./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ccd47f3526eef69b5bf2f51fee8d66c64e4c81e1dda46c7d333fbe79bb4350dd --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:51:40,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:51:40,477 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:51:40,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:51:40,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:51:40,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:51:40,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:51:40,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:51:40,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:51:40,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:51:40,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:51:40,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:51:40,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:51:40,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:51:40,523 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:51:40,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:51:40,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:51:40,524 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:51:40,524 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:51:40,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:51:40,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:51:40,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:51:40,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:51:40,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:51:40,531 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:51:40,532 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:51:40,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:51:40,532 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:51:40,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:51:40,533 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:51:40,533 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:51:40,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:51:40,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:51:40,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:51:40,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:51:40,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:51:40,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:51:40,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:51:40,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:51:40,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:51:40,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:51:40,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:51:40,537 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccd47f3526eef69b5bf2f51fee8d66c64e4c81e1dda46c7d333fbe79bb4350dd [2024-10-14 03:51:40,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:51:40,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:51:40,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:51:40,830 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:51:40,830 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:51:40,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-14 03:51:42,321 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:51:42,572 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:51:42,573 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-14 03:51:42,585 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d996aaff/41d807d9f6404e1c99658c8b75169908/FLAGd6baf5228 [2024-10-14 03:51:42,895 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d996aaff/41d807d9f6404e1c99658c8b75169908 [2024-10-14 03:51:42,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:51:42,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:51:42,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:51:42,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:51:42,907 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:51:42,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:51:42" (1/1) ... [2024-10-14 03:51:42,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73533fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:42, skipping insertion in model container [2024-10-14 03:51:42,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:51:42" (1/1) ... [2024-10-14 03:51:42,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:51:43,227 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-10-14 03:51:43,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:51:43,310 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:51:43,355 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-10-14 03:51:43,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:51:43,459 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:51:43,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43 WrapperNode [2024-10-14 03:51:43,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:51:43,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:51:43,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:51:43,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:51:43,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,541 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 881 [2024-10-14 03:51:43,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:51:43,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:51:43,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:51:43,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:51:43,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,590 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 03:51:43,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:51:43,646 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:51:43,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:51:43,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:51:43,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (1/1) ... [2024-10-14 03:51:43,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:51:43,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:51:43,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 03:51:43,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 03:51:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:51:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:51:43,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:51:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:51:43,893 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:51:43,895 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:51:44,655 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-10-14 03:51:44,655 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:51:44,707 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:51:44,708 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:51:44,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:51:44 BoogieIcfgContainer [2024-10-14 03:51:44,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:51:44,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:51:44,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:51:44,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:51:44,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:51:42" (1/3) ... [2024-10-14 03:51:44,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed4abe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:51:44, skipping insertion in model container [2024-10-14 03:51:44,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:51:43" (2/3) ... [2024-10-14 03:51:44,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed4abe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:51:44, skipping insertion in model container [2024-10-14 03:51:44,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:51:44" (3/3) ... [2024-10-14 03:51:44,721 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-14 03:51:44,740 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:51:44,740 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:51:44,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:51:44,828 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;@5da69f4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:51:44,829 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:51:44,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:44,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-14 03:51:44,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:44,846 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:44,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:44,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:44,851 INFO L85 PathProgramCache]: Analyzing trace with hash -474104543, now seen corresponding path program 1 times [2024-10-14 03:51:44,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:44,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665903664] [2024-10-14 03:51:44,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:44,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:45,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:45,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665903664] [2024-10-14 03:51:45,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665903664] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:45,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:45,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:51:45,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387801644] [2024-10-14 03:51:45,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:45,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:51:45,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:45,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:51:45,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:45,687 INFO L87 Difference]: Start difference. First operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:46,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:46,009 INFO L93 Difference]: Finished difference Result 860 states and 1396 transitions. [2024-10-14 03:51:46,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:51:46,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-14 03:51:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:46,034 INFO L225 Difference]: With dead ends: 860 [2024-10-14 03:51:46,034 INFO L226 Difference]: Without dead ends: 747 [2024-10-14 03:51:46,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:51:46,043 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 2247 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:46,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2247 Valid, 2297 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:46,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-10-14 03:51:46,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 328. [2024-10-14 03:51:46,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.5015290519877675) internal successors, (491), 327 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:46,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 491 transitions. [2024-10-14 03:51:46,123 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 491 transitions. Word has length 80 [2024-10-14 03:51:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:46,125 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 491 transitions. [2024-10-14 03:51:46,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 491 transitions. [2024-10-14 03:51:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-14 03:51:46,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:46,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:46,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:51:46,130 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:46,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:46,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2091304489, now seen corresponding path program 1 times [2024-10-14 03:51:46,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:46,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651829662] [2024-10-14 03:51:46,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:46,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:46,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:46,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651829662] [2024-10-14 03:51:46,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651829662] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:46,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:46,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:51:46,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694814693] [2024-10-14 03:51:46,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:46,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:51:46,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:46,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:51:46,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:46,536 INFO L87 Difference]: Start difference. First operand 328 states and 491 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:46,813 INFO L93 Difference]: Finished difference Result 1424 states and 2198 transitions. [2024-10-14 03:51:46,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:51:46,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-14 03:51:46,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:46,819 INFO L225 Difference]: With dead ends: 1424 [2024-10-14 03:51:46,819 INFO L226 Difference]: Without dead ends: 1176 [2024-10-14 03:51:46,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:46,825 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 1127 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:46,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1779 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:46,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-10-14 03:51:46,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1168. [2024-10-14 03:51:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1167 states have (on average 1.5389888603256212) internal successors, (1796), 1167 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1796 transitions. [2024-10-14 03:51:46,870 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1796 transitions. Word has length 81 [2024-10-14 03:51:46,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:46,871 INFO L471 AbstractCegarLoop]: Abstraction has 1168 states and 1796 transitions. [2024-10-14 03:51:46,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:46,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1796 transitions. [2024-10-14 03:51:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 03:51:46,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:46,880 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:46,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:51:46,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:46,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:46,881 INFO L85 PathProgramCache]: Analyzing trace with hash -680835100, now seen corresponding path program 1 times [2024-10-14 03:51:46,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:46,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961977899] [2024-10-14 03:51:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:46,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:47,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:47,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961977899] [2024-10-14 03:51:47,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961977899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:47,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:47,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:47,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046006597] [2024-10-14 03:51:47,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:47,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:47,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:47,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:47,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:47,064 INFO L87 Difference]: Start difference. First operand 1168 states and 1796 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:47,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:47,368 INFO L93 Difference]: Finished difference Result 3225 states and 5016 transitions. [2024-10-14 03:51:47,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:47,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 03:51:47,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:47,377 INFO L225 Difference]: With dead ends: 3225 [2024-10-14 03:51:47,378 INFO L226 Difference]: Without dead ends: 2099 [2024-10-14 03:51:47,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:47,383 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1231 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:47,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 288 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:51:47,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2024-10-14 03:51:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2097. [2024-10-14 03:51:47,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2097 states, 2096 states have (on average 1.5481870229007633) internal successors, (3245), 2096 states have internal predecessors, (3245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:47,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 3245 transitions. [2024-10-14 03:51:47,419 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 3245 transitions. Word has length 82 [2024-10-14 03:51:47,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:47,419 INFO L471 AbstractCegarLoop]: Abstraction has 2097 states and 3245 transitions. [2024-10-14 03:51:47,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:47,420 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 3245 transitions. [2024-10-14 03:51:47,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 03:51:47,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:47,422 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:47,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:51:47,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:47,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:47,423 INFO L85 PathProgramCache]: Analyzing trace with hash -107615691, now seen corresponding path program 1 times [2024-10-14 03:51:47,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:47,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125510873] [2024-10-14 03:51:47,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:47,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:47,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:47,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:47,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125510873] [2024-10-14 03:51:47,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125510873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:47,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:47,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:47,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413299287] [2024-10-14 03:51:47,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:47,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:47,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:47,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:47,636 INFO L87 Difference]: Start difference. First operand 2097 states and 3245 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:47,916 INFO L93 Difference]: Finished difference Result 5895 states and 9183 transitions. [2024-10-14 03:51:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:47,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 03:51:47,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:47,929 INFO L225 Difference]: With dead ends: 5895 [2024-10-14 03:51:47,929 INFO L226 Difference]: Without dead ends: 3856 [2024-10-14 03:51:47,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:47,937 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1191 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:47,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 292 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:47,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2024-10-14 03:51:47,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 3854. [2024-10-14 03:51:47,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 1.5491824552296911) internal successors, (5969), 3853 states have internal predecessors, (5969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:48,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 5969 transitions. [2024-10-14 03:51:48,006 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 5969 transitions. Word has length 82 [2024-10-14 03:51:48,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:48,006 INFO L471 AbstractCegarLoop]: Abstraction has 3854 states and 5969 transitions. [2024-10-14 03:51:48,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:48,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 5969 transitions. [2024-10-14 03:51:48,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 03:51:48,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:48,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:48,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:51:48,010 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:48,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash 565371462, now seen corresponding path program 1 times [2024-10-14 03:51:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:48,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235810624] [2024-10-14 03:51:48,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:48,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:48,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:48,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:48,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235810624] [2024-10-14 03:51:48,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235810624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:48,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:48,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:48,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463092191] [2024-10-14 03:51:48,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:48,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:48,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:48,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:48,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:48,179 INFO L87 Difference]: Start difference. First operand 3854 states and 5969 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:48,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:48,481 INFO L93 Difference]: Finished difference Result 10979 states and 17064 transitions. [2024-10-14 03:51:48,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:48,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 03:51:48,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:48,511 INFO L225 Difference]: With dead ends: 10979 [2024-10-14 03:51:48,511 INFO L226 Difference]: Without dead ends: 7206 [2024-10-14 03:51:48,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:48,522 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1153 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:48,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 294 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:48,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7206 states. [2024-10-14 03:51:48,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7206 to 7204. [2024-10-14 03:51:48,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7204 states, 7203 states have (on average 1.545328335415799) internal successors, (11131), 7203 states have internal predecessors, (11131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7204 states to 7204 states and 11131 transitions. [2024-10-14 03:51:48,685 INFO L78 Accepts]: Start accepts. Automaton has 7204 states and 11131 transitions. Word has length 82 [2024-10-14 03:51:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:48,685 INFO L471 AbstractCegarLoop]: Abstraction has 7204 states and 11131 transitions. [2024-10-14 03:51:48,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 7204 states and 11131 transitions. [2024-10-14 03:51:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 03:51:48,690 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:48,690 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:48,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:51:48,691 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:48,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:48,691 INFO L85 PathProgramCache]: Analyzing trace with hash -563630057, now seen corresponding path program 1 times [2024-10-14 03:51:48,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:48,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349852746] [2024-10-14 03:51:48,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:48,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:48,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:48,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:48,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349852746] [2024-10-14 03:51:48,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349852746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:48,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:48,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:48,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100520570] [2024-10-14 03:51:48,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:48,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:48,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:48,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:48,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:48,868 INFO L87 Difference]: Start difference. First operand 7204 states and 11131 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:49,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:49,177 INFO L93 Difference]: Finished difference Result 20742 states and 32106 transitions. [2024-10-14 03:51:49,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:49,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 03:51:49,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:49,230 INFO L225 Difference]: With dead ends: 20742 [2024-10-14 03:51:49,231 INFO L226 Difference]: Without dead ends: 13649 [2024-10-14 03:51:49,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:49,246 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1115 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:49,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 296 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:49,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13649 states. [2024-10-14 03:51:49,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13649 to 13647. [2024-10-14 03:51:49,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13647 states, 13646 states have (on average 1.5395720357613953) internal successors, (21009), 13646 states have internal predecessors, (21009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:49,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13647 states to 13647 states and 21009 transitions. [2024-10-14 03:51:49,565 INFO L78 Accepts]: Start accepts. Automaton has 13647 states and 21009 transitions. Word has length 82 [2024-10-14 03:51:49,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:49,565 INFO L471 AbstractCegarLoop]: Abstraction has 13647 states and 21009 transitions. [2024-10-14 03:51:49,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:49,566 INFO L276 IsEmpty]: Start isEmpty. Operand 13647 states and 21009 transitions. [2024-10-14 03:51:49,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 03:51:49,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:49,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:49,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:51:49,574 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:49,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:49,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1335241816, now seen corresponding path program 1 times [2024-10-14 03:51:49,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:49,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621670589] [2024-10-14 03:51:49,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:49,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:49,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:49,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621670589] [2024-10-14 03:51:49,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621670589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:49,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:49,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:49,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213412151] [2024-10-14 03:51:49,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:49,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:49,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:49,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:49,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:49,783 INFO L87 Difference]: Start difference. First operand 13647 states and 21009 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:50,131 INFO L93 Difference]: Finished difference Result 39951 states and 61617 transitions. [2024-10-14 03:51:50,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:50,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-14 03:51:50,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:50,193 INFO L225 Difference]: With dead ends: 39951 [2024-10-14 03:51:50,193 INFO L226 Difference]: Without dead ends: 26449 [2024-10-14 03:51:50,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:50,217 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1101 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:50,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 305 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:51:50,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26449 states. [2024-10-14 03:51:50,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26449 to 26447. [2024-10-14 03:51:50,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26447 states, 26446 states have (on average 1.5359600695757392) internal successors, (40620), 26446 states have internal predecessors, (40620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:50,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26447 states to 26447 states and 40620 transitions. [2024-10-14 03:51:50,755 INFO L78 Accepts]: Start accepts. Automaton has 26447 states and 40620 transitions. Word has length 82 [2024-10-14 03:51:50,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:50,755 INFO L471 AbstractCegarLoop]: Abstraction has 26447 states and 40620 transitions. [2024-10-14 03:51:50,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:50,756 INFO L276 IsEmpty]: Start isEmpty. Operand 26447 states and 40620 transitions. [2024-10-14 03:51:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 03:51:50,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:50,761 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:50,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:51:50,762 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:50,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:50,762 INFO L85 PathProgramCache]: Analyzing trace with hash -375543261, now seen corresponding path program 1 times [2024-10-14 03:51:50,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:50,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322114350] [2024-10-14 03:51:50,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:50,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:51,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:51,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:51,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322114350] [2024-10-14 03:51:51,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322114350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:51,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:51,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:51:51,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580478190] [2024-10-14 03:51:51,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:51,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:51:51,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:51,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:51:51,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:51:51,382 INFO L87 Difference]: Start difference. First operand 26447 states and 40620 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:51,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:51,490 INFO L93 Difference]: Finished difference Result 27089 states and 41581 transitions. [2024-10-14 03:51:51,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:51:51,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-14 03:51:51,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:51,546 INFO L225 Difference]: With dead ends: 27089 [2024-10-14 03:51:51,546 INFO L226 Difference]: Without dead ends: 27087 [2024-10-14 03:51:51,559 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 03:51:51,561 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 0 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:51,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1157 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:51,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27087 states. [2024-10-14 03:51:51,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27087 to 27087. [2024-10-14 03:51:51,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27087 states, 27086 states have (on average 1.5232961677619434) internal successors, (41260), 27086 states have internal predecessors, (41260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27087 states to 27087 states and 41260 transitions. [2024-10-14 03:51:52,030 INFO L78 Accepts]: Start accepts. Automaton has 27087 states and 41260 transitions. Word has length 83 [2024-10-14 03:51:52,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:52,030 INFO L471 AbstractCegarLoop]: Abstraction has 27087 states and 41260 transitions. [2024-10-14 03:51:52,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:52,031 INFO L276 IsEmpty]: Start isEmpty. Operand 27087 states and 41260 transitions. [2024-10-14 03:51:52,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:51:52,039 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:52,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:52,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:51:52,040 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:52,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:52,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1521514654, now seen corresponding path program 1 times [2024-10-14 03:51:52,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:52,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251128340] [2024-10-14 03:51:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:52,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:52,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:52,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:52,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251128340] [2024-10-14 03:51:52,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251128340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:52,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:52,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:51:52,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654353018] [2024-10-14 03:51:52,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:52,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:51:52,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:52,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:51:52,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:51:52,571 INFO L87 Difference]: Start difference. First operand 27087 states and 41260 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:53,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:53,497 INFO L93 Difference]: Finished difference Result 68239 states and 103252 transitions. [2024-10-14 03:51:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:51:53,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-14 03:51:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:53,582 INFO L225 Difference]: With dead ends: 68239 [2024-10-14 03:51:53,582 INFO L226 Difference]: Without dead ends: 41716 [2024-10-14 03:51:53,623 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 03:51:53,624 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 886 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:53,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 982 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 03:51:53,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41716 states. [2024-10-14 03:51:54,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41716 to 27169. [2024-10-14 03:51:54,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27169 states, 27168 states have (on average 1.5219743816254416) internal successors, (41349), 27168 states have internal predecessors, (41349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:54,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27169 states to 27169 states and 41349 transitions. [2024-10-14 03:51:54,503 INFO L78 Accepts]: Start accepts. Automaton has 27169 states and 41349 transitions. Word has length 84 [2024-10-14 03:51:54,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:54,504 INFO L471 AbstractCegarLoop]: Abstraction has 27169 states and 41349 transitions. [2024-10-14 03:51:54,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:54,505 INFO L276 IsEmpty]: Start isEmpty. Operand 27169 states and 41349 transitions. [2024-10-14 03:51:54,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:51:54,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:54,515 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:54,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:51:54,516 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:54,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:54,516 INFO L85 PathProgramCache]: Analyzing trace with hash 462552190, now seen corresponding path program 1 times [2024-10-14 03:51:54,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:54,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312793977] [2024-10-14 03:51:54,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:54,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:54,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:54,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312793977] [2024-10-14 03:51:54,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312793977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:54,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:54,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:51:54,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577058252] [2024-10-14 03:51:54,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:54,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:51:54,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:54,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:51:54,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:51:54,948 INFO L87 Difference]: Start difference. First operand 27169 states and 41349 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:55,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:55,303 INFO L93 Difference]: Finished difference Result 76389 states and 116023 transitions. [2024-10-14 03:51:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:51:55,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-10-14 03:51:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:55,430 INFO L225 Difference]: With dead ends: 76389 [2024-10-14 03:51:55,431 INFO L226 Difference]: Without dead ends: 50147 [2024-10-14 03:51:55,451 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 03:51:55,452 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 242 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:55,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 717 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50147 states. [2024-10-14 03:51:56,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50147 to 50145. [2024-10-14 03:51:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50145 states, 50144 states have (on average 1.5093530631780472) internal successors, (75685), 50144 states have internal predecessors, (75685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50145 states to 50145 states and 75685 transitions. [2024-10-14 03:51:56,369 INFO L78 Accepts]: Start accepts. Automaton has 50145 states and 75685 transitions. Word has length 84 [2024-10-14 03:51:56,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:56,369 INFO L471 AbstractCegarLoop]: Abstraction has 50145 states and 75685 transitions. [2024-10-14 03:51:56,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 50145 states and 75685 transitions. [2024-10-14 03:51:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:51:56,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:56,380 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:56,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:51:56,381 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:56,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:56,381 INFO L85 PathProgramCache]: Analyzing trace with hash -887764282, now seen corresponding path program 1 times [2024-10-14 03:51:56,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:56,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642313933] [2024-10-14 03:51:56,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:56,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:56,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:56,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:56,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642313933] [2024-10-14 03:51:56,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642313933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:56,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:56,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:51:56,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444667954] [2024-10-14 03:51:56,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:56,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:51:56,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:56,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:51:56,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:56,496 INFO L87 Difference]: Start difference. First operand 50145 states and 75685 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:56,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:56,873 INFO L93 Difference]: Finished difference Result 108249 states and 163254 transitions. [2024-10-14 03:51:56,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:51:56,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:51:56,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:56,981 INFO L225 Difference]: With dead ends: 108249 [2024-10-14 03:51:56,981 INFO L226 Difference]: Without dead ends: 66215 [2024-10-14 03:51:57,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:51:57,021 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 201 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:57,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 721 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:51:57,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66215 states. [2024-10-14 03:51:57,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66215 to 65737. [2024-10-14 03:51:57,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65737 states, 65736 states have (on average 1.4903705732018986) internal successors, (97971), 65736 states have internal predecessors, (97971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:58,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65737 states to 65737 states and 97971 transitions. [2024-10-14 03:51:58,047 INFO L78 Accepts]: Start accepts. Automaton has 65737 states and 97971 transitions. Word has length 85 [2024-10-14 03:51:58,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:51:58,047 INFO L471 AbstractCegarLoop]: Abstraction has 65737 states and 97971 transitions. [2024-10-14 03:51:58,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:58,048 INFO L276 IsEmpty]: Start isEmpty. Operand 65737 states and 97971 transitions. [2024-10-14 03:51:58,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:51:58,058 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:51:58,058 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:51:58,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:51:58,059 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:51:58,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:51:58,060 INFO L85 PathProgramCache]: Analyzing trace with hash 644137702, now seen corresponding path program 1 times [2024-10-14 03:51:58,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:51:58,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959079137] [2024-10-14 03:51:58,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:51:58,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:51:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:51:58,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:51:58,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:51:58,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959079137] [2024-10-14 03:51:58,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959079137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:51:58,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:51:58,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:51:58,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906698691] [2024-10-14 03:51:58,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:51:58,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:51:58,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:51:58,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:51:58,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:51:58,258 INFO L87 Difference]: Start difference. First operand 65737 states and 97971 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:51:59,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:51:59,014 INFO L93 Difference]: Finished difference Result 156403 states and 234127 transitions. [2024-10-14 03:51:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:51:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:51:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:51:59,244 INFO L225 Difference]: With dead ends: 156403 [2024-10-14 03:51:59,244 INFO L226 Difference]: Without dead ends: 131313 [2024-10-14 03:51:59,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:51:59,314 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1656 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:51:59,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 1920 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:51:59,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131313 states. [2024-10-14 03:52:00,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131313 to 90038. [2024-10-14 03:52:00,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90038 states, 90037 states have (on average 1.49025400668614) internal successors, (134178), 90037 states have internal predecessors, (134178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:00,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90038 states to 90038 states and 134178 transitions. [2024-10-14 03:52:00,866 INFO L78 Accepts]: Start accepts. Automaton has 90038 states and 134178 transitions. Word has length 85 [2024-10-14 03:52:00,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:00,867 INFO L471 AbstractCegarLoop]: Abstraction has 90038 states and 134178 transitions. [2024-10-14 03:52:00,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 90038 states and 134178 transitions. [2024-10-14 03:52:00,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:00,875 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:00,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:00,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:52:00,875 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:00,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:00,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2146135911, now seen corresponding path program 1 times [2024-10-14 03:52:00,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:00,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851336321] [2024-10-14 03:52:00,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:00,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:01,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:01,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851336321] [2024-10-14 03:52:01,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851336321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:01,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:01,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:01,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104254290] [2024-10-14 03:52:01,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:01,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:01,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:01,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:01,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:01,322 INFO L87 Difference]: Start difference. First operand 90038 states and 134178 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:01,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:01,905 INFO L93 Difference]: Finished difference Result 178133 states and 264877 transitions. [2024-10-14 03:52:01,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:01,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:52:01,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:02,077 INFO L225 Difference]: With dead ends: 178133 [2024-10-14 03:52:02,077 INFO L226 Difference]: Without dead ends: 110121 [2024-10-14 03:52:02,147 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 03:52:02,148 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 191 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:02,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 561 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:02,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110121 states. [2024-10-14 03:52:03,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110121 to 109320. [2024-10-14 03:52:03,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109320 states, 109319 states have (on average 1.4677137551569261) internal successors, (160449), 109319 states have internal predecessors, (160449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:04,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109320 states to 109320 states and 160449 transitions. [2024-10-14 03:52:04,459 INFO L78 Accepts]: Start accepts. Automaton has 109320 states and 160449 transitions. Word has length 85 [2024-10-14 03:52:04,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:04,460 INFO L471 AbstractCegarLoop]: Abstraction has 109320 states and 160449 transitions. [2024-10-14 03:52:04,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:04,460 INFO L276 IsEmpty]: Start isEmpty. Operand 109320 states and 160449 transitions. [2024-10-14 03:52:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:04,470 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:04,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:04,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:52:04,471 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:04,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:04,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1390110714, now seen corresponding path program 1 times [2024-10-14 03:52:04,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:04,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106645176] [2024-10-14 03:52:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:04,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:04,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:04,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:04,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106645176] [2024-10-14 03:52:04,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106645176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:04,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:04,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:04,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596874281] [2024-10-14 03:52:04,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:04,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:04,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:04,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:04,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:04,540 INFO L87 Difference]: Start difference. First operand 109320 states and 160449 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:04,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:04,981 INFO L93 Difference]: Finished difference Result 191474 states and 280150 transitions. [2024-10-14 03:52:04,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:04,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:52:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:05,170 INFO L225 Difference]: With dead ends: 191474 [2024-10-14 03:52:05,170 INFO L226 Difference]: Without dead ends: 126166 [2024-10-14 03:52:05,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:05,255 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 179 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:05,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 559 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:05,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126166 states. [2024-10-14 03:52:07,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126166 to 125045. [2024-10-14 03:52:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125045 states, 125044 states have (on average 1.4422523271808323) internal successors, (180345), 125044 states have internal predecessors, (180345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:07,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125045 states to 125045 states and 180345 transitions. [2024-10-14 03:52:07,372 INFO L78 Accepts]: Start accepts. Automaton has 125045 states and 180345 transitions. Word has length 85 [2024-10-14 03:52:07,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:07,373 INFO L471 AbstractCegarLoop]: Abstraction has 125045 states and 180345 transitions. [2024-10-14 03:52:07,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:07,373 INFO L276 IsEmpty]: Start isEmpty. Operand 125045 states and 180345 transitions. [2024-10-14 03:52:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:07,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:07,388 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:07,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:52:07,388 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:07,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:07,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1323205915, now seen corresponding path program 1 times [2024-10-14 03:52:07,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:07,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655377916] [2024-10-14 03:52:07,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:07,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:07,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:07,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655377916] [2024-10-14 03:52:07,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655377916] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:07,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:07,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:07,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955443508] [2024-10-14 03:52:07,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:07,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:07,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:07,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:07,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:07,476 INFO L87 Difference]: Start difference. First operand 125045 states and 180345 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:08,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:08,161 INFO L93 Difference]: Finished difference Result 176540 states and 253492 transitions. [2024-10-14 03:52:08,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:08,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:52:08,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:08,367 INFO L225 Difference]: With dead ends: 176540 [2024-10-14 03:52:08,368 INFO L226 Difference]: Without dead ends: 128802 [2024-10-14 03:52:08,439 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 03:52:08,439 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 171 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:08,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 560 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128802 states. [2024-10-14 03:52:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128802 to 114660. [2024-10-14 03:52:10,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114660 states, 114659 states have (on average 1.4196356151719447) internal successors, (162774), 114659 states have internal predecessors, (162774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114660 states to 114660 states and 162774 transitions. [2024-10-14 03:52:10,874 INFO L78 Accepts]: Start accepts. Automaton has 114660 states and 162774 transitions. Word has length 85 [2024-10-14 03:52:10,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:10,874 INFO L471 AbstractCegarLoop]: Abstraction has 114660 states and 162774 transitions. [2024-10-14 03:52:10,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:10,875 INFO L276 IsEmpty]: Start isEmpty. Operand 114660 states and 162774 transitions. [2024-10-14 03:52:10,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:10,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:10,884 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:10,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:52:10,884 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:10,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:10,885 INFO L85 PathProgramCache]: Analyzing trace with hash 450218119, now seen corresponding path program 1 times [2024-10-14 03:52:10,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:10,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674541609] [2024-10-14 03:52:10,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:10,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:10,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:10,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674541609] [2024-10-14 03:52:10,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674541609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:10,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:10,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:10,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908848302] [2024-10-14 03:52:10,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:10,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:10,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:10,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:10,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:10,966 INFO L87 Difference]: Start difference. First operand 114660 states and 162774 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:12,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:12,461 INFO L93 Difference]: Finished difference Result 304860 states and 432279 transitions. [2024-10-14 03:52:12,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:12,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:52:12,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:12,817 INFO L225 Difference]: With dead ends: 304860 [2024-10-14 03:52:12,817 INFO L226 Difference]: Without dead ends: 198283 [2024-10-14 03:52:12,882 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 03:52:12,884 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 207 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:12,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 577 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:13,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198283 states. [2024-10-14 03:52:15,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198283 to 197880. [2024-10-14 03:52:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197880 states, 197879 states have (on average 1.404130807210467) internal successors, (277848), 197879 states have internal predecessors, (277848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197880 states to 197880 states and 277848 transitions. [2024-10-14 03:52:15,980 INFO L78 Accepts]: Start accepts. Automaton has 197880 states and 277848 transitions. Word has length 85 [2024-10-14 03:52:15,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:15,981 INFO L471 AbstractCegarLoop]: Abstraction has 197880 states and 277848 transitions. [2024-10-14 03:52:15,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:15,981 INFO L276 IsEmpty]: Start isEmpty. Operand 197880 states and 277848 transitions. [2024-10-14 03:52:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:15,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:15,994 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:15,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:52:15,994 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:15,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:15,995 INFO L85 PathProgramCache]: Analyzing trace with hash 478289799, now seen corresponding path program 1 times [2024-10-14 03:52:15,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:15,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553066020] [2024-10-14 03:52:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:15,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:16,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:16,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553066020] [2024-10-14 03:52:16,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553066020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:16,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:16,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:16,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343899540] [2024-10-14 03:52:16,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:16,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:16,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:16,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:16,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:16,161 INFO L87 Difference]: Start difference. First operand 197880 states and 277848 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:18,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:18,162 INFO L93 Difference]: Finished difference Result 383534 states and 541928 transitions. [2024-10-14 03:52:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:18,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:52:18,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:18,747 INFO L225 Difference]: With dead ends: 383534 [2024-10-14 03:52:18,747 INFO L226 Difference]: Without dead ends: 333231 [2024-10-14 03:52:18,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:52:18,860 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1732 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:18,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 1832 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:52:19,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333231 states. [2024-10-14 03:52:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333231 to 226202. [2024-10-14 03:52:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226202 states, 226201 states have (on average 1.4060503711301011) internal successors, (318050), 226201 states have internal predecessors, (318050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226202 states to 226202 states and 318050 transitions. [2024-10-14 03:52:23,408 INFO L78 Accepts]: Start accepts. Automaton has 226202 states and 318050 transitions. Word has length 85 [2024-10-14 03:52:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:23,408 INFO L471 AbstractCegarLoop]: Abstraction has 226202 states and 318050 transitions. [2024-10-14 03:52:23,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 226202 states and 318050 transitions. [2024-10-14 03:52:23,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:23,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:23,426 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:23,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:52:23,426 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:23,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:23,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1379291066, now seen corresponding path program 1 times [2024-10-14 03:52:23,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:23,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162264576] [2024-10-14 03:52:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:23,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:23,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:23,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162264576] [2024-10-14 03:52:23,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162264576] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:23,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:23,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:23,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733046535] [2024-10-14 03:52:23,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:23,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:23,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:23,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:23,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:23,601 INFO L87 Difference]: Start difference. First operand 226202 states and 318050 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:25,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:25,643 INFO L93 Difference]: Finished difference Result 398287 states and 562039 transitions. [2024-10-14 03:52:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:25,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:52:25,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:26,288 INFO L225 Difference]: With dead ends: 398287 [2024-10-14 03:52:26,288 INFO L226 Difference]: Without dead ends: 365516 [2024-10-14 03:52:26,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:52:26,404 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 1847 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1847 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:26,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1847 Valid, 1880 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:52:26,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365516 states. [2024-10-14 03:52:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365516 to 242731. [2024-10-14 03:52:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242731 states, 242730 states have (on average 1.407428006426894) internal successors, (341625), 242730 states have internal predecessors, (341625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242731 states to 242731 states and 341625 transitions. [2024-10-14 03:52:31,179 INFO L78 Accepts]: Start accepts. Automaton has 242731 states and 341625 transitions. Word has length 85 [2024-10-14 03:52:31,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:31,180 INFO L471 AbstractCegarLoop]: Abstraction has 242731 states and 341625 transitions. [2024-10-14 03:52:31,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:31,180 INFO L276 IsEmpty]: Start isEmpty. Operand 242731 states and 341625 transitions. [2024-10-14 03:52:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-14 03:52:31,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:31,191 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:31,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:52:31,191 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:31,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:31,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2093367941, now seen corresponding path program 1 times [2024-10-14 03:52:31,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:31,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846688106] [2024-10-14 03:52:31,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:31,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:31,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:31,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846688106] [2024-10-14 03:52:31,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846688106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:31,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:31,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:31,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479988914] [2024-10-14 03:52:31,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:31,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:31,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:31,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:31,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:31,349 INFO L87 Difference]: Start difference. First operand 242731 states and 341625 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:33,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:33,511 INFO L93 Difference]: Finished difference Result 394624 states and 556366 transitions. [2024-10-14 03:52:33,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:33,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-10-14 03:52:33,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:34,175 INFO L225 Difference]: With dead ends: 394624 [2024-10-14 03:52:34,175 INFO L226 Difference]: Without dead ends: 379961 [2024-10-14 03:52:34,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:52:34,289 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 1676 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:34,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 2125 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:52:34,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379961 states.