./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-85.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-85.i -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 d5ed89ea29299420fd60462f8e2db8b26e06e69feba35ce63f47be6d1e493230 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:08:14,444 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:08:14,502 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 11:08:14,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:08:14,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:08:14,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:08:14,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:08:14,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:08:14,523 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:08:14,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:08:14,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:08:14,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:08:14,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:08:14,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:08:14,525 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:08:14,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:08:14,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:08:14,526 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:08:14,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 11:08:14,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:08:14,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:08:14,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:08:14,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:08:14,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:08:14,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:08:14,533 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:08:14,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:08:14,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:08:14,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:08:14,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:08:14,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:08:14,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:08:14,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:08:14,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:08:14,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:08:14,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:08:14,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 11:08:14,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 11:08:14,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:08:14,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:08:14,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:08:14,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:08:14,538 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5ed89ea29299420fd60462f8e2db8b26e06e69feba35ce63f47be6d1e493230 [2024-10-14 11:08:14,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:08:14,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:08:14,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:08:14,779 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:08:14,780 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:08:14,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-85.i [2024-10-14 11:08:16,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:08:16,242 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:08:16,242 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-85.i [2024-10-14 11:08:16,248 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/742b3b173/0893125421354ca299f550b0dde45893/FLAG9cf31f262 [2024-10-14 11:08:16,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/742b3b173/0893125421354ca299f550b0dde45893 [2024-10-14 11:08:16,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:08:16,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:08:16,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:08:16,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:08:16,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:08:16,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:16,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7277ba22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16, skipping insertion in model container [2024-10-14 11:08:16,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:16,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:08:16,830 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-85.i[916,929] [2024-10-14 11:08:16,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:08:16,895 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:08:16,905 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-85.i[916,929] [2024-10-14 11:08:16,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:08:16,941 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:08:16,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16 WrapperNode [2024-10-14 11:08:16,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:08:16,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:08:16,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:08:16,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:08:16,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:16,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,005 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-10-14 11:08:17,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:08:17,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:08:17,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:08:17,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:08:17,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,033 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 11:08:17,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:08:17,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:08:17,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:08:17,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:08:17,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (1/1) ... [2024-10-14 11:08:17,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:08:17,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:08:17,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 11:08:17,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 11:08:17,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:08:17,144 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:08:17,144 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:08:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 11:08:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:08:17,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:08:17,210 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:08:17,212 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:08:17,432 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-14 11:08:17,432 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:08:17,465 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:08:17,466 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:08:17,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:17 BoogieIcfgContainer [2024-10-14 11:08:17,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:08:17,473 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:08:17,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:08:17,476 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:08:17,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:08:16" (1/3) ... [2024-10-14 11:08:17,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7484fafb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:17, skipping insertion in model container [2024-10-14 11:08:17,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:16" (2/3) ... [2024-10-14 11:08:17,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7484fafb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:17, skipping insertion in model container [2024-10-14 11:08:17,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:17" (3/3) ... [2024-10-14 11:08:17,480 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-85.i [2024-10-14 11:08:17,494 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:08:17,494 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:08:17,550 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:08:17,556 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;@609cc706, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:08:17,556 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:08:17,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 11:08:17,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 11:08:17,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:17,570 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:17,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:17,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:17,574 INFO L85 PathProgramCache]: Analyzing trace with hash -682589884, now seen corresponding path program 1 times [2024-10-14 11:08:17,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:17,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773894585] [2024-10-14 11:08:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:17,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:08:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:08:17,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:17,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773894585] [2024-10-14 11:08:17,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773894585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:17,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:17,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:08:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544530113] [2024-10-14 11:08:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:17,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:08:17,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:17,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:08:17,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:08:17,990 INFO L87 Difference]: Start difference. First operand has 53 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 28 states have internal predecessors, (37), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-14 11:08:18,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:18,038 INFO L93 Difference]: Finished difference Result 103 states and 187 transitions. [2024-10-14 11:08:18,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:08:18,041 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 135 [2024-10-14 11:08:18,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:18,048 INFO L225 Difference]: With dead ends: 103 [2024-10-14 11:08:18,048 INFO L226 Difference]: Without dead ends: 51 [2024-10-14 11:08:18,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:08:18,055 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:18,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:08:18,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-14 11:08:18,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-10-14 11:08:18,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 11:08:18,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 78 transitions. [2024-10-14 11:08:18,130 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 78 transitions. Word has length 135 [2024-10-14 11:08:18,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:18,131 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 78 transitions. [2024-10-14 11:08:18,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-14 11:08:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 78 transitions. [2024-10-14 11:08:18,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 11:08:18,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:18,135 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:18,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 11:08:18,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:18,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:18,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1279187578, now seen corresponding path program 1 times [2024-10-14 11:08:18,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:18,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824357683] [2024-10-14 11:08:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:18,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:08:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:08:23,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:23,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824357683] [2024-10-14 11:08:23,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824357683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:23,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:23,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 11:08:23,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534693138] [2024-10-14 11:08:23,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:23,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 11:08:23,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:23,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 11:08:23,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:08:23,956 INFO L87 Difference]: Start difference. First operand 51 states and 78 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:25,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:25,529 INFO L93 Difference]: Finished difference Result 89 states and 122 transitions. [2024-10-14 11:08:25,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:08:25,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2024-10-14 11:08:25,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:25,532 INFO L225 Difference]: With dead ends: 89 [2024-10-14 11:08:25,532 INFO L226 Difference]: Without dead ends: 87 [2024-10-14 11:08:25,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:08:25,534 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 80 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:25,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 198 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 11:08:25,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-10-14 11:08:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 60. [2024-10-14 11:08:25,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 11:08:25,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 88 transitions. [2024-10-14 11:08:25,548 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 88 transitions. Word has length 135 [2024-10-14 11:08:25,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:25,549 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 88 transitions. [2024-10-14 11:08:25,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:25,549 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 88 transitions. [2024-10-14 11:08:25,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 11:08:25,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:25,551 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:25,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 11:08:25,551 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:25,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:25,551 INFO L85 PathProgramCache]: Analyzing trace with hash 495819784, now seen corresponding path program 1 times [2024-10-14 11:08:25,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:25,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467854313] [2024-10-14 11:08:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:25,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:08:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:08:31,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:31,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467854313] [2024-10-14 11:08:31,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467854313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:31,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:31,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 11:08:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577514034] [2024-10-14 11:08:31,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:31,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 11:08:31,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:31,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 11:08:31,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:08:31,339 INFO L87 Difference]: Start difference. First operand 60 states and 88 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:33,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:33,023 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2024-10-14 11:08:33,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:08:33,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2024-10-14 11:08:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:33,025 INFO L225 Difference]: With dead ends: 92 [2024-10-14 11:08:33,025 INFO L226 Difference]: Without dead ends: 90 [2024-10-14 11:08:33,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:08:33,027 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 64 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:33,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 220 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 11:08:33,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-14 11:08:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 58. [2024-10-14 11:08:33,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 11:08:33,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2024-10-14 11:08:33,039 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 135 [2024-10-14 11:08:33,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:33,039 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2024-10-14 11:08:33,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2024-10-14 11:08:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 11:08:33,041 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:33,041 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:33,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 11:08:33,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:33,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1000663725, now seen corresponding path program 1 times [2024-10-14 11:08:33,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:33,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987035306] [2024-10-14 11:08:33,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:33,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:08:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:08:38,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:38,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987035306] [2024-10-14 11:08:38,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987035306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:38,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:38,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 11:08:38,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913515370] [2024-10-14 11:08:38,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:38,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 11:08:38,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:38,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 11:08:38,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:08:38,418 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:39,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:39,294 INFO L93 Difference]: Finished difference Result 102 states and 137 transitions. [2024-10-14 11:08:39,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:08:39,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-14 11:08:39,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:39,298 INFO L225 Difference]: With dead ends: 102 [2024-10-14 11:08:39,298 INFO L226 Difference]: Without dead ends: 100 [2024-10-14 11:08:39,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:08:39,299 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 79 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:39,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 215 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 11:08:39,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-10-14 11:08:39,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 62. [2024-10-14 11:08:39,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 11:08:39,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 92 transitions. [2024-10-14 11:08:39,314 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 92 transitions. Word has length 136 [2024-10-14 11:08:39,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:39,314 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 92 transitions. [2024-10-14 11:08:39,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:39,315 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2024-10-14 11:08:39,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 11:08:39,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:39,316 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:39,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 11:08:39,316 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:39,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:39,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1000604143, now seen corresponding path program 1 times [2024-10-14 11:08:39,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:39,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057229645] [2024-10-14 11:08:39,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:39,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:08:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:08:43,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:43,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057229645] [2024-10-14 11:08:43,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057229645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:43,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:43,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 11:08:43,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768978436] [2024-10-14 11:08:43,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:43,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 11:08:43,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:43,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 11:08:43,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:08:43,454 INFO L87 Difference]: Start difference. First operand 62 states and 92 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:45,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:45,792 INFO L93 Difference]: Finished difference Result 120 states and 159 transitions. [2024-10-14 11:08:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 11:08:45,792 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-14 11:08:45,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:45,793 INFO L225 Difference]: With dead ends: 120 [2024-10-14 11:08:45,793 INFO L226 Difference]: Without dead ends: 118 [2024-10-14 11:08:45,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2024-10-14 11:08:45,794 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 79 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:45,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 353 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 11:08:45,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-14 11:08:45,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 65. [2024-10-14 11:08:45,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 11:08:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 98 transitions. [2024-10-14 11:08:45,812 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 98 transitions. Word has length 136 [2024-10-14 11:08:45,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:45,813 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 98 transitions. [2024-10-14 11:08:45,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 98 transitions. [2024-10-14 11:08:45,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 11:08:45,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:45,814 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:45,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 11:08:45,815 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:45,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:45,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1238157577, now seen corresponding path program 1 times [2024-10-14 11:08:45,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:45,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210913844] [2024-10-14 11:08:45,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:45,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:08:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:08:50,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:50,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210913844] [2024-10-14 11:08:50,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210913844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:50,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:50,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 11:08:50,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523262875] [2024-10-14 11:08:50,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:50,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 11:08:50,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:50,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 11:08:50,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:08:50,551 INFO L87 Difference]: Start difference. First operand 65 states and 98 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:52,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:52,703 INFO L93 Difference]: Finished difference Result 175 states and 247 transitions. [2024-10-14 11:08:52,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:08:52,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-14 11:08:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:52,704 INFO L225 Difference]: With dead ends: 175 [2024-10-14 11:08:52,704 INFO L226 Difference]: Without dead ends: 111 [2024-10-14 11:08:52,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-10-14 11:08:52,705 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 88 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:52,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 315 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 11:08:52,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-14 11:08:52,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 80. [2024-10-14 11:08:52,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 49 states have internal predecessors, (61), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 11:08:52,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2024-10-14 11:08:52,729 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 136 [2024-10-14 11:08:52,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:52,730 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2024-10-14 11:08:52,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:08:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2024-10-14 11:08:52,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 11:08:52,731 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:52,731 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:52,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 11:08:52,732 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:52,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:52,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1240004619, now seen corresponding path program 1 times [2024-10-14 11:08:52,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:52,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824415419] [2024-10-14 11:08:52,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:52,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:08:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:08:58,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:58,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824415419] [2024-10-14 11:08:58,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824415419] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:58,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:58,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 11:08:58,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16002835] [2024-10-14 11:08:58,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:58,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 11:08:58,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:58,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 11:08:58,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:08:58,766 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:09:00,478 INFO L93 Difference]: Finished difference Result 109 states and 145 transitions. [2024-10-14 11:09:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:09:00,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-14 11:09:00,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:09:00,481 INFO L225 Difference]: With dead ends: 109 [2024-10-14 11:09:00,481 INFO L226 Difference]: Without dead ends: 107 [2024-10-14 11:09:00,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-10-14 11:09:00,482 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 73 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 11:09:00,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 262 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 11:09:00,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-14 11:09:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 80. [2024-10-14 11:09:00,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 49 states have internal predecessors, (61), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 11:09:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2024-10-14 11:09:00,503 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 136 [2024-10-14 11:09:00,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:09:00,504 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2024-10-14 11:09:00,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:00,505 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2024-10-14 11:09:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 11:09:00,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:09:00,506 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:09:00,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 11:09:00,506 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:09:00,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:09:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1810010351, now seen corresponding path program 1 times [2024-10-14 11:09:00,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:09:00,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823120176] [2024-10-14 11:09:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:09:00,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:09:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:09:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:09:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:09:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:09:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:09:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:09:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:09:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:09:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:09:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:09:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:09:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:09:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:09:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:09:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:09:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:09:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:09:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:09:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:09:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:09:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:09:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:09:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:09:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:06,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:09:06,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:09:06,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823120176] [2024-10-14 11:09:06,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823120176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:09:06,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:09:06,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 11:09:06,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172586128] [2024-10-14 11:09:06,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:09:06,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 11:09:06,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:09:06,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 11:09:06,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:09:06,601 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:07,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:09:07,662 INFO L93 Difference]: Finished difference Result 110 states and 147 transitions. [2024-10-14 11:09:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:09:07,663 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-14 11:09:07,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:09:07,664 INFO L225 Difference]: With dead ends: 110 [2024-10-14 11:09:07,664 INFO L226 Difference]: Without dead ends: 108 [2024-10-14 11:09:07,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:09:07,665 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 68 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 11:09:07,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 243 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 11:09:07,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-14 11:09:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 81. [2024-10-14 11:09:07,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 50 states have internal predecessors, (63), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 11:09:07,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2024-10-14 11:09:07,685 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 136 [2024-10-14 11:09:07,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:09:07,685 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2024-10-14 11:09:07,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:07,685 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2024-10-14 11:09:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 11:09:07,686 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:09:07,687 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:09:07,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 11:09:07,687 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:09:07,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:09:07,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1809950769, now seen corresponding path program 1 times [2024-10-14 11:09:07,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:09:07,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803564183] [2024-10-14 11:09:07,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:09:07,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:09:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:09:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:09:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:09:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:09:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:09:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:09:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:09:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:09:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:09:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:09:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:09:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:09:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:09:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:09:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:09:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:09:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:09:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:09:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:09:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:09:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:09:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:09:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:09:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:11,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:09:11,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:09:11,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803564183] [2024-10-14 11:09:11,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803564183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:09:11,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:09:11,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 11:09:11,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812939168] [2024-10-14 11:09:11,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:09:11,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 11:09:11,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:09:11,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 11:09:11,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:09:11,985 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:09:12,418 INFO L93 Difference]: Finished difference Result 124 states and 163 transitions. [2024-10-14 11:09:12,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 11:09:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-14 11:09:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:09:12,420 INFO L225 Difference]: With dead ends: 124 [2024-10-14 11:09:12,420 INFO L226 Difference]: Without dead ends: 122 [2024-10-14 11:09:12,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:09:12,421 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 65 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 11:09:12,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 390 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 11:09:12,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-14 11:09:12,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 78. [2024-10-14 11:09:12,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 47 states have internal predecessors, (57), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 11:09:12,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 111 transitions. [2024-10-14 11:09:12,438 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 111 transitions. Word has length 136 [2024-10-14 11:09:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:09:12,438 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 111 transitions. [2024-10-14 11:09:12,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 111 transitions. [2024-10-14 11:09:12,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 11:09:12,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:09:12,439 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:09:12,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 11:09:12,439 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:09:12,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:09:12,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2047504203, now seen corresponding path program 1 times [2024-10-14 11:09:12,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:09:12,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261696852] [2024-10-14 11:09:12,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:09:12,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:09:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:09:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:09:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:09:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:09:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:09:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:09:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:09:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:09:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:09:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:09:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:09:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:09:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:09:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:09:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:09:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:09:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:09:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:09:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:09:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:09:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:09:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:09:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:09:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:09:18,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:09:18,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261696852] [2024-10-14 11:09:18,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261696852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:09:18,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:09:18,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 11:09:18,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082011380] [2024-10-14 11:09:18,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:09:18,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 11:09:18,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:09:18,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 11:09:18,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:09:18,726 INFO L87 Difference]: Start difference. First operand 78 states and 111 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:20,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:09:20,293 INFO L93 Difference]: Finished difference Result 180 states and 250 transitions. [2024-10-14 11:09:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:09:20,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-14 11:09:20,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:09:20,295 INFO L225 Difference]: With dead ends: 180 [2024-10-14 11:09:20,295 INFO L226 Difference]: Without dead ends: 113 [2024-10-14 11:09:20,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-10-14 11:09:20,296 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 66 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 11:09:20,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 361 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 11:09:20,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-14 11:09:20,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 78. [2024-10-14 11:09:20,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 47 states have internal predecessors, (57), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 11:09:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 111 transitions. [2024-10-14 11:09:20,316 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 111 transitions. Word has length 136 [2024-10-14 11:09:20,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:09:20,317 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 111 transitions. [2024-10-14 11:09:20,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 111 transitions. [2024-10-14 11:09:20,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 11:09:20,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:09:20,319 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:09:20,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 11:09:20,319 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:09:20,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:09:20,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2049351245, now seen corresponding path program 1 times [2024-10-14 11:09:20,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:09:20,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775465565] [2024-10-14 11:09:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:09:20,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:09:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:09:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:09:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:09:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:09:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:09:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:09:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:09:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:09:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:09:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:09:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:09:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:09:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:09:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:09:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:09:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:09:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:09:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:09:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:09:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:09:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:09:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:09:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:09:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:09:27,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:09:27,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775465565] [2024-10-14 11:09:27,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775465565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:09:27,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:09:27,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 11:09:27,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863346586] [2024-10-14 11:09:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:09:27,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 11:09:27,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:09:27,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 11:09:27,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:09:27,036 INFO L87 Difference]: Start difference. First operand 78 states and 111 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:28,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:09:28,836 INFO L93 Difference]: Finished difference Result 111 states and 148 transitions. [2024-10-14 11:09:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:09:28,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-14 11:09:28,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:09:28,838 INFO L225 Difference]: With dead ends: 111 [2024-10-14 11:09:28,838 INFO L226 Difference]: Without dead ends: 109 [2024-10-14 11:09:28,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-10-14 11:09:28,838 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 59 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:09:28,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 312 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 11:09:28,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-14 11:09:28,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 74. [2024-10-14 11:09:28,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 43 states have internal predecessors, (50), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 11:09:28,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 104 transitions. [2024-10-14 11:09:28,856 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 104 transitions. Word has length 136 [2024-10-14 11:09:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:09:28,856 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 104 transitions. [2024-10-14 11:09:28,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 104 transitions. [2024-10-14 11:09:28,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 11:09:28,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:09:28,857 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:09:28,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 11:09:28,857 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:09:28,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:09:28,857 INFO L85 PathProgramCache]: Analyzing trace with hash 214008004, now seen corresponding path program 1 times [2024-10-14 11:09:28,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:09:28,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987540105] [2024-10-14 11:09:28,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:09:28,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:09:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:09:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:09:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:09:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:09:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:09:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:09:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:09:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:09:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:09:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:09:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:09:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:09:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:09:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:09:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:09:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:09:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:09:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:09:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:09:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:09:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:09:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:09:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 11:09:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:09:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-14 11:09:36,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:09:36,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987540105] [2024-10-14 11:09:36,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987540105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:09:36,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:09:36,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 11:09:36,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065475806] [2024-10-14 11:09:36,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:09:36,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 11:09:36,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:09:36,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 11:09:36,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:09:36,266 INFO L87 Difference]: Start difference. First operand 74 states and 104 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:39,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:09:39,501 INFO L93 Difference]: Finished difference Result 111 states and 148 transitions. [2024-10-14 11:09:39,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 11:09:39,502 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 137 [2024-10-14 11:09:39,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:09:39,504 INFO L225 Difference]: With dead ends: 111 [2024-10-14 11:09:39,504 INFO L226 Difference]: Without dead ends: 109 [2024-10-14 11:09:39,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2024-10-14 11:09:39,505 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 71 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 11:09:39,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 337 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 11:09:39,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-14 11:09:39,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 77. [2024-10-14 11:09:39,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 46 states have internal predecessors, (55), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-14 11:09:39,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2024-10-14 11:09:39,522 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 137 [2024-10-14 11:09:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:09:39,523 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2024-10-14 11:09:39,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-14 11:09:39,523 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2024-10-14 11:09:39,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 11:09:39,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:09:39,524 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:09:39,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 11:09:39,524 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:09:39,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:09:39,524 INFO L85 PathProgramCache]: Analyzing trace with hash 894066374, now seen corresponding path program 1 times [2024-10-14 11:09:39,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:09:39,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970341548] [2024-10-14 11:09:39,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:09:39,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:09:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat