./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 06d48bd39a18f705c3286a70a8cdcced2226e3b2a16c7a38c85f5398d4bcad34 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:57:18,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:57:18,642 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 04:57:18,652 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:57:18,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:57:18,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:57:18,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:57:18,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:57:18,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:57:18,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:57:18,697 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:57:18,697 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:57:18,697 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:57:18,697 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:57:18,697 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:57:18,698 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:57:18,698 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:57:18,698 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:57:18,698 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:57:18,698 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:57:18,698 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:57:18,698 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:57:18,699 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:57:18,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:57:18,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:57:18,700 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:57:18,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:57:18,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:57:18,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:57:18,701 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:57:18,701 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:57:18,701 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:57:18,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:57:18,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:57:18,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:57:18,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:57:18,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:57:18,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:57:18,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:57:18,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:57:18,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:57:18,704 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:57:18,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:57:18,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:57:18,704 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:57:18,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:57:18,704 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E 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 ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06d48bd39a18f705c3286a70a8cdcced2226e3b2a16c7a38c85f5398d4bcad34 [2024-11-14 04:57:19,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:57:19,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:57:19,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:57:19,118 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:57:19,120 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:57:19,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c Unable to find full path for "g++" [2024-11-14 04:57:21,406 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:57:21,672 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:57:21,673 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/sv-benchmarks/c/termination-crafted-lit/GopanReps-CAV2006-Fig1a.c [2024-11-14 04:57:21,682 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/data/4568971b7/186b121488804e03bcb4490be0bc6e5f/FLAGcf876a738 [2024-11-14 04:57:21,700 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/data/4568971b7/186b121488804e03bcb4490be0bc6e5f [2024-11-14 04:57:21,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:57:21,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:57:21,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:57:21,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:57:21,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:57:21,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c63c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21, skipping insertion in model container [2024-11-14 04:57:21,715 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,731 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:57:21,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:57:21,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:57:21,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:57:21,935 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:57:21,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21 WrapperNode [2024-11-14 04:57:21,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:57:21,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:57:21,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:57:21,939 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:57:21,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,974 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-11-14 04:57:21,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:57:21,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:57:21,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:57:21,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:57:21,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,987 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:21,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:22,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:57:22,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:57:22,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:57:22,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:57:22,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (1/1) ... [2024-11-14 04:57:22,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:57:22,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:22,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:57:22,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:57:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:57:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:57:22,186 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:57:22,188 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:57:22,335 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-14 04:57:22,335 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:57:22,381 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:57:22,383 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:57:22,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:57:22 BoogieIcfgContainer [2024-11-14 04:57:22,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:57:22,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:57:22,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:57:22,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:57:22,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:57:21" (1/3) ... [2024-11-14 04:57:22,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e60757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:57:22, skipping insertion in model container [2024-11-14 04:57:22,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:57:21" (2/3) ... [2024-11-14 04:57:22,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e60757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:57:22, skipping insertion in model container [2024-11-14 04:57:22,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:57:22" (3/3) ... [2024-11-14 04:57:22,397 INFO L112 eAbstractionObserver]: Analyzing ICFG GopanReps-CAV2006-Fig1a.c [2024-11-14 04:57:22,420 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:57:22,423 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG GopanReps-CAV2006-Fig1a.c that has 1 procedures, 16 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2024-11-14 04:57:22,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:57:22,528 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=FINITE_AUTOMATA, 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;@7a28a825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:57:22,528 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-14 04:57:22,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:22,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:57:22,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:22,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:57:22,543 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:22,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:22,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2036007, now seen corresponding path program 1 times [2024-11-14 04:57:22,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:22,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899313712] [2024-11-14 04:57:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:22,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:22,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:22,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899313712] [2024-11-14 04:57:22,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899313712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:57:22,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:57:22,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:57:22,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139005777] [2024-11-14 04:57:22,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:57:22,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:57:22,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:22,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:57:22,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:57:22,747 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:22,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:22,821 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2024-11-14 04:57:22,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:57:22,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 04:57:22,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:22,831 INFO L225 Difference]: With dead ends: 39 [2024-11-14 04:57:22,831 INFO L226 Difference]: Without dead ends: 23 [2024-11-14 04:57:22,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:57:22,839 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:22,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:57:22,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-14 04:57:22,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2024-11-14 04:57:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-11-14 04:57:22,885 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 4 [2024-11-14 04:57:22,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:22,886 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-11-14 04:57:22,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:22,886 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-14 04:57:22,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:57:22,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:22,887 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:57:22,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:57:22,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:22,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:22,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2035815, now seen corresponding path program 1 times [2024-11-14 04:57:22,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:22,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663862961] [2024-11-14 04:57:22,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:22,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:22,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:22,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663862961] [2024-11-14 04:57:22,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663862961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:57:22,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:57:22,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 04:57:22,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599010090] [2024-11-14 04:57:22,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:57:22,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:57:22,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:57:22,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:57:22,943 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:22,980 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2024-11-14 04:57:22,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:57:22,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 04:57:22,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:22,981 INFO L225 Difference]: With dead ends: 26 [2024-11-14 04:57:22,981 INFO L226 Difference]: Without dead ends: 24 [2024-11-14 04:57:22,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:57:22,983 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:22,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 11 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:57:22,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-14 04:57:22,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2024-11-14 04:57:22,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:22,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2024-11-14 04:57:22,988 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 4 [2024-11-14 04:57:22,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:22,989 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2024-11-14 04:57:22,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:22,989 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-14 04:57:22,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:57:22,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:22,990 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:57:22,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:57:22,990 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:22,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:22,991 INFO L85 PathProgramCache]: Analyzing trace with hash 63110312, now seen corresponding path program 1 times [2024-11-14 04:57:22,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:22,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251312308] [2024-11-14 04:57:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:23,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:23,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251312308] [2024-11-14 04:57:23,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251312308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:57:23,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:57:23,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 04:57:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047371208] [2024-11-14 04:57:23,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:57:23,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:57:23,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:23,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:57:23,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:57:23,031 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:23,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:23,068 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-11-14 04:57:23,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:57:23,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 04:57:23,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:23,069 INFO L225 Difference]: With dead ends: 20 [2024-11-14 04:57:23,069 INFO L226 Difference]: Without dead ends: 19 [2024-11-14 04:57:23,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:57:23,071 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:23,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:57:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-14 04:57:23,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-14 04:57:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-14 04:57:23,076 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 5 [2024-11-14 04:57:23,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:23,076 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-14 04:57:23,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-14 04:57:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 04:57:23,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:23,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 04:57:23,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:57:23,078 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:23,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:23,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1956419728, now seen corresponding path program 1 times [2024-11-14 04:57:23,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:23,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620855303] [2024-11-14 04:57:23,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:23,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:23,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:23,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620855303] [2024-11-14 04:57:23,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620855303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:57:23,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:57:23,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 04:57:23,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27454360] [2024-11-14 04:57:23,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:57:23,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:57:23,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:23,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:57:23,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:57:23,129 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:23,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:23,152 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-11-14 04:57:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:57:23,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 04:57:23,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:23,153 INFO L225 Difference]: With dead ends: 19 [2024-11-14 04:57:23,154 INFO L226 Difference]: Without dead ends: 18 [2024-11-14 04:57:23,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:57:23,155 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:23,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:57:23,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-14 04:57:23,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-14 04:57:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:23,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-11-14 04:57:23,163 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 6 [2024-11-14 04:57:23,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:23,164 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-11-14 04:57:23,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:23,164 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-11-14 04:57:23,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 04:57:23,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:23,166 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:57:23,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:57:23,166 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:23,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:23,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1719697877, now seen corresponding path program 1 times [2024-11-14 04:57:23,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:23,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25274053] [2024-11-14 04:57:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:23,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:23,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:23,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:23,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25274053] [2024-11-14 04:57:23,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25274053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:23,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626867354] [2024-11-14 04:57:23,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:23,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:23,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:23,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:23,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:57:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:23,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:57:23,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:23,437 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:23,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626867354] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:23,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1988961049] [2024-11-14 04:57:23,562 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 04:57:23,563 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:23,566 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:23,572 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:23,573 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:23,899 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:24,162 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '300#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 51 |ULTIMATE.start_main_~x~0#1|))' at error location [2024-11-14 04:57:24,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:24,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:24,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 7 [2024-11-14 04:57:24,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176661711] [2024-11-14 04:57:24,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:24,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:57:24,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:24,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:57:24,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-14 04:57:24,168 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:24,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:24,335 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2024-11-14 04:57:24,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:57:24,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 04:57:24,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:24,336 INFO L225 Difference]: With dead ends: 34 [2024-11-14 04:57:24,337 INFO L226 Difference]: Without dead ends: 23 [2024-11-14 04:57:24,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:57:24,338 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:24,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 7 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:57:24,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-14 04:57:24,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-14 04:57:24,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:24,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-14 04:57:24,344 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2024-11-14 04:57:24,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:24,344 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-14 04:57:24,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:24,344 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-14 04:57:24,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 04:57:24,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:24,345 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1] [2024-11-14 04:57:24,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:57:24,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:24,546 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:24,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:24,546 INFO L85 PathProgramCache]: Analyzing trace with hash -898134218, now seen corresponding path program 1 times [2024-11-14 04:57:24,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:24,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725113700] [2024-11-14 04:57:24,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:24,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:24,648 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:24,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:24,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725113700] [2024-11-14 04:57:24,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725113700] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:24,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360547250] [2024-11-14 04:57:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:24,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:24,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:24,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:24,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:57:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:24,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:57:24,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:24,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:24,852 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:24,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360547250] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:24,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [218192917] [2024-11-14 04:57:24,855 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-14 04:57:24,856 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:24,856 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:24,856 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:24,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:25,011 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:25,162 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '482#(and (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~x~0#1|))' at error location [2024-11-14 04:57:25,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:25,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:25,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-14 04:57:25,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950489409] [2024-11-14 04:57:25,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:25,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:57:25,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:25,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:57:25,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-14 04:57:25,165 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:25,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:25,253 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2024-11-14 04:57:25,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:57:25,253 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-14 04:57:25,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:25,259 INFO L225 Difference]: With dead ends: 78 [2024-11-14 04:57:25,259 INFO L226 Difference]: Without dead ends: 77 [2024-11-14 04:57:25,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-14 04:57:25,260 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 25 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:25,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 42 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:57:25,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-14 04:57:25,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2024-11-14 04:57:25,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 66 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:25,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 80 transitions. [2024-11-14 04:57:25,273 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 80 transitions. Word has length 17 [2024-11-14 04:57:25,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:25,273 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 80 transitions. [2024-11-14 04:57:25,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:25,274 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 80 transitions. [2024-11-14 04:57:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 04:57:25,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:25,276 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-14 04:57:25,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 04:57:25,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:25,477 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:25,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:25,478 INFO L85 PathProgramCache]: Analyzing trace with hash 187170430, now seen corresponding path program 1 times [2024-11-14 04:57:25,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:25,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124335183] [2024-11-14 04:57:25,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:25,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:57:25,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:25,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124335183] [2024-11-14 04:57:25,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124335183] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:25,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789325957] [2024-11-14 04:57:25,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:25,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:25,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:25,547 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:25,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:57:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:25,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:57:25,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:25,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:25,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:25,717 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:25,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789325957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:25,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1881367794] [2024-11-14 04:57:25,719 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 04:57:25,719 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:25,720 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:25,720 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:25,720 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:25,872 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:26,022 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '650#true' at error location [2024-11-14 04:57:26,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:26,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:26,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-11-14 04:57:26,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606742813] [2024-11-14 04:57:26,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:26,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:57:26,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:26,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:57:26,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-14 04:57:26,025 INFO L87 Difference]: Start difference. First operand 67 states and 80 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:26,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:26,104 INFO L93 Difference]: Finished difference Result 159 states and 200 transitions. [2024-11-14 04:57:26,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:57:26,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-14 04:57:26,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:26,107 INFO L225 Difference]: With dead ends: 159 [2024-11-14 04:57:26,107 INFO L226 Difference]: Without dead ends: 105 [2024-11-14 04:57:26,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-14 04:57:26,108 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:26,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 35 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:57:26,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-14 04:57:26,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-14 04:57:26,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 103 states have (on average 1.145631067961165) internal successors, (118), 104 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2024-11-14 04:57:26,120 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 19 [2024-11-14 04:57:26,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:26,120 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2024-11-14 04:57:26,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:26,120 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2024-11-14 04:57:26,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-14 04:57:26,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:26,122 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1] [2024-11-14 04:57:26,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:57:26,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:26,322 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:26,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:26,323 INFO L85 PathProgramCache]: Analyzing trace with hash -218626734, now seen corresponding path program 2 times [2024-11-14 04:57:26,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:26,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858319616] [2024-11-14 04:57:26,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:26,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:26,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:26,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858319616] [2024-11-14 04:57:26,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858319616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:26,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359364923] [2024-11-14 04:57:26,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:57:26,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:26,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:26,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:26,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:57:26,564 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 04:57:26,564 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:57:26,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:57:26,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:26,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:26,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359364923] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:26,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1559284225] [2024-11-14 04:57:26,904 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-14 04:57:26,904 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:26,904 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:26,904 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:26,904 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:27,000 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:27,258 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1333#(and (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~x~0#1|))' at error location [2024-11-14 04:57:27,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:27,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:27,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-14 04:57:27,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744228026] [2024-11-14 04:57:27,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:27,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 04:57:27,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:27,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 04:57:27,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:57:27,261 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:27,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:27,462 INFO L93 Difference]: Finished difference Result 562 states and 655 transitions. [2024-11-14 04:57:27,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:57:27,463 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-14 04:57:27,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:27,466 INFO L225 Difference]: With dead ends: 562 [2024-11-14 04:57:27,466 INFO L226 Difference]: Without dead ends: 561 [2024-11-14 04:57:27,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 102 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:57:27,467 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 72 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:27,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 78 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:57:27,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-14 04:57:27,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 369. [2024-11-14 04:57:27,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 367 states have (on average 1.1634877384196185) internal successors, (427), 368 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 427 transitions. [2024-11-14 04:57:27,504 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 427 transitions. Word has length 41 [2024-11-14 04:57:27,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:27,504 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 427 transitions. [2024-11-14 04:57:27,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 427 transitions. [2024-11-14 04:57:27,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 04:57:27,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:27,506 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 5, 5, 5, 4, 4, 4, 1, 1] [2024-11-14 04:57:27,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:57:27,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:27,711 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:27,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:27,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1584107456, now seen corresponding path program 2 times [2024-11-14 04:57:27,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:27,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810566529] [2024-11-14 04:57:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:27,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 80 proven. 44 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:27,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810566529] [2024-11-14 04:57:27,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810566529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851490047] [2024-11-14 04:57:27,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:57:27,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:27,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:27,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:27,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:57:27,956 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-14 04:57:27,956 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:57:27,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:57:27,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 80 proven. 44 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:28,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 80 proven. 44 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:28,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851490047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:28,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [23095357] [2024-11-14 04:57:28,161 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 04:57:28,161 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:28,162 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:28,162 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:28,162 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:28,289 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:28,474 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2410#true' at error location [2024-11-14 04:57:28,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:28,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:28,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-14 04:57:28,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983621205] [2024-11-14 04:57:28,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:28,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 04:57:28,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:28,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 04:57:28,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:57:28,477 INFO L87 Difference]: Start difference. First operand 369 states and 427 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:28,558 INFO L93 Difference]: Finished difference Result 595 states and 690 transitions. [2024-11-14 04:57:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:57:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-14 04:57:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:28,560 INFO L225 Difference]: With dead ends: 595 [2024-11-14 04:57:28,560 INFO L226 Difference]: Without dead ends: 247 [2024-11-14 04:57:28,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 149 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:57:28,566 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:28,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 56 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:57:28,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-14 04:57:28,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2024-11-14 04:57:28,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 245 states have (on average 1.1346938775510205) internal successors, (278), 246 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:28,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 278 transitions. [2024-11-14 04:57:28,583 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 278 transitions. Word has length 55 [2024-11-14 04:57:28,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:28,583 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 278 transitions. [2024-11-14 04:57:28,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:28,584 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 278 transitions. [2024-11-14 04:57:28,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 04:57:28,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:28,590 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 1, 1] [2024-11-14 04:57:28,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 04:57:28,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:28,790 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:28,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:28,791 INFO L85 PathProgramCache]: Analyzing trace with hash -590858870, now seen corresponding path program 3 times [2024-11-14 04:57:28,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:28,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805519558] [2024-11-14 04:57:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:28,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:29,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:29,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805519558] [2024-11-14 04:57:29,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805519558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:29,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890664783] [2024-11-14 04:57:29,395 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:57:29,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:29,398 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:29,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:57:29,467 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:57:29,467 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:57:29,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:57:29,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:29,705 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:30,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890664783] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:30,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1825517441] [2024-11-14 04:57:30,356 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-14 04:57:30,357 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:30,357 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:30,358 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:30,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:30,433 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:31,003 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4286#(and (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~x~0#1|))' at error location [2024-11-14 04:57:31,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:31,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:31,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 30 [2024-11-14 04:57:31,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107863127] [2024-11-14 04:57:31,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:31,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-14 04:57:31,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:31,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-14 04:57:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=824, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 04:57:31,007 INFO L87 Difference]: Start difference. First operand 247 states and 278 transitions. Second operand has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 31 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:31,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:31,469 INFO L93 Difference]: Finished difference Result 2228 states and 2599 transitions. [2024-11-14 04:57:31,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-14 04:57:31,485 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 31 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-14 04:57:31,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:31,501 INFO L225 Difference]: With dead ends: 2228 [2024-11-14 04:57:31,501 INFO L226 Difference]: Without dead ends: 2227 [2024-11-14 04:57:31,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 230 SyntacticMatches, 15 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=508, Invalid=824, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 04:57:31,505 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 183 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:31,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 181 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:57:31,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2024-11-14 04:57:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 949. [2024-11-14 04:57:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 947 states have (on average 1.1647307286166844) internal successors, (1103), 948 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:31,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1103 transitions. [2024-11-14 04:57:31,623 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1103 transitions. Word has length 89 [2024-11-14 04:57:31,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:31,624 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 1103 transitions. [2024-11-14 04:57:31,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.741935483870968) internal successors, (178), 31 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:31,625 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1103 transitions. [2024-11-14 04:57:31,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 04:57:31,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:31,628 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 10, 10, 10, 5, 5, 5, 1, 1] [2024-11-14 04:57:31,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 04:57:31,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 04:57:31,832 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:31,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:31,832 INFO L85 PathProgramCache]: Analyzing trace with hash -374318614, now seen corresponding path program 3 times [2024-11-14 04:57:31,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:31,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811414437] [2024-11-14 04:57:31,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:31,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:32,189 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 188 proven. 290 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:32,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:32,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811414437] [2024-11-14 04:57:32,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811414437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:32,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974180632] [2024-11-14 04:57:32,190 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:57:32,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:32,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:32,193 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:32,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:57:32,278 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:57:32,278 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:57:32,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 04:57:32,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 188 proven. 290 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:32,434 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 188 proven. 290 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:32,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974180632] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:32,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [212174258] [2024-11-14 04:57:32,896 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 04:57:32,896 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:32,896 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:32,897 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:32,897 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:32,995 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:33,357 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7948#true' at error location [2024-11-14 04:57:33,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:33,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:33,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-11-14 04:57:33,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973821112] [2024-11-14 04:57:33,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:33,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 04:57:33,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:33,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 04:57:33,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=571, Unknown=0, NotChecked=0, Total=870 [2024-11-14 04:57:33,361 INFO L87 Difference]: Start difference. First operand 949 states and 1103 transitions. Second operand has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:33,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:33,520 INFO L93 Difference]: Finished difference Result 1483 states and 1728 transitions. [2024-11-14 04:57:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 04:57:33,521 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-14 04:57:33,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:33,524 INFO L225 Difference]: With dead ends: 1483 [2024-11-14 04:57:33,525 INFO L226 Difference]: Without dead ends: 591 [2024-11-14 04:57:33,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 245 SyntacticMatches, 10 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=571, Unknown=0, NotChecked=0, Total=870 [2024-11-14 04:57:33,528 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:33,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 83 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:57:33,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-14 04:57:33,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2024-11-14 04:57:33,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 589 states have (on average 1.137521222410866) internal successors, (670), 590 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:33,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 670 transitions. [2024-11-14 04:57:33,556 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 670 transitions. Word has length 91 [2024-11-14 04:57:33,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:33,556 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 670 transitions. [2024-11-14 04:57:33,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:33,556 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 670 transitions. [2024-11-14 04:57:33,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-14 04:57:33,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:33,559 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 26, 22, 22, 22, 5, 5, 5, 1, 1] [2024-11-14 04:57:33,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 04:57:33,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 04:57:33,760 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:33,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:33,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1126201538, now seen corresponding path program 4 times [2024-11-14 04:57:33,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:33,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116436914] [2024-11-14 04:57:33,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:33,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:34,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1886 backedges. 404 proven. 1430 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:34,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:34,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116436914] [2024-11-14 04:57:34,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116436914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:34,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712911478] [2024-11-14 04:57:34,805 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:57:34,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:34,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:34,807 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:34,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 04:57:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:34,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 04:57:34,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1886 backedges. 404 proven. 1430 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:35,177 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1886 backedges. 404 proven. 1430 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:36,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712911478] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:36,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1897811670] [2024-11-14 04:57:36,358 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 04:57:36,361 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:36,361 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:36,361 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:36,361 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:36,459 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:37,229 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10908#true' at error location [2024-11-14 04:57:37,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:37,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:37,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-11-14 04:57:37,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590944631] [2024-11-14 04:57:37,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:37,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-14 04:57:37,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:37,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-14 04:57:37,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1151, Invalid=1711, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 04:57:37,236 INFO L87 Difference]: Start difference. First operand 591 states and 670 transitions. Second operand has 48 states, 48 states have (on average 5.770833333333333) internal successors, (277), 47 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:37,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:37,561 INFO L93 Difference]: Finished difference Result 786 states and 894 transitions. [2024-11-14 04:57:37,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 04:57:37,561 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.770833333333333) internal successors, (277), 47 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2024-11-14 04:57:37,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:37,563 INFO L225 Difference]: With dead ends: 786 [2024-11-14 04:57:37,564 INFO L226 Difference]: Without dead ends: 324 [2024-11-14 04:57:37,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 437 SyntacticMatches, 22 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1904 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1151, Invalid=1711, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 04:57:37,566 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:37,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 173 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:57:37,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-14 04:57:37,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 309. [2024-11-14 04:57:37,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 307 states have (on average 1.0716612377850163) internal successors, (329), 308 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:37,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 329 transitions. [2024-11-14 04:57:37,579 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 329 transitions. Word has length 163 [2024-11-14 04:57:37,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:37,580 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 329 transitions. [2024-11-14 04:57:37,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.770833333333333) internal successors, (277), 47 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:37,580 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 329 transitions. [2024-11-14 04:57:37,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-14 04:57:37,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:37,582 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 1, 1] [2024-11-14 04:57:37,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-14 04:57:37,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:37,785 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:37,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1925863942, now seen corresponding path program 4 times [2024-11-14 04:57:37,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:37,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696972754] [2024-11-14 04:57:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:37,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:39,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:39,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696972754] [2024-11-14 04:57:39,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696972754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:39,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544861462] [2024-11-14 04:57:39,113 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:57:39,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:39,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:39,115 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:39,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 04:57:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:39,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-14 04:57:39,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:39,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:41,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2730 backedges. 0 proven. 2730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:57:41,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544861462] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:41,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [829005648] [2024-11-14 04:57:41,612 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-14 04:57:41,612 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:41,612 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:41,612 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:41,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:41,669 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:42,786 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14368#(and (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~x~0#1|))' at error location [2024-11-14 04:57:42,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:42,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:42,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 62 [2024-11-14 04:57:42,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162198410] [2024-11-14 04:57:42,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:42,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-14 04:57:42,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:42,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-14 04:57:42,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2028, Invalid=2664, Unknown=0, NotChecked=0, Total=4692 [2024-11-14 04:57:42,791 INFO L87 Difference]: Start difference. First operand 309 states and 329 transitions. Second operand has 64 states, 63 states have (on average 5.873015873015873) internal successors, (370), 63 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:43,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:43,438 INFO L93 Difference]: Finished difference Result 1314 states and 1508 transitions. [2024-11-14 04:57:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-14 04:57:43,439 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 5.873015873015873) internal successors, (370), 63 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2024-11-14 04:57:43,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:43,444 INFO L225 Difference]: With dead ends: 1314 [2024-11-14 04:57:43,444 INFO L226 Difference]: Without dead ends: 1313 [2024-11-14 04:57:43,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 486 SyntacticMatches, 31 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3278 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2028, Invalid=2664, Unknown=0, NotChecked=0, Total=4692 [2024-11-14 04:57:43,446 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 182 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:43,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 339 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:57:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2024-11-14 04:57:43,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1279. [2024-11-14 04:57:43,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1277 states have (on average 1.1386061080657792) internal successors, (1454), 1278 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:43,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1454 transitions. [2024-11-14 04:57:43,495 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1454 transitions. Word has length 185 [2024-11-14 04:57:43,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:43,495 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 1454 transitions. [2024-11-14 04:57:43,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 5.873015873015873) internal successors, (370), 63 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:43,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1454 transitions. [2024-11-14 04:57:43,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-11-14 04:57:43,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:43,502 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 50, 46, 46, 46, 5, 5, 5, 1, 1] [2024-11-14 04:57:43,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 04:57:43,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 04:57:43,706 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:43,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:43,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1629862426, now seen corresponding path program 5 times [2024-11-14 04:57:43,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:43,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080102476] [2024-11-14 04:57:43,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:43,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:46,761 INFO L134 CoverageAnalysis]: Checked inductivity of 7190 backedges. 836 proven. 6302 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-14 04:57:46,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:46,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080102476] [2024-11-14 04:57:46,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080102476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:46,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479371533] [2024-11-14 04:57:46,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:57:46,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:46,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:46,765 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:46,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 04:57:46,837 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-14 04:57:46,837 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:57:46,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:57:46,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:47,277 INFO L134 CoverageAnalysis]: Checked inductivity of 7190 backedges. 1090 proven. 70 refuted. 0 times theorem prover too weak. 6030 trivial. 0 not checked. [2024-11-14 04:57:47,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7190 backedges. 1090 proven. 70 refuted. 0 times theorem prover too weak. 6030 trivial. 0 not checked. [2024-11-14 04:57:47,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479371533] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:47,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1729035584] [2024-11-14 04:57:47,658 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 04:57:47,659 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:47,659 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:47,659 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:47,659 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:47,733 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:49,831 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17356#true' at error location [2024-11-14 04:57:49,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:49,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:49,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 7, 7] total 61 [2024-11-14 04:57:49,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387172420] [2024-11-14 04:57:49,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:49,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-14 04:57:49,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:49,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-14 04:57:49,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1864, Invalid=2558, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 04:57:49,836 INFO L87 Difference]: Start difference. First operand 1279 states and 1454 transitions. Second operand has 61 states, 61 states have (on average 5.950819672131147) internal successors, (363), 61 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:50,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:50,301 INFO L93 Difference]: Finished difference Result 3277 states and 3958 transitions. [2024-11-14 04:57:50,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-14 04:57:50,302 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 5.950819672131147) internal successors, (363), 61 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 307 [2024-11-14 04:57:50,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:50,310 INFO L225 Difference]: With dead ends: 3277 [2024-11-14 04:57:50,311 INFO L226 Difference]: Without dead ends: 2271 [2024-11-14 04:57:50,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 856 SyntacticMatches, 46 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3657 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1864, Invalid=2558, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 04:57:50,314 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:50,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 192 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:57:50,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2024-11-14 04:57:50,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 2271. [2024-11-14 04:57:50,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 2269 states have (on average 1.148964301454385) internal successors, (2607), 2270 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:50,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 2607 transitions. [2024-11-14 04:57:50,440 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 2607 transitions. Word has length 307 [2024-11-14 04:57:50,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:50,442 INFO L471 AbstractCegarLoop]: Abstraction has 2271 states and 2607 transitions. [2024-11-14 04:57:50,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 5.950819672131147) internal successors, (363), 61 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 2607 transitions. [2024-11-14 04:57:50,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-14 04:57:50,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:50,456 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 59, 48, 48, 48, 12, 12, 12, 1, 1] [2024-11-14 04:57:50,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-14 04:57:50,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 04:57:50,657 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:50,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:50,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1701516241, now seen corresponding path program 6 times [2024-11-14 04:57:50,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:50,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592690843] [2024-11-14 04:57:50,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:50,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:57:53,532 INFO L134 CoverageAnalysis]: Checked inductivity of 9468 backedges. 2230 proven. 6864 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-11-14 04:57:53,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:57:53,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592690843] [2024-11-14 04:57:53,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592690843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:57:53,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432297310] [2024-11-14 04:57:53,532 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:57:53,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:53,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:57:53,534 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:57:53,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 04:57:53,673 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:57:53,673 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:57:53,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-14 04:57:53,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:57:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 9468 backedges. 2230 proven. 6864 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-11-14 04:57:54,171 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:57:56,000 INFO L134 CoverageAnalysis]: Checked inductivity of 9468 backedges. 2230 proven. 6864 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-11-14 04:57:56,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432297310] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:57:56,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [554781629] [2024-11-14 04:57:56,006 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 04:57:56,007 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:57:56,007 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:57:56,007 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:57:56,007 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:57:56,107 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:57:58,350 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25686#true' at error location [2024-11-14 04:57:58,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:57:58,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:57:58,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 52 [2024-11-14 04:57:58,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404275458] [2024-11-14 04:57:58,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:57:58,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-14 04:57:58,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:57:58,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-14 04:57:58,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1401, Invalid=2021, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 04:57:58,355 INFO L87 Difference]: Start difference. First operand 2271 states and 2607 transitions. Second operand has 53 states, 53 states have (on average 5.886792452830188) internal successors, (312), 52 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:58,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:57:58,695 INFO L93 Difference]: Finished difference Result 4275 states and 4950 transitions. [2024-11-14 04:57:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-14 04:57:58,696 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 5.886792452830188) internal successors, (312), 52 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 361 [2024-11-14 04:57:58,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:57:58,704 INFO L225 Difference]: With dead ends: 4275 [2024-11-14 04:57:58,704 INFO L226 Difference]: Without dead ends: 2289 [2024-11-14 04:57:58,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1131 GetRequests, 979 SyntacticMatches, 95 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3983 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1401, Invalid=2021, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 04:57:58,709 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:57:58,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 176 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:57:58,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2024-11-14 04:57:58,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2289. [2024-11-14 04:57:58,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 2287 states have (on average 1.1477918670747704) internal successors, (2625), 2288 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 2625 transitions. [2024-11-14 04:57:58,802 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 2625 transitions. Word has length 361 [2024-11-14 04:57:58,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:57:58,803 INFO L471 AbstractCegarLoop]: Abstraction has 2289 states and 2625 transitions. [2024-11-14 04:57:58,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.886792452830188) internal successors, (312), 52 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:57:58,803 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 2625 transitions. [2024-11-14 04:57:58,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-14 04:57:58,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:57:58,813 INFO L215 NwaCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 1, 1] [2024-11-14 04:57:58,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 04:57:59,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:57:59,014 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:57:59,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:57:59,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1916483878, now seen corresponding path program 5 times [2024-11-14 04:57:59,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:57:59,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883567450] [2024-11-14 04:57:59,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:57:59,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:57:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:02,971 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:58:02,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:58:02,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883567450] [2024-11-14 04:58:02,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883567450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:58:02,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088747715] [2024-11-14 04:58:02,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:58:02,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:58:02,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:58:02,974 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:58:02,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 04:58:03,198 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 63 check-sat command(s) [2024-11-14 04:58:03,198 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:58:03,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-14 04:58:03,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:58:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:58:03,702 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:58:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 11594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:58:09,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088747715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:58:09,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1425610670] [2024-11-14 04:58:09,675 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-14 04:58:09,675 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:58:09,675 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:58:09,675 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:58:09,675 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:58:09,717 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:58:12,991 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37906#(and (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 1 |ULTIMATE.start_main_~x~0#1|))' at error location [2024-11-14 04:58:12,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:58:12,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:58:12,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 126 [2024-11-14 04:58:12,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605983189] [2024-11-14 04:58:12,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:58:12,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2024-11-14 04:58:12,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:58:12,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2024-11-14 04:58:13,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8140, Invalid=9416, Unknown=0, NotChecked=0, Total=17556 [2024-11-14 04:58:13,004 INFO L87 Difference]: Start difference. First operand 2289 states and 2625 transitions. Second operand has 128 states, 127 states have (on average 5.937007874015748) internal successors, (754), 127 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:58:16,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:58:16,684 INFO L93 Difference]: Finished difference Result 70292 states and 82176 transitions. [2024-11-14 04:58:16,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2024-11-14 04:58:16,685 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 5.937007874015748) internal successors, (754), 127 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2024-11-14 04:58:16,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:58:16,884 INFO L225 Difference]: With dead ends: 70292 [2024-11-14 04:58:16,884 INFO L226 Difference]: Without dead ends: 70291 [2024-11-14 04:58:16,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1192 GetRequests, 998 SyntacticMatches, 63 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12718 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=8140, Invalid=9416, Unknown=0, NotChecked=0, Total=17556 [2024-11-14 04:58:16,903 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 968 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:58:16,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 881 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 04:58:16,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70291 states. [2024-11-14 04:58:18,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70291 to 9065. [2024-11-14 04:58:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9065 states, 9063 states have (on average 1.164956416197727) internal successors, (10558), 9064 states have internal predecessors, (10558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:58:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9065 states to 9065 states and 10558 transitions. [2024-11-14 04:58:18,673 INFO L78 Accepts]: Start accepts. Automaton has 9065 states and 10558 transitions. Word has length 377 [2024-11-14 04:58:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:58:18,674 INFO L471 AbstractCegarLoop]: Abstraction has 9065 states and 10558 transitions. [2024-11-14 04:58:18,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 5.937007874015748) internal successors, (754), 127 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:58:18,675 INFO L276 IsEmpty]: Start isEmpty. Operand 9065 states and 10558 transitions. [2024-11-14 04:58:18,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-14 04:58:18,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:58:18,681 INFO L215 NwaCegarLoop]: trace histogram [63, 63, 62, 51, 51, 51, 12, 12, 12, 1, 1] [2024-11-14 04:58:18,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 04:58:18,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:58:18,882 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:58:18,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:58:18,883 INFO L85 PathProgramCache]: Analyzing trace with hash 938109860, now seen corresponding path program 7 times [2024-11-14 04:58:18,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:58:18,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455395574] [2024-11-14 04:58:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:58:18,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:58:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 10494 backedges. 0 proven. 10494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:58:22,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:58:22,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455395574] [2024-11-14 04:58:22,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455395574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:58:22,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443652701] [2024-11-14 04:58:22,723 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:58:22,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:58:22,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:58:22,726 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:58:22,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 04:58:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:22,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-14 04:58:22,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:58:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 10494 backedges. 0 proven. 10494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:58:23,460 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:58:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10494 backedges. 0 proven. 10494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:58:29,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443652701] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:58:29,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1298305590] [2024-11-14 04:58:29,448 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 04:58:29,449 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:58:29,449 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:58:29,449 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:58:29,449 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:58:29,531 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:58:31,956 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '129912#true' at error location [2024-11-14 04:58:31,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:58:31,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:58:31,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 126 [2024-11-14 04:58:31,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165260191] [2024-11-14 04:58:31,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:58:31,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2024-11-14 04:58:31,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:58:31,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2024-11-14 04:58:31,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8226, Invalid=9596, Unknown=0, NotChecked=0, Total=17822 [2024-11-14 04:58:31,966 INFO L87 Difference]: Start difference. First operand 9065 states and 10558 transitions. Second operand has 128 states, 127 states have (on average 5.968503937007874) internal successors, (758), 127 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:58:34,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:58:34,943 INFO L93 Difference]: Finished difference Result 25118 states and 31994 transitions. [2024-11-14 04:58:34,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2024-11-14 04:58:34,944 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 5.968503937007874) internal successors, (758), 127 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 379 [2024-11-14 04:58:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:58:34,991 INFO L225 Difference]: With dead ends: 25118 [2024-11-14 04:58:34,991 INFO L226 Difference]: Without dead ends: 25117 [2024-11-14 04:58:35,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1198 GetRequests, 1015 SyntacticMatches, 51 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11444 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=8226, Invalid=9596, Unknown=0, NotChecked=0, Total=17822 [2024-11-14 04:58:35,001 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 361 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:58:35,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 401 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:58:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25117 states. [2024-11-14 04:58:36,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25117 to 25117. [2024-11-14 04:58:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25117 states, 25115 states have (on average 1.1647222775233923) internal successors, (29252), 25116 states have internal predecessors, (29252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:58:36,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25117 states to 25117 states and 29252 transitions. [2024-11-14 04:58:36,847 INFO L78 Accepts]: Start accepts. Automaton has 25117 states and 29252 transitions. Word has length 379 [2024-11-14 04:58:36,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:58:36,848 INFO L471 AbstractCegarLoop]: Abstraction has 25117 states and 29252 transitions. [2024-11-14 04:58:36,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 5.968503937007874) internal successors, (758), 127 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:58:36,850 INFO L276 IsEmpty]: Start isEmpty. Operand 25117 states and 29252 transitions. [2024-11-14 04:58:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2024-11-14 04:58:36,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:58:36,910 INFO L215 NwaCegarLoop]: trace histogram [127, 127, 127, 126, 126, 126, 1, 1] [2024-11-14 04:58:36,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 04:58:37,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 04:58:37,114 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:58:37,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:58:37,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1907624090, now seen corresponding path program 6 times [2024-11-14 04:58:37,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:58:37,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566867827] [2024-11-14 04:58:37,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:58:37,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:58:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:51,404 INFO L134 CoverageAnalysis]: Checked inductivity of 47754 backedges. 0 proven. 47754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:58:51,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:58:51,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566867827] [2024-11-14 04:58:51,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566867827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:58:51,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887106869] [2024-11-14 04:58:51,405 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:58:51,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:58:51,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:58:51,407 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:58:51,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 04:58:51,648 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:58:51,649 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:58:51,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-14 04:58:51,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:58:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 47754 backedges. 30954 proven. 0 refuted. 0 times theorem prover too weak. 16800 trivial. 0 not checked. [2024-11-14 04:58:56,543 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:58:56,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887106869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:58:56,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:58:56,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [127] total 180 [2024-11-14 04:58:56,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411966388] [2024-11-14 04:58:56,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:58:56,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-14 04:58:56,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:58:56,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-14 04:58:56,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9686, Invalid=22894, Unknown=0, NotChecked=0, Total=32580 [2024-11-14 04:58:56,552 INFO L87 Difference]: Start difference. First operand 25117 states and 29252 transitions. Second operand has 54 states, 54 states have (on average 5.851851851851852) internal successors, (316), 53 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:58:57,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:58:57,321 INFO L93 Difference]: Finished difference Result 25578 states and 29789 transitions. [2024-11-14 04:58:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-14 04:58:57,322 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 5.851851851851852) internal successors, (316), 53 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 761 [2024-11-14 04:58:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:58:57,330 INFO L225 Difference]: With dead ends: 25578 [2024-11-14 04:58:57,330 INFO L226 Difference]: Without dead ends: 764 [2024-11-14 04:58:57,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6552 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=9686, Invalid=22894, Unknown=0, NotChecked=0, Total=32580 [2024-11-14 04:58:57,354 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 10 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:58:57,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 693 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:58:57,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-14 04:58:57,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 764. [2024-11-14 04:58:57,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 763 states have (on average 1.001310615989515) internal successors, (764), 763 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:58:57,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 764 transitions. [2024-11-14 04:58:57,386 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 764 transitions. Word has length 761 [2024-11-14 04:58:57,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:58:57,387 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 764 transitions. [2024-11-14 04:58:57,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.851851851851852) internal successors, (316), 53 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:58:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 764 transitions. [2024-11-14 04:58:57,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 764 [2024-11-14 04:58:57,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:58:57,394 INFO L215 NwaCegarLoop]: trace histogram [127, 127, 126, 76, 76, 76, 51, 51, 51, 1, 1] [2024-11-14 04:58:57,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 04:58:57,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 04:58:57,598 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:58:57,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:58:57,598 INFO L85 PathProgramCache]: Analyzing trace with hash -551305500, now seen corresponding path program 8 times [2024-11-14 04:58:57,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:58:57,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392190311] [2024-11-14 04:58:57,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:58:57,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:58:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:59:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 40254 backedges. 0 proven. 40254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:59:10,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:59:10,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392190311] [2024-11-14 04:59:10,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392190311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:59:10,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854643751] [2024-11-14 04:59:10,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:59:10,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:59:10,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:59:10,527 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:59:10,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 04:59:10,968 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 77 check-sat command(s) [2024-11-14 04:59:10,968 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:59:10,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 128 conjuncts are in the unsatisfiable core [2024-11-14 04:59:10,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:59:12,008 INFO L134 CoverageAnalysis]: Checked inductivity of 40254 backedges. 0 proven. 40254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:59:12,008 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:59:35,623 INFO L134 CoverageAnalysis]: Checked inductivity of 40254 backedges. 0 proven. 40254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:59:35,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854643751] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:59:35,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1399777152] [2024-11-14 04:59:35,625 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 04:59:35,625 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:59:35,625 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:59:35,626 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:59:35,626 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:59:35,684 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:59:38,230 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '224107#true' at error location [2024-11-14 04:59:38,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:59:38,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:59:38,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [127, 127, 127] total 254 [2024-11-14 04:59:38,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220326706] [2024-11-14 04:59:38,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:59:38,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2024-11-14 04:59:38,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:59:38,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2024-11-14 04:59:38,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32866, Invalid=35516, Unknown=0, NotChecked=0, Total=68382 [2024-11-14 04:59:38,252 INFO L87 Difference]: Start difference. First operand 764 states and 764 transitions. Second operand has 256 states, 255 states have (on average 5.984313725490196) internal successors, (1526), 255 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:59:51,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:59:51,947 INFO L93 Difference]: Finished difference Result 1533 states and 1660 transitions. [2024-11-14 04:59:51,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2024-11-14 04:59:51,948 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 255 states have (on average 5.984313725490196) internal successors, (1526), 255 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 763 [2024-11-14 04:59:51,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:59:51,954 INFO L225 Difference]: With dead ends: 1533 [2024-11-14 04:59:51,954 INFO L226 Difference]: Without dead ends: 1532 [2024-11-14 04:59:51,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2414 GetRequests, 2103 SyntacticMatches, 51 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25716 ImplicationChecksByTransitivity, 32.4s TimeCoverageRelationStatistics Valid=32866, Invalid=35516, Unknown=0, NotChecked=0, Total=68382 [2024-11-14 04:59:51,962 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 627 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:59:51,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 770 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 04:59:51,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2024-11-14 04:59:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1532. [2024-11-14 04:59:52,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.000653167864141) internal successors, (1532), 1531 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:59:52,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1532 transitions. [2024-11-14 04:59:52,021 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1532 transitions. Word has length 763 [2024-11-14 04:59:52,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:59:52,023 INFO L471 AbstractCegarLoop]: Abstraction has 1532 states and 1532 transitions. [2024-11-14 04:59:52,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 255 states have (on average 5.984313725490196) internal successors, (1526), 255 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:59:52,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1532 transitions. [2024-11-14 04:59:52,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1532 [2024-11-14 04:59:52,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:59:52,044 INFO L215 NwaCegarLoop]: trace histogram [255, 255, 254, 204, 204, 204, 51, 51, 51, 1, 1] [2024-11-14 04:59:52,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 04:59:52,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:59:52,245 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 04:59:52,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:59:52,245 INFO L85 PathProgramCache]: Analyzing trace with hash 830629220, now seen corresponding path program 9 times [2024-11-14 04:59:52,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:59:52,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517760156] [2024-11-14 04:59:52,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:59:52,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:59:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 173502 backedges. 0 proven. 173502 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:00:54,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:00:54,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517760156] [2024-11-14 05:00:54,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517760156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:54,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112165083] [2024-11-14 05:00:54,966 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:00:54,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:54,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:54,968 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:54,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 05:00:55,337 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:00:55,337 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:00:55,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-11-14 05:00:55,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:03,052 INFO L134 CoverageAnalysis]: Checked inductivity of 173502 backedges. 91843 proven. 12752 refuted. 0 times theorem prover too weak. 68907 trivial. 0 not checked. [2024-11-14 05:01:03,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:01:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 173502 backedges. 91843 proven. 12752 refuted. 0 times theorem prover too weak. 68907 trivial. 0 not checked. [2024-11-14 05:01:17,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112165083] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:01:17,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1634938713] [2024-11-14 05:01:17,424 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 05:01:17,424 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:01:17,424 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:01:17,425 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:01:17,425 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:01:17,486 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:01:21,923 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '232516#true' at error location [2024-11-14 05:01:21,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:01:21,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:01:21,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [255, 54, 54] total 309 [2024-11-14 05:01:21,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581848871] [2024-11-14 05:01:21,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:01:21,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 310 states [2024-11-14 05:01:21,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:21,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 310 interpolants. [2024-11-14 05:01:21,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34607, Invalid=64933, Unknown=0, NotChecked=0, Total=99540 [2024-11-14 05:01:21,940 INFO L87 Difference]: Start difference. First operand 1532 states and 1532 transitions. Second operand has 310 states, 310 states have (on average 6.474193548387097) internal successors, (2007), 309 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:43,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:43,411 INFO L93 Difference]: Finished difference Result 1532 states and 1532 transitions. [2024-11-14 05:01:43,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2024-11-14 05:01:43,411 INFO L78 Accepts]: Start accepts. Automaton has has 310 states, 310 states have (on average 6.474193548387097) internal successors, (2007), 309 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1531 [2024-11-14 05:01:43,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:43,413 INFO L225 Difference]: With dead ends: 1532 [2024-11-14 05:01:43,413 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:01:43,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5053 GetRequests, 4377 SyntacticMatches, 155 SemanticMatches, 521 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93189 ImplicationChecksByTransitivity, 64.9s TimeCoverageRelationStatistics Valid=93320, Invalid=179686, Unknown=0, NotChecked=0, Total=273006 [2024-11-14 05:01:43,430 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:43,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 05:01:43,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:01:43,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:01:43,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:43,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:01:43,433 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1531 [2024-11-14 05:01:43,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:43,433 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:01:43,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 310 states, 310 states have (on average 6.474193548387097) internal successors, (2007), 309 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:43,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:01:43,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:01:43,438 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-14 05:01:43,438 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-14 05:01:43,438 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-14 05:01:43,438 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-14 05:01:43,439 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-14 05:01:43,439 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-14 05:01:43,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 05:01:43,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:43,642 INFO L407 BasicCegarLoop]: Path program histogram: [9, 6, 1, 1, 1, 1, 1] [2024-11-14 05:01:43,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:01:46,178 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:01:46,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:01:46 BoogieIcfgContainer [2024-11-14 05:01:46,236 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:01:46,237 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:01:46,237 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:01:46,237 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:01:46,238 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:57:22" (3/4) ... [2024-11-14 05:01:46,243 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:01:46,254 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-14 05:01:46,254 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 05:01:46,254 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-14 05:01:46,350 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:01:46,350 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:01:46,350 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:01:46,351 INFO L158 Benchmark]: Toolchain (without parser) took 264646.79ms. Allocated memory was 117.4MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 92.9MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-14 05:01:46,351 INFO L158 Benchmark]: CDTParser took 1.38ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:01:46,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.86ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 83.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:01:46,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.84ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 965.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:01:46,352 INFO L158 Benchmark]: Boogie Preprocessor took 25.98ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.3MB in the end (delta: 704.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:01:46,352 INFO L158 Benchmark]: RCFGBuilder took 382.19ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 72.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:01:46,353 INFO L158 Benchmark]: TraceAbstraction took 263849.65ms. Allocated memory was 117.4MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 71.3MB in the beginning and 1.4GB in the end (delta: -1.4GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-14 05:01:46,354 INFO L158 Benchmark]: Witness Printer took 113.52ms. Allocated memory is still 3.2GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:01:46,357 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.38ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.86ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 83.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.84ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 965.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.98ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.3MB in the end (delta: 704.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.19ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 72.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 263849.65ms. Allocated memory was 117.4MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 71.3MB in the beginning and 1.4GB in the end (delta: -1.4GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 113.52ms. Allocated memory is still 3.2GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 261.2s, OverallIterations: 20, TraceHistogramMax: 255, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 46.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2549 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2549 mSDsluCounter, 4161 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3734 mSDsCounter, 732 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6773 IncrementalHoareTripleChecker+Invalid, 7505 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 732 mSolverCounterUnsat, 427 mSDtfsCounter, 6773 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14950 GetRequests, 12787 SyntacticMatches, 556 SemanticMatches, 1607 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164420 ImplicationChecksByTransitivity, 147.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25117occurred in iteration=17, InterpolantAutomatonStates: 1122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 62762 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 180.4s InterpolantComputationTime, 10319 NumberOfCodeBlocks, 10067 NumberOfCodeBlocksAsserted, 195 NumberOfCheckSat, 14657 ConstructedInterpolants, 0 QuantifiedInterpolants, 37345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8196 ConjunctsInSsa, 580 ConjunctsInUnsatCore, 51 InterpolantComputations, 5 PerfectInterpolantSequences, 394690/871218 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((51 <= x) && (x <= 83)) && (y <= 19)) || (((51 <= x) && (x <= 52)) && (y <= 50))) || ((x == 50) && (y <= 50))) || (((y <= 6) && (x <= 96)) && (51 <= x))) || ((31 == x) && (y <= 31))) || (((x <= 70) && (y <= 32)) && (51 <= x))) || ((y <= 40) && (40 == x))) || (((y <= 44) && (51 <= x)) && (x <= 58))) || ((x == 11) && (y <= 11))) || (((51 <= x) && (y <= 3)) && (x <= 99))) || ((x == 8) && (y <= 8))) || ((x == 36) && (y <= 36))) || ((x == 1) && (y <= 1))) || ((y <= 46) && (46 == x))) || (((y <= 2) && (x <= 100)) && (51 <= x))) || ((y <= 47) && (47 == x))) || (((x <= 60) && (y <= 42)) && (51 <= x))) || ((y <= 12) && (x == 12))) || ((x == 13) && (y <= 13))) || (((y <= 0) && (51 <= x)) && (x <= 102))) || (((x <= 72) && (y <= 30)) && (51 <= x))) || (((x <= 92) && (y <= 10)) && (51 <= x))) || ((2 == x) && (y <= 2))) || ((y <= 29) && (29 == x))) || (((y <= 9) && (51 <= x)) && (x <= 93))) || (((51 <= x) && (x <= 94)) && (y <= 8))) || ((x == 38) && (y <= 38))) || ((16 == x) && (y <= 16))) || (((y <= 37) && (51 <= x)) && (x <= 65))) || (((y <= 45) && (51 <= x)) && (x <= 57))) || (((x <= 66) && (51 <= x)) && (y <= 36))) || (((x <= 75) && (y <= 27)) && (51 <= x))) || ((y <= 7) && (7 == x))) || ((y <= 39) && (x == 39))) || ((y <= 25) && (x == 25))) || ((5 == x) && (y <= 5))) || (((y <= 26) && (x <= 76)) && (51 <= x))) || ((x == 34) && (y <= 34))) || ((y <= 48) && (x == 48))) || (((y <= 14) && (51 <= x)) && (x <= 88))) || (((x <= 77) && (y <= 25)) && (51 <= x))) || (((y <= 24) && (x <= 78)) && (51 <= x))) || ((22 == x) && (y <= 22))) || ((y <= 15) && (x == 15))) || (((y <= 4) && (51 <= x)) && (x <= 98))) || (((x <= 89) && (51 <= x)) && (y <= 13))) || (((y <= 1) && (51 <= x)) && (x <= 101))) || ((y <= 6) && (6 == x))) || (((x <= 71) && (51 <= x)) && (y <= 31))) || ((y <= 28) && (x == 28))) || (((x <= 53) && (y <= 49)) && (51 <= x))) || ((19 == x) && (y <= 19))) || ((y <= 4) && (x == 4))) || ((y <= 24) && (x == 24))) || ((y <= 21) && (21 == x))) || ((3 == x) && (y <= 3))) || (((x <= 84) && (y <= 18)) && (51 <= x))) || (((x <= 82) && (y <= 20)) && (51 <= x))) || (((51 <= x) && (x <= 79)) && (y <= 23))) || (((x <= 68) && (51 <= x)) && (y <= 34))) || ((y <= 45) && (x == 45))) || ((y <= 42) && (42 == x))) || (((x <= 85) && (y <= 17)) && (51 <= x))) || ((y <= 17) && (x == 17))) || (((y <= 47) && (x <= 55)) && (51 <= x))) || ((y == 0) && (x == 0))) || ((y <= 33) && (x == 33))) || ((y <= 20) && (x == 20))) || ((y <= 10) && (x == 10))) || (((y <= 40) && (x <= 62)) && (51 <= x))) || (((y <= 28) && (x <= 74)) && (51 <= x))) || (((x <= 56) && (y <= 46)) && (51 <= x))) || (((x <= 86) && (51 <= x)) && (y <= 16))) || ((y <= 44) && (44 == x))) || (((51 <= x) && (y <= 22)) && (x <= 80))) || (((y <= 21) && (x <= 81)) && (51 <= x))) || ((y <= 27) && (x == 27))) || ((49 == x) && (y <= 49))) || (((y <= 33) && (51 <= x)) && (x <= 69))) || (((y <= 7) && (x <= 95)) && (51 <= x))) || (((y <= 43) && (51 <= x)) && (x <= 59))) || ((y <= 43) && (x == 43))) || ((41 == x) && (y <= 41))) || ((y <= 35) && (35 == x))) || ((32 == x) && (y <= 32))) || ((y <= 14) && (14 == x))) || (((y <= 48) && (x <= 54)) && (51 <= x))) || ((y <= 30) && (30 == x))) || ((23 == x) && (y <= 23))) || ((9 == x) && (y <= 9))) || (((y <= 5) && (51 <= x)) && (x <= 97))) || (((x <= 67) && (y <= 35)) && (51 <= x))) || (((((long) y + 1) <= 0) && (x <= 103)) && (51 <= x))) || ((y <= 37) && (x == 37))) || (((x <= 91) && (y <= 11)) && (51 <= x))) || (((x <= 90) && (y <= 12)) && (51 <= x))) || (((x <= 63) && (y <= 39)) && (51 <= x))) || (((x <= 64) && (y <= 38)) && (51 <= x))) || (((x <= 73) && (y <= 29)) && (51 <= x))) || ((y <= 26) && (x == 26))) || ((y <= 18) && (x == 18))) || ((51 == x) && (y <= 51))) || (((x <= 61) && (51 <= x)) && (y <= 41))) || (((y <= 15) && (x <= 87)) && (51 <= x))) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:01:46,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0494bdc7-cdf1-45d2-ba17-baeeb8d6362a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE