./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.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-var-start-time.4.2.ufo.UNBOUNDED.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 e1221f43edcd55fb28cc2c33b3cd78828237d81c097e561fccaa486cdd56e141 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:00:37,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:00:37,271 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:00:37,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:00:37,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:00:37,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:00:37,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:00:37,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:00:37,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:00:37,300 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:00:37,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:00:37,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:00:37,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:00:37,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:00:37,302 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:00:37,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:00:37,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:00:37,303 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:00:37,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:00:37,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:00:37,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:00:37,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:00:37,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:00:37,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:00:37,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:00:37,305 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:00:37,305 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:00:37,305 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:00:37,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:00:37,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:00:37,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:00:37,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:00:37,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:00:37,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:00:37,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:00:37,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:00:37,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:00:37,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:00:37,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:00:37,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:00:37,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:00:37,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:00:37,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1221f43edcd55fb28cc2c33b3cd78828237d81c097e561fccaa486cdd56e141 [2024-11-18 15:00:37,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:00:37,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:00:37,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:00:37,613 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:00:37,613 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:00:37,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-18 15:00:39,068 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:00:39,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:00:39,402 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-18 15:00:39,423 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b53993de/5cc059244ad74d7bba2097fd3b8c1acb/FLAG8b5ea5dfa [2024-11-18 15:00:39,437 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b53993de/5cc059244ad74d7bba2097fd3b8c1acb [2024-11-18 15:00:39,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:00:39,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:00:39,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:00:39,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:00:39,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:00:39,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:39,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc405f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39, skipping insertion in model container [2024-11-18 15:00:39,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:39,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:00:39,731 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-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-11-18 15:00:39,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:00:39,800 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:00:39,835 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-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7107,7120] [2024-11-18 15:00:39,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:00:39,883 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:00:39,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39 WrapperNode [2024-11-18 15:00:39,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:00:39,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:00:39,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:00:39,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:00:39,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:39,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:39,949 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 695 [2024-11-18 15:00:39,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:00:39,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:00:39,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:00:39,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:00:39,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:39,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:39,986 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:40,016 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 15:00:40,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:40,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:40,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:40,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:40,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:40,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:40,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:00:40,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:00:40,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:00:40,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:00:40,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (1/1) ... [2024-11-18 15:00:40,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:00:40,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:00:40,118 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 15:00:40,125 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 15:00:40,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:00:40,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:00:40,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:00:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:00:40,267 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:00:40,269 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:00:40,814 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-18 15:00:40,815 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:00:40,828 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:00:40,828 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:00:40,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:00:40 BoogieIcfgContainer [2024-11-18 15:00:40,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:00:40,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:00:40,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:00:40,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:00:40,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:00:39" (1/3) ... [2024-11-18 15:00:40,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d54dde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:00:40, skipping insertion in model container [2024-11-18 15:00:40,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:00:39" (2/3) ... [2024-11-18 15:00:40,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d54dde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:00:40, skipping insertion in model container [2024-11-18 15:00:40,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:00:40" (3/3) ... [2024-11-18 15:00:40,836 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-18 15:00:40,854 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:00:40,855 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 15:00:40,917 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:00:40,921 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;@4c645905, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:00:40,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 15:00:40,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 168 states have (on average 1.7202380952380953) internal successors, (289), 169 states have internal predecessors, (289), 0 states have call successors, (0), 0 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 15:00:40,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-18 15:00:40,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:40,939 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] [2024-11-18 15:00:40,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:40,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:40,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1270648051, now seen corresponding path program 1 times [2024-11-18 15:00:40,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:40,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812222581] [2024-11-18 15:00:40,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:40,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:41,548 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 15:00:41,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:41,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812222581] [2024-11-18 15:00:41,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812222581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:41,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:41,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:41,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617098763] [2024-11-18 15:00:41,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:41,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:00:41,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:41,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:00:41,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:00:41,576 INFO L87 Difference]: Start difference. First operand has 170 states, 168 states have (on average 1.7202380952380953) internal successors, (289), 169 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 15:00:41,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:41,792 INFO L93 Difference]: Finished difference Result 605 states and 979 transitions. [2024-11-18 15:00:41,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:00:41,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-18 15:00:41,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:41,808 INFO L225 Difference]: With dead ends: 605 [2024-11-18 15:00:41,810 INFO L226 Difference]: Without dead ends: 511 [2024-11-18 15:00:41,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:00:41,816 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 1748 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:41,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 958 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:00:41,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-18 15:00:41,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 260. [2024-11-18 15:00:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.5096525096525097) internal successors, (391), 259 states have internal predecessors, (391), 0 states have call successors, (0), 0 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 15:00:41,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 391 transitions. [2024-11-18 15:00:41,868 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 391 transitions. Word has length 63 [2024-11-18 15:00:41,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:41,868 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 391 transitions. [2024-11-18 15:00:41,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 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 15:00:41,870 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 391 transitions. [2024-11-18 15:00:41,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-18 15:00:41,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:41,871 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:41,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:00:41,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:41,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:41,873 INFO L85 PathProgramCache]: Analyzing trace with hash 473041692, now seen corresponding path program 1 times [2024-11-18 15:00:41,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:41,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520016698] [2024-11-18 15:00:41,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:41,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:42,104 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 15:00:42,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:42,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520016698] [2024-11-18 15:00:42,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520016698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:42,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:42,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:42,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676518431] [2024-11-18 15:00:42,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:42,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:00:42,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:42,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:00:42,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:00:42,109 INFO L87 Difference]: Start difference. First operand 260 states and 391 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:42,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:42,229 INFO L93 Difference]: Finished difference Result 968 states and 1495 transitions. [2024-11-18 15:00:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:00:42,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-18 15:00:42,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:42,232 INFO L225 Difference]: With dead ends: 968 [2024-11-18 15:00:42,232 INFO L226 Difference]: Without dead ends: 766 [2024-11-18 15:00:42,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:00:42,235 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 832 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:42,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 1005 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:00:42,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-11-18 15:00:42,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 760. [2024-11-18 15:00:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 1.533596837944664) internal successors, (1164), 759 states have internal predecessors, (1164), 0 states have call successors, (0), 0 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 15:00:42,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1164 transitions. [2024-11-18 15:00:42,272 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1164 transitions. Word has length 64 [2024-11-18 15:00:42,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:42,273 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 1164 transitions. [2024-11-18 15:00:42,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:42,273 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1164 transitions. [2024-11-18 15:00:42,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 15:00:42,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:42,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:42,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:00:42,275 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:42,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:42,276 INFO L85 PathProgramCache]: Analyzing trace with hash -222648813, now seen corresponding path program 1 times [2024-11-18 15:00:42,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:42,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931915542] [2024-11-18 15:00:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:42,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:42,451 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 15:00:42,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:42,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931915542] [2024-11-18 15:00:42,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931915542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:42,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:42,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:00:42,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495838792] [2024-11-18 15:00:42,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:42,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:00:42,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:42,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:00:42,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:00:42,455 INFO L87 Difference]: Start difference. First operand 760 states and 1164 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:42,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:42,631 INFO L93 Difference]: Finished difference Result 2032 states and 3154 transitions. [2024-11-18 15:00:42,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:00:42,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-18 15:00:42,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:42,637 INFO L225 Difference]: With dead ends: 2032 [2024-11-18 15:00:42,637 INFO L226 Difference]: Without dead ends: 1318 [2024-11-18 15:00:42,640 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 15:00:42,642 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 944 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:42,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 235 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:00:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2024-11-18 15:00:42,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1316. [2024-11-18 15:00:42,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1315 states have (on average 1.5429657794676805) internal successors, (2029), 1315 states have internal predecessors, (2029), 0 states have call successors, (0), 0 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 15:00:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 2029 transitions. [2024-11-18 15:00:42,665 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 2029 transitions. Word has length 65 [2024-11-18 15:00:42,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:42,666 INFO L471 AbstractCegarLoop]: Abstraction has 1316 states and 2029 transitions. [2024-11-18 15:00:42,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 2029 transitions. [2024-11-18 15:00:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 15:00:42,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:42,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:42,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:00:42,673 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:42,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:42,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1106030069, now seen corresponding path program 1 times [2024-11-18 15:00:42,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:42,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192243992] [2024-11-18 15:00:42,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:42,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:42,793 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 15:00:42,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:42,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192243992] [2024-11-18 15:00:42,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192243992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:42,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:42,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:00:42,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539692477] [2024-11-18 15:00:42,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:42,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:00:42,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:42,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:00:42,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:00:42,797 INFO L87 Difference]: Start difference. First operand 1316 states and 2029 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:42,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:42,973 INFO L93 Difference]: Finished difference Result 3528 states and 5495 transitions. [2024-11-18 15:00:42,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:00:42,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-18 15:00:42,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:42,981 INFO L225 Difference]: With dead ends: 3528 [2024-11-18 15:00:42,981 INFO L226 Difference]: Without dead ends: 2308 [2024-11-18 15:00:42,984 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 15:00:42,985 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 870 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:42,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 241 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:00:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2024-11-18 15:00:43,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2306. [2024-11-18 15:00:43,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2305 states have (on average 1.5475054229934924) internal successors, (3567), 2305 states have internal predecessors, (3567), 0 states have call successors, (0), 0 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 15:00:43,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 3567 transitions. [2024-11-18 15:00:43,070 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 3567 transitions. Word has length 65 [2024-11-18 15:00:43,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:43,072 INFO L471 AbstractCegarLoop]: Abstraction has 2306 states and 3567 transitions. [2024-11-18 15:00:43,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 3567 transitions. [2024-11-18 15:00:43,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 15:00:43,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:43,075 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:43,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:00:43,075 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:43,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:43,076 INFO L85 PathProgramCache]: Analyzing trace with hash 244768548, now seen corresponding path program 1 times [2024-11-18 15:00:43,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:43,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936866383] [2024-11-18 15:00:43,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:43,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:43,185 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 15:00:43,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:43,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936866383] [2024-11-18 15:00:43,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936866383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:43,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:43,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:00:43,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369481120] [2024-11-18 15:00:43,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:43,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:00:43,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:43,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:00:43,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:00:43,188 INFO L87 Difference]: Start difference. First operand 2306 states and 3567 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:43,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:43,369 INFO L93 Difference]: Finished difference Result 6569 states and 10218 transitions. [2024-11-18 15:00:43,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:00:43,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-18 15:00:43,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:43,380 INFO L225 Difference]: With dead ends: 6569 [2024-11-18 15:00:43,380 INFO L226 Difference]: Without dead ends: 4332 [2024-11-18 15:00:43,383 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 15:00:43,384 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 900 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:43,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 237 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:00:43,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2024-11-18 15:00:43,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 4330. [2024-11-18 15:00:43,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4330 states, 4329 states have (on average 1.5456225456225456) internal successors, (6691), 4329 states have internal predecessors, (6691), 0 states have call successors, (0), 0 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 15:00:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4330 states to 4330 states and 6691 transitions. [2024-11-18 15:00:43,438 INFO L78 Accepts]: Start accepts. Automaton has 4330 states and 6691 transitions. Word has length 65 [2024-11-18 15:00:43,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:43,439 INFO L471 AbstractCegarLoop]: Abstraction has 4330 states and 6691 transitions. [2024-11-18 15:00:43,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 4330 states and 6691 transitions. [2024-11-18 15:00:43,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 15:00:43,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:43,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:43,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:00:43,441 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:43,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:43,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2050472616, now seen corresponding path program 1 times [2024-11-18 15:00:43,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:43,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141693291] [2024-11-18 15:00:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:43,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:43,819 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 15:00:43,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:43,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141693291] [2024-11-18 15:00:43,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141693291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:43,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:43,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:00:43,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378117946] [2024-11-18 15:00:43,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:43,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:00:43,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:43,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:00:43,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:00:43,822 INFO L87 Difference]: Start difference. First operand 4330 states and 6691 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:43,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:43,854 INFO L93 Difference]: Finished difference Result 4460 states and 6884 transitions. [2024-11-18 15:00:43,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:00:43,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-18 15:00:43,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:43,865 INFO L225 Difference]: With dead ends: 4460 [2024-11-18 15:00:43,866 INFO L226 Difference]: Without dead ends: 4458 [2024-11-18 15:00:43,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:00:43,867 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:43,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 922 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:00:43,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2024-11-18 15:00:43,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4458. [2024-11-18 15:00:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4458 states, 4457 states have (on average 1.5299528831052278) internal successors, (6819), 4457 states have internal predecessors, (6819), 0 states have call successors, (0), 0 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 15:00:43,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4458 states to 4458 states and 6819 transitions. [2024-11-18 15:00:43,925 INFO L78 Accepts]: Start accepts. Automaton has 4458 states and 6819 transitions. Word has length 66 [2024-11-18 15:00:43,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:43,926 INFO L471 AbstractCegarLoop]: Abstraction has 4458 states and 6819 transitions. [2024-11-18 15:00:43,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4458 states and 6819 transitions. [2024-11-18 15:00:43,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 15:00:43,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:43,928 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:43,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:00:43,928 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:43,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash -598564162, now seen corresponding path program 1 times [2024-11-18 15:00:43,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:43,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170856472] [2024-11-18 15:00:43,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:43,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:44,280 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 15:00:44,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:44,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170856472] [2024-11-18 15:00:44,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170856472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:44,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:44,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:00:44,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319652112] [2024-11-18 15:00:44,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:44,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:00:44,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:44,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:00:44,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:00:44,283 INFO L87 Difference]: Start difference. First operand 4458 states and 6819 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:44,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:44,785 INFO L93 Difference]: Finished difference Result 9127 states and 13862 transitions. [2024-11-18 15:00:44,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:00:44,785 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-18 15:00:44,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:44,801 INFO L225 Difference]: With dead ends: 9127 [2024-11-18 15:00:44,801 INFO L226 Difference]: Without dead ends: 6413 [2024-11-18 15:00:44,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-18 15:00:44,805 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 1535 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:44,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 739 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:00:44,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2024-11-18 15:00:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 4553. [2024-11-18 15:00:44,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4553 states, 4552 states have (on average 1.5259226713532512) internal successors, (6946), 4552 states have internal predecessors, (6946), 0 states have call successors, (0), 0 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 15:00:44,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4553 states to 4553 states and 6946 transitions. [2024-11-18 15:00:44,879 INFO L78 Accepts]: Start accepts. Automaton has 4553 states and 6946 transitions. Word has length 67 [2024-11-18 15:00:44,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:44,879 INFO L471 AbstractCegarLoop]: Abstraction has 4553 states and 6946 transitions. [2024-11-18 15:00:44,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:44,880 INFO L276 IsEmpty]: Start isEmpty. Operand 4553 states and 6946 transitions. [2024-11-18 15:00:44,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 15:00:44,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:44,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:44,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:00:44,881 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:44,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:44,882 INFO L85 PathProgramCache]: Analyzing trace with hash -354598274, now seen corresponding path program 1 times [2024-11-18 15:00:44,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:44,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088021404] [2024-11-18 15:00:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:44,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:45,176 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 15:00:45,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:45,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088021404] [2024-11-18 15:00:45,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088021404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:45,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:45,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:00:45,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210034982] [2024-11-18 15:00:45,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:45,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:00:45,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:45,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:00:45,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:00:45,178 INFO L87 Difference]: Start difference. First operand 4553 states and 6946 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:45,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:45,746 INFO L93 Difference]: Finished difference Result 5894 states and 8918 transitions. [2024-11-18 15:00:45,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 15:00:45,747 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-18 15:00:45,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:45,771 INFO L225 Difference]: With dead ends: 5894 [2024-11-18 15:00:45,775 INFO L226 Difference]: Without dead ends: 5235 [2024-11-18 15:00:45,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-18 15:00:45,780 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 1272 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:45,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 728 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:00:45,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5235 states. [2024-11-18 15:00:45,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5235 to 4553. [2024-11-18 15:00:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4553 states, 4552 states have (on average 1.5254833040421794) internal successors, (6944), 4552 states have internal predecessors, (6944), 0 states have call successors, (0), 0 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 15:00:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4553 states to 4553 states and 6944 transitions. [2024-11-18 15:00:45,899 INFO L78 Accepts]: Start accepts. Automaton has 4553 states and 6944 transitions. Word has length 67 [2024-11-18 15:00:45,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:45,900 INFO L471 AbstractCegarLoop]: Abstraction has 4553 states and 6944 transitions. [2024-11-18 15:00:45,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 4553 states and 6944 transitions. [2024-11-18 15:00:45,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 15:00:45,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:45,903 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:45,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:00:45,903 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:45,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:45,904 INFO L85 PathProgramCache]: Analyzing trace with hash 878399134, now seen corresponding path program 1 times [2024-11-18 15:00:45,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:45,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14829609] [2024-11-18 15:00:45,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:45,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:46,247 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 15:00:46,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:46,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14829609] [2024-11-18 15:00:46,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14829609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:46,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:46,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:00:46,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361152662] [2024-11-18 15:00:46,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:46,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:00:46,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:46,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:00:46,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:00:46,250 INFO L87 Difference]: Start difference. First operand 4553 states and 6944 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:46,782 INFO L93 Difference]: Finished difference Result 7674 states and 11612 transitions. [2024-11-18 15:00:46,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:00:46,782 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-18 15:00:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:46,789 INFO L225 Difference]: With dead ends: 7674 [2024-11-18 15:00:46,793 INFO L226 Difference]: Without dead ends: 6004 [2024-11-18 15:00:46,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-18 15:00:46,796 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 1362 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:46,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 805 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:00:46,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2024-11-18 15:00:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 4694. [2024-11-18 15:00:46,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4694 states, 4693 states have (on average 1.5201363733219688) internal successors, (7134), 4693 states have internal predecessors, (7134), 0 states have call successors, (0), 0 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 15:00:46,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4694 states to 4694 states and 7134 transitions. [2024-11-18 15:00:46,892 INFO L78 Accepts]: Start accepts. Automaton has 4694 states and 7134 transitions. Word has length 67 [2024-11-18 15:00:46,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:46,892 INFO L471 AbstractCegarLoop]: Abstraction has 4694 states and 7134 transitions. [2024-11-18 15:00:46,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:46,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4694 states and 7134 transitions. [2024-11-18 15:00:46,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 15:00:46,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:46,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:46,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:00:46,894 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:46,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:46,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1495323364, now seen corresponding path program 1 times [2024-11-18 15:00:46,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:46,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016962510] [2024-11-18 15:00:46,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:46,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:46,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:00:46,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:46,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016962510] [2024-11-18 15:00:46,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016962510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:46,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:46,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:00:46,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129898939] [2024-11-18 15:00:46,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:46,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:00:46,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:46,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:00:46,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:00:46,982 INFO L87 Difference]: Start difference. First operand 4694 states and 7134 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:47,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:47,213 INFO L93 Difference]: Finished difference Result 12742 states and 19425 transitions. [2024-11-18 15:00:47,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:00:47,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-18 15:00:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:47,227 INFO L225 Difference]: With dead ends: 12742 [2024-11-18 15:00:47,227 INFO L226 Difference]: Without dead ends: 8096 [2024-11-18 15:00:47,234 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 15:00:47,235 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 961 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:47,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 240 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:00:47,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2024-11-18 15:00:47,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 8094. [2024-11-18 15:00:47,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8094 states, 8093 states have (on average 1.517237118497467) internal successors, (12279), 8093 states have internal predecessors, (12279), 0 states have call successors, (0), 0 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 15:00:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8094 states to 8094 states and 12279 transitions. [2024-11-18 15:00:47,332 INFO L78 Accepts]: Start accepts. Automaton has 8094 states and 12279 transitions. Word has length 67 [2024-11-18 15:00:47,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:47,332 INFO L471 AbstractCegarLoop]: Abstraction has 8094 states and 12279 transitions. [2024-11-18 15:00:47,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:47,333 INFO L276 IsEmpty]: Start isEmpty. Operand 8094 states and 12279 transitions. [2024-11-18 15:00:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 15:00:47,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:47,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:47,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:00:47,336 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:47,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:47,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1249029969, now seen corresponding path program 1 times [2024-11-18 15:00:47,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:47,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712539408] [2024-11-18 15:00:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:47,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:47,478 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 15:00:47,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:47,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712539408] [2024-11-18 15:00:47,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712539408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:47,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:47,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:00:47,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827151937] [2024-11-18 15:00:47,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:47,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 15:00:47,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:47,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 15:00:47,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 15:00:47,480 INFO L87 Difference]: Start difference. First operand 8094 states and 12279 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:47,540 INFO L93 Difference]: Finished difference Result 21234 states and 32297 transitions. [2024-11-18 15:00:47,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:00:47,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 15:00:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:47,562 INFO L225 Difference]: With dead ends: 21234 [2024-11-18 15:00:47,562 INFO L226 Difference]: Without dead ends: 14064 [2024-11-18 15:00:47,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:00:47,573 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 158 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:47,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 571 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:00:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14064 states. [2024-11-18 15:00:47,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14064 to 13958. [2024-11-18 15:00:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13958 states, 13957 states have (on average 1.5034033101669413) internal successors, (20983), 13957 states have internal predecessors, (20983), 0 states have call successors, (0), 0 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 15:00:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13958 states to 13958 states and 20983 transitions. [2024-11-18 15:00:47,727 INFO L78 Accepts]: Start accepts. Automaton has 13958 states and 20983 transitions. Word has length 68 [2024-11-18 15:00:47,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:47,727 INFO L471 AbstractCegarLoop]: Abstraction has 13958 states and 20983 transitions. [2024-11-18 15:00:47,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 13958 states and 20983 transitions. [2024-11-18 15:00:47,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 15:00:47,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:47,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:47,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:00:47,730 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:47,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:47,730 INFO L85 PathProgramCache]: Analyzing trace with hash -264834943, now seen corresponding path program 1 times [2024-11-18 15:00:47,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:47,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771081048] [2024-11-18 15:00:47,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:47,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:47,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:00:47,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:47,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771081048] [2024-11-18 15:00:47,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771081048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:47,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:47,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:00:47,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16772364] [2024-11-18 15:00:47,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:47,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:00:47,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:47,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:00:47,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:00:47,771 INFO L87 Difference]: Start difference. First operand 13958 states and 20983 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:47,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:47,832 INFO L93 Difference]: Finished difference Result 25362 states and 38160 transitions. [2024-11-18 15:00:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:00:47,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 15:00:47,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:47,854 INFO L225 Difference]: With dead ends: 25362 [2024-11-18 15:00:47,855 INFO L226 Difference]: Without dead ends: 17036 [2024-11-18 15:00:47,936 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 15:00:47,937 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 148 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:47,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 454 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:00:47,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17036 states. [2024-11-18 15:00:48,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17036 to 16818. [2024-11-18 15:00:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16818 states, 16817 states have (on average 1.4811202949396445) internal successors, (24908), 16817 states have internal predecessors, (24908), 0 states have call successors, (0), 0 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 15:00:48,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16818 states to 16818 states and 24908 transitions. [2024-11-18 15:00:48,120 INFO L78 Accepts]: Start accepts. Automaton has 16818 states and 24908 transitions. Word has length 68 [2024-11-18 15:00:48,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:48,121 INFO L471 AbstractCegarLoop]: Abstraction has 16818 states and 24908 transitions. [2024-11-18 15:00:48,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:48,121 INFO L276 IsEmpty]: Start isEmpty. Operand 16818 states and 24908 transitions. [2024-11-18 15:00:48,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 15:00:48,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:48,123 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:48,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 15:00:48,123 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:48,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:48,124 INFO L85 PathProgramCache]: Analyzing trace with hash -660438559, now seen corresponding path program 1 times [2024-11-18 15:00:48,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:48,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698703122] [2024-11-18 15:00:48,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:48,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:48,166 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 15:00:48,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:48,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698703122] [2024-11-18 15:00:48,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698703122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:48,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:48,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:00:48,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569097533] [2024-11-18 15:00:48,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:48,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:00:48,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:48,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:00:48,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:00:48,168 INFO L87 Difference]: Start difference. First operand 16818 states and 24908 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:48,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:48,401 INFO L93 Difference]: Finished difference Result 37671 states and 55842 transitions. [2024-11-18 15:00:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:00:48,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 15:00:48,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:48,449 INFO L225 Difference]: With dead ends: 37671 [2024-11-18 15:00:48,449 INFO L226 Difference]: Without dead ends: 23115 [2024-11-18 15:00:48,469 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 15:00:48,471 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 163 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:48,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 452 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:00:48,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23115 states. [2024-11-18 15:00:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23115 to 16687. [2024-11-18 15:00:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16687 states, 16686 states have (on average 1.4625434495984657) internal successors, (24404), 16686 states have internal predecessors, (24404), 0 states have call successors, (0), 0 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 15:00:48,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16687 states to 16687 states and 24404 transitions. [2024-11-18 15:00:48,749 INFO L78 Accepts]: Start accepts. Automaton has 16687 states and 24404 transitions. Word has length 68 [2024-11-18 15:00:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:48,750 INFO L471 AbstractCegarLoop]: Abstraction has 16687 states and 24404 transitions. [2024-11-18 15:00:48,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:48,750 INFO L276 IsEmpty]: Start isEmpty. Operand 16687 states and 24404 transitions. [2024-11-18 15:00:48,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 15:00:48,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:48,753 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:48,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 15:00:48,753 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:48,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:48,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1777284032, now seen corresponding path program 1 times [2024-11-18 15:00:48,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:48,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009935781] [2024-11-18 15:00:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:48,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:48,805 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 15:00:48,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:48,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009935781] [2024-11-18 15:00:48,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009935781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:48,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:48,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:00:48,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647889497] [2024-11-18 15:00:48,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:48,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:00:48,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:48,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:00:48,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:00:48,807 INFO L87 Difference]: Start difference. First operand 16687 states and 24404 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:48,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:48,951 INFO L93 Difference]: Finished difference Result 22883 states and 33321 transitions. [2024-11-18 15:00:48,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:00:48,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-18 15:00:48,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:48,978 INFO L225 Difference]: With dead ends: 22883 [2024-11-18 15:00:48,978 INFO L226 Difference]: Without dead ends: 17041 [2024-11-18 15:00:48,987 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 15:00:48,988 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 135 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:48,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 436 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:00:48,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17041 states. [2024-11-18 15:00:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17041 to 15375. [2024-11-18 15:00:49,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15375 states, 15374 states have (on average 1.432548458436321) internal successors, (22024), 15374 states have internal predecessors, (22024), 0 states have call successors, (0), 0 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 15:00:49,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15375 states to 15375 states and 22024 transitions. [2024-11-18 15:00:49,151 INFO L78 Accepts]: Start accepts. Automaton has 15375 states and 22024 transitions. Word has length 68 [2024-11-18 15:00:49,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:49,151 INFO L471 AbstractCegarLoop]: Abstraction has 15375 states and 22024 transitions. [2024-11-18 15:00:49,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:49,151 INFO L276 IsEmpty]: Start isEmpty. Operand 15375 states and 22024 transitions. [2024-11-18 15:00:49,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 15:00:49,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:49,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:49,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 15:00:49,154 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:49,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:49,154 INFO L85 PathProgramCache]: Analyzing trace with hash -450188991, now seen corresponding path program 1 times [2024-11-18 15:00:49,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:49,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665087487] [2024-11-18 15:00:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:49,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:49,239 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 15:00:49,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:49,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665087487] [2024-11-18 15:00:49,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665087487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:49,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:49,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:49,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125739048] [2024-11-18 15:00:49,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:49,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:00:49,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:49,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:00:49,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:00:49,241 INFO L87 Difference]: Start difference. First operand 15375 states and 22024 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:49,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:49,433 INFO L93 Difference]: Finished difference Result 32728 states and 47289 transitions. [2024-11-18 15:00:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:00:49,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-18 15:00:49,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:49,465 INFO L225 Difference]: With dead ends: 32728 [2024-11-18 15:00:49,466 INFO L226 Difference]: Without dead ends: 26334 [2024-11-18 15:00:49,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:00:49,475 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 1030 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:49,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1084 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:00:49,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26334 states. [2024-11-18 15:00:49,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26334 to 21734. [2024-11-18 15:00:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21734 states, 21733 states have (on average 1.4334882436847192) internal successors, (31154), 21733 states have internal predecessors, (31154), 0 states have call successors, (0), 0 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 15:00:49,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21734 states to 21734 states and 31154 transitions. [2024-11-18 15:00:49,717 INFO L78 Accepts]: Start accepts. Automaton has 21734 states and 31154 transitions. Word has length 69 [2024-11-18 15:00:49,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:49,717 INFO L471 AbstractCegarLoop]: Abstraction has 21734 states and 31154 transitions. [2024-11-18 15:00:49,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:49,718 INFO L276 IsEmpty]: Start isEmpty. Operand 21734 states and 31154 transitions. [2024-11-18 15:00:49,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 15:00:49,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:49,722 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:49,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 15:00:49,723 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:49,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:49,723 INFO L85 PathProgramCache]: Analyzing trace with hash 558054915, now seen corresponding path program 1 times [2024-11-18 15:00:49,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:49,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534105618] [2024-11-18 15:00:49,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:49,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:49,859 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 15:00:49,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:49,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534105618] [2024-11-18 15:00:49,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534105618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:49,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:49,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:49,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341433830] [2024-11-18 15:00:49,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:49,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:00:49,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:49,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:00:49,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:00:49,862 INFO L87 Difference]: Start difference. First operand 21734 states and 31154 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:50,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:50,008 INFO L93 Difference]: Finished difference Result 30900 states and 44495 transitions. [2024-11-18 15:00:50,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:00:50,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-18 15:00:50,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:50,049 INFO L225 Difference]: With dead ends: 30900 [2024-11-18 15:00:50,049 INFO L226 Difference]: Without dead ends: 29482 [2024-11-18 15:00:50,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:00:50,060 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 1049 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1118 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 15:00:50,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 1118 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:00:50,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29482 states. [2024-11-18 15:00:50,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29482 to 23136. [2024-11-18 15:00:50,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23136 states, 23135 states have (on average 1.4337583747568619) internal successors, (33170), 23135 states have internal predecessors, (33170), 0 states have call successors, (0), 0 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 15:00:50,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23136 states to 23136 states and 33170 transitions. [2024-11-18 15:00:50,414 INFO L78 Accepts]: Start accepts. Automaton has 23136 states and 33170 transitions. Word has length 69 [2024-11-18 15:00:50,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:50,414 INFO L471 AbstractCegarLoop]: Abstraction has 23136 states and 33170 transitions. [2024-11-18 15:00:50,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 23136 states and 33170 transitions. [2024-11-18 15:00:50,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 15:00:50,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:50,419 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:50,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 15:00:50,419 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:50,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:50,420 INFO L85 PathProgramCache]: Analyzing trace with hash 362024722, now seen corresponding path program 1 times [2024-11-18 15:00:50,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:50,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170489249] [2024-11-18 15:00:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:50,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:00:50,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:50,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170489249] [2024-11-18 15:00:50,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170489249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:50,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:50,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:50,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780781606] [2024-11-18 15:00:50,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:50,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:00:50,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:50,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:00:50,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:00:50,541 INFO L87 Difference]: Start difference. First operand 23136 states and 33170 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:50,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:50,721 INFO L93 Difference]: Finished difference Result 33992 states and 48977 transitions. [2024-11-18 15:00:50,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:00:50,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-18 15:00:50,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:50,768 INFO L225 Difference]: With dead ends: 33992 [2024-11-18 15:00:50,768 INFO L226 Difference]: Without dead ends: 30846 [2024-11-18 15:00:50,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:00:50,782 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 964 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:50,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 1266 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:00:50,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30846 states. [2024-11-18 15:00:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30846 to 26261. [2024-11-18 15:00:51,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26261 states, 26260 states have (on average 1.4340822543792842) internal successors, (37659), 26260 states have internal predecessors, (37659), 0 states have call successors, (0), 0 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 15:00:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26261 states to 26261 states and 37659 transitions. [2024-11-18 15:00:51,216 INFO L78 Accepts]: Start accepts. Automaton has 26261 states and 37659 transitions. Word has length 69 [2024-11-18 15:00:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:51,216 INFO L471 AbstractCegarLoop]: Abstraction has 26261 states and 37659 transitions. [2024-11-18 15:00:51,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:51,217 INFO L276 IsEmpty]: Start isEmpty. Operand 26261 states and 37659 transitions. [2024-11-18 15:00:51,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 15:00:51,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:51,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:51,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 15:00:51,220 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:51,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:51,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1608289607, now seen corresponding path program 1 times [2024-11-18 15:00:51,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:51,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404233766] [2024-11-18 15:00:51,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:51,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:51,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:00:51,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:51,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404233766] [2024-11-18 15:00:51,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404233766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:51,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:51,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:51,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090804337] [2024-11-18 15:00:51,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:51,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:00:51,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:51,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:00:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 15:00:51,313 INFO L87 Difference]: Start difference. First operand 26261 states and 37659 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:51,580 INFO L93 Difference]: Finished difference Result 44439 states and 64123 transitions. [2024-11-18 15:00:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:00:51,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-18 15:00:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:51,623 INFO L225 Difference]: With dead ends: 44439 [2024-11-18 15:00:51,624 INFO L226 Difference]: Without dead ends: 37189 [2024-11-18 15:00:51,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:00:51,640 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1037 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:51,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1247 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:00:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37189 states. [2024-11-18 15:00:52,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37189 to 31796. [2024-11-18 15:00:52,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31796 states, 31795 states have (on average 1.434596634690989) internal successors, (45613), 31795 states have internal predecessors, (45613), 0 states have call successors, (0), 0 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 15:00:52,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31796 states to 31796 states and 45613 transitions. [2024-11-18 15:00:52,094 INFO L78 Accepts]: Start accepts. Automaton has 31796 states and 45613 transitions. Word has length 69 [2024-11-18 15:00:52,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:52,095 INFO L471 AbstractCegarLoop]: Abstraction has 31796 states and 45613 transitions. [2024-11-18 15:00:52,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:52,095 INFO L276 IsEmpty]: Start isEmpty. Operand 31796 states and 45613 transitions. [2024-11-18 15:00:52,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 15:00:52,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:52,100 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:52,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 15:00:52,100 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:52,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:52,101 INFO L85 PathProgramCache]: Analyzing trace with hash 534789540, now seen corresponding path program 1 times [2024-11-18 15:00:52,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:52,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136091355] [2024-11-18 15:00:52,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:52,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:52,143 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 15:00:52,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:52,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136091355] [2024-11-18 15:00:52,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136091355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:52,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:52,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:00:52,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201062027] [2024-11-18 15:00:52,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:52,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:00:52,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:52,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:00:52,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:00:52,145 INFO L87 Difference]: Start difference. First operand 31796 states and 45613 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:52,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:52,300 INFO L93 Difference]: Finished difference Result 64005 states and 91471 transitions. [2024-11-18 15:00:52,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:00:52,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-11-18 15:00:52,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:52,343 INFO L225 Difference]: With dead ends: 64005 [2024-11-18 15:00:52,343 INFO L226 Difference]: Without dead ends: 34689 [2024-11-18 15:00:52,366 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 15:00:52,367 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 150 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:52,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 522 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:00:52,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34689 states. [2024-11-18 15:00:53,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34689 to 31691. [2024-11-18 15:00:53,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31691 states, 31690 states have (on average 1.3971284316819186) internal successors, (44275), 31690 states have internal predecessors, (44275), 0 states have call successors, (0), 0 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 15:00:53,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31691 states to 31691 states and 44275 transitions. [2024-11-18 15:00:53,125 INFO L78 Accepts]: Start accepts. Automaton has 31691 states and 44275 transitions. Word has length 72 [2024-11-18 15:00:53,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:53,125 INFO L471 AbstractCegarLoop]: Abstraction has 31691 states and 44275 transitions. [2024-11-18 15:00:53,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:53,125 INFO L276 IsEmpty]: Start isEmpty. Operand 31691 states and 44275 transitions. [2024-11-18 15:00:53,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 15:00:53,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:53,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:53,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 15:00:53,129 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:53,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:53,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1186485623, now seen corresponding path program 1 times [2024-11-18 15:00:53,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:53,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754164930] [2024-11-18 15:00:53,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:53,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:53,227 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 15:00:53,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:53,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754164930] [2024-11-18 15:00:53,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754164930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:53,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:53,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:53,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217651921] [2024-11-18 15:00:53,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:53,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:00:53,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:53,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:00:53,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:00:53,229 INFO L87 Difference]: Start difference. First operand 31691 states and 44275 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:53,879 INFO L93 Difference]: Finished difference Result 75863 states and 105872 transitions. [2024-11-18 15:00:53,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:00:53,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-18 15:00:53,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:53,956 INFO L225 Difference]: With dead ends: 75863 [2024-11-18 15:00:53,957 INFO L226 Difference]: Without dead ends: 65633 [2024-11-18 15:00:53,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-18 15:00:53,966 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 1694 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:53,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 455 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:00:53,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65633 states. [2024-11-18 15:00:54,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65633 to 31715. [2024-11-18 15:00:54,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31715 states, 31714 states have (on average 1.3970801538752602) internal successors, (44307), 31714 states have internal predecessors, (44307), 0 states have call successors, (0), 0 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 15:00:54,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31715 states to 31715 states and 44307 transitions. [2024-11-18 15:00:54,871 INFO L78 Accepts]: Start accepts. Automaton has 31715 states and 44307 transitions. Word has length 74 [2024-11-18 15:00:54,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:54,872 INFO L471 AbstractCegarLoop]: Abstraction has 31715 states and 44307 transitions. [2024-11-18 15:00:54,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:54,872 INFO L276 IsEmpty]: Start isEmpty. Operand 31715 states and 44307 transitions. [2024-11-18 15:00:54,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 15:00:54,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:54,876 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:54,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 15:00:54,877 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:54,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:54,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1221801007, now seen corresponding path program 1 times [2024-11-18 15:00:54,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:54,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227205351] [2024-11-18 15:00:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:54,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:54,995 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 15:00:54,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:54,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227205351] [2024-11-18 15:00:54,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227205351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:54,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:54,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:54,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146940285] [2024-11-18 15:00:54,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:54,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:00:54,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:54,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:00:54,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:00:54,998 INFO L87 Difference]: Start difference. First operand 31715 states and 44307 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:55,576 INFO L93 Difference]: Finished difference Result 94137 states and 130618 transitions. [2024-11-18 15:00:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:00:55,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-18 15:00:55,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:55,688 INFO L225 Difference]: With dead ends: 94137 [2024-11-18 15:00:55,688 INFO L226 Difference]: Without dead ends: 82501 [2024-11-18 15:00:55,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-18 15:00:55,726 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 1464 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:55,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 457 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:00:55,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82501 states. [2024-11-18 15:00:56,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82501 to 31879. [2024-11-18 15:00:56,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31879 states, 31878 states have (on average 1.396229374490244) internal successors, (44509), 31878 states have internal predecessors, (44509), 0 states have call successors, (0), 0 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 15:00:56,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31879 states to 31879 states and 44509 transitions. [2024-11-18 15:00:56,564 INFO L78 Accepts]: Start accepts. Automaton has 31879 states and 44509 transitions. Word has length 74 [2024-11-18 15:00:56,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:56,564 INFO L471 AbstractCegarLoop]: Abstraction has 31879 states and 44509 transitions. [2024-11-18 15:00:56,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:56,565 INFO L276 IsEmpty]: Start isEmpty. Operand 31879 states and 44509 transitions. [2024-11-18 15:00:56,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 15:00:56,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:56,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:00:56,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 15:00:56,572 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:56,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash 64576706, now seen corresponding path program 1 times [2024-11-18 15:00:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:56,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288046367] [2024-11-18 15:00:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:56,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:56,654 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 15:00:56,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:56,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288046367] [2024-11-18 15:00:56,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288046367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:56,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:56,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:56,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578276653] [2024-11-18 15:00:56,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:56,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:00:56,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:56,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:00:56,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:00:56,656 INFO L87 Difference]: Start difference. First operand 31879 states and 44509 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:57,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:57,487 INFO L93 Difference]: Finished difference Result 74785 states and 103427 transitions. [2024-11-18 15:00:57,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:00:57,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-11-18 15:00:57,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:57,609 INFO L225 Difference]: With dead ends: 74785 [2024-11-18 15:00:57,609 INFO L226 Difference]: Without dead ends: 68934 [2024-11-18 15:00:57,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-18 15:00:57,633 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 1364 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:57,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 425 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:00:57,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68934 states. [2024-11-18 15:00:58,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68934 to 32140. [2024-11-18 15:00:58,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32140 states, 32139 states have (on average 1.3945673480817697) internal successors, (44820), 32139 states have internal predecessors, (44820), 0 states have call successors, (0), 0 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 15:00:58,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32140 states to 32140 states and 44820 transitions. [2024-11-18 15:00:58,233 INFO L78 Accepts]: Start accepts. Automaton has 32140 states and 44820 transitions. Word has length 74 [2024-11-18 15:00:58,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:58,233 INFO L471 AbstractCegarLoop]: Abstraction has 32140 states and 44820 transitions. [2024-11-18 15:00:58,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:00:58,233 INFO L276 IsEmpty]: Start isEmpty. Operand 32140 states and 44820 transitions. [2024-11-18 15:00:58,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-18 15:00:58,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:58,242 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] [2024-11-18 15:00:58,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 15:00:58,243 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:58,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:58,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1759632225, now seen corresponding path program 1 times [2024-11-18 15:00:58,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:58,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826642971] [2024-11-18 15:00:58,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:58,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:00:58,325 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 15:00:58,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:00:58,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826642971] [2024-11-18 15:00:58,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826642971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:00:58,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:00:58,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:00:58,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781458036] [2024-11-18 15:00:58,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:00:58,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:00:58,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:00:58,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:00:58,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:00:58,327 INFO L87 Difference]: Start difference. First operand 32140 states and 44820 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 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 15:00:58,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:00:58,713 INFO L93 Difference]: Finished difference Result 81139 states and 112527 transitions. [2024-11-18 15:00:58,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:00:58,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-18 15:00:58,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:00:58,784 INFO L225 Difference]: With dead ends: 81139 [2024-11-18 15:00:58,785 INFO L226 Difference]: Without dead ends: 60054 [2024-11-18 15:00:58,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-18 15:00:58,812 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 1178 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:00:58,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 388 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:00:58,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60054 states. [2024-11-18 15:00:59,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60054 to 32190. [2024-11-18 15:00:59,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32190 states, 32189 states have (on average 1.3942651216254) internal successors, (44880), 32189 states have internal predecessors, (44880), 0 states have call successors, (0), 0 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 15:00:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32190 states to 32190 states and 44880 transitions. [2024-11-18 15:00:59,559 INFO L78 Accepts]: Start accepts. Automaton has 32190 states and 44880 transitions. Word has length 75 [2024-11-18 15:00:59,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:00:59,559 INFO L471 AbstractCegarLoop]: Abstraction has 32190 states and 44880 transitions. [2024-11-18 15:00:59,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 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 15:00:59,559 INFO L276 IsEmpty]: Start isEmpty. Operand 32190 states and 44880 transitions. [2024-11-18 15:00:59,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-18 15:00:59,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:00:59,565 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 15:00:59,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 15:00:59,565 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:00:59,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:00:59,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1742464187, now seen corresponding path program 1 times [2024-11-18 15:00:59,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:00:59,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607294381] [2024-11-18 15:00:59,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:00:59,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:00:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:00,467 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 15:01:00,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:00,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607294381] [2024-11-18 15:01:00,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607294381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:00,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:00,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:01:00,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852497806] [2024-11-18 15:01:00,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:00,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:01:00,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:00,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:01:00,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:01:00,470 INFO L87 Difference]: Start difference. First operand 32190 states and 44880 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 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 15:01:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:01,651 INFO L93 Difference]: Finished difference Result 57902 states and 80767 transitions. [2024-11-18 15:01:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:01:01,651 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 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 15:01:01,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:01,723 INFO L225 Difference]: With dead ends: 57902 [2024-11-18 15:01:01,724 INFO L226 Difference]: Without dead ends: 54098 [2024-11-18 15:01:01,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:01:01,742 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 1068 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:01,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 2570 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:01:01,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54098 states. [2024-11-18 15:01:02,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54098 to 32206. [2024-11-18 15:01:02,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32206 states, 32205 states have (on average 1.3937897841950009) internal successors, (44887), 32205 states have internal predecessors, (44887), 0 states have call successors, (0), 0 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 15:01:02,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32206 states to 32206 states and 44887 transitions. [2024-11-18 15:01:02,207 INFO L78 Accepts]: Start accepts. Automaton has 32206 states and 44887 transitions. Word has length 76 [2024-11-18 15:01:02,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:02,207 INFO L471 AbstractCegarLoop]: Abstraction has 32206 states and 44887 transitions. [2024-11-18 15:01:02,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 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 15:01:02,207 INFO L276 IsEmpty]: Start isEmpty. Operand 32206 states and 44887 transitions. [2024-11-18 15:01:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 15:01:02,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:02,212 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 15:01:02,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 15:01:02,212 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:02,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:02,213 INFO L85 PathProgramCache]: Analyzing trace with hash 186689387, now seen corresponding path program 1 times [2024-11-18 15:01:02,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:02,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646728871] [2024-11-18 15:01:02,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:02,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:02,942 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 15:01:02,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:02,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646728871] [2024-11-18 15:01:02,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646728871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:02,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:02,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:01:02,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584931766] [2024-11-18 15:01:02,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:02,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:01:02,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:02,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:01:02,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:01:02,944 INFO L87 Difference]: Start difference. First operand 32206 states and 44887 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 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 15:01:03,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:03,746 INFO L93 Difference]: Finished difference Result 72326 states and 101292 transitions. [2024-11-18 15:01:03,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:01:03,747 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 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 15:01:03,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:03,832 INFO L225 Difference]: With dead ends: 72326 [2024-11-18 15:01:03,832 INFO L226 Difference]: Without dead ends: 59423 [2024-11-18 15:01:03,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:01:03,866 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 1157 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:03,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1889 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:01:03,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59423 states. [2024-11-18 15:01:04,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59423 to 32021. [2024-11-18 15:01:04,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32021 states, 32020 states have (on average 1.3944722048719551) internal successors, (44651), 32020 states have internal predecessors, (44651), 0 states have call successors, (0), 0 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 15:01:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32021 states to 32021 states and 44651 transitions. [2024-11-18 15:01:04,468 INFO L78 Accepts]: Start accepts. Automaton has 32021 states and 44651 transitions. Word has length 77 [2024-11-18 15:01:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:04,468 INFO L471 AbstractCegarLoop]: Abstraction has 32021 states and 44651 transitions. [2024-11-18 15:01:04,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 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 15:01:04,468 INFO L276 IsEmpty]: Start isEmpty. Operand 32021 states and 44651 transitions. [2024-11-18 15:01:04,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 15:01:04,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:04,474 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 15:01:04,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 15:01:04,474 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:04,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:04,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1944918895, now seen corresponding path program 1 times [2024-11-18 15:01:04,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:04,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745007968] [2024-11-18 15:01:04,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:04,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:04,512 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 15:01:04,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:04,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745007968] [2024-11-18 15:01:04,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745007968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:04,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:04,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:01:04,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676981773] [2024-11-18 15:01:04,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:04,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:01:04,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:04,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:01:04,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:01:04,514 INFO L87 Difference]: Start difference. First operand 32021 states and 44651 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 15:01:04,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:04,698 INFO L93 Difference]: Finished difference Result 67270 states and 93924 transitions. [2024-11-18 15:01:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:01:04,699 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 15:01:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:04,759 INFO L225 Difference]: With dead ends: 67270 [2024-11-18 15:01:04,759 INFO L226 Difference]: Without dead ends: 45766 [2024-11-18 15:01:04,786 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 15:01:04,787 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 174 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:04,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 407 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:01:04,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45766 states. [2024-11-18 15:01:05,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45766 to 45596. [2024-11-18 15:01:05,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45596 states, 45595 states have (on average 1.3984428117118104) internal successors, (63762), 45595 states have internal predecessors, (63762), 0 states have call successors, (0), 0 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 15:01:05,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45596 states to 45596 states and 63762 transitions. [2024-11-18 15:01:05,580 INFO L78 Accepts]: Start accepts. Automaton has 45596 states and 63762 transitions. Word has length 77 [2024-11-18 15:01:05,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:05,580 INFO L471 AbstractCegarLoop]: Abstraction has 45596 states and 63762 transitions. [2024-11-18 15:01:05,580 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 15:01:05,580 INFO L276 IsEmpty]: Start isEmpty. Operand 45596 states and 63762 transitions. [2024-11-18 15:01:05,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 15:01:05,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:05,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:01:05,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 15:01:05,588 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:05,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:05,588 INFO L85 PathProgramCache]: Analyzing trace with hash 101278650, now seen corresponding path program 1 times [2024-11-18 15:01:05,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:05,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383622694] [2024-11-18 15:01:05,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:05,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:05,856 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 15:01:05,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:05,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383622694] [2024-11-18 15:01:05,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383622694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:05,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:05,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:01:05,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679175682] [2024-11-18 15:01:05,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:05,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 15:01:05,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:05,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 15:01:05,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 15:01:05,858 INFO L87 Difference]: Start difference. First operand 45596 states and 63762 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 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 15:01:06,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:06,676 INFO L93 Difference]: Finished difference Result 131217 states and 183661 transitions. [2024-11-18 15:01:06,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 15:01:06,677 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 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 15:01:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:06,782 INFO L225 Difference]: With dead ends: 131217 [2024-11-18 15:01:06,783 INFO L226 Difference]: Without dead ends: 86536 [2024-11-18 15:01:06,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:01:06,839 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 1052 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:06,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 1026 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 15:01:06,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86536 states. [2024-11-18 15:01:07,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86536 to 45397. [2024-11-18 15:01:08,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45397 states, 45396 states have (on average 1.398691514670896) internal successors, (63495), 45396 states have internal predecessors, (63495), 0 states have call successors, (0), 0 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 15:01:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45397 states to 45397 states and 63495 transitions. [2024-11-18 15:01:08,089 INFO L78 Accepts]: Start accepts. Automaton has 45397 states and 63495 transitions. Word has length 80 [2024-11-18 15:01:08,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:08,089 INFO L471 AbstractCegarLoop]: Abstraction has 45397 states and 63495 transitions. [2024-11-18 15:01:08,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 9 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 15:01:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 45397 states and 63495 transitions. [2024-11-18 15:01:08,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 15:01:08,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:08,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:01:08,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 15:01:08,096 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:08,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1600732747, now seen corresponding path program 1 times [2024-11-18 15:01:08,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:08,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121242800] [2024-11-18 15:01:08,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:08,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:08,149 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 15:01:08,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:08,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121242800] [2024-11-18 15:01:08,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121242800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:08,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:08,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:01:08,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463840373] [2024-11-18 15:01:08,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:08,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:01:08,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:08,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:01:08,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:01:08,152 INFO L87 Difference]: Start difference. First operand 45397 states and 63495 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:01:08,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:08,324 INFO L93 Difference]: Finished difference Result 66467 states and 92763 transitions. [2024-11-18 15:01:08,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:01:08,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-18 15:01:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:08,385 INFO L225 Difference]: With dead ends: 66467 [2024-11-18 15:01:08,386 INFO L226 Difference]: Without dead ends: 40545 [2024-11-18 15:01:08,417 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 15:01:08,418 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 143 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:08,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 487 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:01:08,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40545 states. [2024-11-18 15:01:09,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40545 to 40543. [2024-11-18 15:01:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40543 states, 40542 states have (on average 1.381801588476148) internal successors, (56021), 40542 states have internal predecessors, (56021), 0 states have call successors, (0), 0 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 15:01:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40543 states to 40543 states and 56021 transitions. [2024-11-18 15:01:09,293 INFO L78 Accepts]: Start accepts. Automaton has 40543 states and 56021 transitions. Word has length 81 [2024-11-18 15:01:09,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:09,294 INFO L471 AbstractCegarLoop]: Abstraction has 40543 states and 56021 transitions. [2024-11-18 15:01:09,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:01:09,294 INFO L276 IsEmpty]: Start isEmpty. Operand 40543 states and 56021 transitions. [2024-11-18 15:01:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-18 15:01:09,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:09,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:01:09,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 15:01:09,302 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:09,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:09,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1688072129, now seen corresponding path program 1 times [2024-11-18 15:01:09,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:09,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140804372] [2024-11-18 15:01:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:09,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:09,731 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 15:01:09,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:09,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140804372] [2024-11-18 15:01:09,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140804372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:09,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:09,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 15:01:09,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430092553] [2024-11-18 15:01:09,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:09,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 15:01:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 15:01:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:01:09,734 INFO L87 Difference]: Start difference. First operand 40543 states and 56021 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:01:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:10,625 INFO L93 Difference]: Finished difference Result 64651 states and 89270 transitions. [2024-11-18 15:01:10,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:01:10,626 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-18 15:01:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:10,695 INFO L225 Difference]: With dead ends: 64651 [2024-11-18 15:01:10,695 INFO L226 Difference]: Without dead ends: 59789 [2024-11-18 15:01:10,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-18 15:01:10,716 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1294 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:10,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1812 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 15:01:10,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59789 states. [2024-11-18 15:01:11,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59789 to 40507. [2024-11-18 15:01:11,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40507 states, 40506 states have (on average 1.3819187280896656) internal successors, (55976), 40506 states have internal predecessors, (55976), 0 states have call successors, (0), 0 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 15:01:11,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40507 states to 40507 states and 55976 transitions. [2024-11-18 15:01:11,203 INFO L78 Accepts]: Start accepts. Automaton has 40507 states and 55976 transitions. Word has length 82 [2024-11-18 15:01:11,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:11,204 INFO L471 AbstractCegarLoop]: Abstraction has 40507 states and 55976 transitions. [2024-11-18 15:01:11,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:01:11,204 INFO L276 IsEmpty]: Start isEmpty. Operand 40507 states and 55976 transitions. [2024-11-18 15:01:11,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-18 15:01:11,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:11,209 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:01:11,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 15:01:11,210 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:11,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:11,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1800307277, now seen corresponding path program 1 times [2024-11-18 15:01:11,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:11,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511487338] [2024-11-18 15:01:11,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:11,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:11,264 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 15:01:11,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:11,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511487338] [2024-11-18 15:01:11,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511487338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:11,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:11,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:01:11,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335367362] [2024-11-18 15:01:11,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:11,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:01:11,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:11,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:01:11,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:01:11,269 INFO L87 Difference]: Start difference. First operand 40507 states and 55976 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:01:11,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:11,635 INFO L93 Difference]: Finished difference Result 79622 states and 110192 transitions. [2024-11-18 15:01:11,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:01:11,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-18 15:01:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:11,704 INFO L225 Difference]: With dead ends: 79622 [2024-11-18 15:01:11,705 INFO L226 Difference]: Without dead ends: 55397 [2024-11-18 15:01:11,734 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 15:01:11,736 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 174 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:11,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 346 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:01:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55397 states. [2024-11-18 15:01:12,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55397 to 39321. [2024-11-18 15:01:12,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39321 states, 39320 states have (on average 1.3802136317395728) internal successors, (54270), 39320 states have internal predecessors, (54270), 0 states have call successors, (0), 0 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 15:01:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39321 states to 39321 states and 54270 transitions. [2024-11-18 15:01:12,345 INFO L78 Accepts]: Start accepts. Automaton has 39321 states and 54270 transitions. Word has length 82 [2024-11-18 15:01:12,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:12,345 INFO L471 AbstractCegarLoop]: Abstraction has 39321 states and 54270 transitions. [2024-11-18 15:01:12,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:01:12,345 INFO L276 IsEmpty]: Start isEmpty. Operand 39321 states and 54270 transitions. [2024-11-18 15:01:12,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 15:01:12,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:12,358 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 15:01:12,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 15:01:12,358 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:12,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:12,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1641215798, now seen corresponding path program 1 times [2024-11-18 15:01:12,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:12,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692769263] [2024-11-18 15:01:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:12,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:01:12,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:12,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692769263] [2024-11-18 15:01:12,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692769263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:12,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:12,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:01:12,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085461977] [2024-11-18 15:01:12,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:12,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:01:12,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:12,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:01:12,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:01:12,458 INFO L87 Difference]: Start difference. First operand 39321 states and 54270 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 15:01:12,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:12,720 INFO L93 Difference]: Finished difference Result 78968 states and 109858 transitions. [2024-11-18 15:01:12,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:01:12,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-18 15:01:12,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:12,980 INFO L225 Difference]: With dead ends: 78968 [2024-11-18 15:01:12,981 INFO L226 Difference]: Without dead ends: 58169 [2024-11-18 15:01:13,004 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 15:01:13,005 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 115 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 488 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 15:01:13,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 488 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:01:13,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58169 states. [2024-11-18 15:01:13,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58169 to 56312. [2024-11-18 15:01:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56312 states, 56311 states have (on average 1.3791266360036227) internal successors, (77660), 56311 states have internal predecessors, (77660), 0 states have call successors, (0), 0 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 15:01:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56312 states to 56312 states and 77660 transitions. [2024-11-18 15:01:13,635 INFO L78 Accepts]: Start accepts. Automaton has 56312 states and 77660 transitions. Word has length 90 [2024-11-18 15:01:13,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:13,636 INFO L471 AbstractCegarLoop]: Abstraction has 56312 states and 77660 transitions. [2024-11-18 15:01:13,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 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 15:01:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 56312 states and 77660 transitions. [2024-11-18 15:01:13,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 15:01:13,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:13,644 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-18 15:01:13,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-18 15:01:13,645 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:13,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:13,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1379057684, now seen corresponding path program 1 times [2024-11-18 15:01:13,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:13,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583144959] [2024-11-18 15:01:13,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:13,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:13,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:01:13,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:13,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583144959] [2024-11-18 15:01:13,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583144959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:13,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:13,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:01:13,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404804734] [2024-11-18 15:01:13,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:13,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:01:13,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:13,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:01:13,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:01:13,752 INFO L87 Difference]: Start difference. First operand 56312 states and 77660 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 15:01:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:14,443 INFO L93 Difference]: Finished difference Result 115113 states and 159262 transitions. [2024-11-18 15:01:14,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:01:14,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-18 15:01:14,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:14,546 INFO L225 Difference]: With dead ends: 115113 [2024-11-18 15:01:14,546 INFO L226 Difference]: Without dead ends: 92610 [2024-11-18 15:01:14,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:01:14,576 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 1577 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:14,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 441 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:01:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92610 states. [2024-11-18 15:01:15,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92610 to 56824. [2024-11-18 15:01:15,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56824 states, 56823 states have (on average 1.3776287770797035) internal successors, (78281), 56823 states have internal predecessors, (78281), 0 states have call successors, (0), 0 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 15:01:15,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56824 states to 56824 states and 78281 transitions. [2024-11-18 15:01:15,549 INFO L78 Accepts]: Start accepts. Automaton has 56824 states and 78281 transitions. Word has length 95 [2024-11-18 15:01:15,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:15,551 INFO L471 AbstractCegarLoop]: Abstraction has 56824 states and 78281 transitions. [2024-11-18 15:01:15,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 15:01:15,551 INFO L276 IsEmpty]: Start isEmpty. Operand 56824 states and 78281 transitions. [2024-11-18 15:01:15,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 15:01:15,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:15,561 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-18 15:01:15,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-18 15:01:15,561 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:15,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:15,562 INFO L85 PathProgramCache]: Analyzing trace with hash 256876660, now seen corresponding path program 1 times [2024-11-18 15:01:15,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:15,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923346869] [2024-11-18 15:01:15,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:01:15,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:15,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923346869] [2024-11-18 15:01:15,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923346869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:15,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:15,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:01:15,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603268750] [2024-11-18 15:01:15,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:15,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:01:15,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:15,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:01:15,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:01:15,642 INFO L87 Difference]: Start difference. First operand 56824 states and 78281 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 15:01:15,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:15,806 INFO L93 Difference]: Finished difference Result 71192 states and 97681 transitions. [2024-11-18 15:01:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:01:15,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-18 15:01:15,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:15,851 INFO L225 Difference]: With dead ends: 71192 [2024-11-18 15:01:15,851 INFO L226 Difference]: Without dead ends: 45376 [2024-11-18 15:01:15,873 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 15:01:15,874 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 142 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:15,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 571 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:01:15,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45376 states. [2024-11-18 15:01:16,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45376 to 45374. [2024-11-18 15:01:16,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45374 states, 45373 states have (on average 1.3575033610296872) internal successors, (61594), 45373 states have internal predecessors, (61594), 0 states have call successors, (0), 0 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 15:01:16,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45374 states to 45374 states and 61594 transitions. [2024-11-18 15:01:16,292 INFO L78 Accepts]: Start accepts. Automaton has 45374 states and 61594 transitions. Word has length 95 [2024-11-18 15:01:16,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:16,292 INFO L471 AbstractCegarLoop]: Abstraction has 45374 states and 61594 transitions. [2024-11-18 15:01:16,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 15:01:16,293 INFO L276 IsEmpty]: Start isEmpty. Operand 45374 states and 61594 transitions. [2024-11-18 15:01:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 15:01:16,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:16,297 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-11-18 15:01:16,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-18 15:01:16,298 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:16,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash -628052237, now seen corresponding path program 1 times [2024-11-18 15:01:16,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:16,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105099798] [2024-11-18 15:01:16,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:16,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:16,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:01:16,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:16,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105099798] [2024-11-18 15:01:16,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105099798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:16,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:16,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:01:16,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828295597] [2024-11-18 15:01:16,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:16,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:01:16,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:16,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:01:16,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:01:16,666 INFO L87 Difference]: Start difference. First operand 45374 states and 61594 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 15:01:17,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:17,338 INFO L93 Difference]: Finished difference Result 145485 states and 199564 transitions. [2024-11-18 15:01:17,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:01:17,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-18 15:01:17,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:17,527 INFO L225 Difference]: With dead ends: 145485 [2024-11-18 15:01:17,528 INFO L226 Difference]: Without dead ends: 112120 [2024-11-18 15:01:17,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:01:17,584 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 1400 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:17,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 441 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:01:17,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112120 states. [2024-11-18 15:01:18,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112120 to 63722. [2024-11-18 15:01:18,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63722 states, 63721 states have (on average 1.3747430203543574) internal successors, (87600), 63721 states have internal predecessors, (87600), 0 states have call successors, (0), 0 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 15:01:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63722 states to 63722 states and 87600 transitions. [2024-11-18 15:01:18,947 INFO L78 Accepts]: Start accepts. Automaton has 63722 states and 87600 transitions. Word has length 96 [2024-11-18 15:01:18,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:18,947 INFO L471 AbstractCegarLoop]: Abstraction has 63722 states and 87600 transitions. [2024-11-18 15:01:18,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 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 15:01:18,948 INFO L276 IsEmpty]: Start isEmpty. Operand 63722 states and 87600 transitions. [2024-11-18 15:01:18,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-18 15:01:18,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:18,955 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2024-11-18 15:01:18,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-18 15:01:18,955 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:18,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:18,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1827343764, now seen corresponding path program 1 times [2024-11-18 15:01:18,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:18,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999488002] [2024-11-18 15:01:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:18,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:19,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:01:19,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:19,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999488002] [2024-11-18 15:01:19,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999488002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:19,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:19,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 15:01:19,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100777294] [2024-11-18 15:01:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:19,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 15:01:19,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:19,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 15:01:19,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:01:19,074 INFO L87 Difference]: Start difference. First operand 63722 states and 87600 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 15:01:19,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:19,785 INFO L93 Difference]: Finished difference Result 170955 states and 235849 transitions. [2024-11-18 15:01:19,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:01:19,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-11-18 15:01:19,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:20,003 INFO L225 Difference]: With dead ends: 170955 [2024-11-18 15:01:20,003 INFO L226 Difference]: Without dead ends: 142484 [2024-11-18 15:01:20,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:01:20,884 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 1297 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:01:20,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 411 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:01:20,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142484 states. [2024-11-18 15:01:22,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142484 to 94484. [2024-11-18 15:01:22,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94484 states, 94483 states have (on average 1.375422033593345) internal successors, (129954), 94483 states have internal predecessors, (129954), 0 states have call successors, (0), 0 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 15:01:22,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94484 states to 94484 states and 129954 transitions. [2024-11-18 15:01:22,542 INFO L78 Accepts]: Start accepts. Automaton has 94484 states and 129954 transitions. Word has length 98 [2024-11-18 15:01:22,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:22,543 INFO L471 AbstractCegarLoop]: Abstraction has 94484 states and 129954 transitions. [2024-11-18 15:01:22,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 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 15:01:22,543 INFO L276 IsEmpty]: Start isEmpty. Operand 94484 states and 129954 transitions. [2024-11-18 15:01:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 15:01:22,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:22,561 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 15:01:22,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-18 15:01:22,562 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:22,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:22,566 INFO L85 PathProgramCache]: Analyzing trace with hash 57149073, now seen corresponding path program 1 times [2024-11-18 15:01:22,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:22,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304450581] [2024-11-18 15:01:22,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:22,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:22,634 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-18 15:01:22,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:22,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304450581] [2024-11-18 15:01:22,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304450581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:22,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:22,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:01:22,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528151451] [2024-11-18 15:01:22,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:22,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:01:22,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:22,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:01:22,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:01:22,636 INFO L87 Difference]: Start difference. First operand 94484 states and 129954 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 15:01:23,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:23,059 INFO L93 Difference]: Finished difference Result 226062 states and 309272 transitions. [2024-11-18 15:01:23,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:01:23,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 110 [2024-11-18 15:01:23,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:23,217 INFO L225 Difference]: With dead ends: 226062 [2024-11-18 15:01:23,218 INFO L226 Difference]: Without dead ends: 132808 [2024-11-18 15:01:23,290 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 15:01:23,291 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 108 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 475 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 15:01:23,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 475 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:01:23,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132808 states. [2024-11-18 15:01:25,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132808 to 127546. [2024-11-18 15:01:25,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127546 states, 127545 states have (on average 1.3565957113175742) internal successors, (173027), 127545 states have internal predecessors, (173027), 0 states have call successors, (0), 0 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 15:01:26,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127546 states to 127546 states and 173027 transitions. [2024-11-18 15:01:26,033 INFO L78 Accepts]: Start accepts. Automaton has 127546 states and 173027 transitions. Word has length 110 [2024-11-18 15:01:26,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:26,033 INFO L471 AbstractCegarLoop]: Abstraction has 127546 states and 173027 transitions. [2024-11-18 15:01:26,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 15:01:26,034 INFO L276 IsEmpty]: Start isEmpty. Operand 127546 states and 173027 transitions. [2024-11-18 15:01:26,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 15:01:26,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:26,050 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 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] [2024-11-18 15:01:26,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-18 15:01:26,051 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:26,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:26,052 INFO L85 PathProgramCache]: Analyzing trace with hash -848560941, now seen corresponding path program 1 times [2024-11-18 15:01:26,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:26,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57921938] [2024-11-18 15:01:26,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:26,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-18 15:01:26,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:26,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57921938] [2024-11-18 15:01:26,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57921938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:26,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:26,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:01:26,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415024588] [2024-11-18 15:01:26,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:26,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:01:26,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:26,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:01:26,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:01:26,150 INFO L87 Difference]: Start difference. First operand 127546 states and 173027 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 15:01:27,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:27,452 INFO L93 Difference]: Finished difference Result 294216 states and 396651 transitions. [2024-11-18 15:01:27,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:01:27,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 111 [2024-11-18 15:01:27,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:27,757 INFO L225 Difference]: With dead ends: 294216 [2024-11-18 15:01:27,758 INFO L226 Difference]: Without dead ends: 167788 [2024-11-18 15:01:27,787 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 15:01:27,791 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 98 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 467 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 15:01:27,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 467 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:01:27,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167788 states. [2024-11-18 15:01:29,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167788 to 158360. [2024-11-18 15:01:29,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158360 states, 158359 states have (on average 1.3307484891922783) internal successors, (210736), 158359 states have internal predecessors, (210736), 0 states have call successors, (0), 0 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 15:01:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158360 states to 158360 states and 210736 transitions. [2024-11-18 15:01:29,628 INFO L78 Accepts]: Start accepts. Automaton has 158360 states and 210736 transitions. Word has length 111 [2024-11-18 15:01:29,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:29,628 INFO L471 AbstractCegarLoop]: Abstraction has 158360 states and 210736 transitions. [2024-11-18 15:01:29,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 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 15:01:29,629 INFO L276 IsEmpty]: Start isEmpty. Operand 158360 states and 210736 transitions. [2024-11-18 15:01:29,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 15:01:29,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:29,638 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1] [2024-11-18 15:01:29,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-18 15:01:29,638 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:29,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:29,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1229706858, now seen corresponding path program 1 times [2024-11-18 15:01:29,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:29,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559527831] [2024-11-18 15:01:29,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:29,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 15:01:30,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:30,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559527831] [2024-11-18 15:01:30,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559527831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:01:30,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:01:30,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:01:30,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934538293] [2024-11-18 15:01:30,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:01:30,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:01:30,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:01:30,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:01:30,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:01:30,421 INFO L87 Difference]: Start difference. First operand 158360 states and 210736 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 15:01:31,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:01:31,734 INFO L93 Difference]: Finished difference Result 429263 states and 571369 transitions. [2024-11-18 15:01:31,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:01:31,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 112 [2024-11-18 15:01:31,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:01:32,076 INFO L225 Difference]: With dead ends: 429263 [2024-11-18 15:01:32,076 INFO L226 Difference]: Without dead ends: 261056 [2024-11-18 15:01:32,220 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 15:01:32,221 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 87 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 460 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 15:01:32,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 460 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:01:33,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261056 states. [2024-11-18 15:01:35,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261056 to 231394. [2024-11-18 15:01:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231394 states, 231393 states have (on average 1.3211851698193118) internal successors, (305713), 231393 states have internal predecessors, (305713), 0 states have call successors, (0), 0 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 15:01:36,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231394 states to 231394 states and 305713 transitions. [2024-11-18 15:01:36,224 INFO L78 Accepts]: Start accepts. Automaton has 231394 states and 305713 transitions. Word has length 112 [2024-11-18 15:01:36,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:01:36,225 INFO L471 AbstractCegarLoop]: Abstraction has 231394 states and 305713 transitions. [2024-11-18 15:01:36,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 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 15:01:36,225 INFO L276 IsEmpty]: Start isEmpty. Operand 231394 states and 305713 transitions. [2024-11-18 15:01:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 15:01:36,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:01:36,238 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:01:36,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-18 15:01:36,238 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:01:36,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:01:36,239 INFO L85 PathProgramCache]: Analyzing trace with hash 665223272, now seen corresponding path program 1 times [2024-11-18 15:01:36,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:01:36,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222686450] [2024-11-18 15:01:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:36,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:01:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:36,542 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:01:36,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:01:36,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222686450] [2024-11-18 15:01:36,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222686450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:01:36,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563764989] [2024-11-18 15:01:36,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:01:36,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:01:36,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:01:36,545 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 15:01:36,546 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 15:01:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:01:36,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-18 15:01:36,795 INFO L278 TraceCheckSpWp]: Computing forward predicates...