./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.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 561889d92df45f99e756a59f568aff549bcbf1af3442520c3f6faf4dbc996ed6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:04:33,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:04:33,490 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:04:33,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:04:33,496 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:04:33,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:04:33,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:04:33,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:04:33,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:04:33,520 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:04:33,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:04:33,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:04:33,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:04:33,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:04:33,522 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:04:33,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:04:33,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:04:33,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:04:33,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:04:33,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:04:33,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:04:33,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:04:33,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:04:33,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:04:33,528 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:04:33,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:04:33,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:04:33,528 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:04:33,529 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:04:33,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:04:33,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:04:33,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:04:33,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:04:33,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:04:33,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:04:33,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:04:33,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:04:33,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:04:33,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:04:33,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:04:33,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:04:33,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:04:33,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 561889d92df45f99e756a59f568aff549bcbf1af3442520c3f6faf4dbc996ed6 [2024-11-18 15:04:33,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:04:33,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:04:33,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:04:33,832 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:04:33,833 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:04:33,834 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-18 15:04:35,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:04:35,470 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:04:35,471 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-18 15:04:35,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb16018d/21df2b7f781c4cb4bccbe0e140280289/FLAG43251c730 [2024-11-18 15:04:35,507 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb16018d/21df2b7f781c4cb4bccbe0e140280289 [2024-11-18 15:04:35,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:04:35,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:04:35,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:04:35,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:04:35,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:04:35,518 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:35,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca815ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35, skipping insertion in model container [2024-11-18 15:04:35,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:35,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:04:35,827 WARN L250 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.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7180,7193] [2024-11-18 15:04:35,855 WARN L250 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.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9491,9504] [2024-11-18 15:04:35,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:04:35,881 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:04:35,930 WARN L250 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.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7180,7193] [2024-11-18 15:04:35,939 WARN L250 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.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9491,9504] [2024-11-18 15:04:35,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:04:35,972 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:04:35,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35 WrapperNode [2024-11-18 15:04:35,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:04:35,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:04:35,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:04:35,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:04:35,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:35,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,029 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 505 [2024-11-18 15:04:36,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:04:36,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:04:36,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:04:36,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:04:36,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,049 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,070 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]. [2024-11-18 15:04:36,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:04:36,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:04:36,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:04:36,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:04:36,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (1/1) ... [2024-11-18 15:04:36,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:04:36,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:04:36,142 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) [2024-11-18 15:04:36,146 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 [2024-11-18 15:04:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:04:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:04:36,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:04:36,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:04:36,335 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:04:36,337 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:04:36,795 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-18 15:04:36,795 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:04:36,813 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:04:36,813 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:04:36,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:04:36 BoogieIcfgContainer [2024-11-18 15:04:36,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:04:36,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:04:36,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:04:36,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:04:36,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:04:35" (1/3) ... [2024-11-18 15:04:36,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727733a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:04:36, skipping insertion in model container [2024-11-18 15:04:36,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:04:35" (2/3) ... [2024-11-18 15:04:36,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727733a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:04:36, skipping insertion in model container [2024-11-18 15:04:36,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:04:36" (3/3) ... [2024-11-18 15:04:36,822 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-18 15:04:36,837 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:04:36,837 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 15:04:36,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:04:36,945 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;@7f48ac66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:04:36,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 15:04:36,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 103 states have (on average 1.7572815533980584) internal successors, (181), 105 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:36,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-18 15:04:36,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:36,963 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] [2024-11-18 15:04:36,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:36,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:36,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1038847250, now seen corresponding path program 1 times [2024-11-18 15:04:36,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:36,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678757984] [2024-11-18 15:04:36,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:36,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:37,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:37,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678757984] [2024-11-18 15:04:37,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678757984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:37,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:37,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:04:37,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140471961] [2024-11-18 15:04:37,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:37,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:04:37,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:37,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:04:37,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:04:37,570 INFO L87 Difference]: Start difference. First operand has 106 states, 103 states have (on average 1.7572815533980584) internal successors, (181), 105 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:37,840 INFO L93 Difference]: Finished difference Result 416 states and 663 transitions. [2024-11-18 15:04:37,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 15:04:37,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-18 15:04:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:37,856 INFO L225 Difference]: With dead ends: 416 [2024-11-18 15:04:37,857 INFO L226 Difference]: Without dead ends: 353 [2024-11-18 15:04:37,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:04:37,864 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 596 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:37,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 768 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:04:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-18 15:04:37,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 155. [2024-11-18 15:04:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.4313725490196079) internal successors, (219), 154 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:37,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 219 transitions. [2024-11-18 15:04:37,914 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 219 transitions. Word has length 48 [2024-11-18 15:04:37,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:37,915 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 219 transitions. [2024-11-18 15:04:37,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:37,915 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 219 transitions. [2024-11-18 15:04:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-18 15:04:37,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:37,917 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] [2024-11-18 15:04:37,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:04:37,918 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:37,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1964840261, now seen corresponding path program 1 times [2024-11-18 15:04:37,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:37,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223588848] [2024-11-18 15:04:37,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:37,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:38,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:38,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223588848] [2024-11-18 15:04:38,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223588848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:38,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:38,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:04:38,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999659829] [2024-11-18 15:04:38,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:38,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:04:38,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:38,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:04:38,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:04:38,029 INFO L87 Difference]: Start difference. First operand 155 states and 219 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:38,088 INFO L93 Difference]: Finished difference Result 244 states and 352 transitions. [2024-11-18 15:04:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:04:38,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-11-18 15:04:38,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:38,109 INFO L225 Difference]: With dead ends: 244 [2024-11-18 15:04:38,109 INFO L226 Difference]: Without dead ends: 159 [2024-11-18 15:04:38,109 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 [2024-11-18 15:04:38,114 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 73 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:38,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 301 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:04:38,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-18 15:04:38,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2024-11-18 15:04:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 1.4193548387096775) internal successors, (220), 156 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 220 transitions. [2024-11-18 15:04:38,137 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 220 transitions. Word has length 49 [2024-11-18 15:04:38,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:38,138 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 220 transitions. [2024-11-18 15:04:38,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,138 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 220 transitions. [2024-11-18 15:04:38,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-18 15:04:38,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:38,166 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:04:38,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:04:38,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:38,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:38,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1398279763, now seen corresponding path program 1 times [2024-11-18 15:04:38,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:38,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989107525] [2024-11-18 15:04:38,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:38,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:38,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:38,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:38,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989107525] [2024-11-18 15:04:38,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989107525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:38,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:38,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:04:38,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891906190] [2024-11-18 15:04:38,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:38,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:04:38,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:38,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:04:38,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:04:38,329 INFO L87 Difference]: Start difference. First operand 157 states and 220 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:38,427 INFO L93 Difference]: Finished difference Result 470 states and 690 transitions. [2024-11-18 15:04:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:04:38,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-18 15:04:38,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:38,430 INFO L225 Difference]: With dead ends: 470 [2024-11-18 15:04:38,430 INFO L226 Difference]: Without dead ends: 388 [2024-11-18 15:04:38,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:04:38,434 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 298 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:38,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 532 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:04:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-18 15:04:38,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 248. [2024-11-18 15:04:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 246 states have (on average 1.4593495934959348) internal successors, (359), 247 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 359 transitions. [2024-11-18 15:04:38,451 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 359 transitions. Word has length 50 [2024-11-18 15:04:38,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:38,452 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 359 transitions. [2024-11-18 15:04:38,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,452 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 359 transitions. [2024-11-18 15:04:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-18 15:04:38,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:38,454 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] [2024-11-18 15:04:38,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:04:38,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:38,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:38,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1526101883, now seen corresponding path program 1 times [2024-11-18 15:04:38,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:38,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114346503] [2024-11-18 15:04:38,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:38,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:38,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114346503] [2024-11-18 15:04:38,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114346503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:38,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:38,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:04:38,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556897022] [2024-11-18 15:04:38,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:38,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:04:38,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:38,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:04:38,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:04:38,599 INFO L87 Difference]: Start difference. First operand 248 states and 359 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:38,711 INFO L93 Difference]: Finished difference Result 556 states and 821 transitions. [2024-11-18 15:04:38,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:04:38,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-18 15:04:38,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:38,714 INFO L225 Difference]: With dead ends: 556 [2024-11-18 15:04:38,714 INFO L226 Difference]: Without dead ends: 474 [2024-11-18 15:04:38,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:04:38,716 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 356 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:38,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 537 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:04:38,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-18 15:04:38,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 376. [2024-11-18 15:04:38,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 374 states have (on average 1.4786096256684491) internal successors, (553), 375 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 553 transitions. [2024-11-18 15:04:38,731 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 553 transitions. Word has length 50 [2024-11-18 15:04:38,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:38,731 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 553 transitions. [2024-11-18 15:04:38,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,732 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 553 transitions. [2024-11-18 15:04:38,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-18 15:04:38,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:38,733 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] [2024-11-18 15:04:38,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:04:38,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:38,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash 2031133031, now seen corresponding path program 1 times [2024-11-18 15:04:38,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:38,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082749641] [2024-11-18 15:04:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:38,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:38,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:38,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082749641] [2024-11-18 15:04:38,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082749641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:38,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:38,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:04:38,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579360219] [2024-11-18 15:04:38,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:38,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:04:38,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:38,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:04:38,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:04:38,865 INFO L87 Difference]: Start difference. First operand 376 states and 553 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:38,956 INFO L93 Difference]: Finished difference Result 647 states and 960 transitions. [2024-11-18 15:04:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:04:38,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-18 15:04:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:38,959 INFO L225 Difference]: With dead ends: 647 [2024-11-18 15:04:38,959 INFO L226 Difference]: Without dead ends: 565 [2024-11-18 15:04:38,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:04:38,963 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 361 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:38,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 550 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:04:38,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-18 15:04:38,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 467. [2024-11-18 15:04:38,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4881720430107528) internal successors, (692), 466 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 692 transitions. [2024-11-18 15:04:38,983 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 692 transitions. Word has length 50 [2024-11-18 15:04:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:38,985 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 692 transitions. [2024-11-18 15:04:38,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 692 transitions. [2024-11-18 15:04:38,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 15:04:38,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:38,990 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] [2024-11-18 15:04:38,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:04:38,990 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:38,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:38,991 INFO L85 PathProgramCache]: Analyzing trace with hash 222346276, now seen corresponding path program 1 times [2024-11-18 15:04:38,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:38,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933665987] [2024-11-18 15:04:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:38,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:39,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:39,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933665987] [2024-11-18 15:04:39,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933665987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:39,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:39,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:04:39,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368340577] [2024-11-18 15:04:39,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:39,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:04:39,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:39,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:04:39,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:04:39,123 INFO L87 Difference]: Start difference. First operand 467 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:39,223 INFO L93 Difference]: Finished difference Result 911 states and 1360 transitions. [2024-11-18 15:04:39,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:04:39,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-18 15:04:39,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:39,229 INFO L225 Difference]: With dead ends: 911 [2024-11-18 15:04:39,229 INFO L226 Difference]: Without dead ends: 467 [2024-11-18 15:04:39,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:04:39,233 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 380 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:39,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 80 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:04:39,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-18 15:04:39,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-11-18 15:04:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4666666666666666) internal successors, (682), 466 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:39,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 682 transitions. [2024-11-18 15:04:39,250 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 682 transitions. Word has length 51 [2024-11-18 15:04:39,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:39,251 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 682 transitions. [2024-11-18 15:04:39,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:39,251 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 682 transitions. [2024-11-18 15:04:39,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-18 15:04:39,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:39,252 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] [2024-11-18 15:04:39,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:04:39,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:39,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:39,253 INFO L85 PathProgramCache]: Analyzing trace with hash 323435980, now seen corresponding path program 1 times [2024-11-18 15:04:39,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:39,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794883313] [2024-11-18 15:04:39,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:39,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:39,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:39,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794883313] [2024-11-18 15:04:39,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794883313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:39,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:39,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:04:39,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087099749] [2024-11-18 15:04:39,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:39,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:04:39,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:39,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:04:39,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:04:39,443 INFO L87 Difference]: Start difference. First operand 467 states and 682 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:39,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:39,537 INFO L93 Difference]: Finished difference Result 907 states and 1336 transitions. [2024-11-18 15:04:39,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:04:39,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-18 15:04:39,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:39,539 INFO L225 Difference]: With dead ends: 907 [2024-11-18 15:04:39,540 INFO L226 Difference]: Without dead ends: 467 [2024-11-18 15:04:39,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:04:39,542 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 362 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:39,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 88 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:04:39,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-18 15:04:39,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-11-18 15:04:39,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4451612903225806) internal successors, (672), 466 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:39,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 672 transitions. [2024-11-18 15:04:39,552 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 672 transitions. Word has length 52 [2024-11-18 15:04:39,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:39,553 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 672 transitions. [2024-11-18 15:04:39,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:39,554 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 672 transitions. [2024-11-18 15:04:39,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-18 15:04:39,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:39,557 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] [2024-11-18 15:04:39,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:04:39,558 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:39,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:39,558 INFO L85 PathProgramCache]: Analyzing trace with hash 549255064, now seen corresponding path program 1 times [2024-11-18 15:04:39,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:39,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977408816] [2024-11-18 15:04:39,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:39,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:39,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:39,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977408816] [2024-11-18 15:04:39,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977408816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:39,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:39,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:04:39,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52862842] [2024-11-18 15:04:39,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:39,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:04:39,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:39,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:04:39,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:04:39,698 INFO L87 Difference]: Start difference. First operand 467 states and 672 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:39,801 INFO L93 Difference]: Finished difference Result 903 states and 1312 transitions. [2024-11-18 15:04:39,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:04:39,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-11-18 15:04:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:39,804 INFO L225 Difference]: With dead ends: 903 [2024-11-18 15:04:39,804 INFO L226 Difference]: Without dead ends: 467 [2024-11-18 15:04:39,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:04:39,806 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 344 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:39,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 96 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:04:39,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-18 15:04:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2024-11-18 15:04:39,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4236559139784946) internal successors, (662), 466 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:39,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 662 transitions. [2024-11-18 15:04:39,820 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 662 transitions. Word has length 53 [2024-11-18 15:04:39,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:39,820 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 662 transitions. [2024-11-18 15:04:39,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:39,820 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 662 transitions. [2024-11-18 15:04:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-18 15:04:39,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:39,822 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] [2024-11-18 15:04:39,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:04:39,822 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:39,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:39,823 INFO L85 PathProgramCache]: Analyzing trace with hash -680909608, now seen corresponding path program 1 times [2024-11-18 15:04:39,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:39,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535228860] [2024-11-18 15:04:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:39,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:40,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:40,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535228860] [2024-11-18 15:04:40,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535228860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:40,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:40,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:04:40,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269703286] [2024-11-18 15:04:40,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:40,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:04:40,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:40,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:04:40,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:04:40,196 INFO L87 Difference]: Start difference. First operand 467 states and 662 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:40,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:40,488 INFO L93 Difference]: Finished difference Result 1260 states and 1810 transitions. [2024-11-18 15:04:40,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:04:40,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-18 15:04:40,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:40,492 INFO L225 Difference]: With dead ends: 1260 [2024-11-18 15:04:40,493 INFO L226 Difference]: Without dead ends: 856 [2024-11-18 15:04:40,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-18 15:04:40,497 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 706 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:40,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 324 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:04:40,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-18 15:04:40,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 467. [2024-11-18 15:04:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.421505376344086) internal successors, (661), 466 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 661 transitions. [2024-11-18 15:04:40,510 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 661 transitions. Word has length 54 [2024-11-18 15:04:40,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:40,510 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 661 transitions. [2024-11-18 15:04:40,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 661 transitions. [2024-11-18 15:04:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-18 15:04:40,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:40,511 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] [2024-11-18 15:04:40,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:04:40,512 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:40,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:40,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1757672516, now seen corresponding path program 1 times [2024-11-18 15:04:40,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:40,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704798318] [2024-11-18 15:04:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:40,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:40,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:40,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704798318] [2024-11-18 15:04:40,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704798318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:40,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:40,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:04:40,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161717399] [2024-11-18 15:04:40,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:40,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:04:40,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:40,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:04:40,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:04:40,867 INFO L87 Difference]: Start difference. First operand 467 states and 661 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:41,285 INFO L93 Difference]: Finished difference Result 1288 states and 1843 transitions. [2024-11-18 15:04:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:04:41,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-18 15:04:41,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:41,288 INFO L225 Difference]: With dead ends: 1288 [2024-11-18 15:04:41,288 INFO L226 Difference]: Without dead ends: 889 [2024-11-18 15:04:41,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:04:41,290 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 593 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:41,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 511 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:04:41,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2024-11-18 15:04:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 467. [2024-11-18 15:04:41,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4172043010752688) internal successors, (659), 466 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:41,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 659 transitions. [2024-11-18 15:04:41,305 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 659 transitions. Word has length 54 [2024-11-18 15:04:41,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:41,305 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 659 transitions. [2024-11-18 15:04:41,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 659 transitions. [2024-11-18 15:04:41,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 15:04:41,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:41,306 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] [2024-11-18 15:04:41,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:04:41,307 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:41,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash -728953036, now seen corresponding path program 1 times [2024-11-18 15:04:41,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:41,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317830933] [2024-11-18 15:04:41,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:41,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:41,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:41,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317830933] [2024-11-18 15:04:41,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317830933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:41,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:41,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:04:41,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003756613] [2024-11-18 15:04:41,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:41,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:04:41,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:41,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:04:41,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:04:41,642 INFO L87 Difference]: Start difference. First operand 467 states and 659 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:42,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:42,036 INFO L93 Difference]: Finished difference Result 1273 states and 1817 transitions. [2024-11-18 15:04:42,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:04:42,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-18 15:04:42,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:42,040 INFO L225 Difference]: With dead ends: 1273 [2024-11-18 15:04:42,040 INFO L226 Difference]: Without dead ends: 884 [2024-11-18 15:04:42,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-18 15:04:42,041 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 706 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:42,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 406 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:04:42,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-18 15:04:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 467. [2024-11-18 15:04:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4086021505376345) internal successors, (655), 466 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:42,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 655 transitions. [2024-11-18 15:04:42,053 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 655 transitions. Word has length 55 [2024-11-18 15:04:42,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:42,054 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 655 transitions. [2024-11-18 15:04:42,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:42,054 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 655 transitions. [2024-11-18 15:04:42,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 15:04:42,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:42,056 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] [2024-11-18 15:04:42,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:04:42,057 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:42,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:42,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2014195720, now seen corresponding path program 1 times [2024-11-18 15:04:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:42,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110613263] [2024-11-18 15:04:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:43,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:43,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:43,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110613263] [2024-11-18 15:04:43,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110613263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:43,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:43,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-18 15:04:43,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001922703] [2024-11-18 15:04:43,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:43,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-18 15:04:43,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:43,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-18 15:04:43,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2024-11-18 15:04:43,329 INFO L87 Difference]: Start difference. First operand 467 states and 655 transitions. Second operand has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:45,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:45,380 INFO L93 Difference]: Finished difference Result 1744 states and 2498 transitions. [2024-11-18 15:04:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-18 15:04:45,388 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-18 15:04:45,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:45,396 INFO L225 Difference]: With dead ends: 1744 [2024-11-18 15:04:45,396 INFO L226 Difference]: Without dead ends: 1653 [2024-11-18 15:04:45,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=356, Invalid=1450, Unknown=0, NotChecked=0, Total=1806 [2024-11-18 15:04:45,398 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 819 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:45,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 2523 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 15:04:45,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-11-18 15:04:45,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 467. [2024-11-18 15:04:45,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4064516129032258) internal successors, (654), 466 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 654 transitions. [2024-11-18 15:04:45,419 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 654 transitions. Word has length 56 [2024-11-18 15:04:45,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:45,420 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 654 transitions. [2024-11-18 15:04:45,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 22 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:45,420 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 654 transitions. [2024-11-18 15:04:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 15:04:45,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:45,422 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] [2024-11-18 15:04:45,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 15:04:45,422 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:45,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:45,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1797287643, now seen corresponding path program 1 times [2024-11-18 15:04:45,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:45,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19469132] [2024-11-18 15:04:45,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:45,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:45,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:45,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19469132] [2024-11-18 15:04:45,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19469132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:45,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:45,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 15:04:45,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981297719] [2024-11-18 15:04:45,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:45,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 15:04:45,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:45,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 15:04:45,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-18 15:04:45,924 INFO L87 Difference]: Start difference. First operand 467 states and 654 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:46,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:46,455 INFO L93 Difference]: Finished difference Result 1796 states and 2579 transitions. [2024-11-18 15:04:46,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:04:46,456 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-18 15:04:46,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:46,461 INFO L225 Difference]: With dead ends: 1796 [2024-11-18 15:04:46,461 INFO L226 Difference]: Without dead ends: 1604 [2024-11-18 15:04:46,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-18 15:04:46,463 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 630 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:46,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 1020 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:04:46,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2024-11-18 15:04:46,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 446. [2024-11-18 15:04:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 444 states have (on average 1.40990990990991) internal successors, (626), 445 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:46,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 626 transitions. [2024-11-18 15:04:46,483 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 626 transitions. Word has length 56 [2024-11-18 15:04:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:46,483 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 626 transitions. [2024-11-18 15:04:46,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 626 transitions. [2024-11-18 15:04:46,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 15:04:46,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:46,484 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] [2024-11-18 15:04:46,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 15:04:46,484 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:46,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash 929811098, now seen corresponding path program 1 times [2024-11-18 15:04:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:46,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536052171] [2024-11-18 15:04:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:46,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:47,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:47,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536052171] [2024-11-18 15:04:47,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536052171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:47,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:47,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-18 15:04:47,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434121006] [2024-11-18 15:04:47,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:47,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-18 15:04:47,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:47,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-18 15:04:47,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:04:47,409 INFO L87 Difference]: Start difference. First operand 446 states and 626 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:48,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:48,731 INFO L93 Difference]: Finished difference Result 1780 states and 2557 transitions. [2024-11-18 15:04:48,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-18 15:04:48,732 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-18 15:04:48,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:48,737 INFO L225 Difference]: With dead ends: 1780 [2024-11-18 15:04:48,737 INFO L226 Difference]: Without dead ends: 1603 [2024-11-18 15:04:48,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=1272, Unknown=0, NotChecked=0, Total=1560 [2024-11-18 15:04:48,739 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 739 mSDsluCounter, 2070 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:48,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 2238 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 15:04:48,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2024-11-18 15:04:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 456. [2024-11-18 15:04:48,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 454 states have (on average 1.4052863436123348) internal successors, (638), 455 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:48,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 638 transitions. [2024-11-18 15:04:48,755 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 638 transitions. Word has length 56 [2024-11-18 15:04:48,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:48,755 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 638 transitions. [2024-11-18 15:04:48,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:48,755 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 638 transitions. [2024-11-18 15:04:48,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 15:04:48,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:48,756 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] [2024-11-18 15:04:48,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 15:04:48,756 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:48,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:48,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1026982439, now seen corresponding path program 1 times [2024-11-18 15:04:48,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:48,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99768514] [2024-11-18 15:04:48,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:48,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:49,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:49,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99768514] [2024-11-18 15:04:49,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99768514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:49,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:49,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:04:49,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493923217] [2024-11-18 15:04:49,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:49,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:04:49,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:49,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:04:49,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:04:49,282 INFO L87 Difference]: Start difference. First operand 456 states and 638 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:49,914 INFO L93 Difference]: Finished difference Result 994 states and 1423 transitions. [2024-11-18 15:04:49,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:04:49,915 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-18 15:04:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:49,917 INFO L225 Difference]: With dead ends: 994 [2024-11-18 15:04:49,917 INFO L226 Difference]: Without dead ends: 817 [2024-11-18 15:04:49,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:04:49,918 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 460 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:49,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1074 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:04:49,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-11-18 15:04:49,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 443. [2024-11-18 15:04:49,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 441 states have (on average 1.4058956916099774) internal successors, (620), 442 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:49,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 620 transitions. [2024-11-18 15:04:49,927 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 620 transitions. Word has length 56 [2024-11-18 15:04:49,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:49,928 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 620 transitions. [2024-11-18 15:04:49,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:49,928 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 620 transitions. [2024-11-18 15:04:49,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-18 15:04:49,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:49,928 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:04:49,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 15:04:49,929 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:49,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:49,929 INFO L85 PathProgramCache]: Analyzing trace with hash 788720349, now seen corresponding path program 1 times [2024-11-18 15:04:49,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:49,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227239074] [2024-11-18 15:04:49,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:49,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:50,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:50,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227239074] [2024-11-18 15:04:50,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227239074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:50,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:50,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:04:50,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289058962] [2024-11-18 15:04:50,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:50,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:04:50,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:50,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:04:50,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:04:50,449 INFO L87 Difference]: Start difference. First operand 443 states and 620 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:50,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:50,968 INFO L93 Difference]: Finished difference Result 978 states and 1402 transitions. [2024-11-18 15:04:50,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:04:50,969 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-18 15:04:50,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:50,971 INFO L225 Difference]: With dead ends: 978 [2024-11-18 15:04:50,971 INFO L226 Difference]: Without dead ends: 798 [2024-11-18 15:04:50,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:04:50,972 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 454 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:50,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1112 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:04:50,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-18 15:04:50,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 420. [2024-11-18 15:04:50,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.4152744630071599) internal successors, (593), 419 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 593 transitions. [2024-11-18 15:04:50,982 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 593 transitions. Word has length 57 [2024-11-18 15:04:50,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:50,983 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 593 transitions. [2024-11-18 15:04:50,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:50,983 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 593 transitions. [2024-11-18 15:04:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-18 15:04:50,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:50,984 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:04:50,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 15:04:50,984 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:50,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:50,985 INFO L85 PathProgramCache]: Analyzing trace with hash -773234718, now seen corresponding path program 1 times [2024-11-18 15:04:50,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:50,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944383997] [2024-11-18 15:04:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:50,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:51,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:51,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944383997] [2024-11-18 15:04:51,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944383997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:51,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:51,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:04:51,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136099951] [2024-11-18 15:04:51,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:51,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:04:51,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:51,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:04:51,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:04:51,036 INFO L87 Difference]: Start difference. First operand 420 states and 593 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:51,058 INFO L93 Difference]: Finished difference Result 1086 states and 1560 transitions. [2024-11-18 15:04:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:04:51,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-18 15:04:51,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:51,061 INFO L225 Difference]: With dead ends: 1086 [2024-11-18 15:04:51,061 INFO L226 Difference]: Without dead ends: 724 [2024-11-18 15:04:51,061 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 [2024-11-18 15:04:51,062 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 49 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:51,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 276 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:04:51,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-18 15:04:51,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 722. [2024-11-18 15:04:51,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.3994452149791956) internal successors, (1009), 721 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1009 transitions. [2024-11-18 15:04:51,073 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1009 transitions. Word has length 76 [2024-11-18 15:04:51,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:51,073 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 1009 transitions. [2024-11-18 15:04:51,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1009 transitions. [2024-11-18 15:04:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 15:04:51,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:51,074 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:04:51,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 15:04:51,074 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:51,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2013626748, now seen corresponding path program 1 times [2024-11-18 15:04:51,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:51,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372111320] [2024-11-18 15:04:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:51,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:51,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:51,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372111320] [2024-11-18 15:04:51,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372111320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:51,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:51,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:04:51,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005948239] [2024-11-18 15:04:51,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:51,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:04:51,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:51,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:04:51,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:04:51,232 INFO L87 Difference]: Start difference. First operand 722 states and 1009 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:51,253 INFO L93 Difference]: Finished difference Result 1807 states and 2544 transitions. [2024-11-18 15:04:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:04:51,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-18 15:04:51,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:51,256 INFO L225 Difference]: With dead ends: 1807 [2024-11-18 15:04:51,256 INFO L226 Difference]: Without dead ends: 1143 [2024-11-18 15:04:51,257 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 [2024-11-18 15:04:51,257 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 55 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:51,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 263 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:04:51,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-11-18 15:04:51,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1069. [2024-11-18 15:04:51,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1068 states have (on average 1.392322097378277) internal successors, (1487), 1068 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1487 transitions. [2024-11-18 15:04:51,273 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1487 transitions. Word has length 77 [2024-11-18 15:04:51,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:51,273 INFO L471 AbstractCegarLoop]: Abstraction has 1069 states and 1487 transitions. [2024-11-18 15:04:51,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1487 transitions. [2024-11-18 15:04:51,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-18 15:04:51,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:51,274 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:04:51,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 15:04:51,274 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:51,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:51,275 INFO L85 PathProgramCache]: Analyzing trace with hash 31132410, now seen corresponding path program 1 times [2024-11-18 15:04:51,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:51,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075088260] [2024-11-18 15:04:51,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:51,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:51,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:51,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075088260] [2024-11-18 15:04:51,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075088260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:51,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:51,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:04:51,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871938637] [2024-11-18 15:04:51,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:51,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:04:51,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:51,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:04:51,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:04:51,370 INFO L87 Difference]: Start difference. First operand 1069 states and 1487 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:51,390 INFO L93 Difference]: Finished difference Result 2983 states and 4150 transitions. [2024-11-18 15:04:51,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:04:51,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-18 15:04:51,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:51,395 INFO L225 Difference]: With dead ends: 2983 [2024-11-18 15:04:51,395 INFO L226 Difference]: Without dead ends: 1972 [2024-11-18 15:04:51,397 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 [2024-11-18 15:04:51,397 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:51,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 261 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:04:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2024-11-18 15:04:51,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1862. [2024-11-18 15:04:51,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1861 states have (on average 1.3761418592154755) internal successors, (2561), 1861 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2561 transitions. [2024-11-18 15:04:51,426 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2561 transitions. Word has length 78 [2024-11-18 15:04:51,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:51,426 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2561 transitions. [2024-11-18 15:04:51,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2561 transitions. [2024-11-18 15:04:51,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 15:04:51,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:51,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:04:51,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 15:04:51,428 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:51,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:51,429 INFO L85 PathProgramCache]: Analyzing trace with hash 769651115, now seen corresponding path program 1 times [2024-11-18 15:04:51,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:51,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784382949] [2024-11-18 15:04:51,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:51,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:51,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:51,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784382949] [2024-11-18 15:04:51,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784382949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:51,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:51,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:04:51,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860330890] [2024-11-18 15:04:51,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:51,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:04:51,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:51,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:04:51,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:04:51,514 INFO L87 Difference]: Start difference. First operand 1862 states and 2561 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:51,539 INFO L93 Difference]: Finished difference Result 5254 states and 7183 transitions. [2024-11-18 15:04:51,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:04:51,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-18 15:04:51,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:51,548 INFO L225 Difference]: With dead ends: 5254 [2024-11-18 15:04:51,548 INFO L226 Difference]: Without dead ends: 3450 [2024-11-18 15:04:51,550 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 [2024-11-18 15:04:51,550 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 41 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:51,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 258 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:04:51,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2024-11-18 15:04:51,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 3232. [2024-11-18 15:04:51,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 3231 states have (on average 1.3488084184463014) internal successors, (4358), 3231 states have internal predecessors, (4358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4358 transitions. [2024-11-18 15:04:51,622 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4358 transitions. Word has length 79 [2024-11-18 15:04:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:51,622 INFO L471 AbstractCegarLoop]: Abstraction has 3232 states and 4358 transitions. [2024-11-18 15:04:51,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4358 transitions. [2024-11-18 15:04:51,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 15:04:51,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:51,623 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] [2024-11-18 15:04:51,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 15:04:51,624 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:51,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:51,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1757386099, now seen corresponding path program 1 times [2024-11-18 15:04:51,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:51,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687479200] [2024-11-18 15:04:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:51,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:51,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:51,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687479200] [2024-11-18 15:04:51,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687479200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:51,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:51,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:04:51,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724893611] [2024-11-18 15:04:51,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:51,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:04:51,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:51,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:04:51,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:04:51,831 INFO L87 Difference]: Start difference. First operand 3232 states and 4358 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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) [2024-11-18 15:04:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:51,864 INFO L93 Difference]: Finished difference Result 3330 states and 4487 transitions. [2024-11-18 15:04:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:04:51,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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 [2024-11-18 15:04:51,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:51,872 INFO L225 Difference]: With dead ends: 3330 [2024-11-18 15:04:51,872 INFO L226 Difference]: Without dead ends: 3328 [2024-11-18 15:04:51,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:04:51,873 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:51,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 579 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:04:51,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2024-11-18 15:04:51,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 3328. [2024-11-18 15:04:51,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3327 states have (on average 1.3267207694619778) internal successors, (4414), 3327 states have internal predecessors, (4414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:51,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4414 transitions. [2024-11-18 15:04:51,919 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4414 transitions. Word has length 80 [2024-11-18 15:04:51,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:51,920 INFO L471 AbstractCegarLoop]: Abstraction has 3328 states and 4414 transitions. [2024-11-18 15:04:51,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 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) [2024-11-18 15:04:51,920 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4414 transitions. [2024-11-18 15:04:51,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 15:04:51,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:51,921 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] [2024-11-18 15:04:51,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 15:04:51,921 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:51,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:51,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1852306095, now seen corresponding path program 1 times [2024-11-18 15:04:51,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:51,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327754294] [2024-11-18 15:04:51,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:51,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:51,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:51,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327754294] [2024-11-18 15:04:51,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327754294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:04:51,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:04:51,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:04:51,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641000949] [2024-11-18 15:04:51,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:04:51,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:04:51,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:51,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:04:51,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:04:51,994 INFO L87 Difference]: Start difference. First operand 3328 states and 4414 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:52,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:52,027 INFO L93 Difference]: Finished difference Result 6724 states and 8936 transitions. [2024-11-18 15:04:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:04:52,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-18 15:04:52,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:52,046 INFO L225 Difference]: With dead ends: 6724 [2024-11-18 15:04:52,046 INFO L226 Difference]: Without dead ends: 3454 [2024-11-18 15:04:52,055 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 [2024-11-18 15:04:52,055 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 67 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:52,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 208 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:04:52,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2024-11-18 15:04:52,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3452. [2024-11-18 15:04:52,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 1.3057084902926688) internal successors, (4506), 3451 states have internal predecessors, (4506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:52,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 4506 transitions. [2024-11-18 15:04:52,126 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 4506 transitions. Word has length 80 [2024-11-18 15:04:52,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:52,126 INFO L471 AbstractCegarLoop]: Abstraction has 3452 states and 4506 transitions. [2024-11-18 15:04:52,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:52,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 4506 transitions. [2024-11-18 15:04:52,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 15:04:52,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:52,129 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:04:52,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 15:04:52,129 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:52,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:52,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1815794868, now seen corresponding path program 1 times [2024-11-18 15:04:52,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:52,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446439125] [2024-11-18 15:04:52,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:52,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:52,616 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:52,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:52,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446439125] [2024-11-18 15:04:52,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446439125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:04:52,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112855345] [2024-11-18 15:04:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:52,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:04:52,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:04:52,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 15:04:52,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 15:04:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:52,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 15:04:52,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:04:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 15:04:52,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 15:04:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 15:04:53,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112855345] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 15:04:53,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 15:04:53,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 18 [2024-11-18 15:04:53,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60668434] [2024-11-18 15:04:53,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 15:04:53,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-18 15:04:53,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:04:53,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-18 15:04:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-18 15:04:53,416 INFO L87 Difference]: Start difference. First operand 3452 states and 4506 transitions. Second operand has 18 states, 18 states have (on average 15.833333333333334) internal successors, (285), 18 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:56,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:04:56,152 INFO L93 Difference]: Finished difference Result 21661 states and 28405 transitions. [2024-11-18 15:04:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-18 15:04:56,153 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.833333333333334) internal successors, (285), 18 states have internal predecessors, (285), 0 states have call successors, (0), 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 101 [2024-11-18 15:04:56,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:04:56,180 INFO L225 Difference]: With dead ends: 21661 [2024-11-18 15:04:56,180 INFO L226 Difference]: Without dead ends: 18267 [2024-11-18 15:04:56,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1457 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=920, Invalid=4192, Unknown=0, NotChecked=0, Total=5112 [2024-11-18 15:04:56,188 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1809 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 15:04:56,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 1150 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 15:04:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18267 states. [2024-11-18 15:04:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18267 to 11627. [2024-11-18 15:04:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11627 states, 11626 states have (on average 1.31747806640289) internal successors, (15317), 11626 states have internal predecessors, (15317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11627 states to 11627 states and 15317 transitions. [2024-11-18 15:04:56,390 INFO L78 Accepts]: Start accepts. Automaton has 11627 states and 15317 transitions. Word has length 101 [2024-11-18 15:04:56,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:04:56,391 INFO L471 AbstractCegarLoop]: Abstraction has 11627 states and 15317 transitions. [2024-11-18 15:04:56,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.833333333333334) internal successors, (285), 18 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:04:56,391 INFO L276 IsEmpty]: Start isEmpty. Operand 11627 states and 15317 transitions. [2024-11-18 15:04:56,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-18 15:04:56,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:04:56,393 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:04:56,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 15:04:56,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-18 15:04:56,595 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:04:56,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:04:56,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1635937356, now seen corresponding path program 1 times [2024-11-18 15:04:56,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:04:56,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085643947] [2024-11-18 15:04:56,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:56,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:04:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:57,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:04:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085643947] [2024-11-18 15:04:57,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085643947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:04:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728870888] [2024-11-18 15:04:57,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:04:57,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:04:57,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:04:57,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 15:04:57,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 15:04:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:04:57,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-18 15:04:57,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:04:59,355 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:04:59,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 15:05:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:05:01,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728870888] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 15:05:01,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 15:05:01,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22, 21] total 56 [2024-11-18 15:05:01,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433950388] [2024-11-18 15:05:01,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 15:05:01,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-18 15:05:01,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:05:01,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-18 15:05:01,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2851, Unknown=0, NotChecked=0, Total=3080 [2024-11-18 15:05:01,151 INFO L87 Difference]: Start difference. First operand 11627 states and 15317 transitions. Second operand has 56 states, 56 states have (on average 5.196428571428571) internal successors, (291), 56 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:05:45,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:05:45,906 INFO L93 Difference]: Finished difference Result 149837 states and 197613 transitions. [2024-11-18 15:05:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 481 states. [2024-11-18 15:05:45,906 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 5.196428571428571) internal successors, (291), 56 states have internal predecessors, (291), 0 states have call successors, (0), 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 102 [2024-11-18 15:05:45,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:05:46,148 INFO L225 Difference]: With dead ends: 149837 [2024-11-18 15:05:46,148 INFO L226 Difference]: Without dead ends: 138285 [2024-11-18 15:05:46,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 533 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119136 ImplicationChecksByTransitivity, 37.9s TimeCoverageRelationStatistics Valid=19060, Invalid=266630, Unknown=0, NotChecked=0, Total=285690 [2024-11-18 15:05:46,229 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 11325 mSDsluCounter, 8665 mSDsCounter, 0 mSdLazyCounter, 13669 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11325 SdHoareTripleChecker+Valid, 8934 SdHoareTripleChecker+Invalid, 13919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 13669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:05:46,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11325 Valid, 8934 Invalid, 13919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [250 Valid, 13669 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-18 15:05:46,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138285 states. [2024-11-18 15:05:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138285 to 39267. [2024-11-18 15:05:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39267 states, 39266 states have (on average 1.3178576885855446) internal successors, (51747), 39266 states have internal predecessors, (51747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:05:47,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39267 states to 39267 states and 51747 transitions. [2024-11-18 15:05:47,786 INFO L78 Accepts]: Start accepts. Automaton has 39267 states and 51747 transitions. Word has length 102 [2024-11-18 15:05:47,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:05:47,787 INFO L471 AbstractCegarLoop]: Abstraction has 39267 states and 51747 transitions. [2024-11-18 15:05:47,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 5.196428571428571) internal successors, (291), 56 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:05:47,788 INFO L276 IsEmpty]: Start isEmpty. Operand 39267 states and 51747 transitions. [2024-11-18 15:05:47,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 15:05:47,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:05:47,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:05:47,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 15:05:47,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-18 15:05:47,999 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:05:48,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:05:48,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1399222449, now seen corresponding path program 1 times [2024-11-18 15:05:48,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:05:48,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691362072] [2024-11-18 15:05:48,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:05:48,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:05:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:05:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:05:48,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:05:48,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691362072] [2024-11-18 15:05:48,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691362072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:05:48,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19987025] [2024-11-18 15:05:48,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:05:48,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:05:48,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:05:48,373 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 15:05:48,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 15:05:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:05:48,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-18 15:05:48,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:05:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:05:49,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 15:05:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:05:50,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19987025] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 15:05:50,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 15:05:50,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 15] total 33 [2024-11-18 15:05:50,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003265991] [2024-11-18 15:05:50,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 15:05:50,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-18 15:05:50,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:05:50,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-18 15:05:50,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=934, Unknown=0, NotChecked=0, Total=1122 [2024-11-18 15:05:50,468 INFO L87 Difference]: Start difference. First operand 39267 states and 51747 transitions. Second operand has 34 states, 34 states have (on average 7.588235294117647) internal successors, (258), 33 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:05:53,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:05:53,715 INFO L93 Difference]: Finished difference Result 129564 states and 171193 transitions. [2024-11-18 15:05:53,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-18 15:05:53,716 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.588235294117647) internal successors, (258), 33 states have internal predecessors, (258), 0 states have call successors, (0), 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 103 [2024-11-18 15:05:53,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:05:53,847 INFO L225 Difference]: With dead ends: 129564 [2024-11-18 15:05:53,847 INFO L226 Difference]: Without dead ends: 117109 [2024-11-18 15:05:53,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2627 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2085, Invalid=7035, Unknown=0, NotChecked=0, Total=9120 [2024-11-18 15:05:53,877 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 2979 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:05:53,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2979 Valid, 2233 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 15:05:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117109 states. [2024-11-18 15:05:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117109 to 49152. [2024-11-18 15:05:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49152 states, 49151 states have (on average 1.3160668145103864) internal successors, (64686), 49151 states have internal predecessors, (64686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:05:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49152 states to 49152 states and 64686 transitions. [2024-11-18 15:05:54,872 INFO L78 Accepts]: Start accepts. Automaton has 49152 states and 64686 transitions. Word has length 103 [2024-11-18 15:05:54,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:05:54,872 INFO L471 AbstractCegarLoop]: Abstraction has 49152 states and 64686 transitions. [2024-11-18 15:05:54,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.588235294117647) internal successors, (258), 33 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:05:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand 49152 states and 64686 transitions. [2024-11-18 15:05:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 15:05:54,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:05:54,879 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:05:54,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 15:05:55,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:05:55,080 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:05:55,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:05:55,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1444926327, now seen corresponding path program 1 times [2024-11-18 15:05:55,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:05:55,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690530338] [2024-11-18 15:05:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:05:55,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:05:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat