./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem19_label59.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem19_label59.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 fe2b0deb169362c7d64c9df76766c9af54619e5f9a01cab4bf1bef7672f8f279 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:05:45,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:05:45,374 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:05:45,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:05:45,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:05:45,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:05:45,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:05:45,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:05:45,405 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:05:45,406 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:05:45,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:05:45,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:05:45,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:05:45,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:05:45,408 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:05:45,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:05:45,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:05:45,410 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:05:45,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:05:45,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:05:45,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:05:45,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:05:45,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:05:45,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:05:45,414 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:05:45,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:05:45,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:05:45,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:05:45,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:05:45,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:05:45,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:05:45,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:05:45,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:05:45,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:05:45,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:05:45,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:05:45,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:05:45,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:05:45,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:05:45,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:05:45,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:05:45,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:05:45,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe2b0deb169362c7d64c9df76766c9af54619e5f9a01cab4bf1bef7672f8f279 [2024-11-18 11:05:45,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:05:45,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:05:45,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:05:45,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:05:45,644 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:05:45,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem19_label59.c [2024-11-18 11:05:46,869 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:05:47,296 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:05:47,297 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label59.c [2024-11-18 11:05:47,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585340da9/d3f667d66a52447a9bae6822ea0228a7/FLAG50a35b461 [2024-11-18 11:05:47,347 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/585340da9/d3f667d66a52447a9bae6822ea0228a7 [2024-11-18 11:05:47,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:05:47,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:05:47,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:05:47,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:05:47,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:05:47,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:05:47" (1/1) ... [2024-11-18 11:05:47,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318f9b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:47, skipping insertion in model container [2024-11-18 11:05:47,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:05:47" (1/1) ... [2024-11-18 11:05:47,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:05:47,766 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/eca-rers2012/Problem19_label59.c[3603,3616] [2024-11-18 11:05:48,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:05:48,623 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:05:48,642 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/eca-rers2012/Problem19_label59.c[3603,3616] [2024-11-18 11:05:49,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:05:49,169 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:05:49,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49 WrapperNode [2024-11-18 11:05:49,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:05:49,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:05:49,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:05:49,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:05:49,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:49,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:49,990 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9431 [2024-11-18 11:05:49,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:05:49,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:05:49,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:05:49,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:05:50,008 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,435 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 11:05:50,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:05:50,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:05:50,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:05:50,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:05:50,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (1/1) ... [2024-11-18 11:05:50,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:05:50,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:05:50,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:05:50,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:05:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:05:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:05:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:05:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:05:50,983 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:05:50,985 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:05:56,622 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-11-18 11:05:56,623 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:05:56,675 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:05:56,675 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 11:05:56,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:05:56 BoogieIcfgContainer [2024-11-18 11:05:56,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:05:56,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:05:56,677 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:05:56,680 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:05:56,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:05:47" (1/3) ... [2024-11-18 11:05:56,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d2b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:05:56, skipping insertion in model container [2024-11-18 11:05:56,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:05:49" (2/3) ... [2024-11-18 11:05:56,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d2b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:05:56, skipping insertion in model container [2024-11-18 11:05:56,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:05:56" (3/3) ... [2024-11-18 11:05:56,684 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label59.c [2024-11-18 11:05:56,697 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:05:56,697 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:05:56,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:05:56,773 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;@55621a8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:05:56,774 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:05:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:05:56,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-18 11:05:56,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:05:56,787 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] [2024-11-18 11:05:56,787 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:05:56,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:05:56,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1225036359, now seen corresponding path program 1 times [2024-11-18 11:05:56,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:05:56,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378331755] [2024-11-18 11:05:56,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:05:56,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:05:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:05:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:05:57,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:05:57,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378331755] [2024-11-18 11:05:57,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378331755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:05:57,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:05:57,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:05:57,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346875919] [2024-11-18 11:05:57,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:05:57,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:05:57,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:05:57,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:05:57,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:05:57,073 INFO L87 Difference]: Start difference. First operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 0 states have call successors, (0), 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 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 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) [2024-11-18 11:06:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:02,268 INFO L93 Difference]: Finished difference Result 4975 states and 9416 transitions. [2024-11-18 11:06:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:06:02,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 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 [2024-11-18 11:06:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:02,300 INFO L225 Difference]: With dead ends: 4975 [2024-11-18 11:06:02,301 INFO L226 Difference]: Without dead ends: 3163 [2024-11-18 11:06:02,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:02,310 INFO L432 NwaCegarLoop]: 1353 mSDtfsCounter, 1521 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4670 mSolverCounterSat, 1123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 5793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1123 IncrementalHoareTripleChecker+Valid, 4670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:02,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1524 Invalid, 5793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1123 Valid, 4670 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-18 11:06:02,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2024-11-18 11:06:02,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3123. [2024-11-18 11:06:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3123 states, 3122 states have (on average 1.6268417680973735) internal successors, (5079), 3122 states have internal predecessors, (5079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 5079 transitions. [2024-11-18 11:06:02,417 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 5079 transitions. Word has length 25 [2024-11-18 11:06:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:02,418 INFO L471 AbstractCegarLoop]: Abstraction has 3123 states and 5079 transitions. [2024-11-18 11:06:02,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 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) [2024-11-18 11:06:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 5079 transitions. [2024-11-18 11:06:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 11:06:02,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:02,422 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:02,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:06:02,423 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:02,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:02,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1658791217, now seen corresponding path program 1 times [2024-11-18 11:06:02,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:02,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901056396] [2024-11-18 11:06:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:02,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:06:02,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:02,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901056396] [2024-11-18 11:06:02,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901056396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:02,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:06:02,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:06:02,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489521713] [2024-11-18 11:06:02,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:02,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:06:02,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:02,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:06:02,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:02,572 INFO L87 Difference]: Start difference. First operand 3123 states and 5079 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:07,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:07,677 INFO L93 Difference]: Finished difference Result 9055 states and 14814 transitions. [2024-11-18 11:06:07,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:06:07,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-18 11:06:07,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:07,694 INFO L225 Difference]: With dead ends: 9055 [2024-11-18 11:06:07,695 INFO L226 Difference]: Without dead ends: 5934 [2024-11-18 11:06:07,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:07,700 INFO L432 NwaCegarLoop]: 1324 mSDtfsCounter, 1536 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 4266 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 5738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1472 IncrementalHoareTripleChecker+Valid, 4266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:07,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 1543 Invalid, 5738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 4266 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-18 11:06:07,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5934 states. [2024-11-18 11:06:07,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5934 to 5910. [2024-11-18 11:06:07,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5909 states have (on average 1.4235911321712642) internal successors, (8412), 5909 states have internal predecessors, (8412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:07,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 8412 transitions. [2024-11-18 11:06:07,795 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 8412 transitions. Word has length 96 [2024-11-18 11:06:07,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:07,795 INFO L471 AbstractCegarLoop]: Abstraction has 5910 states and 8412 transitions. [2024-11-18 11:06:07,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:07,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 8412 transitions. [2024-11-18 11:06:07,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 11:06:07,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:07,798 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:07,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 11:06:07,799 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:07,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:07,799 INFO L85 PathProgramCache]: Analyzing trace with hash -698240399, now seen corresponding path program 1 times [2024-11-18 11:06:07,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:07,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936382538] [2024-11-18 11:06:07,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:07,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:06:08,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:08,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936382538] [2024-11-18 11:06:08,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936382538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:08,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:06:08,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:06:08,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809325757] [2024-11-18 11:06:08,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:08,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 11:06:08,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:08,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 11:06:08,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 11:06:08,077 INFO L87 Difference]: Start difference. First operand 5910 states and 8412 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:14,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:14,550 INFO L93 Difference]: Finished difference Result 18680 states and 26154 transitions. [2024-11-18 11:06:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 11:06:14,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 [2024-11-18 11:06:14,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:14,584 INFO L225 Difference]: With dead ends: 18680 [2024-11-18 11:06:14,584 INFO L226 Difference]: Without dead ends: 12772 [2024-11-18 11:06:14,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 11:06:14,598 INFO L432 NwaCegarLoop]: 1007 mSDtfsCounter, 4367 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 7341 mSolverCounterSat, 2200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4367 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 9541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2200 IncrementalHoareTripleChecker+Valid, 7341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:14,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4367 Valid, 1281 Invalid, 9541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2200 Valid, 7341 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-18 11:06:14,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12772 states. [2024-11-18 11:06:14,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12772 to 12761. [2024-11-18 11:06:14,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12761 states, 12760 states have (on average 1.3468652037617554) internal successors, (17186), 12760 states have internal predecessors, (17186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12761 states to 12761 states and 17186 transitions. [2024-11-18 11:06:14,948 INFO L78 Accepts]: Start accepts. Automaton has 12761 states and 17186 transitions. Word has length 108 [2024-11-18 11:06:14,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:14,948 INFO L471 AbstractCegarLoop]: Abstraction has 12761 states and 17186 transitions. [2024-11-18 11:06:14,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:14,949 INFO L276 IsEmpty]: Start isEmpty. Operand 12761 states and 17186 transitions. [2024-11-18 11:06:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-18 11:06:14,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:14,951 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:14,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 11:06:14,951 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:14,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:14,952 INFO L85 PathProgramCache]: Analyzing trace with hash -519306661, now seen corresponding path program 1 times [2024-11-18 11:06:14,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:14,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956078848] [2024-11-18 11:06:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:14,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:06:15,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:15,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956078848] [2024-11-18 11:06:15,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956078848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:15,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:06:15,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:06:15,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978690874] [2024-11-18 11:06:15,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:15,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:06:15,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:15,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:06:15,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:15,202 INFO L87 Difference]: Start difference. First operand 12761 states and 17186 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:19,168 INFO L93 Difference]: Finished difference Result 29634 states and 40392 transitions. [2024-11-18 11:06:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:06:19,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 232 [2024-11-18 11:06:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:19,213 INFO L225 Difference]: With dead ends: 29634 [2024-11-18 11:06:19,214 INFO L226 Difference]: Without dead ends: 18241 [2024-11-18 11:06:19,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:19,227 INFO L432 NwaCegarLoop]: 3079 mSDtfsCounter, 1466 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 3739 mSolverCounterSat, 1676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 5415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1676 IncrementalHoareTripleChecker+Valid, 3739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:19,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 3270 Invalid, 5415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1676 Valid, 3739 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-18 11:06:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18241 states. [2024-11-18 11:06:19,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18241 to 18237. [2024-11-18 11:06:19,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18237 states, 18236 states have (on average 1.2679315639394604) internal successors, (23122), 18236 states have internal predecessors, (23122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:19,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18237 states to 18237 states and 23122 transitions. [2024-11-18 11:06:19,576 INFO L78 Accepts]: Start accepts. Automaton has 18237 states and 23122 transitions. Word has length 232 [2024-11-18 11:06:19,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:19,578 INFO L471 AbstractCegarLoop]: Abstraction has 18237 states and 23122 transitions. [2024-11-18 11:06:19,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 18237 states and 23122 transitions. [2024-11-18 11:06:19,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-18 11:06:19,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:19,583 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:19,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 11:06:19,583 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:19,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:19,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1757817294, now seen corresponding path program 1 times [2024-11-18 11:06:19,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:19,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251987146] [2024-11-18 11:06:19,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:19,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:20,402 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-18 11:06:20,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:20,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251987146] [2024-11-18 11:06:20,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251987146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:20,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:06:20,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:06:20,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605001683] [2024-11-18 11:06:20,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:20,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 11:06:20,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:20,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 11:06:20,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 11:06:20,406 INFO L87 Difference]: Start difference. First operand 18237 states and 23122 transitions. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:27,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:27,103 INFO L93 Difference]: Finished difference Result 44706 states and 55895 transitions. [2024-11-18 11:06:27,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 11:06:27,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 354 [2024-11-18 11:06:27,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:27,145 INFO L225 Difference]: With dead ends: 44706 [2024-11-18 11:06:27,145 INFO L226 Difference]: Without dead ends: 27836 [2024-11-18 11:06:27,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 11:06:27,164 INFO L432 NwaCegarLoop]: 1742 mSDtfsCounter, 3756 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 9336 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3756 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 9761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 9336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:27,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3756 Valid, 2094 Invalid, 9761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 9336 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-18 11:06:27,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27836 states. [2024-11-18 11:06:27,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27836 to 27813. [2024-11-18 11:06:27,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27813 states, 27812 states have (on average 1.201891269955415) internal successors, (33427), 27812 states have internal predecessors, (33427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:27,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27813 states to 27813 states and 33427 transitions. [2024-11-18 11:06:27,532 INFO L78 Accepts]: Start accepts. Automaton has 27813 states and 33427 transitions. Word has length 354 [2024-11-18 11:06:27,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:27,534 INFO L471 AbstractCegarLoop]: Abstraction has 27813 states and 33427 transitions. [2024-11-18 11:06:27,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:27,534 INFO L276 IsEmpty]: Start isEmpty. Operand 27813 states and 33427 transitions. [2024-11-18 11:06:27,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-18 11:06:27,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:27,539 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:27,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 11:06:27,539 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:27,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:27,540 INFO L85 PathProgramCache]: Analyzing trace with hash -278228072, now seen corresponding path program 1 times [2024-11-18 11:06:27,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:27,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220879904] [2024-11-18 11:06:27,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:27,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:28,040 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:06:28,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:28,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220879904] [2024-11-18 11:06:28,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220879904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:28,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:06:28,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:06:28,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371045112] [2024-11-18 11:06:28,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:28,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 11:06:28,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:28,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 11:06:28,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 11:06:28,043 INFO L87 Difference]: Start difference. First operand 27813 states and 33427 transitions. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:32,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:32,846 INFO L93 Difference]: Finished difference Result 52925 states and 64135 transitions. [2024-11-18 11:06:32,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 11:06:32,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 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 382 [2024-11-18 11:06:32,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:32,886 INFO L225 Difference]: With dead ends: 52925 [2024-11-18 11:06:32,886 INFO L226 Difference]: Without dead ends: 27813 [2024-11-18 11:06:32,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 11:06:32,911 INFO L432 NwaCegarLoop]: 1769 mSDtfsCounter, 1138 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 7313 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 7321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 7313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:32,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 2111 Invalid, 7321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 7313 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-18 11:06:32,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27813 states. [2024-11-18 11:06:33,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27813 to 27813. [2024-11-18 11:06:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27813 states, 27812 states have (on average 1.2014238458219473) internal successors, (33414), 27812 states have internal predecessors, (33414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:33,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27813 states to 27813 states and 33414 transitions. [2024-11-18 11:06:33,311 INFO L78 Accepts]: Start accepts. Automaton has 27813 states and 33414 transitions. Word has length 382 [2024-11-18 11:06:33,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:33,312 INFO L471 AbstractCegarLoop]: Abstraction has 27813 states and 33414 transitions. [2024-11-18 11:06:33,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:33,312 INFO L276 IsEmpty]: Start isEmpty. Operand 27813 states and 33414 transitions. [2024-11-18 11:06:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2024-11-18 11:06:33,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:33,324 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:33,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 11:06:33,325 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:33,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:33,325 INFO L85 PathProgramCache]: Analyzing trace with hash 325902696, now seen corresponding path program 1 times [2024-11-18 11:06:33,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:33,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553531732] [2024-11-18 11:06:33,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:33,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:06:33,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:33,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553531732] [2024-11-18 11:06:33,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553531732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:33,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:06:33,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:06:33,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266260610] [2024-11-18 11:06:33,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:33,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:06:33,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:33,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:06:33,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:33,668 INFO L87 Difference]: Start difference. First operand 27813 states and 33414 transitions. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:38,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:38,258 INFO L93 Difference]: Finished difference Result 61182 states and 76059 transitions. [2024-11-18 11:06:38,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:06:38,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 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 512 [2024-11-18 11:06:38,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:38,301 INFO L225 Difference]: With dead ends: 61182 [2024-11-18 11:06:38,302 INFO L226 Difference]: Without dead ends: 36101 [2024-11-18 11:06:38,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:38,322 INFO L432 NwaCegarLoop]: 1925 mSDtfsCounter, 1695 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5049 mSolverCounterSat, 954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 6003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 954 IncrementalHoareTripleChecker+Valid, 5049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:38,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 2074 Invalid, 6003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [954 Valid, 5049 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-18 11:06:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36101 states. [2024-11-18 11:06:38,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36101 to 36082. [2024-11-18 11:06:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36082 states, 36081 states have (on average 1.2354424766497603) internal successors, (44576), 36081 states have internal predecessors, (44576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36082 states to 36082 states and 44576 transitions. [2024-11-18 11:06:38,795 INFO L78 Accepts]: Start accepts. Automaton has 36082 states and 44576 transitions. Word has length 512 [2024-11-18 11:06:38,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:38,795 INFO L471 AbstractCegarLoop]: Abstraction has 36082 states and 44576 transitions. [2024-11-18 11:06:38,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:38,796 INFO L276 IsEmpty]: Start isEmpty. Operand 36082 states and 44576 transitions. [2024-11-18 11:06:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 591 [2024-11-18 11:06:38,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:38,803 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:38,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 11:06:38,804 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:38,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:38,804 INFO L85 PathProgramCache]: Analyzing trace with hash 942540356, now seen corresponding path program 1 times [2024-11-18 11:06:38,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:38,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210601107] [2024-11-18 11:06:38,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:38,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:39,107 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-18 11:06:39,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:39,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210601107] [2024-11-18 11:06:39,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210601107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:39,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:06:39,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:06:39,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307639811] [2024-11-18 11:06:39,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:39,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:06:39,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:39,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:06:39,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:39,110 INFO L87 Difference]: Start difference. First operand 36082 states and 44576 transitions. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 2 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:43,315 INFO L93 Difference]: Finished difference Result 77634 states and 97709 transitions. [2024-11-18 11:06:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:06:43,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 2 states have internal predecessors, (514), 0 states have call successors, (0), 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 590 [2024-11-18 11:06:43,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:43,370 INFO L225 Difference]: With dead ends: 77634 [2024-11-18 11:06:43,370 INFO L226 Difference]: Without dead ends: 44284 [2024-11-18 11:06:43,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:43,398 INFO L432 NwaCegarLoop]: 745 mSDtfsCounter, 1380 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 2094 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 6020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2094 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:43,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 795 Invalid, 6020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2094 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-18 11:06:43,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44284 states. [2024-11-18 11:06:43,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44284 to 44272. [2024-11-18 11:06:43,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44272 states, 44271 states have (on average 1.2296988999570826) internal successors, (54440), 44271 states have internal predecessors, (54440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44272 states to 44272 states and 54440 transitions. [2024-11-18 11:06:43,859 INFO L78 Accepts]: Start accepts. Automaton has 44272 states and 54440 transitions. Word has length 590 [2024-11-18 11:06:43,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:43,860 INFO L471 AbstractCegarLoop]: Abstraction has 44272 states and 54440 transitions. [2024-11-18 11:06:43,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 2 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:43,860 INFO L276 IsEmpty]: Start isEmpty. Operand 44272 states and 54440 transitions. [2024-11-18 11:06:43,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-18 11:06:43,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:43,864 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:43,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 11:06:43,865 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:43,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:43,865 INFO L85 PathProgramCache]: Analyzing trace with hash 192399333, now seen corresponding path program 1 times [2024-11-18 11:06:43,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:43,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16173896] [2024-11-18 11:06:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:43,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-18 11:06:44,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:44,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16173896] [2024-11-18 11:06:44,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16173896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:44,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:06:44,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:06:44,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349418751] [2024-11-18 11:06:44,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:44,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:06:44,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:44,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:06:44,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:44,205 INFO L87 Difference]: Start difference. First operand 44272 states and 54440 transitions. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 2 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:49,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:49,320 INFO L93 Difference]: Finished difference Result 127006 states and 157393 transitions. [2024-11-18 11:06:49,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:06:49,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 2 states have internal predecessors, (516), 0 states have call successors, (0), 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 631 [2024-11-18 11:06:49,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:49,408 INFO L225 Difference]: With dead ends: 127006 [2024-11-18 11:06:49,408 INFO L226 Difference]: Without dead ends: 85466 [2024-11-18 11:06:49,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:49,422 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 2109 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 5107 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 5541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:49,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 974 Invalid, 5541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5107 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-18 11:06:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85466 states. [2024-11-18 11:06:49,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85466 to 85462. [2024-11-18 11:06:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85462 states, 85461 states have (on average 1.2110904389136565) internal successors, (103501), 85461 states have internal predecessors, (103501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:50,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85462 states to 85462 states and 103501 transitions. [2024-11-18 11:06:50,083 INFO L78 Accepts]: Start accepts. Automaton has 85462 states and 103501 transitions. Word has length 631 [2024-11-18 11:06:50,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:50,083 INFO L471 AbstractCegarLoop]: Abstraction has 85462 states and 103501 transitions. [2024-11-18 11:06:50,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 2 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:50,083 INFO L276 IsEmpty]: Start isEmpty. Operand 85462 states and 103501 transitions. [2024-11-18 11:06:50,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2024-11-18 11:06:50,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:50,087 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:50,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 11:06:50,087 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:50,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:50,088 INFO L85 PathProgramCache]: Analyzing trace with hash 207909631, now seen corresponding path program 1 times [2024-11-18 11:06:50,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:50,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546790196] [2024-11-18 11:06:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:50,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:51,383 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 45 proven. 40 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-18 11:06:51,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:51,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546790196] [2024-11-18 11:06:51,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546790196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:06:51,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237918257] [2024-11-18 11:06:51,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:51,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:06:51,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:06:51,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:06:51,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 11:06:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:51,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 11:06:51,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:06:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:06:51,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:06:51,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237918257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:51,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 11:06:51,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-18 11:06:51,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740253241] [2024-11-18 11:06:51,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:51,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:06:51,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:06:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 11:06:51,821 INFO L87 Difference]: Start difference. First operand 85462 states and 103501 transitions. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:56,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:06:56,911 INFO L93 Difference]: Finished difference Result 233691 states and 286262 transitions. [2024-11-18 11:06:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:06:56,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 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 634 [2024-11-18 11:06:56,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:06:57,084 INFO L225 Difference]: With dead ends: 233691 [2024-11-18 11:06:57,084 INFO L226 Difference]: Without dead ends: 148229 [2024-11-18 11:06:57,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 11:06:57,147 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 1526 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 3901 mSolverCounterSat, 1728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 5629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1728 IncrementalHoareTripleChecker+Valid, 3901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-18 11:06:57,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1688 Invalid, 5629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1728 Valid, 3901 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-18 11:06:57,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148229 states. [2024-11-18 11:06:58,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148229 to 140035. [2024-11-18 11:06:58,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140035 states, 140034 states have (on average 1.1517702843595128) internal successors, (161287), 140034 states have internal predecessors, (161287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140035 states to 140035 states and 161287 transitions. [2024-11-18 11:06:58,935 INFO L78 Accepts]: Start accepts. Automaton has 140035 states and 161287 transitions. Word has length 634 [2024-11-18 11:06:58,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:06:58,936 INFO L471 AbstractCegarLoop]: Abstraction has 140035 states and 161287 transitions. [2024-11-18 11:06:58,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:06:58,936 INFO L276 IsEmpty]: Start isEmpty. Operand 140035 states and 161287 transitions. [2024-11-18 11:06:58,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-18 11:06:58,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:06:58,943 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:06:58,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 11:06:59,144 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 [2024-11-18 11:06:59,145 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:06:59,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:06:59,145 INFO L85 PathProgramCache]: Analyzing trace with hash 2001287119, now seen corresponding path program 1 times [2024-11-18 11:06:59,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:06:59,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055346989] [2024-11-18 11:06:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:06:59,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:06:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:06:59,629 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-18 11:06:59,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:06:59,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055346989] [2024-11-18 11:06:59,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055346989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:06:59,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:06:59,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:06:59,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731960252] [2024-11-18 11:06:59,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:06:59,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:06:59,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:06:59,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:06:59,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:06:59,631 INFO L87 Difference]: Start difference. First operand 140035 states and 161287 transitions. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:07:04,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:07:04,274 INFO L93 Difference]: Finished difference Result 277350 states and 319859 transitions. [2024-11-18 11:07:04,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:07:04,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 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 724 [2024-11-18 11:07:04,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:07:04,433 INFO L225 Difference]: With dead ends: 277350 [2024-11-18 11:07:04,433 INFO L226 Difference]: Without dead ends: 140047 [2024-11-18 11:07:04,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:07:04,476 INFO L432 NwaCegarLoop]: 2856 mSDtfsCounter, 1421 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4413 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 3041 SdHoareTripleChecker+Invalid, 5298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 4413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-18 11:07:04,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 3041 Invalid, 5298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 4413 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-18 11:07:04,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140047 states. [2024-11-18 11:07:05,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140047 to 140033. [2024-11-18 11:07:05,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140033 states, 140032 states have (on average 1.1178801988117002) internal successors, (156539), 140032 states have internal predecessors, (156539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:07:06,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140033 states to 140033 states and 156539 transitions. [2024-11-18 11:07:06,291 INFO L78 Accepts]: Start accepts. Automaton has 140033 states and 156539 transitions. Word has length 724 [2024-11-18 11:07:06,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:07:06,291 INFO L471 AbstractCegarLoop]: Abstraction has 140033 states and 156539 transitions. [2024-11-18 11:07:06,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 11:07:06,291 INFO L276 IsEmpty]: Start isEmpty. Operand 140033 states and 156539 transitions. [2024-11-18 11:07:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2024-11-18 11:07:06,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:07:06,295 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:07:06,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 11:07:06,295 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:07:06,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:07:06,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1259584170, now seen corresponding path program 1 times [2024-11-18 11:07:06,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:07:06,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510776239] [2024-11-18 11:07:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:07:06,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:07:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:07:07,983 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 45 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:07:07,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:07:07,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510776239] [2024-11-18 11:07:07,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510776239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:07:07,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898205694] [2024-11-18 11:07:07,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:07:07,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:07:07,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:07:07,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:07:07,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 11:07:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:07:08,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 11:07:08,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:07:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-18 11:07:08,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:07:08,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898205694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:07:08,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 11:07:08,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-18 11:07:08,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761546772] [2024-11-18 11:07:08,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:07:08,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:07:08,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:07:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:07:08,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 11:07:08,231 INFO L87 Difference]: Start difference. First operand 140033 states and 156539 transitions. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)