./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.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 a5deaf1c7eecf4d76182f6b98ab14efecb2cf3c3c2e7d8162af75087f90c331b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:35:30,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:35:30,544 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:35:30,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:35:30,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:35:30,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:35:30,565 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:35:30,565 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:35:30,565 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:35:30,566 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:35:30,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:35:30,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:35:30,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:35:30,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:35:30,567 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:35:30,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:35:30,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:35:30,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:35:30,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:35:30,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:35:30,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:35:30,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:35:30,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:35:30,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:35:30,570 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:35:30,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:35:30,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:35:30,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:35:30,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:35:30,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:35:30,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:35:30,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:35:30,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:35:30,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:35:30,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:35:30,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:35:30,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:35:30,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:35:30,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:35:30,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:35:30,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:35:30,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:35:30,576 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5deaf1c7eecf4d76182f6b98ab14efecb2cf3c3c2e7d8162af75087f90c331b [2024-11-08 15:35:30,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:35:30,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:35:30,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:35:30,845 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:35:30,845 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:35:30,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2024-11-08 15:35:32,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:35:32,469 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:35:32,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2024-11-08 15:35:32,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69feae731/d420032f17344ae4b270019aa3b4b318/FLAG3ae3bc37f [2024-11-08 15:35:32,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69feae731/d420032f17344ae4b270019aa3b4b318 [2024-11-08 15:35:32,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:35:32,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:35:32,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:35:32,509 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:35:32,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:35:32,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d5b6fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32, skipping insertion in model container [2024-11-08 15:35:32,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:35:32,756 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/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c[6844,6857] [2024-11-08 15:35:32,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:35:32,768 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:35:32,807 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/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c[6844,6857] [2024-11-08 15:35:32,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:35:32,822 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:35:32,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32 WrapperNode [2024-11-08 15:35:32,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:35:32,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:35:32,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:35:32,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:35:32,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,858 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 250 [2024-11-08 15:35:32,859 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:35:32,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:35:32,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:35:32,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:35:32,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,876 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,901 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]. [2024-11-08 15:35:32,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:35:32,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:35:32,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:35:32,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:35:32,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (1/1) ... [2024-11-08 15:35:32,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:35:32,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:35:32,952 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) [2024-11-08 15:35:32,957 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 [2024-11-08 15:35:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:35:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:35:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:35:33,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:35:33,120 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:35:33,123 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:35:33,446 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-08 15:35:33,446 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:35:33,463 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:35:33,463 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:35:33,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:35:33 BoogieIcfgContainer [2024-11-08 15:35:33,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:35:33,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:35:33,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:35:33,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:35:33,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:35:32" (1/3) ... [2024-11-08 15:35:33,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0c100f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:35:33, skipping insertion in model container [2024-11-08 15:35:33,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:35:32" (2/3) ... [2024-11-08 15:35:33,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0c100f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:35:33, skipping insertion in model container [2024-11-08 15:35:33,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:35:33" (3/3) ... [2024-11-08 15:35:33,470 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2024-11-08 15:35:33,483 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:35:33,483 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:35:33,526 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:35:33,534 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;@19acc74b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:35:33,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:35:33,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 65 states have (on average 1.7076923076923076) internal successors, (111), 66 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:33,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 15:35:33,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:33,551 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] [2024-11-08 15:35:33,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:33,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:33,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1570955630, now seen corresponding path program 1 times [2024-11-08 15:35:33,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:33,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290124566] [2024-11-08 15:35:33,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:33,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:33,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:33,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290124566] [2024-11-08 15:35:33,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290124566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:33,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:33,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:35:33,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611772048] [2024-11-08 15:35:33,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:33,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:35:33,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:34,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:35:34,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:35:34,041 INFO L87 Difference]: Start difference. First operand has 67 states, 65 states have (on average 1.7076923076923076) internal successors, (111), 66 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:34,198 INFO L93 Difference]: Finished difference Result 155 states and 253 transitions. [2024-11-08 15:35:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:35:34,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-08 15:35:34,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:34,208 INFO L225 Difference]: With dead ends: 155 [2024-11-08 15:35:34,208 INFO L226 Difference]: Without dead ends: 103 [2024-11-08 15:35:34,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:35:34,213 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 63 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:34,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 391 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:35:34,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-08 15:35:34,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 63. [2024-11-08 15:35:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.403225806451613) internal successors, (87), 62 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 87 transitions. [2024-11-08 15:35:34,242 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 87 transitions. Word has length 25 [2024-11-08 15:35:34,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:34,242 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 87 transitions. [2024-11-08 15:35:34,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,242 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2024-11-08 15:35:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 15:35:34,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:34,244 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] [2024-11-08 15:35:34,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:35:34,244 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:34,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:34,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1519282340, now seen corresponding path program 1 times [2024-11-08 15:35:34,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:34,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501544635] [2024-11-08 15:35:34,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:34,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:34,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:34,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501544635] [2024-11-08 15:35:34,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501544635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:34,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:34,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:35:34,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664535042] [2024-11-08 15:35:34,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:34,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:35:34,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:34,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:35:34,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:35:34,434 INFO L87 Difference]: Start difference. First operand 63 states and 87 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:34,520 INFO L93 Difference]: Finished difference Result 223 states and 343 transitions. [2024-11-08 15:35:34,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:35:34,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2024-11-08 15:35:34,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:34,523 INFO L225 Difference]: With dead ends: 223 [2024-11-08 15:35:34,523 INFO L226 Difference]: Without dead ends: 183 [2024-11-08 15:35:34,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:35:34,525 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 362 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:34,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 323 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-08 15:35:34,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 101. [2024-11-08 15:35:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.48) internal successors, (148), 100 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 148 transitions. [2024-11-08 15:35:34,548 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 148 transitions. Word has length 41 [2024-11-08 15:35:34,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:34,548 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 148 transitions. [2024-11-08 15:35:34,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,549 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 148 transitions. [2024-11-08 15:35:34,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-08 15:35:34,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:34,550 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] [2024-11-08 15:35:34,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:35:34,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:34,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:34,551 INFO L85 PathProgramCache]: Analyzing trace with hash -530211178, now seen corresponding path program 1 times [2024-11-08 15:35:34,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:34,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678308727] [2024-11-08 15:35:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:34,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:34,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:34,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:34,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678308727] [2024-11-08 15:35:34,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678308727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:34,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:34,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:35:34,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686375266] [2024-11-08 15:35:34,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:34,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:35:34,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:34,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:35:34,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:35:34,787 INFO L87 Difference]: Start difference. First operand 101 states and 148 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:34,804 INFO L93 Difference]: Finished difference Result 109 states and 157 transitions. [2024-11-08 15:35:34,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:35:34,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-11-08 15:35:34,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:34,806 INFO L225 Difference]: With dead ends: 109 [2024-11-08 15:35:34,806 INFO L226 Difference]: Without dead ends: 107 [2024-11-08 15:35:34,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:35:34,807 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:34,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:34,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-08 15:35:34,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-08 15:35:34,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.4528301886792452) internal successors, (154), 106 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 154 transitions. [2024-11-08 15:35:34,814 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 154 transitions. Word has length 42 [2024-11-08 15:35:34,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:34,814 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 154 transitions. [2024-11-08 15:35:34,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,815 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 154 transitions. [2024-11-08 15:35:34,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 15:35:34,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:34,816 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] [2024-11-08 15:35:34,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:35:34,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:34,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:34,817 INFO L85 PathProgramCache]: Analyzing trace with hash 795901116, now seen corresponding path program 1 times [2024-11-08 15:35:34,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:34,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553158011] [2024-11-08 15:35:34,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:34,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:34,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:34,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553158011] [2024-11-08 15:35:34,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553158011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:34,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:34,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:35:34,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718888594] [2024-11-08 15:35:34,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:34,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:35:34,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:34,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:35:34,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:35:34,875 INFO L87 Difference]: Start difference. First operand 107 states and 154 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:34,895 INFO L93 Difference]: Finished difference Result 260 states and 391 transitions. [2024-11-08 15:35:34,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:35:34,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-11-08 15:35:34,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:34,897 INFO L225 Difference]: With dead ends: 260 [2024-11-08 15:35:34,897 INFO L226 Difference]: Without dead ends: 176 [2024-11-08 15:35:34,897 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 [2024-11-08 15:35:34,898 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 37 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:34,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 148 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:34,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-08 15:35:34,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2024-11-08 15:35:34,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.4855491329479769) internal successors, (257), 173 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 257 transitions. [2024-11-08 15:35:34,920 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 257 transitions. Word has length 43 [2024-11-08 15:35:34,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:34,920 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 257 transitions. [2024-11-08 15:35:34,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:34,920 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 257 transitions. [2024-11-08 15:35:34,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 15:35:34,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:34,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:35:34,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:35:34,922 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:34,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:34,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2099561413, now seen corresponding path program 1 times [2024-11-08 15:35:34,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:34,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900943107] [2024-11-08 15:35:34,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:34,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:34,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:34,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:34,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900943107] [2024-11-08 15:35:34,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900943107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:34,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:34,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:35:34,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997647822] [2024-11-08 15:35:34,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:34,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:35:34,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:34,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:35:34,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:35:34,979 INFO L87 Difference]: Start difference. First operand 174 states and 257 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:35,007 INFO L93 Difference]: Finished difference Result 328 states and 494 transitions. [2024-11-08 15:35:35,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:35:35,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-11-08 15:35:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:35,009 INFO L225 Difference]: With dead ends: 328 [2024-11-08 15:35:35,009 INFO L226 Difference]: Without dead ends: 244 [2024-11-08 15:35:35,010 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 [2024-11-08 15:35:35,011 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 52 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:35,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 191 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:35,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-08 15:35:35,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 242. [2024-11-08 15:35:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 1.4896265560165975) internal successors, (359), 241 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 359 transitions. [2024-11-08 15:35:35,022 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 359 transitions. Word has length 43 [2024-11-08 15:35:35,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:35,022 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 359 transitions. [2024-11-08 15:35:35,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,022 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 359 transitions. [2024-11-08 15:35:35,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 15:35:35,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:35,023 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:35:35,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:35:35,024 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:35,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:35,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2130979889, now seen corresponding path program 1 times [2024-11-08 15:35:35,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:35,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818760885] [2024-11-08 15:35:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:35,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:35,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:35,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:35,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818760885] [2024-11-08 15:35:35,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818760885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:35,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:35,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:35:35,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765801610] [2024-11-08 15:35:35,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:35,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:35:35,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:35:35,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:35:35,062 INFO L87 Difference]: Start difference. First operand 242 states and 359 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:35,078 INFO L93 Difference]: Finished difference Result 628 states and 943 transitions. [2024-11-08 15:35:35,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:35:35,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2024-11-08 15:35:35,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:35,080 INFO L225 Difference]: With dead ends: 628 [2024-11-08 15:35:35,080 INFO L226 Difference]: Without dead ends: 411 [2024-11-08 15:35:35,081 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 [2024-11-08 15:35:35,082 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 44 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:35,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 178 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:35,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-08 15:35:35,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 409. [2024-11-08 15:35:35,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 408 states have (on average 1.4754901960784315) internal successors, (602), 408 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 602 transitions. [2024-11-08 15:35:35,093 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 602 transitions. Word has length 44 [2024-11-08 15:35:35,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:35,094 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 602 transitions. [2024-11-08 15:35:35,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,094 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 602 transitions. [2024-11-08 15:35:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 15:35:35,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:35,095 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] [2024-11-08 15:35:35,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:35:35,095 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:35,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:35,096 INFO L85 PathProgramCache]: Analyzing trace with hash 363298479, now seen corresponding path program 1 times [2024-11-08 15:35:35,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:35,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232516717] [2024-11-08 15:35:35,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:35,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:35,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:35,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232516717] [2024-11-08 15:35:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232516717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:35,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:35,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:35:35,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800960500] [2024-11-08 15:35:35,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:35,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:35:35,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:35,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:35:35,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:35:35,137 INFO L87 Difference]: Start difference. First operand 409 states and 602 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:35,158 INFO L93 Difference]: Finished difference Result 1081 states and 1588 transitions. [2024-11-08 15:35:35,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:35:35,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2024-11-08 15:35:35,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:35,162 INFO L225 Difference]: With dead ends: 1081 [2024-11-08 15:35:35,162 INFO L226 Difference]: Without dead ends: 697 [2024-11-08 15:35:35,162 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 [2024-11-08 15:35:35,164 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 48 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:35,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 191 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:35,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-08 15:35:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 695. [2024-11-08 15:35:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 694 states have (on average 1.4380403458213256) internal successors, (998), 694 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 998 transitions. [2024-11-08 15:35:35,182 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 998 transitions. Word has length 44 [2024-11-08 15:35:35,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:35,183 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 998 transitions. [2024-11-08 15:35:35,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,183 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 998 transitions. [2024-11-08 15:35:35,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 15:35:35,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:35,185 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:35:35,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:35:35,185 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:35,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:35,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2103986451, now seen corresponding path program 1 times [2024-11-08 15:35:35,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:35,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656460716] [2024-11-08 15:35:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:35,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:35,310 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:35,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:35,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656460716] [2024-11-08 15:35:35,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656460716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:35,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:35,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:35:35,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151542229] [2024-11-08 15:35:35,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:35,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:35:35,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:35,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:35:35,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:35:35,312 INFO L87 Difference]: Start difference. First operand 695 states and 998 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:35,340 INFO L93 Difference]: Finished difference Result 1367 states and 1972 transitions. [2024-11-08 15:35:35,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:35:35,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-08 15:35:35,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:35,343 INFO L225 Difference]: With dead ends: 1367 [2024-11-08 15:35:35,343 INFO L226 Difference]: Without dead ends: 697 [2024-11-08 15:35:35,343 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 [2024-11-08 15:35:35,344 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 41 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:35,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 182 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:35,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-08 15:35:35,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 695. [2024-11-08 15:35:35,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 694 states have (on average 1.420749279538905) internal successors, (986), 694 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 986 transitions. [2024-11-08 15:35:35,356 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 986 transitions. Word has length 62 [2024-11-08 15:35:35,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:35,358 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 986 transitions. [2024-11-08 15:35:35,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,358 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 986 transitions. [2024-11-08 15:35:35,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 15:35:35,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:35,359 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:35:35,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:35:35,361 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:35,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:35,361 INFO L85 PathProgramCache]: Analyzing trace with hash 618962962, now seen corresponding path program 1 times [2024-11-08 15:35:35,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:35,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040358550] [2024-11-08 15:35:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:35,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:35,450 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:35,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:35,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040358550] [2024-11-08 15:35:35,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040358550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:35,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:35,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:35:35,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422122257] [2024-11-08 15:35:35,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:35,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:35:35,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:35,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:35:35,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:35:35,452 INFO L87 Difference]: Start difference. First operand 695 states and 986 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:35,470 INFO L93 Difference]: Finished difference Result 1033 states and 1468 transitions. [2024-11-08 15:35:35,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:35:35,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-08 15:35:35,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:35,472 INFO L225 Difference]: With dead ends: 1033 [2024-11-08 15:35:35,473 INFO L226 Difference]: Without dead ends: 363 [2024-11-08 15:35:35,473 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 [2024-11-08 15:35:35,474 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 35 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:35,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 163 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:35,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-08 15:35:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 361. [2024-11-08 15:35:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.3888888888888888) internal successors, (500), 360 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 500 transitions. [2024-11-08 15:35:35,486 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 500 transitions. Word has length 62 [2024-11-08 15:35:35,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:35,487 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 500 transitions. [2024-11-08 15:35:35,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:35,487 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 500 transitions. [2024-11-08 15:35:35,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 15:35:35,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:35,487 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:35:35,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:35:35,488 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:35,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:35,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1005211281, now seen corresponding path program 1 times [2024-11-08 15:35:35,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:35,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706868545] [2024-11-08 15:35:35,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:35,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:35,646 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:35:35,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:35,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706868545] [2024-11-08 15:35:35,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706868545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:35:35,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100077391] [2024-11-08 15:35:35,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:35,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:35:35,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:35:35,654 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) [2024-11-08 15:35:35,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:35:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:35,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 15:35:35,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:35:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:36,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:35:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:36,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100077391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:35:36,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:35:36,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 8] total 14 [2024-11-08 15:35:36,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793144397] [2024-11-08 15:35:36,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:35:36,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 15:35:36,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:36,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 15:35:36,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:35:36,567 INFO L87 Difference]: Start difference. First operand 361 states and 500 transitions. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:37,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:37,305 INFO L93 Difference]: Finished difference Result 1621 states and 2280 transitions. [2024-11-08 15:35:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-08 15:35:37,306 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 0 states have call successors, (0), 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 62 [2024-11-08 15:35:37,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:37,311 INFO L225 Difference]: With dead ends: 1621 [2024-11-08 15:35:37,312 INFO L226 Difference]: Without dead ends: 1387 [2024-11-08 15:35:37,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=400, Invalid=1492, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 15:35:37,313 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 633 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:37,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1041 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:35:37,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-08 15:35:37,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1271. [2024-11-08 15:35:37,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 1.3937007874015748) internal successors, (1770), 1270 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:37,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1770 transitions. [2024-11-08 15:35:37,342 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1770 transitions. Word has length 62 [2024-11-08 15:35:37,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:37,342 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 1770 transitions. [2024-11-08 15:35:37,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:37,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1770 transitions. [2024-11-08 15:35:37,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 15:35:37,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:37,343 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:35:37,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 15:35:37,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 15:35:37,550 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:37,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:37,551 INFO L85 PathProgramCache]: Analyzing trace with hash 538897112, now seen corresponding path program 1 times [2024-11-08 15:35:37,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:37,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451055243] [2024-11-08 15:35:37,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:37,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:37,659 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 15:35:37,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:37,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451055243] [2024-11-08 15:35:37,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451055243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:37,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:37,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:35:37,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758693917] [2024-11-08 15:35:37,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:37,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:35:37,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:37,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:35:37,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:35:37,661 INFO L87 Difference]: Start difference. First operand 1271 states and 1770 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:37,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:37,780 INFO L93 Difference]: Finished difference Result 3149 states and 4422 transitions. [2024-11-08 15:35:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:35:37,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-11-08 15:35:37,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:37,788 INFO L225 Difference]: With dead ends: 3149 [2024-11-08 15:35:37,788 INFO L226 Difference]: Without dead ends: 2489 [2024-11-08 15:35:37,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:35:37,789 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 225 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:37,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 365 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:35:37,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2024-11-08 15:35:37,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 1887. [2024-11-08 15:35:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1887 states, 1886 states have (on average 1.3902439024390243) internal successors, (2622), 1886 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:37,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2622 transitions. [2024-11-08 15:35:37,834 INFO L78 Accepts]: Start accepts. Automaton has 1887 states and 2622 transitions. Word has length 63 [2024-11-08 15:35:37,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:37,836 INFO L471 AbstractCegarLoop]: Abstraction has 1887 states and 2622 transitions. [2024-11-08 15:35:37,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:37,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1887 states and 2622 transitions. [2024-11-08 15:35:37,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 15:35:37,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:37,837 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:35:37,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:35:37,837 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:37,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:37,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1576448234, now seen corresponding path program 1 times [2024-11-08 15:35:37,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:37,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002655046] [2024-11-08 15:35:37,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:37,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 15:35:37,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:37,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002655046] [2024-11-08 15:35:37,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002655046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:37,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:37,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:35:37,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455266056] [2024-11-08 15:35:37,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:37,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:35:37,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:37,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:35:37,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:35:37,938 INFO L87 Difference]: Start difference. First operand 1887 states and 2622 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:38,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:38,022 INFO L93 Difference]: Finished difference Result 3765 states and 5274 transitions. [2024-11-08 15:35:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:35:38,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 [2024-11-08 15:35:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:38,035 INFO L225 Difference]: With dead ends: 3765 [2024-11-08 15:35:38,035 INFO L226 Difference]: Without dead ends: 3105 [2024-11-08 15:35:38,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:35:38,038 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 223 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:38,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 394 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:38,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2024-11-08 15:35:38,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 2503. [2024-11-08 15:35:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2502 states have (on average 1.3884892086330936) internal successors, (3474), 2502 states have internal predecessors, (3474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 3474 transitions. [2024-11-08 15:35:38,125 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 3474 transitions. Word has length 63 [2024-11-08 15:35:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:38,125 INFO L471 AbstractCegarLoop]: Abstraction has 2503 states and 3474 transitions. [2024-11-08 15:35:38,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 3474 transitions. [2024-11-08 15:35:38,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 15:35:38,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:38,129 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:35:38,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:35:38,130 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:38,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:38,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1116171083, now seen corresponding path program 1 times [2024-11-08 15:35:38,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:38,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556897411] [2024-11-08 15:35:38,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:38,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:38,229 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:35:38,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:38,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556897411] [2024-11-08 15:35:38,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556897411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:38,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:38,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:35:38,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151440783] [2024-11-08 15:35:38,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:38,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:35:38,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:38,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:35:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:35:38,232 INFO L87 Difference]: Start difference. First operand 2503 states and 3474 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:38,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:38,354 INFO L93 Difference]: Finished difference Result 4225 states and 5898 transitions. [2024-11-08 15:35:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:35:38,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 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 [2024-11-08 15:35:38,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:38,364 INFO L225 Difference]: With dead ends: 4225 [2024-11-08 15:35:38,364 INFO L226 Difference]: Without dead ends: 3665 [2024-11-08 15:35:38,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:35:38,366 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 218 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:38,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 373 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2024-11-08 15:35:38,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 3063. [2024-11-08 15:35:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3063 states, 3062 states have (on average 1.3860222077073807) internal successors, (4244), 3062 states have internal predecessors, (4244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 4244 transitions. [2024-11-08 15:35:38,457 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 4244 transitions. Word has length 63 [2024-11-08 15:35:38,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:38,457 INFO L471 AbstractCegarLoop]: Abstraction has 3063 states and 4244 transitions. [2024-11-08 15:35:38,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:38,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 4244 transitions. [2024-11-08 15:35:38,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 15:35:38,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:38,459 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:35:38,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:35:38,459 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:38,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:38,459 INFO L85 PathProgramCache]: Analyzing trace with hash -296558916, now seen corresponding path program 1 times [2024-11-08 15:35:38,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:38,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384991036] [2024-11-08 15:35:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:38,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:38,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:38,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384991036] [2024-11-08 15:35:38,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384991036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:35:38,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:35:38,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:35:38,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144013873] [2024-11-08 15:35:38,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:35:38,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:35:38,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:38,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:35:38,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:35:38,525 INFO L87 Difference]: Start difference. First operand 3063 states and 4244 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2024-11-08 15:35:38,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:38,556 INFO L93 Difference]: Finished difference Result 4448 states and 6139 transitions. [2024-11-08 15:35:38,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:35:38,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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 [2024-11-08 15:35:38,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:38,560 INFO L225 Difference]: With dead ends: 4448 [2024-11-08 15:35:38,560 INFO L226 Difference]: Without dead ends: 1410 [2024-11-08 15:35:38,563 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 [2024-11-08 15:35:38,563 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 21 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:38,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 153 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:35:38,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-08 15:35:38,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1128. [2024-11-08 15:35:38,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1128 states, 1127 states have (on average 1.3744454303460514) internal successors, (1549), 1127 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1549 transitions. [2024-11-08 15:35:38,592 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 1549 transitions. Word has length 66 [2024-11-08 15:35:38,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:38,592 INFO L471 AbstractCegarLoop]: Abstraction has 1128 states and 1549 transitions. [2024-11-08 15:35:38,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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) [2024-11-08 15:35:38,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 1549 transitions. [2024-11-08 15:35:38,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 15:35:38,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:38,593 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:35:38,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:35:38,593 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:38,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:38,594 INFO L85 PathProgramCache]: Analyzing trace with hash -2010529603, now seen corresponding path program 1 times [2024-11-08 15:35:38,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:38,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529520117] [2024-11-08 15:35:38,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:38,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:39,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:39,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529520117] [2024-11-08 15:35:39,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529520117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:35:39,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220112053] [2024-11-08 15:35:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:39,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:35:39,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:35:39,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:35:39,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:35:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:39,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-08 15:35:39,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:35:42,149 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:42,149 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:35:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:43,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220112053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:35:43,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:35:43,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 18] total 39 [2024-11-08 15:35:43,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972146605] [2024-11-08 15:35:43,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:35:43,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-08 15:35:43,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:43,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-08 15:35:43,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1246, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 15:35:43,863 INFO L87 Difference]: Start difference. First operand 1128 states and 1549 transitions. Second operand has 39 states, 39 states have (on average 4.512820512820513) internal successors, (176), 39 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:52,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:35:52,597 INFO L93 Difference]: Finished difference Result 20016 states and 27502 transitions. [2024-11-08 15:35:52,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2024-11-08 15:35:52,598 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 4.512820512820513) internal successors, (176), 39 states have internal predecessors, (176), 0 states have call successors, (0), 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 [2024-11-08 15:35:52,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:35:52,647 INFO L225 Difference]: With dead ends: 20016 [2024-11-08 15:35:52,647 INFO L226 Difference]: Without dead ends: 18915 [2024-11-08 15:35:52,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9077 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=4786, Invalid=19706, Unknown=0, NotChecked=0, Total=24492 [2024-11-08 15:35:52,661 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 6371 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 2129 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6371 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 2129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 15:35:52,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6371 Valid, 2136 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 2129 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 15:35:52,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18915 states. [2024-11-08 15:35:52,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18915 to 9957. [2024-11-08 15:35:52,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9957 states, 9956 states have (on average 1.3536560867818401) internal successors, (13477), 9956 states have internal predecessors, (13477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:52,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9957 states to 9957 states and 13477 transitions. [2024-11-08 15:35:52,959 INFO L78 Accepts]: Start accepts. Automaton has 9957 states and 13477 transitions. Word has length 66 [2024-11-08 15:35:52,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:35:52,959 INFO L471 AbstractCegarLoop]: Abstraction has 9957 states and 13477 transitions. [2024-11-08 15:35:52,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 4.512820512820513) internal successors, (176), 39 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:35:52,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9957 states and 13477 transitions. [2024-11-08 15:35:52,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 15:35:52,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:35:52,960 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:35:52,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 15:35:53,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 15:35:53,162 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:35:53,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:35:53,163 INFO L85 PathProgramCache]: Analyzing trace with hash 169092347, now seen corresponding path program 1 times [2024-11-08 15:35:53,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:35:53,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426717336] [2024-11-08 15:35:53,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:53,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:35:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:53,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:35:53,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426717336] [2024-11-08 15:35:53,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426717336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:35:53,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986829965] [2024-11-08 15:35:53,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:35:53,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:35:53,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:35:53,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:35:53,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:35:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:35:53,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 15:35:53,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:35:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:54,139 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:35:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:35:54,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986829965] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:35:54,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:35:54,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-08 15:35:54,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265056783] [2024-11-08 15:35:54,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:35:54,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 15:35:54,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:35:54,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 15:35:54,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2024-11-08 15:35:54,998 INFO L87 Difference]: Start difference. First operand 9957 states and 13477 transitions. Second operand has 32 states, 32 states have (on average 5.59375) internal successors, (179), 32 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:04,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:36:04,866 INFO L93 Difference]: Finished difference Result 37922 states and 51913 transitions. [2024-11-08 15:36:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2024-11-08 15:36:04,867 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.59375) internal successors, (179), 32 states have internal predecessors, (179), 0 states have call successors, (0), 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 [2024-11-08 15:36:04,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:36:04,950 INFO L225 Difference]: With dead ends: 37922 [2024-11-08 15:36:04,953 INFO L226 Difference]: Without dead ends: 28622 [2024-11-08 15:36:04,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15621 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=6327, Invalid=32679, Unknown=0, NotChecked=0, Total=39006 [2024-11-08 15:36:04,989 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 7086 mSDsluCounter, 2246 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7086 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 2395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:36:04,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7086 Valid, 2320 Invalid, 2395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 15:36:05,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28622 states. [2024-11-08 15:36:05,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28622 to 17008. [2024-11-08 15:36:05,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17008 states, 17007 states have (on average 1.3454459928264833) internal successors, (22882), 17007 states have internal predecessors, (22882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:05,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17008 states to 17008 states and 22882 transitions. [2024-11-08 15:36:05,529 INFO L78 Accepts]: Start accepts. Automaton has 17008 states and 22882 transitions. Word has length 66 [2024-11-08 15:36:05,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:36:05,530 INFO L471 AbstractCegarLoop]: Abstraction has 17008 states and 22882 transitions. [2024-11-08 15:36:05,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.59375) internal successors, (179), 32 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 17008 states and 22882 transitions. [2024-11-08 15:36:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:36:05,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:36:05,534 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 15:36:05,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 15:36:05,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:36:05,736 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:36:05,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:36:05,736 INFO L85 PathProgramCache]: Analyzing trace with hash -367044543, now seen corresponding path program 1 times [2024-11-08 15:36:05,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:36:05,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102752924] [2024-11-08 15:36:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:05,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:36:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:05,770 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:36:05,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:36:05,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102752924] [2024-11-08 15:36:05,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102752924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:36:05,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:36:05,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:36:05,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56176162] [2024-11-08 15:36:05,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:36:05,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:36:05,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:36:05,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:36:05,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:36:05,773 INFO L87 Difference]: Start difference. First operand 17008 states and 22882 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) [2024-11-08 15:36:06,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:36:06,103 INFO L93 Difference]: Finished difference Result 31722 states and 42428 transitions. [2024-11-08 15:36:06,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:36:06,104 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 [2024-11-08 15:36:06,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:36:06,128 INFO L225 Difference]: With dead ends: 31722 [2024-11-08 15:36:06,128 INFO L226 Difference]: Without dead ends: 15721 [2024-11-08 15:36:06,140 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 [2024-11-08 15:36:06,141 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 36 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:36:06,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 213 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:36:06,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15721 states. [2024-11-08 15:36:06,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15721 to 13729. [2024-11-08 15:36:06,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13729 states, 13728 states have (on average 1.3080565268065267) internal successors, (17957), 13728 states have internal predecessors, (17957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:06,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13729 states to 13729 states and 17957 transitions. [2024-11-08 15:36:06,536 INFO L78 Accepts]: Start accepts. Automaton has 13729 states and 17957 transitions. Word has length 68 [2024-11-08 15:36:06,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:36:06,536 INFO L471 AbstractCegarLoop]: Abstraction has 13729 states and 17957 transitions. [2024-11-08 15:36:06,536 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) [2024-11-08 15:36:06,537 INFO L276 IsEmpty]: Start isEmpty. Operand 13729 states and 17957 transitions. [2024-11-08 15:36:06,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 15:36:06,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:36:06,541 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2024-11-08 15:36:06,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:36:06,542 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:36:06,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:36:06,542 INFO L85 PathProgramCache]: Analyzing trace with hash -428020768, now seen corresponding path program 1 times [2024-11-08 15:36:06,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:36:06,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923928575] [2024-11-08 15:36:06,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:06,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:36:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 15:36:06,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:36:06,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923928575] [2024-11-08 15:36:06,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923928575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:36:06,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:36:06,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:36:06,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650059031] [2024-11-08 15:36:06,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:36:06,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:36:06,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:36:06,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:36:06,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:36:06,582 INFO L87 Difference]: Start difference. First operand 13729 states and 17957 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:06,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:36:06,923 INFO L93 Difference]: Finished difference Result 29150 states and 37935 transitions. [2024-11-08 15:36:06,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:36:06,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 107 [2024-11-08 15:36:06,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:36:06,942 INFO L225 Difference]: With dead ends: 29150 [2024-11-08 15:36:06,943 INFO L226 Difference]: Without dead ends: 16104 [2024-11-08 15:36:06,953 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 [2024-11-08 15:36:06,953 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 37 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:36:06,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 173 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:36:06,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16104 states. [2024-11-08 15:36:07,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16104 to 15294. [2024-11-08 15:36:07,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15294 states, 15293 states have (on average 1.272346825344929) internal successors, (19458), 15293 states have internal predecessors, (19458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:07,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15294 states to 15294 states and 19458 transitions. [2024-11-08 15:36:07,373 INFO L78 Accepts]: Start accepts. Automaton has 15294 states and 19458 transitions. Word has length 107 [2024-11-08 15:36:07,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:36:07,373 INFO L471 AbstractCegarLoop]: Abstraction has 15294 states and 19458 transitions. [2024-11-08 15:36:07,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 15294 states and 19458 transitions. [2024-11-08 15:36:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 15:36:07,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:36:07,381 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-08 15:36:07,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:36:07,381 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:36:07,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:36:07,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1114315502, now seen corresponding path program 1 times [2024-11-08 15:36:07,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:36:07,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899349771] [2024-11-08 15:36:07,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:07,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:36:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:07,441 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:36:07,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:36:07,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899349771] [2024-11-08 15:36:07,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899349771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:36:07,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:36:07,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:36:07,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331922551] [2024-11-08 15:36:07,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:36:07,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:36:07,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:36:07,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:36:07,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:36:07,443 INFO L87 Difference]: Start difference. First operand 15294 states and 19458 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:07,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:36:07,737 INFO L93 Difference]: Finished difference Result 20712 states and 26238 transitions. [2024-11-08 15:36:07,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:36:07,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 107 [2024-11-08 15:36:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:36:07,751 INFO L225 Difference]: With dead ends: 20712 [2024-11-08 15:36:07,751 INFO L226 Difference]: Without dead ends: 11988 [2024-11-08 15:36:07,759 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 [2024-11-08 15:36:07,759 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 27 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:36:07,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 176 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:36:07,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11988 states. [2024-11-08 15:36:07,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11988 to 11116. [2024-11-08 15:36:08,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11116 states, 11115 states have (on average 1.256050382366172) internal successors, (13961), 11115 states have internal predecessors, (13961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:08,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11116 states to 11116 states and 13961 transitions. [2024-11-08 15:36:08,016 INFO L78 Accepts]: Start accepts. Automaton has 11116 states and 13961 transitions. Word has length 107 [2024-11-08 15:36:08,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:36:08,017 INFO L471 AbstractCegarLoop]: Abstraction has 11116 states and 13961 transitions. [2024-11-08 15:36:08,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:08,017 INFO L276 IsEmpty]: Start isEmpty. Operand 11116 states and 13961 transitions. [2024-11-08 15:36:08,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 15:36:08,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:36:08,022 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 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] [2024-11-08 15:36:08,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:36:08,022 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:36:08,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:36:08,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1816074562, now seen corresponding path program 1 times [2024-11-08 15:36:08,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:36:08,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516860423] [2024-11-08 15:36:08,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:08,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:36:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:08,064 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-08 15:36:08,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:36:08,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516860423] [2024-11-08 15:36:08,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516860423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:36:08,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:36:08,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:36:08,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927665808] [2024-11-08 15:36:08,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:36:08,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:36:08,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:36:08,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:36:08,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:36:08,067 INFO L87 Difference]: Start difference. First operand 11116 states and 13961 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:08,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:36:08,288 INFO L93 Difference]: Finished difference Result 16181 states and 20228 transitions. [2024-11-08 15:36:08,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:36:08,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 108 [2024-11-08 15:36:08,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:36:08,297 INFO L225 Difference]: With dead ends: 16181 [2024-11-08 15:36:08,297 INFO L226 Difference]: Without dead ends: 9878 [2024-11-08 15:36:08,304 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 [2024-11-08 15:36:08,305 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 26 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:36:08,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 211 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:36:08,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9878 states. [2024-11-08 15:36:08,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9878 to 9691. [2024-11-08 15:36:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9691 states, 9690 states have (on average 1.236016511867905) internal successors, (11977), 9690 states have internal predecessors, (11977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9691 states to 9691 states and 11977 transitions. [2024-11-08 15:36:08,526 INFO L78 Accepts]: Start accepts. Automaton has 9691 states and 11977 transitions. Word has length 108 [2024-11-08 15:36:08,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:36:08,526 INFO L471 AbstractCegarLoop]: Abstraction has 9691 states and 11977 transitions. [2024-11-08 15:36:08,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:08,526 INFO L276 IsEmpty]: Start isEmpty. Operand 9691 states and 11977 transitions. [2024-11-08 15:36:08,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 15:36:08,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:36:08,530 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 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] [2024-11-08 15:36:08,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:36:08,530 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:36:08,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:36:08,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1146161838, now seen corresponding path program 1 times [2024-11-08 15:36:08,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:36:08,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823115413] [2024-11-08 15:36:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:08,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:36:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 46 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 15:36:08,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:36:08,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823115413] [2024-11-08 15:36:08,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823115413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:36:08,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323708110] [2024-11-08 15:36:08,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:08,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:36:08,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:36:08,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:36:08,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:36:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:09,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 15:36:09,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:36:09,635 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 37 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:36:09,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:36:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 34 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:36:11,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323708110] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:36:11,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:36:11,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 12] total 26 [2024-11-08 15:36:11,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756091794] [2024-11-08 15:36:11,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:36:11,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 15:36:11,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:36:11,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 15:36:11,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2024-11-08 15:36:11,846 INFO L87 Difference]: Start difference. First operand 9691 states and 11977 transitions. Second operand has 27 states, 27 states have (on average 9.37037037037037) internal successors, (253), 26 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:13,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:36:13,599 INFO L93 Difference]: Finished difference Result 38536 states and 47398 transitions. [2024-11-08 15:36:13,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-08 15:36:13,600 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.37037037037037) internal successors, (253), 26 states have internal predecessors, (253), 0 states have call successors, (0), 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 108 [2024-11-08 15:36:13,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:36:13,627 INFO L225 Difference]: With dead ends: 38536 [2024-11-08 15:36:13,627 INFO L226 Difference]: Without dead ends: 29956 [2024-11-08 15:36:13,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=683, Invalid=2073, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 15:36:13,638 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 1121 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:36:13,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 941 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:36:13,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29956 states. [2024-11-08 15:36:14,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29956 to 20607. [2024-11-08 15:36:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20607 states, 20606 states have (on average 1.2252741919829175) internal successors, (25248), 20606 states have internal predecessors, (25248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20607 states to 20607 states and 25248 transitions. [2024-11-08 15:36:14,386 INFO L78 Accepts]: Start accepts. Automaton has 20607 states and 25248 transitions. Word has length 108 [2024-11-08 15:36:14,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:36:14,387 INFO L471 AbstractCegarLoop]: Abstraction has 20607 states and 25248 transitions. [2024-11-08 15:36:14,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.37037037037037) internal successors, (253), 26 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:14,387 INFO L276 IsEmpty]: Start isEmpty. Operand 20607 states and 25248 transitions. [2024-11-08 15:36:14,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 15:36:14,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:36:14,396 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 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] [2024-11-08 15:36:14,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:36:14,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:36:14,599 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:36:14,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:36:14,600 INFO L85 PathProgramCache]: Analyzing trace with hash -424166440, now seen corresponding path program 1 times [2024-11-08 15:36:14,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:36:14,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623332012] [2024-11-08 15:36:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:14,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:36:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:14,648 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:36:14,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:36:14,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623332012] [2024-11-08 15:36:14,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623332012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:36:14,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:36:14,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:36:14,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931846226] [2024-11-08 15:36:14,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:36:14,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:36:14,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:36:14,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:36:14,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:36:14,650 INFO L87 Difference]: Start difference. First operand 20607 states and 25248 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:15,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:36:15,516 INFO L93 Difference]: Finished difference Result 47276 states and 57406 transitions. [2024-11-08 15:36:15,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:36:15,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 108 [2024-11-08 15:36:15,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:36:15,552 INFO L225 Difference]: With dead ends: 47276 [2024-11-08 15:36:15,552 INFO L226 Difference]: Without dead ends: 27655 [2024-11-08 15:36:15,569 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 [2024-11-08 15:36:15,570 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 39 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:36:15,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 188 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:36:15,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27655 states. [2024-11-08 15:36:16,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27655 to 27380. [2024-11-08 15:36:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27380 states, 27379 states have (on average 1.178275320501114) internal successors, (32260), 27379 states have internal predecessors, (32260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:16,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27380 states to 27380 states and 32260 transitions. [2024-11-08 15:36:16,730 INFO L78 Accepts]: Start accepts. Automaton has 27380 states and 32260 transitions. Word has length 108 [2024-11-08 15:36:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:36:16,730 INFO L471 AbstractCegarLoop]: Abstraction has 27380 states and 32260 transitions. [2024-11-08 15:36:16,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:16,730 INFO L276 IsEmpty]: Start isEmpty. Operand 27380 states and 32260 transitions. [2024-11-08 15:36:16,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 15:36:16,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:36:16,743 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 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] [2024-11-08 15:36:16,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 15:36:16,744 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:36:16,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:36:16,744 INFO L85 PathProgramCache]: Analyzing trace with hash 325031386, now seen corresponding path program 1 times [2024-11-08 15:36:16,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:36:16,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436462046] [2024-11-08 15:36:16,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:16,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:36:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:18,356 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 24 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:36:18,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:36:18,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436462046] [2024-11-08 15:36:18,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436462046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:36:18,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937189766] [2024-11-08 15:36:18,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:18,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:36:18,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:36:18,360 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:36:18,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:36:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:18,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 15:36:18,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:36:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 48 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:36:19,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:36:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 21 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:36:21,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937189766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:36:21,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:36:21,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 15] total 44 [2024-11-08 15:36:21,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54102127] [2024-11-08 15:36:21,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:36:21,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-08 15:36:21,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:36:21,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-08 15:36:21,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1729, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 15:36:21,301 INFO L87 Difference]: Start difference. First operand 27380 states and 32260 transitions. Second operand has 44 states, 44 states have (on average 6.931818181818182) internal successors, (305), 44 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:40,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:36:40,130 INFO L93 Difference]: Finished difference Result 89787 states and 105830 transitions. [2024-11-08 15:36:40,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2024-11-08 15:36:40,131 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 6.931818181818182) internal successors, (305), 44 states have internal predecessors, (305), 0 states have call successors, (0), 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 109 [2024-11-08 15:36:40,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:36:40,192 INFO L225 Difference]: With dead ends: 89787 [2024-11-08 15:36:40,192 INFO L226 Difference]: Without dead ends: 66428 [2024-11-08 15:36:40,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11782 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=5386, Invalid=29396, Unknown=0, NotChecked=0, Total=34782 [2024-11-08 15:36:40,210 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 4252 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4252 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:36:40,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4252 Valid, 2067 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 15:36:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66428 states. [2024-11-08 15:36:41,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66428 to 46847. [2024-11-08 15:36:41,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46847 states, 46846 states have (on average 1.1803355676044913) internal successors, (55294), 46846 states have internal predecessors, (55294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:41,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46847 states to 46847 states and 55294 transitions. [2024-11-08 15:36:41,964 INFO L78 Accepts]: Start accepts. Automaton has 46847 states and 55294 transitions. Word has length 109 [2024-11-08 15:36:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:36:41,964 INFO L471 AbstractCegarLoop]: Abstraction has 46847 states and 55294 transitions. [2024-11-08 15:36:41,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 6.931818181818182) internal successors, (305), 44 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 46847 states and 55294 transitions. [2024-11-08 15:36:41,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 15:36:41,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:36:41,980 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 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] [2024-11-08 15:36:42,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 15:36:42,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-08 15:36:42,181 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:36:42,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:36:42,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1495967852, now seen corresponding path program 1 times [2024-11-08 15:36:42,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:36:42,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132705583] [2024-11-08 15:36:42,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:42,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:36:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:42,275 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 15:36:42,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:36:42,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132705583] [2024-11-08 15:36:42,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132705583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:36:42,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:36:42,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:36:42,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015099488] [2024-11-08 15:36:42,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:36:42,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:36:42,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:36:42,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:36:42,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:36:42,277 INFO L87 Difference]: Start difference. First operand 46847 states and 55294 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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) [2024-11-08 15:36:43,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:36:43,578 INFO L93 Difference]: Finished difference Result 69248 states and 81548 transitions. [2024-11-08 15:36:43,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:36:43,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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 109 [2024-11-08 15:36:43,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:36:43,619 INFO L225 Difference]: With dead ends: 69248 [2024-11-08 15:36:43,619 INFO L226 Difference]: Without dead ends: 40384 [2024-11-08 15:36:43,638 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 [2024-11-08 15:36:43,639 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 27 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:36:43,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 206 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:36:43,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40384 states. [2024-11-08 15:36:45,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40384 to 33745. [2024-11-08 15:36:45,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33745 states, 33744 states have (on average 1.1674371740161213) internal successors, (39394), 33744 states have internal predecessors, (39394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:36:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33745 states to 33745 states and 39394 transitions. [2024-11-08 15:36:45,248 INFO L78 Accepts]: Start accepts. Automaton has 33745 states and 39394 transitions. Word has length 109 [2024-11-08 15:36:45,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:36:45,248 INFO L471 AbstractCegarLoop]: Abstraction has 33745 states and 39394 transitions. [2024-11-08 15:36:45,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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) [2024-11-08 15:36:45,248 INFO L276 IsEmpty]: Start isEmpty. Operand 33745 states and 39394 transitions. [2024-11-08 15:36:45,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 15:36:45,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:36:45,258 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 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] [2024-11-08 15:36:45,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 15:36:45,258 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:36:45,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:36:45,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1463366074, now seen corresponding path program 1 times [2024-11-08 15:36:45,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:36:45,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262947825] [2024-11-08 15:36:45,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:45,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:36:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 16 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:36:46,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:36:46,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262947825] [2024-11-08 15:36:46,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262947825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:36:46,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884509960] [2024-11-08 15:36:46,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:36:46,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:36:46,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:36:46,564 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:36:46,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 15:36:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:36:46,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 15:36:46,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:36:47,457 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 24 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:36:47,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:36:48,519 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 17 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:36:48,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884509960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:36:48,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:36:48,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 12] total 39 [2024-11-08 15:36:48,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969594693] [2024-11-08 15:36:48,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:36:48,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-08 15:36:48,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:36:48,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-08 15:36:48,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1354, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 15:36:48,522 INFO L87 Difference]: Start difference. First operand 33745 states and 39394 transitions. Second operand has 39 states, 39 states have (on average 7.6923076923076925) internal successors, (300), 39 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:37:01,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:37:01,147 INFO L93 Difference]: Finished difference Result 103892 states and 121158 transitions. [2024-11-08 15:37:01,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-11-08 15:37:01,148 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 7.6923076923076925) internal successors, (300), 39 states have internal predecessors, (300), 0 states have call successors, (0), 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 109 [2024-11-08 15:37:01,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:37:01,232 INFO L225 Difference]: With dead ends: 103892 [2024-11-08 15:37:01,233 INFO L226 Difference]: Without dead ends: 88543 [2024-11-08 15:37:01,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6042 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=4384, Invalid=16496, Unknown=0, NotChecked=0, Total=20880 [2024-11-08 15:37:01,253 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 3933 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3933 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:37:01,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3933 Valid, 2135 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:37:01,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88543 states.