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85952 states to 85952 states and 119730 transitions. [2024-10-14 03:50:32,996 INFO L78 Accepts]: Start accepts. Automaton has 85952 states and 119730 transitions. Word has length 78 [2024-10-14 03:50:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:32,996 INFO L471 AbstractCegarLoop]: Abstraction has 85952 states and 119730 transitions. [2024-10-14 03:50:32,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 03:50:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 85952 states and 119730 transitions. [2024-10-14 03:50:33,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 03:50:33,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:33,001 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 03:50:33,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 03:50:33,001 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:33,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:33,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1767675661, now seen corresponding path program 1 times [2024-10-14 03:50:33,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:33,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81120119] [2024-10-14 03:50:33,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:33,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:33,048 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 03:50:33,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:33,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81120119] [2024-10-14 03:50:33,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81120119] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:33,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:33,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:50:33,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404745943] [2024-10-14 03:50:33,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:33,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:50:33,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:33,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:50:33,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:50:33,050 INFO L87 Difference]: Start difference. First operand 85952 states and 119730 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 03:50:33,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:33,636 INFO L93 Difference]: Finished difference Result 183047 states and 254991 transitions. [2024-10-14 03:50:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:50:33,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 03:50:33,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:33,918 INFO L225 Difference]: With dead ends: 183047 [2024-10-14 03:50:33,918 INFO L226 Difference]: Without dead ends: 125207 [2024-10-14 03:50:34,002 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 03:50:34,002 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 183 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:34,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 421 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:50:34,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125207 states. [2024-10-14 03:50:35,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125207 to 124765. [2024-10-14 03:50:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124765 states, 124764 states have (on average 1.3956750344650701) internal successors, (174130), 124764 states have internal predecessors, (174130), 0 states have call successors, (0), 0 states 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 03:50:35,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124765 states to 124765 states and 174130 transitions. [2024-10-14 03:50:35,712 INFO L78 Accepts]: Start accepts. Automaton has 124765 states and 174130 transitions. Word has length 78 [2024-10-14 03:50:35,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:50:35,712 INFO L471 AbstractCegarLoop]: Abstraction has 124765 states and 174130 transitions. [2024-10-14 03:50:35,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 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 03:50:35,712 INFO L276 IsEmpty]: Start isEmpty. Operand 124765 states and 174130 transitions. [2024-10-14 03:50:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 03:50:35,719 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:50:35,719 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 03:50:35,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 03:50:35,719 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:50:35,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:50:35,720 INFO L85 PathProgramCache]: Analyzing trace with hash 237474817, now seen corresponding path program 1 times [2024-10-14 03:50:35,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:50:35,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558489067] [2024-10-14 03:50:35,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:50:35,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:50:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:50:35,774 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 03:50:35,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:50:35,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558489067] [2024-10-14 03:50:35,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558489067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:50:35,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:50:35,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:50:35,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27134615] [2024-10-14 03:50:35,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:50:35,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:50:35,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:50:35,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:50:35,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:50:35,776 INFO L87 Difference]: Start difference. First operand 124765 states and 174130 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 03:50:37,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:50:37,177 INFO L93 Difference]: Finished difference Result 247580 states and 345855 transitions. [2024-10-14 03:50:37,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:50:37,178 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 03:50:37,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:50:37,470 INFO L225 Difference]: With dead ends: 247580 [2024-10-14 03:50:37,470 INFO L226 Difference]: Without dead ends: 166144 [2024-10-14 03:50:37,557 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 03:50:37,557 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 172 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:50:37,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 356 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:50:37,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166144 states.