./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_fillercode_fillercodestructure_filler-pe-ci_file-90.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_fillercode_fillercodestructure_filler-pe-ci_file-90.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 eb317fac4733296e764d15c5d1055d4412d25f784c848e329f8f4334cc494698 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 09:10:19,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 09:10:19,320 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 09:10:19,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 09:10:19,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 09:10:19,342 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 09:10:19,343 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 09:10:19,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 09:10:19,344 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 09:10:19,348 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 09:10:19,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 09:10:19,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 09:10:19,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 09:10:19,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 09:10:19,350 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 09:10:19,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 09:10:19,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 09:10:19,355 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 09:10:19,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 09:10:19,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 09:10:19,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 09:10:19,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 09:10:19,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 09:10:19,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 09:10:19,358 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 09:10:19,358 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 09:10:19,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 09:10:19,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 09:10:19,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 09:10:19,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 09:10:19,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 09:10:19,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 09:10:19,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:10:19,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 09:10:19,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 09:10:19,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 09:10:19,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 09:10:19,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 09:10:19,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 09:10:19,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 09:10:19,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 09:10:19,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 09:10:19,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb317fac4733296e764d15c5d1055d4412d25f784c848e329f8f4334cc494698 [2024-10-14 09:10:19,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 09:10:19,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 09:10:19,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 09:10:19,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 09:10:19,622 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 09:10:19,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-90.i [2024-10-14 09:10:21,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 09:10:21,302 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 09:10:21,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-90.i [2024-10-14 09:10:21,313 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdcf54b7d/a57120428ad341ddaa392eaeb30c35b2/FLAG91f22f84c [2024-10-14 09:10:21,326 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdcf54b7d/a57120428ad341ddaa392eaeb30c35b2 [2024-10-14 09:10:21,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 09:10:21,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 09:10:21,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 09:10:21,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 09:10:21,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 09:10:21,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:21,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da27437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21, skipping insertion in model container [2024-10-14 09:10:21,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:21,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 09:10:21,479 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_fillercode_fillercodestructure_filler-pe-ci_file-90.i[919,932] [2024-10-14 09:10:21,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:10:21,630 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 09:10:21,654 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_fillercode_fillercodestructure_filler-pe-ci_file-90.i[919,932] [2024-10-14 09:10:21,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:10:21,776 INFO L204 MainTranslator]: Completed translation [2024-10-14 09:10:21,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21 WrapperNode [2024-10-14 09:10:21,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 09:10:21,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 09:10:21,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 09:10:21,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 09:10:21,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:21,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:21,934 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 256 [2024-10-14 09:10:21,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 09:10:21,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 09:10:21,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 09:10:21,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 09:10:21,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:21,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:21,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:22,007 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 09:10:22,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:22,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:22,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:22,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:22,034 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:22,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:22,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 09:10:22,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 09:10:22,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 09:10:22,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 09:10:22,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (1/1) ... [2024-10-14 09:10:22,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:10:22,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:10:22,075 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 09:10:22,080 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 09:10:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 09:10:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 09:10:22,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 09:10:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 09:10:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 09:10:22,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 09:10:22,200 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 09:10:22,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 09:10:22,619 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-14 09:10:22,619 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 09:10:22,654 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 09:10:22,655 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 09:10:22,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:10:22 BoogieIcfgContainer [2024-10-14 09:10:22,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 09:10:22,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 09:10:22,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 09:10:22,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 09:10:22,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:10:21" (1/3) ... [2024-10-14 09:10:22,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a24f611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:10:22, skipping insertion in model container [2024-10-14 09:10:22,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:10:21" (2/3) ... [2024-10-14 09:10:22,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a24f611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:10:22, skipping insertion in model container [2024-10-14 09:10:22,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:10:22" (3/3) ... [2024-10-14 09:10:22,662 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-90.i [2024-10-14 09:10:22,680 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 09:10:22,681 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 09:10:22,742 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 09:10:22,749 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;@46e02c77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 09:10:22,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 09:10:22,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 66 states have (on average 1.5151515151515151) internal successors, (100), 67 states have internal predecessors, (100), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 09:10:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-14 09:10:22,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:22,770 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:10:22,770 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:22,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:22,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1172605902, now seen corresponding path program 1 times [2024-10-14 09:10:22,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:22,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137446811] [2024-10-14 09:10:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:22,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 09:10:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 09:10:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 09:10:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 09:10:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 09:10:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 09:10:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 09:10:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 09:10:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 09:10:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 09:10:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:10:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:10:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:10:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:10:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:10:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:10:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:10:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:10:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:10:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:10:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:10:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:10:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:10:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-14 09:10:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-14 09:10:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-10-14 09:10:23,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:23,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137446811] [2024-10-14 09:10:23,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137446811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:23,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:23,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 09:10:23,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568814285] [2024-10-14 09:10:23,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:23,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 09:10:23,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:23,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 09:10:23,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 09:10:23,381 INFO L87 Difference]: Start difference. First operand has 105 states, 66 states have (on average 1.5151515151515151) internal successors, (100), 67 states have internal predecessors, (100), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 2 states have call successors, (36) [2024-10-14 09:10:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:23,420 INFO L93 Difference]: Finished difference Result 207 states and 378 transitions. [2024-10-14 09:10:23,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 09:10:23,423 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 2 states have call successors, (36) Word has length 223 [2024-10-14 09:10:23,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:23,430 INFO L225 Difference]: With dead ends: 207 [2024-10-14 09:10:23,430 INFO L226 Difference]: Without dead ends: 103 [2024-10-14 09:10:23,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 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 09:10:23,436 INFO L432 NwaCegarLoop]: 164 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, 164 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 09:10:23,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:10:23,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-14 09:10:23,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-14 09:10:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 65 states have (on average 1.4615384615384615) internal successors, (95), 65 states have internal predecessors, (95), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 09:10:23,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 167 transitions. [2024-10-14 09:10:23,503 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 167 transitions. Word has length 223 [2024-10-14 09:10:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:23,505 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 167 transitions. [2024-10-14 09:10:23,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 2 states have call successors, (36) [2024-10-14 09:10:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 167 transitions. [2024-10-14 09:10:23,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-14 09:10:23,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:23,512 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:10:23,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 09:10:23,514 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:23,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:23,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1994190890, now seen corresponding path program 1 times [2024-10-14 09:10:23,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:23,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560321130] [2024-10-14 09:10:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 09:10:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 09:10:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 09:10:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 09:10:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 09:10:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 09:10:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 09:10:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 09:10:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 09:10:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 09:10:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:10:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:10:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:10:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:10:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:10:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:10:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:10:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:10:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:10:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:10:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:10:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:10:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:10:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-14 09:10:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-14 09:10:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-10-14 09:10:23,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:23,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560321130] [2024-10-14 09:10:23,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560321130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:23,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:23,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 09:10:23,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402022711] [2024-10-14 09:10:23,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:23,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 09:10:23,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:23,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 09:10:23,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:10:23,951 INFO L87 Difference]: Start difference. First operand 103 states and 167 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:24,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:24,016 INFO L93 Difference]: Finished difference Result 255 states and 410 transitions. [2024-10-14 09:10:24,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 09:10:24,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 223 [2024-10-14 09:10:24,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:24,019 INFO L225 Difference]: With dead ends: 255 [2024-10-14 09:10:24,020 INFO L226 Difference]: Without dead ends: 153 [2024-10-14 09:10:24,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:10:24,021 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 70 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:24,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 321 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 09:10:24,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-10-14 09:10:24,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2024-10-14 09:10:24,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 99 states have (on average 1.4545454545454546) internal successors, (144), 100 states have internal predecessors, (144), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-14 09:10:24,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 240 transitions. [2024-10-14 09:10:24,044 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 240 transitions. Word has length 223 [2024-10-14 09:10:24,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:24,045 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 240 transitions. [2024-10-14 09:10:24,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:24,045 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 240 transitions. [2024-10-14 09:10:24,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-14 09:10:24,048 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:24,048 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:10:24,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 09:10:24,048 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:24,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:24,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1491429780, now seen corresponding path program 1 times [2024-10-14 09:10:24,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:24,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739776539] [2024-10-14 09:10:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:24,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 09:10:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 09:10:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 09:10:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 09:10:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 09:10:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 09:10:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 09:10:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 09:10:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 09:10:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 09:10:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:10:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:10:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:10:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:10:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:10:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:10:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:10:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:10:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:10:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:10:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:10:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:10:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:10:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-14 09:10:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-14 09:10:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-10-14 09:10:24,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:24,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739776539] [2024-10-14 09:10:24,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739776539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:24,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:24,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 09:10:24,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893855929] [2024-10-14 09:10:24,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:24,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 09:10:24,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:24,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 09:10:24,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:10:24,366 INFO L87 Difference]: Start difference. First operand 150 states and 240 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:24,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:24,464 INFO L93 Difference]: Finished difference Result 385 states and 613 transitions. [2024-10-14 09:10:24,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 09:10:24,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 223 [2024-10-14 09:10:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:24,469 INFO L225 Difference]: With dead ends: 385 [2024-10-14 09:10:24,469 INFO L226 Difference]: Without dead ends: 236 [2024-10-14 09:10:24,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 09:10:24,471 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 61 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:24,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 321 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 09:10:24,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-10-14 09:10:24,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 232. [2024-10-14 09:10:24,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 167 states have (on average 1.4910179640718564) internal successors, (249), 170 states have internal predecessors, (249), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-14 09:10:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 369 transitions. [2024-10-14 09:10:24,525 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 369 transitions. Word has length 223 [2024-10-14 09:10:24,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:24,525 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 369 transitions. [2024-10-14 09:10:24,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 369 transitions. [2024-10-14 09:10:24,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-10-14 09:10:24,529 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:24,529 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:10:24,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 09:10:24,529 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:24,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:24,530 INFO L85 PathProgramCache]: Analyzing trace with hash 673781330, now seen corresponding path program 1 times [2024-10-14 09:10:24,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:24,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012262277] [2024-10-14 09:10:24,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:24,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 09:10:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 09:10:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 09:10:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 09:10:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 09:10:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 09:10:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 09:10:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 09:10:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 09:10:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 09:10:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:10:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:10:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:10:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:10:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:10:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:10:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:10:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:10:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:10:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:10:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:10:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:10:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:10:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-14 09:10:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-14 09:10:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-10-14 09:10:25,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:25,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012262277] [2024-10-14 09:10:25,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012262277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:25,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:25,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:10:25,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518550281] [2024-10-14 09:10:25,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:25,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:10:25,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:25,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:10:25,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:10:25,357 INFO L87 Difference]: Start difference. First operand 232 states and 369 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:25,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:25,592 INFO L93 Difference]: Finished difference Result 661 states and 1049 transitions. [2024-10-14 09:10:25,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:10:25,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 223 [2024-10-14 09:10:25,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:25,599 INFO L225 Difference]: With dead ends: 661 [2024-10-14 09:10:25,601 INFO L226 Difference]: Without dead ends: 430 [2024-10-14 09:10:25,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:10:25,603 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 100 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:25,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 463 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 09:10:25,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-10-14 09:10:25,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 404. [2024-10-14 09:10:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 300 states have (on average 1.5033333333333334) internal successors, (451), 303 states have internal predecessors, (451), 96 states have call successors, (96), 7 states have call predecessors, (96), 7 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-14 09:10:25,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 643 transitions. [2024-10-14 09:10:25,665 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 643 transitions. Word has length 223 [2024-10-14 09:10:25,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:25,665 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 643 transitions. [2024-10-14 09:10:25,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:25,666 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 643 transitions. [2024-10-14 09:10:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-14 09:10:25,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:25,670 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:10:25,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 09:10:25,671 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:25,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1889436290, now seen corresponding path program 1 times [2024-10-14 09:10:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:25,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450174548] [2024-10-14 09:10:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:10:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:10:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 09:10:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:10:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 09:10:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 09:10:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 09:10:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 09:10:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 09:10:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 09:10:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 09:10:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 09:10:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:10:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 09:10:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:10:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:10:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:10:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:10:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:10:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:10:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:10:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:10:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:10:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:10:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:10:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:10:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:10:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:10:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:10:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:10:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:10:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:10:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:10:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:10:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-14 09:10:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-14 09:10:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:25,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-10-14 09:10:25,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:25,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450174548] [2024-10-14 09:10:25,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450174548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:25,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:25,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 09:10:25,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121359901] [2024-10-14 09:10:25,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:25,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 09:10:25,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:25,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 09:10:25,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 09:10:25,996 INFO L87 Difference]: Start difference. First operand 404 states and 643 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:26,205 INFO L93 Difference]: Finished difference Result 1146 states and 1826 transitions. [2024-10-14 09:10:26,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 09:10:26,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 225 [2024-10-14 09:10:26,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:26,214 INFO L225 Difference]: With dead ends: 1146 [2024-10-14 09:10:26,214 INFO L226 Difference]: Without dead ends: 813 [2024-10-14 09:10:26,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 09:10:26,217 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 162 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:26,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 509 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 09:10:26,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-10-14 09:10:26,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 789. [2024-10-14 09:10:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 621 states have (on average 1.5136876006441224) internal successors, (940), 627 states have internal predecessors, (940), 156 states have call successors, (156), 11 states have call predecessors, (156), 11 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2024-10-14 09:10:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1252 transitions. [2024-10-14 09:10:26,310 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1252 transitions. Word has length 225 [2024-10-14 09:10:26,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:26,311 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1252 transitions. [2024-10-14 09:10:26,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:26,311 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1252 transitions. [2024-10-14 09:10:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-14 09:10:26,313 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:26,314 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:10:26,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 09:10:26,314 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:26,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:26,314 INFO L85 PathProgramCache]: Analyzing trace with hash -424470670, now seen corresponding path program 1 times [2024-10-14 09:10:26,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:26,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320140913] [2024-10-14 09:10:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:26,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 09:10:26,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1411987493] [2024-10-14 09:10:26,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:26,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:10:26,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:10:26,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 09:10:26,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 09:10:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:26,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 09:10:26,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 09:10:32,547 WARN L873 $PredicateComparison]: unable to prove that (or (< 4294967264 (mod (div 8 c_~var_1_3~0) 4294967296)) (exists ((~var_1_4~0 Int)) (and (<= ~var_1_4~0 c_~var_1_3~0) (<= 0 ~var_1_4~0) (<= 4294967265 (mod (div 8 ~var_1_4~0) 4294967296)))) (exists ((~var_1_4~0 Int)) (and (<= ~var_1_4~0 c_~var_1_3~0) (<= 4294967265 (mod (div 8 ~var_1_4~0) 4294967296)) (<= (+ ~var_1_4~0 1) 0)))) is different from true [2024-10-14 09:10:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-10-14 09:10:35,716 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 09:10:35,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:10:35,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320140913] [2024-10-14 09:10:35,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 09:10:35,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411987493] [2024-10-14 09:10:35,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411987493] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:10:35,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:10:35,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 09:10:35,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444416939] [2024-10-14 09:10:35,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:10:35,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 09:10:35,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:10:35,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 09:10:35,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=31, Unknown=1, NotChecked=10, Total=56 [2024-10-14 09:10:35,722 INFO L87 Difference]: Start difference. First operand 789 states and 1252 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:49,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-14 09:10:53,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-14 09:10:54,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:10:54,154 INFO L93 Difference]: Finished difference Result 1089 states and 1708 transitions. [2024-10-14 09:10:54,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 09:10:54,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 227 [2024-10-14 09:10:54,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:10:54,159 INFO L225 Difference]: With dead ends: 1089 [2024-10-14 09:10:54,159 INFO L226 Difference]: Without dead ends: 855 [2024-10-14 09:10:54,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=4, NotChecked=18, Total=132 [2024-10-14 09:10:54,161 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 99 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 73 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 342 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-10-14 09:10:54,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 891 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 191 Invalid, 2 Unknown, 342 Unchecked, 9.4s Time] [2024-10-14 09:10:54,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-10-14 09:10:54,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 805. [2024-10-14 09:10:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 637 states have (on average 1.5180533751962324) internal successors, (967), 643 states have internal predecessors, (967), 156 states have call successors, (156), 11 states have call predecessors, (156), 11 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2024-10-14 09:10:54,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1279 transitions. [2024-10-14 09:10:54,211 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1279 transitions. Word has length 227 [2024-10-14 09:10:54,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:10:54,211 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1279 transitions. [2024-10-14 09:10:54,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:10:54,211 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1279 transitions. [2024-10-14 09:10:54,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-14 09:10:54,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:10:54,213 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:10:54,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 09:10:54,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-14 09:10:54,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:10:54,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:10:54,415 INFO L85 PathProgramCache]: Analyzing trace with hash 276593908, now seen corresponding path program 1 times [2024-10-14 09:10:54,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:10:54,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624145962] [2024-10-14 09:10:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:54,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:10:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 09:10:54,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816962440] [2024-10-14 09:10:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:10:54,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:10:54,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:10:54,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 09:10:54,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 09:10:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:10:54,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 09:10:54,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 09:11:01,659 WARN L873 $PredicateComparison]: unable to prove that (or (< 1 (mod (div 8 c_~var_1_3~0) 4294967296)) (exists ((~var_1_4~0 Int)) (and (<= ~var_1_4~0 c_~var_1_3~0) (<= 2 (mod (div 8 ~var_1_4~0) 4294967296)) (<= (+ ~var_1_4~0 1) 0))) (exists ((~var_1_4~0 Int)) (and (<= ~var_1_4~0 c_~var_1_3~0) (<= 0 ~var_1_4~0) (<= 2 (mod (div 8 ~var_1_4~0) 4294967296))))) is different from true [2024-10-14 09:11:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-10-14 09:11:04,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 09:11:04,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:11:04,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624145962] [2024-10-14 09:11:04,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 09:11:04,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816962440] [2024-10-14 09:11:04,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816962440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:11:04,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:11:04,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 09:11:04,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779555860] [2024-10-14 09:11:04,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:11:04,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 09:11:04,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:11:04,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 09:11:04,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=30, Unknown=1, NotChecked=10, Total=56 [2024-10-14 09:11:04,460 INFO L87 Difference]: Start difference. First operand 805 states and 1279 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:11:18,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-14 09:11:23,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-14 09:11:23,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:11:23,942 INFO L93 Difference]: Finished difference Result 2338 states and 3726 transitions. [2024-10-14 09:11:23,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 09:11:23,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 227 [2024-10-14 09:11:23,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:11:23,951 INFO L225 Difference]: With dead ends: 2338 [2024-10-14 09:11:23,951 INFO L226 Difference]: Without dead ends: 2102 [2024-10-14 09:11:23,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=49, Invalid=84, Unknown=3, NotChecked=20, Total=156 [2024-10-14 09:11:23,954 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 351 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 76 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 521 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-10-14 09:11:23,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 965 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 264 Invalid, 3 Unknown, 521 Unchecked, 10.0s Time] [2024-10-14 09:11:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2024-10-14 09:11:24,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1465. [2024-10-14 09:11:24,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1169 states have (on average 1.523524379811805) internal successors, (1781), 1181 states have internal predecessors, (1781), 276 states have call successors, (276), 19 states have call predecessors, (276), 19 states have return successors, (276), 264 states have call predecessors, (276), 276 states have call successors, (276) [2024-10-14 09:11:24,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2333 transitions. [2024-10-14 09:11:24,027 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2333 transitions. Word has length 227 [2024-10-14 09:11:24,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:11:24,028 INFO L471 AbstractCegarLoop]: Abstraction has 1465 states and 2333 transitions. [2024-10-14 09:11:24,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-10-14 09:11:24,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2333 transitions. [2024-10-14 09:11:24,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-14 09:11:24,030 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:11:24,030 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:11:24,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 09:11:24,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-14 09:11:24,235 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:11:24,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:11:24,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1011276684, now seen corresponding path program 1 times [2024-10-14 09:11:24,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:11:24,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892711376] [2024-10-14 09:11:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:11:24,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:11:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:11:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:11:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 09:11:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:11:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 09:11:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 09:11:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 09:11:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 09:11:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 09:11:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 09:11:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 09:11:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 09:11:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:11:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 09:11:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:11:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:11:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 09:11:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:11:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 09:11:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:11:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 09:11:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:11:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 09:11:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:11:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:11:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:11:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:11:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:11:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:11:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:11:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-14 09:11:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:11:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-14 09:11:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:11:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-14 09:11:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-14 09:11:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 60 proven. 45 refuted. 0 times theorem prover too weak. 2415 trivial. 0 not checked. [2024-10-14 09:11:24,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:11:24,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892711376] [2024-10-14 09:11:24,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892711376] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 09:11:24,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094421039] [2024-10-14 09:11:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:11:24,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:11:24,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:11:24,732 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 09:11:24,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 09:11:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:24,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 09:11:24,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 09:11:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 1275 proven. 45 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-10-14 09:11:26,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 09:11:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 60 proven. 45 refuted. 0 times theorem prover too weak. 2415 trivial. 0 not checked. [2024-10-14 09:11:27,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094421039] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 09:11:27,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 09:11:27,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-10-14 09:11:27,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914796845] [2024-10-14 09:11:27,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 09:11:27,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 09:11:27,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:11:27,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 09:11:27,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 09:11:27,781 INFO L87 Difference]: Start difference. First operand 1465 states and 2333 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-10-14 09:11:29,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 09:11:29,902 INFO L93 Difference]: Finished difference Result 2771 states and 4377 transitions. [2024-10-14 09:11:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 09:11:29,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 227 [2024-10-14 09:11:29,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 09:11:29,909 INFO L225 Difference]: With dead ends: 2771 [2024-10-14 09:11:29,909 INFO L226 Difference]: Without dead ends: 1507 [2024-10-14 09:11:29,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 521 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-10-14 09:11:29,912 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 156 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 09:11:29,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 363 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 09:11:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2024-10-14 09:11:29,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1485. [2024-10-14 09:11:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1184 states have (on average 1.4839527027027026) internal successors, (1757), 1196 states have internal predecessors, (1757), 276 states have call successors, (276), 24 states have call predecessors, (276), 24 states have return successors, (276), 264 states have call predecessors, (276), 276 states have call successors, (276) [2024-10-14 09:11:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2309 transitions. [2024-10-14 09:11:29,986 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2309 transitions. Word has length 227 [2024-10-14 09:11:29,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 09:11:29,987 INFO L471 AbstractCegarLoop]: Abstraction has 1485 states and 2309 transitions. [2024-10-14 09:11:29,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-10-14 09:11:29,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2309 transitions. [2024-10-14 09:11:29,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-14 09:11:29,990 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:11:29,990 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:11:30,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 09:11:30,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:11:30,191 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:11:30,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:11:30,192 INFO L85 PathProgramCache]: Analyzing trace with hash 855393008, now seen corresponding path program 1 times [2024-10-14 09:11:30,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:11:30,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817954184] [2024-10-14 09:11:30,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:11:30,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:11:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 09:11:30,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492584603] [2024-10-14 09:11:30,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:11:30,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 09:11:30,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:11:30,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 09:11:30,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 09:11:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:11:30,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 09:11:30,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 09:11:39,726 WARN L873 $PredicateComparison]: unable to prove that (or (< 4294967264 (mod (div 8 c_~var_1_3~0) 4294967296)) (exists ((~var_1_4~0 Int)) (and (<= ~var_1_4~0 c_~var_1_3~0) (<= 0 ~var_1_4~0) (<= 4294967265 (mod (div 8 ~var_1_4~0) 4294967296)))) (exists ((~var_1_4~0 Int)) (and (<= ~var_1_4~0 c_~var_1_3~0) (<= 4294967265 (mod (div 8 ~var_1_4~0) 4294967296)) (<= (+ ~var_1_4~0 1) 0)))) is different from true [2024-10-14 09:11:43,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-10-14 09:11:43,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 09:11:43,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:11:43,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817954184] [2024-10-14 09:11:43,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 09:11:43,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492584603] [2024-10-14 09:11:43,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492584603] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:11:43,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:11:43,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 09:11:43,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073008070] [2024-10-14 09:11:43,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:11:43,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 09:11:43,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:11:43,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 09:11:43,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=22, Unknown=1, NotChecked=8, Total=42 [2024-10-14 09:11:43,080 INFO L87 Difference]: Start difference. First operand 1485 states and 2309 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36)