./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/egcd-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/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_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-nla/egcd-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/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 32bit --witnessprinter.graph.data.programhash 8191111967e355faaa9e1f9b07a30261823b2d1609aae7d52c8a75e30cb27230 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:46:39,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:46:39,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-13 23:46:39,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:46:39,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:46:39,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:46:39,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:46:39,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:46:39,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:46:39,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:46:39,453 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:46:39,454 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:46:39,454 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:46:39,454 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:46:39,455 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:46:39,455 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:46:39,455 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:46:39,455 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:46:39,455 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:46:39,455 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:46:39,456 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:46:39,456 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:46:39,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:46:39,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:46:39,457 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:46:39,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:46:39,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:46:39,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:46:39,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:46:39,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:46:39,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:46:39,458 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:46:39,458 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:46:39,458 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:46:39,458 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:46:39,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:46:39,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:46:39,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:46:39,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:46:39,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:46:39,459 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_d18762d7-5522-4341-8bf6-32b03eb93539/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8191111967e355faaa9e1f9b07a30261823b2d1609aae7d52c8a75e30cb27230 [2024-11-13 23:46:39,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:46:39,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:46:39,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:46:39,841 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:46:39,842 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:46:39,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-nla/egcd-both-nt.c Unable to find full path for "g++" [2024-11-13 23:46:41,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:46:42,015 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:46:42,015 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/sv-benchmarks/c/termination-nla/egcd-both-nt.c [2024-11-13 23:46:42,023 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/data/b3907fdf0/a8e891a829934866863e24beab7a4e1e/FLAGfa7d92e4d [2024-11-13 23:46:42,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/data/b3907fdf0/a8e891a829934866863e24beab7a4e1e [2024-11-13 23:46:42,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:46:42,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:46:42,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:46:42,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:46:42,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:46:42,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1145d1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42, skipping insertion in model container [2024-11-13 23:46:42,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:46:42,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:46:42,599 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:46:42,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:46:42,637 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:46:42,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42 WrapperNode [2024-11-13 23:46:42,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:46:42,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:46:42,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:46:42,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:46:42,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,677 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2024-11-13 23:46:42,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:46:42,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:46:42,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:46:42,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:46:42,687 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:46:42,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:46:42,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:46:42,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:46:42,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (1/1) ... [2024-11-13 23:46:42,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:46:42,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:42,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:46:42,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:46:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:46:42,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:46:42,867 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:46:42,870 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:46:43,171 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-11-13 23:46:43,171 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:46:43,200 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:46:43,201 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:46:43,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:46:43 BoogieIcfgContainer [2024-11-13 23:46:43,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:46:43,204 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:46:43,204 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:46:43,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:46:43,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:46:42" (1/3) ... [2024-11-13 23:46:43,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43adec82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:46:43, skipping insertion in model container [2024-11-13 23:46:43,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:46:42" (2/3) ... [2024-11-13 23:46:43,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43adec82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:46:43, skipping insertion in model container [2024-11-13 23:46:43,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:46:43" (3/3) ... [2024-11-13 23:46:43,213 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-both-nt.c [2024-11-13 23:46:43,231 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:46:43,235 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-both-nt.c that has 1 procedures, 42 locations, 1 initial locations, 1 loop locations, and 18 error locations. [2024-11-13 23:46:43,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:46:43,333 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;@1812b525, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:46:43,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-13 23:46:43,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 41 states have internal predecessors, (45), 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) [2024-11-13 23:46:43,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 23:46:43,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:43,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-13 23:46:43,347 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:43,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:43,357 INFO L85 PathProgramCache]: Analyzing trace with hash 94342, now seen corresponding path program 1 times [2024-11-13 23:46:43,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:43,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976273156] [2024-11-13 23:46:43,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:43,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:46:43,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097380784] [2024-11-13 23:46:43,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:43,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:43,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:43,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:43,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:46:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:43,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:46:43,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:43,623 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:46:43,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:43,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976273156] [2024-11-13 23:46:43,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:46:43,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097380784] [2024-11-13 23:46:43,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097380784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:43,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:43,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:43,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474695482] [2024-11-13 23:46:43,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:43,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:46:43,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:43,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:46:43,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:46:43,661 INFO L87 Difference]: Start difference. First operand has 42 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 41 states have internal predecessors, (45), 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, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-13 23:46:43,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:43,813 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2024-11-13 23:46:43,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:46:43,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-13 23:46:43,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:43,823 INFO L225 Difference]: With dead ends: 72 [2024-11-13 23:46:43,823 INFO L226 Difference]: Without dead ends: 66 [2024-11-13 23:46:43,826 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 [2024-11-13 23:46:43,829 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:43,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 49 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:43,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-13 23:46:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2024-11-13 23:46:43,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 53 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2024-11-13 23:46:43,867 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 3 [2024-11-13 23:46:43,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:43,867 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2024-11-13 23:46:43,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-13 23:46:43,867 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2024-11-13 23:46:43,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 23:46:43,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:43,868 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 23:46:43,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:46:44,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 23:46:44,069 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:44,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:44,070 INFO L85 PathProgramCache]: Analyzing trace with hash 90664008, now seen corresponding path program 1 times [2024-11-13 23:46:44,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:44,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736959727] [2024-11-13 23:46:44,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:44,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:46:44,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1528176378] [2024-11-13 23:46:44,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:44,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:44,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:44,089 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:44,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:46:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:44,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:46:44,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:44,192 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:46:44,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:44,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736959727] [2024-11-13 23:46:44,193 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:46:44,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528176378] [2024-11-13 23:46:44,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528176378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:44,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:44,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:44,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856811326] [2024-11-13 23:46:44,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:44,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:46:44,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:44,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:46:44,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:46:44,195 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-13 23:46:44,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:44,290 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2024-11-13 23:46:44,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:46:44,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2024-11-13 23:46:44,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:44,292 INFO L225 Difference]: With dead ends: 69 [2024-11-13 23:46:44,292 INFO L226 Difference]: Without dead ends: 68 [2024-11-13 23:46:44,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:46:44,293 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 26 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:44,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 46 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:44,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-13 23:46:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2024-11-13 23:46:44,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.8055555555555556) internal successors, (65), 53 states have internal predecessors, (65), 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) [2024-11-13 23:46:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2024-11-13 23:46:44,300 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 5 [2024-11-13 23:46:44,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:44,300 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2024-11-13 23:46:44,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-13 23:46:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2024-11-13 23:46:44,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 23:46:44,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:44,301 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 23:46:44,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 23:46:44,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-13 23:46:44,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:44,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1484383002, now seen corresponding path program 1 times [2024-11-13 23:46:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:44,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031314208] [2024-11-13 23:46:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:44,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:46:44,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [128684824] [2024-11-13 23:46:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:44,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:44,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:44,521 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:44,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:46:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:44,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:46:44,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:44,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:44,624 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:46:44,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:44,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031314208] [2024-11-13 23:46:44,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:46:44,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128684824] [2024-11-13 23:46:44,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128684824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:44,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:44,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:44,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297177542] [2024-11-13 23:46:44,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:44,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:46:44,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:46:44,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:46:44,626 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-11-13 23:46:44,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:44,745 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2024-11-13 23:46:44,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:46:44,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2024-11-13 23:46:44,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:44,747 INFO L225 Difference]: With dead ends: 69 [2024-11-13 23:46:44,747 INFO L226 Difference]: Without dead ends: 68 [2024-11-13 23:46:44,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:46:44,748 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 65 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:44,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 44 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:44,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-13 23:46:44,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2024-11-13 23:46:44,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 53 states have internal predecessors, (64), 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) [2024-11-13 23:46:44,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2024-11-13 23:46:44,762 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 6 [2024-11-13 23:46:44,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:44,762 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2024-11-13 23:46:44,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-11-13 23:46:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2024-11-13 23:46:44,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 23:46:44,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:44,765 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:44,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 23:46:44,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-13 23:46:44,967 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:44,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:44,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1228767242, now seen corresponding path program 1 times [2024-11-13 23:46:44,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:44,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361985989] [2024-11-13 23:46:44,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:44,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:46:44,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291929743] [2024-11-13 23:46:44,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:44,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:44,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:44,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:44,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:46:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:45,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:46:45,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:45,131 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:46:45,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:45,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361985989] [2024-11-13 23:46:45,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:46:45,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291929743] [2024-11-13 23:46:45,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291929743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:45,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:45,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:46:45,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099513997] [2024-11-13 23:46:45,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:45,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:46:45,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:45,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:46:45,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:46:45,133 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-13 23:46:45,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:45,283 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2024-11-13 23:46:45,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:46:45,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2024-11-13 23:46:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:45,286 INFO L225 Difference]: With dead ends: 65 [2024-11-13 23:46:45,288 INFO L226 Difference]: Without dead ends: 64 [2024-11-13 23:46:45,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:46:45,289 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 40 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:45,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 42 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-13 23:46:45,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 54. [2024-11-13 23:46:45,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.75) internal successors, (63), 53 states have internal predecessors, (63), 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) [2024-11-13 23:46:45,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-11-13 23:46:45,299 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 7 [2024-11-13 23:46:45,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:45,299 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-11-13 23:46:45,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-13 23:46:45,300 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-13 23:46:45,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:46:45,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:45,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:45,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 23:46:45,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:45,503 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:45,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:45,503 INFO L85 PathProgramCache]: Analyzing trace with hash -562921112, now seen corresponding path program 1 times [2024-11-13 23:46:45,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:45,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97285966] [2024-11-13 23:46:45,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:45,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:46:45,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785772502] [2024-11-13 23:46:45,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:45,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:45,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:45,517 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:45,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:46:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:45,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:46:45,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:45,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:46:45,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:45,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97285966] [2024-11-13 23:46:45,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:46:45,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785772502] [2024-11-13 23:46:45,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785772502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:45,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:45,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:46:45,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115706827] [2024-11-13 23:46:45,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:45,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:46:45,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:45,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:46:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:46:45,702 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-13 23:46:45,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:45,855 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2024-11-13 23:46:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:46:45,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-13 23:46:45,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:45,856 INFO L225 Difference]: With dead ends: 69 [2024-11-13 23:46:45,856 INFO L226 Difference]: Without dead ends: 68 [2024-11-13 23:46:45,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:46:45,858 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 39 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:45,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 45 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:45,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-13 23:46:45,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2024-11-13 23:46:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:46:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2024-11-13 23:46:45,872 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 8 [2024-11-13 23:46:45,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:45,872 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2024-11-13 23:46:45,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-11-13 23:46:45,872 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2024-11-13 23:46:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 23:46:45,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:45,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:45,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 23:46:46,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:46,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:46,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:46,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1864498449, now seen corresponding path program 1 times [2024-11-13 23:46:46,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:46,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118497267] [2024-11-13 23:46:46,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:46,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:46,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:46,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:46,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118497267] [2024-11-13 23:46:46,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118497267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:46,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:46,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:46,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613680326] [2024-11-13 23:46:46,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:46,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:46:46,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:46,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:46:46,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:46:46,183 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 23:46:46,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:46,212 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2024-11-13 23:46:46,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:46:46,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 [2024-11-13 23:46:46,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:46,214 INFO L225 Difference]: With dead ends: 54 [2024-11-13 23:46:46,214 INFO L226 Difference]: Without dead ends: 53 [2024-11-13 23:46:46,214 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 [2024-11-13 23:46:46,215 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 1 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:46,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 64 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:46:46,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-13 23:46:46,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-13 23:46:46,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 52 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) [2024-11-13 23:46:46,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2024-11-13 23:46:46,220 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 11 [2024-11-13 23:46:46,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:46,221 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2024-11-13 23:46:46,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 23:46:46,221 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2024-11-13 23:46:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 23:46:46,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:46,222 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:46,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 23:46:46,222 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:46,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:46,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1864498001, now seen corresponding path program 1 times [2024-11-13 23:46:46,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:46,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659578500] [2024-11-13 23:46:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:46,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:46,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:46,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:46,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659578500] [2024-11-13 23:46:46,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659578500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:46,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:46,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:46,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945574972] [2024-11-13 23:46:46,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:46,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:46:46,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:46,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:46:46,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:46:46,278 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 23:46:46,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:46,303 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2024-11-13 23:46:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:46:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 [2024-11-13 23:46:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:46,305 INFO L225 Difference]: With dead ends: 53 [2024-11-13 23:46:46,305 INFO L226 Difference]: Without dead ends: 52 [2024-11-13 23:46:46,305 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 [2024-11-13 23:46:46,306 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:46,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 63 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:46:46,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-13 23:46:46,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-13 23:46:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 51 states have internal predecessors, (59), 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) [2024-11-13 23:46:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2024-11-13 23:46:46,313 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 11 [2024-11-13 23:46:46,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:46,314 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2024-11-13 23:46:46,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-13 23:46:46,314 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2024-11-13 23:46:46,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 23:46:46,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:46,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:46,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 23:46:46,315 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:46,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:46,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1964877147, now seen corresponding path program 1 times [2024-11-13 23:46:46,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:46,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487192103] [2024-11-13 23:46:46,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:46,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:46,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:46,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:46,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487192103] [2024-11-13 23:46:46,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487192103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:46,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:46,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:46,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175664426] [2024-11-13 23:46:46,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:46,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:46:46,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:46,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:46:46,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:46:46,447 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-13 23:46:46,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:46,549 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2024-11-13 23:46:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:46:46,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-13 23:46:46,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:46,550 INFO L225 Difference]: With dead ends: 63 [2024-11-13 23:46:46,550 INFO L226 Difference]: Without dead ends: 62 [2024-11-13 23:46:46,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:46:46,551 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:46,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 41 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:46,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-13 23:46:46,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-13 23:46:46,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 61 states have internal predecessors, (70), 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) [2024-11-13 23:46:46,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2024-11-13 23:46:46,566 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 12 [2024-11-13 23:46:46,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:46,566 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2024-11-13 23:46:46,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-13 23:46:46,566 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2024-11-13 23:46:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 23:46:46,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:46,567 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:46,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 23:46:46,567 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:46,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1964863245, now seen corresponding path program 1 times [2024-11-13 23:46:46,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:46,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003931404] [2024-11-13 23:46:46,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:46,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:46,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:46,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:46,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003931404] [2024-11-13 23:46:46,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003931404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:46,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:46,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:46,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912948764] [2024-11-13 23:46:46,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:46,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:46:46,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:46,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:46:46,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:46:46,684 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-13 23:46:46,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:46,756 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2024-11-13 23:46:46,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:46:46,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-13 23:46:46,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:46,757 INFO L225 Difference]: With dead ends: 65 [2024-11-13 23:46:46,757 INFO L226 Difference]: Without dead ends: 64 [2024-11-13 23:46:46,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:46:46,758 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:46,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 41 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:46,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-13 23:46:46,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-13 23:46:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 48 states have (on average 1.5) internal successors, (72), 63 states have internal predecessors, (72), 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) [2024-11-13 23:46:46,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2024-11-13 23:46:46,771 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 12 [2024-11-13 23:46:46,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:46,772 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2024-11-13 23:46:46,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-13 23:46:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2024-11-13 23:46:46,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 23:46:46,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:46,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:46,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 23:46:46,773 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:46,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:46,774 INFO L85 PathProgramCache]: Analyzing trace with hash 781649491, now seen corresponding path program 1 times [2024-11-13 23:46:46,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:46,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166209150] [2024-11-13 23:46:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:46,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:46,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:46,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166209150] [2024-11-13 23:46:46,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166209150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:46,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:46,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:46,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072968194] [2024-11-13 23:46:46,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:46,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:46:46,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:46,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:46:46,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:46:46,846 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-13 23:46:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:46,948 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2024-11-13 23:46:46,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:46:46,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2024-11-13 23:46:46,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:46,949 INFO L225 Difference]: With dead ends: 70 [2024-11-13 23:46:46,949 INFO L226 Difference]: Without dead ends: 68 [2024-11-13 23:46:46,949 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 [2024-11-13 23:46:46,950 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:46,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 47 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:46,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-13 23:46:46,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2024-11-13 23:46:46,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 66 states have internal predecessors, (76), 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) [2024-11-13 23:46:46,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 76 transitions. [2024-11-13 23:46:46,956 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 76 transitions. Word has length 13 [2024-11-13 23:46:46,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:46,957 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 76 transitions. [2024-11-13 23:46:46,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-13 23:46:46,957 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2024-11-13 23:46:46,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 23:46:46,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:46,957 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:46,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 23:46:46,958 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:46,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:46,958 INFO L85 PathProgramCache]: Analyzing trace with hash 781218515, now seen corresponding path program 1 times [2024-11-13 23:46:46,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:46,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310891299] [2024-11-13 23:46:46,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:46,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:46,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:46,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:46,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310891299] [2024-11-13 23:46:46,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310891299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:46,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:46,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:46,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486655226] [2024-11-13 23:46:46,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:46,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:46:46,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:46:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:46:46,995 INFO L87 Difference]: Start difference. First operand 67 states and 76 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-13 23:46:47,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:47,042 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2024-11-13 23:46:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:46:47,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2024-11-13 23:46:47,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:47,043 INFO L225 Difference]: With dead ends: 70 [2024-11-13 23:46:47,043 INFO L226 Difference]: Without dead ends: 68 [2024-11-13 23:46:47,044 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 [2024-11-13 23:46:47,044 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 5 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:47,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 49 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:46:47,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-13 23:46:47,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-13 23:46:47,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 67 states have internal predecessors, (76), 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) [2024-11-13 23:46:47,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2024-11-13 23:46:47,050 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 13 [2024-11-13 23:46:47,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:47,050 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2024-11-13 23:46:47,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-11-13 23:46:47,051 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2024-11-13 23:46:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 23:46:47,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:47,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:47,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 23:46:47,051 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:47,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash -454113387, now seen corresponding path program 1 times [2024-11-13 23:46:47,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:47,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997330939] [2024-11-13 23:46:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:47,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:47,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:47,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997330939] [2024-11-13 23:46:47,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997330939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:47,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:47,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007707877] [2024-11-13 23:46:47,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:47,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:46:47,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:47,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:46:47,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:46:47,096 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-13 23:46:47,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:47,199 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2024-11-13 23:46:47,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:46:47,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2024-11-13 23:46:47,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:47,201 INFO L225 Difference]: With dead ends: 74 [2024-11-13 23:46:47,201 INFO L226 Difference]: Without dead ends: 72 [2024-11-13 23:46:47,201 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 [2024-11-13 23:46:47,201 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:47,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 47 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:47,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-13 23:46:47,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2024-11-13 23:46:47,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 70 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) [2024-11-13 23:46:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2024-11-13 23:46:47,216 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 15 [2024-11-13 23:46:47,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:47,216 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2024-11-13 23:46:47,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-13 23:46:47,217 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2024-11-13 23:46:47,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 23:46:47,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:47,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:47,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 23:46:47,218 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:47,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:47,218 INFO L85 PathProgramCache]: Analyzing trace with hash -868281771, now seen corresponding path program 1 times [2024-11-13 23:46:47,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:47,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055166037] [2024-11-13 23:46:47,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:47,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:47,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:47,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:47,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055166037] [2024-11-13 23:46:47,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055166037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:47,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:46:47,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:46:47,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696669661] [2024-11-13 23:46:47,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:47,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:46:47,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:46:47,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:46:47,286 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-13 23:46:47,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:47,386 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2024-11-13 23:46:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:46:47,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2024-11-13 23:46:47,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:47,387 INFO L225 Difference]: With dead ends: 74 [2024-11-13 23:46:47,387 INFO L226 Difference]: Without dead ends: 72 [2024-11-13 23:46:47,387 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 [2024-11-13 23:46:47,388 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:47,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 49 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:47,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-13 23:46:47,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-13 23:46:47,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 71 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) [2024-11-13 23:46:47,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2024-11-13 23:46:47,394 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 15 [2024-11-13 23:46:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:47,395 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2024-11-13 23:46:47,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-13 23:46:47,395 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2024-11-13 23:46:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:46:47,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:47,395 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:47,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 23:46:47,396 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:47,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1683701929, now seen corresponding path program 1 times [2024-11-13 23:46:47,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:47,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814627654] [2024-11-13 23:46:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:47,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:46:47,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536990058] [2024-11-13 23:46:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:47,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:47,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:47,408 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:47,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:46:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:47,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:46:47,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:47,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:48,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:48,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:48,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814627654] [2024-11-13 23:46:48,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:46:48,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536990058] [2024-11-13 23:46:48,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536990058] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:46:48,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1623101336] [2024-11-13 23:46:48,193 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2024-11-13 23:46:48,193 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:46:48,196 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:46:48,201 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:46:48,201 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:46:49,250 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:46:50,386 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1982#(exists ((|v_ULTIMATE.start_main_~x~0#1_23| Int) (|v_ULTIMATE.start_main_~q~0#1_37| Int)) (and (<= |v_ULTIMATE.start_main_~x~0#1_23| 2147483647) (<= |ULTIMATE.start_main_~a~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= (+ 2147483649 (* |v_ULTIMATE.start_main_~x~0#1_23| |v_ULTIMATE.start_main_~q~0#1_37|)) 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= 1 |v_ULTIMATE.start_main_~x~0#1_23|) (= |ULTIMATE.start_main_~s~0#1| 1)))' at error location [2024-11-13 23:46:50,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:46:50,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:46:50,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2024-11-13 23:46:50,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37500355] [2024-11-13 23:46:50,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:46:50,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 23:46:50,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:50,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 23:46:50,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-13 23:46:50,387 INFO L87 Difference]: Start difference. First operand 72 states and 80 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) [2024-11-13 23:46:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:50,527 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2024-11-13 23:46:50,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:46:50,528 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 [2024-11-13 23:46:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:50,528 INFO L225 Difference]: With dead ends: 112 [2024-11-13 23:46:50,529 INFO L226 Difference]: Without dead ends: 109 [2024-11-13 23:46:50,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2024-11-13 23:46:50,530 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 175 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:50,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 88 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:50,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-13 23:46:50,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 79. [2024-11-13 23:46:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 78 states have internal predecessors, (90), 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) [2024-11-13 23:46:50,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2024-11-13 23:46:50,535 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 17 [2024-11-13 23:46:50,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:50,536 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2024-11-13 23:46:50,536 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) [2024-11-13 23:46:50,536 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2024-11-13 23:46:50,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 23:46:50,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:50,537 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:50,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 23:46:50,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:50,737 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:50,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash 655152289, now seen corresponding path program 1 times [2024-11-13 23:46:50,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:50,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689248128] [2024-11-13 23:46:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:46:50,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [786698485] [2024-11-13 23:46:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:50,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:50,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:50,755 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:50,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 23:46:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:50,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:46:50,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:50,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:53,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:53,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689248128] [2024-11-13 23:46:53,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:46:53,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786698485] [2024-11-13 23:46:53,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786698485] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:46:53,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [791292680] [2024-11-13 23:46:53,577 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2024-11-13 23:46:53,577 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:46:53,577 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:46:53,578 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:46:53,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:46:54,259 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:46:55,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [791292680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:55,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:46:55,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [3, 3] total 16 [2024-11-13 23:46:55,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729333935] [2024-11-13 23:46:55,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:55,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 23:46:55,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:55,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 23:46:55,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=169, Unknown=1, NotChecked=0, Total=272 [2024-11-13 23:46:55,164 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) [2024-11-13 23:46:56,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:56,721 INFO L93 Difference]: Finished difference Result 107 states and 120 transitions. [2024-11-13 23:46:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:46:56,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) Word has length 18 [2024-11-13 23:46:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:56,722 INFO L225 Difference]: With dead ends: 107 [2024-11-13 23:46:56,722 INFO L226 Difference]: Without dead ends: 96 [2024-11-13 23:46:56,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=193, Invalid=312, Unknown=1, NotChecked=0, Total=506 [2024-11-13 23:46:56,723 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:56,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 14 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 23:46:56,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-13 23:46:56,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-13 23:46:56,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 80 states have (on average 1.3625) internal successors, (109), 95 states have internal predecessors, (109), 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) [2024-11-13 23:46:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2024-11-13 23:46:56,729 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 18 [2024-11-13 23:46:56,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:56,729 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2024-11-13 23:46:56,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) [2024-11-13 23:46:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2024-11-13 23:46:56,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 23:46:56,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:56,730 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:56,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 23:46:56,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 23:46:56,931 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:56,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:56,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1477444426, now seen corresponding path program 1 times [2024-11-13 23:46:56,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:56,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90647431] [2024-11-13 23:46:56,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:56,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:57,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:57,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90647431] [2024-11-13 23:46:57,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90647431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:57,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875338942] [2024-11-13 23:46:57,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:57,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:57,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:57,025 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:57,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 23:46:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:57,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:46:57,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:57,199 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:57,200 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:46:57,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875338942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:57,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:46:57,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 23:46:57,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702065366] [2024-11-13 23:46:57,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:57,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:46:57,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:57,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:46:57,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 23:46:57,202 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-13 23:46:57,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:57,304 INFO L93 Difference]: Finished difference Result 96 states and 109 transitions. [2024-11-13 23:46:57,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:46:57,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2024-11-13 23:46:57,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:57,306 INFO L225 Difference]: With dead ends: 96 [2024-11-13 23:46:57,306 INFO L226 Difference]: Without dead ends: 95 [2024-11-13 23:46:57,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-13 23:46:57,307 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 53 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:57,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 40 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:57,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-13 23:46:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-13 23:46:57,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 80 states have (on average 1.3375) internal successors, (107), 94 states have internal predecessors, (107), 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) [2024-11-13 23:46:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2024-11-13 23:46:57,316 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 26 [2024-11-13 23:46:57,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:57,317 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2024-11-13 23:46:57,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-13 23:46:57,317 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2024-11-13 23:46:57,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 23:46:57,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:57,318 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:57,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 23:46:57,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 23:46:57,518 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:57,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:57,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1477430524, now seen corresponding path program 1 times [2024-11-13 23:46:57,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:57,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101036543] [2024-11-13 23:46:57,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:57,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:57,594 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:57,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:57,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101036543] [2024-11-13 23:46:57,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101036543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:57,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074356326] [2024-11-13 23:46:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:57,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:57,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:57,599 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:57,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 23:46:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:57,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:46:57,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:57,806 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:57,806 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:46:57,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074356326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:57,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:46:57,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2024-11-13 23:46:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842130761] [2024-11-13 23:46:57,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:57,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:46:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:57,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:46:57,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:46:57,808 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-13 23:46:57,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:57,967 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2024-11-13 23:46:57,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:46:57,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2024-11-13 23:46:57,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:57,969 INFO L225 Difference]: With dead ends: 99 [2024-11-13 23:46:57,969 INFO L226 Difference]: Without dead ends: 98 [2024-11-13 23:46:57,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-13 23:46:57,969 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 60 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:57,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 48 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:57,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-13 23:46:57,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 95. [2024-11-13 23:46:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 80 states have (on average 1.325) internal successors, (106), 94 states have internal predecessors, (106), 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) [2024-11-13 23:46:57,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 106 transitions. [2024-11-13 23:46:57,978 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 106 transitions. Word has length 26 [2024-11-13 23:46:57,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:57,979 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 106 transitions. [2024-11-13 23:46:57,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-11-13 23:46:57,979 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 106 transitions. [2024-11-13 23:46:57,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 23:46:57,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:57,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:58,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 23:46:58,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 23:46:58,182 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:58,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:58,182 INFO L85 PathProgramCache]: Analyzing trace with hash -466963658, now seen corresponding path program 1 times [2024-11-13 23:46:58,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:58,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607486566] [2024-11-13 23:46:58,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:58,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:58,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:58,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607486566] [2024-11-13 23:46:58,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607486566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:58,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705500363] [2024-11-13 23:46:58,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:58,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:58,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:58,246 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:58,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 23:46:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:58,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:46:58,304 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:58,434 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:46:58,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705500363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:46:58,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:46:58,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-13 23:46:58,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597729584] [2024-11-13 23:46:58,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:46:58,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:46:58,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:46:58,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:46:58,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:46:58,436 INFO L87 Difference]: Start difference. First operand 95 states and 106 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-13 23:46:58,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:46:58,560 INFO L93 Difference]: Finished difference Result 114 states and 133 transitions. [2024-11-13 23:46:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:46:58,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2024-11-13 23:46:58,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:46:58,562 INFO L225 Difference]: With dead ends: 114 [2024-11-13 23:46:58,562 INFO L226 Difference]: Without dead ends: 112 [2024-11-13 23:46:58,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:46:58,563 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:46:58,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 46 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:46:58,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-13 23:46:58,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 93. [2024-11-13 23:46:58,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 80 states have (on average 1.275) internal successors, (102), 92 states have internal predecessors, (102), 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) [2024-11-13 23:46:58,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2024-11-13 23:46:58,569 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 27 [2024-11-13 23:46:58,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:46:58,569 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2024-11-13 23:46:58,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-13 23:46:58,570 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2024-11-13 23:46:58,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 23:46:58,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:46:58,571 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:46:58,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 23:46:58,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 23:46:58,775 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:46:58,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:46:58,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1590971444, now seen corresponding path program 1 times [2024-11-13 23:46:58,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:46:58,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548164538] [2024-11-13 23:46:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:58,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:46:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:58,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:46:58,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548164538] [2024-11-13 23:46:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548164538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:58,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71971897] [2024-11-13 23:46:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:46:58,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:58,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:58,837 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:58,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 23:46:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:46:58,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:46:58,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:59,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:46:59,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71971897] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:46:59,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [122726209] [2024-11-13 23:46:59,097 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-13 23:46:59,097 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:46:59,097 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:46:59,098 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:46:59,098 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:46:59,658 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:47:00,899 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3597#(and (<= |ULTIMATE.start_main_~a~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~q~0#1_56| Int) (|v_ULTIMATE.start_main_~p~0#1_23| Int)) (and (<= (+ 2147483647 |v_ULTIMATE.start_main_~q~0#1_56|) 0) (= |v_ULTIMATE.start_main_~p~0#1_23| 1) (= |ULTIMATE.start_main_~b~0#1| (+ |ULTIMATE.start_main_~y~0#1| (* |v_ULTIMATE.start_main_~q~0#1_56| |ULTIMATE.start_main_~x~0#1|))) (= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= |ULTIMATE.start_main_~s~0#1| 1))))' at error location [2024-11-13 23:47:00,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:47:00,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:47:00,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-13 23:47:00,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550826726] [2024-11-13 23:47:00,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:47:00,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 23:47:00,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:00,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 23:47:00,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-13 23:47:00,901 INFO L87 Difference]: Start difference. First operand 93 states and 102 transitions. Second operand has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 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) [2024-11-13 23:47:01,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:01,137 INFO L93 Difference]: Finished difference Result 214 states and 242 transitions. [2024-11-13 23:47:01,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:47:01,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 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 28 [2024-11-13 23:47:01,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:01,140 INFO L225 Difference]: With dead ends: 214 [2024-11-13 23:47:01,140 INFO L226 Difference]: Without dead ends: 212 [2024-11-13 23:47:01,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 60 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2024-11-13 23:47:01,142 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 93 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:01,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 123 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:47:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-13 23:47:01,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 182. [2024-11-13 23:47:01,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 169 states have (on average 1.3254437869822486) internal successors, (224), 181 states have internal predecessors, (224), 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) [2024-11-13 23:47:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 224 transitions. [2024-11-13 23:47:01,158 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 224 transitions. Word has length 28 [2024-11-13 23:47:01,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:01,159 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 224 transitions. [2024-11-13 23:47:01,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 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) [2024-11-13 23:47:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 224 transitions. [2024-11-13 23:47:01,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 23:47:01,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:01,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:01,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 23:47:01,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:01,361 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:01,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:01,361 INFO L85 PathProgramCache]: Analyzing trace with hash -2075474440, now seen corresponding path program 1 times [2024-11-13 23:47:01,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:01,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114482706] [2024-11-13 23:47:01,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:01,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:01,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:01,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114482706] [2024-11-13 23:47:01,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114482706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:47:01,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782318286] [2024-11-13 23:47:01,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:01,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:01,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:47:01,433 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:47:01,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 23:47:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:01,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:47:01,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:01,627 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:47:01,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782318286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:47:01,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:47:01,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-13 23:47:01,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460762475] [2024-11-13 23:47:01,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:47:01,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:47:01,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:01,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:47:01,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:47:01,628 INFO L87 Difference]: Start difference. First operand 182 states and 224 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-13 23:47:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:01,692 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2024-11-13 23:47:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:47:01,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2024-11-13 23:47:01,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:01,694 INFO L225 Difference]: With dead ends: 195 [2024-11-13 23:47:01,695 INFO L226 Difference]: Without dead ends: 194 [2024-11-13 23:47:01,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:47:01,696 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:01,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 43 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:47:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-13 23:47:01,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 190. [2024-11-13 23:47:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 177 states have (on average 1.3163841807909604) internal successors, (233), 189 states have internal predecessors, (233), 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) [2024-11-13 23:47:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 233 transitions. [2024-11-13 23:47:01,717 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 233 transitions. Word has length 29 [2024-11-13 23:47:01,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:01,717 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 233 transitions. [2024-11-13 23:47:01,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-13 23:47:01,718 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 233 transitions. [2024-11-13 23:47:01,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 23:47:01,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:01,719 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:01,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 23:47:01,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:01,919 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:01,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:01,920 INFO L85 PathProgramCache]: Analyzing trace with hash -277876922, now seen corresponding path program 1 times [2024-11-13 23:47:01,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:01,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726224675] [2024-11-13 23:47:01,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:01,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:01,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:01,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726224675] [2024-11-13 23:47:01,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726224675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:47:01,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610067302] [2024-11-13 23:47:01,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:01,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:01,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:47:01,993 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:47:01,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 23:47:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:02,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:47:02,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:02,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:47:02,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610067302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:47:02,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:47:02,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-13 23:47:02,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182959978] [2024-11-13 23:47:02,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:47:02,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:47:02,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:02,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:47:02,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:47:02,180 INFO L87 Difference]: Start difference. First operand 190 states and 233 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-13 23:47:02,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:02,247 INFO L93 Difference]: Finished difference Result 230 states and 291 transitions. [2024-11-13 23:47:02,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:47:02,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2024-11-13 23:47:02,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:02,249 INFO L225 Difference]: With dead ends: 230 [2024-11-13 23:47:02,249 INFO L226 Difference]: Without dead ends: 228 [2024-11-13 23:47:02,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:47:02,250 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 26 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:02,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 47 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:47:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-13 23:47:02,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 187. [2024-11-13 23:47:02,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 176 states have (on average 1.2784090909090908) internal successors, (225), 186 states have internal predecessors, (225), 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) [2024-11-13 23:47:02,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2024-11-13 23:47:02,262 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 29 [2024-11-13 23:47:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:02,262 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2024-11-13 23:47:02,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-13 23:47:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2024-11-13 23:47:02,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 23:47:02,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:02,263 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-13 23:47:02,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-13 23:47:02,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:02,464 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:02,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:02,464 INFO L85 PathProgramCache]: Analyzing trace with hash -692045306, now seen corresponding path program 1 times [2024-11-13 23:47:02,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:02,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506880322] [2024-11-13 23:47:02,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:02,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:02,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:02,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506880322] [2024-11-13 23:47:02,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506880322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:47:02,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894088647] [2024-11-13 23:47:02,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:02,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:02,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:47:02,519 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:47:02,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 23:47:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:02,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:47:02,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:02,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:47:02,754 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:02,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894088647] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:47:02,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [775856349] [2024-11-13 23:47:02,755 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2024-11-13 23:47:02,755 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:47:02,756 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:47:02,756 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:47:02,756 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:47:03,099 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:47:03,733 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5240#(and (<= 2 |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483646) (<= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) 2147483647) (<= 1 |ULTIMATE.start_main_~b~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~b~0#1| 2147483646) (<= 2 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-13 23:47:03,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:47:03,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:47:03,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-13 23:47:03,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546593717] [2024-11-13 23:47:03,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:47:03,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 23:47:03,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:03,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 23:47:03,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-13 23:47:03,735 INFO L87 Difference]: Start difference. First operand 187 states and 225 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-13 23:47:03,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:03,888 INFO L93 Difference]: Finished difference Result 397 states and 494 transitions. [2024-11-13 23:47:03,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:47:03,889 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 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 29 [2024-11-13 23:47:03,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:03,890 INFO L225 Difference]: With dead ends: 397 [2024-11-13 23:47:03,890 INFO L226 Difference]: Without dead ends: 395 [2024-11-13 23:47:03,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 68 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-13 23:47:03,893 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 65 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:03,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 139 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:47:03,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-13 23:47:03,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 341. [2024-11-13 23:47:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 330 states have (on average 1.3242424242424242) internal successors, (437), 340 states have internal predecessors, (437), 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) [2024-11-13 23:47:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 437 transitions. [2024-11-13 23:47:03,913 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 437 transitions. Word has length 29 [2024-11-13 23:47:03,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:03,914 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 437 transitions. [2024-11-13 23:47:03,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-13 23:47:03,914 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 437 transitions. [2024-11-13 23:47:03,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 23:47:03,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:03,915 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-13 23:47:03,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-13 23:47:04,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:04,116 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:04,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:04,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1212716940, now seen corresponding path program 2 times [2024-11-13 23:47:04,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:04,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560821697] [2024-11-13 23:47:04,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:04,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:47:04,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851033991] [2024-11-13 23:47:04,125 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:47:04,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:04,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:47:04,127 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:47:04,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 23:47:04,170 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 23:47:04,170 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:47:04,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:47:04,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:07,323 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:47:07,323 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:47:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:47:16,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:16,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560821697] [2024-11-13 23:47:16,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:47:16,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851033991] [2024-11-13 23:47:16,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851033991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:47:16,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [200354466] [2024-11-13 23:47:16,731 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2024-11-13 23:47:16,731 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:47:16,731 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:47:16,731 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:47:16,731 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:47:17,121 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:47:30,028 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6228#(exists ((|v_ULTIMATE.start_main_~q~0#1_67| Int) (|v_ULTIMATE.start_main_~x~0#1_25| Int)) (and (<= |ULTIMATE.start_main_~a~0#1| 2147483647) (= |ULTIMATE.start_main_~p~0#1| 1) (<= |v_ULTIMATE.start_main_~x~0#1_25| 2147483647) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~r~0#1| 0) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= 1 |v_ULTIMATE.start_main_~x~0#1_25|) (<= (+ 2147483649 (* |v_ULTIMATE.start_main_~x~0#1_25| |v_ULTIMATE.start_main_~q~0#1_67|)) 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= |ULTIMATE.start_main_~s~0#1| 1)))' at error location [2024-11-13 23:47:30,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:47:30,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:47:30,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-13 23:47:30,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010269633] [2024-11-13 23:47:30,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:47:30,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 23:47:30,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:30,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 23:47:30,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=405, Unknown=7, NotChecked=0, Total=506 [2024-11-13 23:47:30,031 INFO L87 Difference]: Start difference. First operand 341 states and 437 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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) [2024-11-13 23:47:32,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 23:47:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:37,776 INFO L93 Difference]: Finished difference Result 390 states and 507 transitions. [2024-11-13 23:47:37,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 23:47:37,777 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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 31 [2024-11-13 23:47:37,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:37,779 INFO L225 Difference]: With dead ends: 390 [2024-11-13 23:47:37,779 INFO L226 Difference]: Without dead ends: 389 [2024-11-13 23:47:37,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 64 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=151, Invalid=653, Unknown=8, NotChecked=0, Total=812 [2024-11-13 23:47:37,780 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 113 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:37,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 65 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 23:47:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-13 23:47:37,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 341. [2024-11-13 23:47:37,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 330 states have (on average 1.3151515151515152) internal successors, (434), 340 states have internal predecessors, (434), 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) [2024-11-13 23:47:37,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 434 transitions. [2024-11-13 23:47:37,802 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 434 transitions. Word has length 31 [2024-11-13 23:47:37,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:37,803 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 434 transitions. [2024-11-13 23:47:37,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 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) [2024-11-13 23:47:37,803 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 434 transitions. [2024-11-13 23:47:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 23:47:37,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:37,803 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:37,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 23:47:38,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:38,004 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:38,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:38,005 INFO L85 PathProgramCache]: Analyzing trace with hash -109780272, now seen corresponding path program 1 times [2024-11-13 23:47:38,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:38,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558582979] [2024-11-13 23:47:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:38,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:47:38,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:38,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558582979] [2024-11-13 23:47:38,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558582979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:47:38,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:47:38,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:47:38,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497330128] [2024-11-13 23:47:38,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:47:38,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:47:38,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:38,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:47:38,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:47:38,068 INFO L87 Difference]: Start difference. First operand 341 states and 434 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-13 23:47:38,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:38,193 INFO L93 Difference]: Finished difference Result 345 states and 440 transitions. [2024-11-13 23:47:38,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:47:38,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 32 [2024-11-13 23:47:38,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:38,195 INFO L225 Difference]: With dead ends: 345 [2024-11-13 23:47:38,195 INFO L226 Difference]: Without dead ends: 344 [2024-11-13 23:47:38,195 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 [2024-11-13 23:47:38,196 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:38,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:47:38,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-13 23:47:38,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-13 23:47:38,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 333 states have (on average 1.3003003003003002) internal successors, (433), 343 states have internal predecessors, (433), 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) [2024-11-13 23:47:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 433 transitions. [2024-11-13 23:47:38,219 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 433 transitions. Word has length 32 [2024-11-13 23:47:38,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:38,219 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 433 transitions. [2024-11-13 23:47:38,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-13 23:47:38,219 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 433 transitions. [2024-11-13 23:47:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 23:47:38,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:38,220 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:38,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 23:47:38,220 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:38,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:38,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1829321904, now seen corresponding path program 2 times [2024-11-13 23:47:38,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:38,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963644083] [2024-11-13 23:47:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:38,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:47:38,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304272866] [2024-11-13 23:47:38,228 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:47:38,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:38,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:47:38,230 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:47:38,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 23:47:38,277 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 23:47:38,278 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:47:38,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 23:47:38,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:38,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:38,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:47:41,530 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 8 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:41,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:41,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963644083] [2024-11-13 23:47:41,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:47:41,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304272866] [2024-11-13 23:47:41,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304272866] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:47:41,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1227625415] [2024-11-13 23:47:41,532 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-13 23:47:41,532 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:47:41,533 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:47:41,533 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:47:41,533 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:47:44,354 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:47:47,865 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7963#(and (<= 0 (+ |ULTIMATE.start_main_~p~0#1| 2147483648)) (exists ((|v_ULTIMATE.start_main_~x~0#1_26| Int) (|v_ULTIMATE.start_main_~q~0#1_87| Int)) (and (<= |v_ULTIMATE.start_main_~x~0#1_26| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~x~0#1_26| |v_ULTIMATE.start_main_~q~0#1_87|)))) (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 2147483648)) (<= |ULTIMATE.start_main_~a~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= |ULTIMATE.start_main_~p~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648)))' at error location [2024-11-13 23:47:47,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:47:47,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:47:47,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2024-11-13 23:47:47,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230493725] [2024-11-13 23:47:47,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:47:47,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 23:47:47,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:47,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 23:47:47,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=673, Unknown=1, NotChecked=0, Total=812 [2024-11-13 23:47:47,866 INFO L87 Difference]: Start difference. First operand 344 states and 433 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 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) [2024-11-13 23:47:48,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:48,044 INFO L93 Difference]: Finished difference Result 386 states and 492 transitions. [2024-11-13 23:47:48,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:47:48,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 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 32 [2024-11-13 23:47:48,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:48,046 INFO L225 Difference]: With dead ends: 386 [2024-11-13 23:47:48,047 INFO L226 Difference]: Without dead ends: 385 [2024-11-13 23:47:48,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=156, Invalid=773, Unknown=1, NotChecked=0, Total=930 [2024-11-13 23:47:48,048 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 91 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:48,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 60 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:47:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-13 23:47:48,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 340. [2024-11-13 23:47:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 330 states have (on average 1.2818181818181817) internal successors, (423), 339 states have internal predecessors, (423), 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) [2024-11-13 23:47:48,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 423 transitions. [2024-11-13 23:47:48,080 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 423 transitions. Word has length 32 [2024-11-13 23:47:48,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:48,081 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 423 transitions. [2024-11-13 23:47:48,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 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) [2024-11-13 23:47:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 423 transitions. [2024-11-13 23:47:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:47:48,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:48,082 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:48,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-13 23:47:48,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:48,282 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:48,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash 891778908, now seen corresponding path program 1 times [2024-11-13 23:47:48,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:48,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336698584] [2024-11-13 23:47:48,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:48,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 23:47:48,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:48,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336698584] [2024-11-13 23:47:48,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336698584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:47:48,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:47:48,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:47:48,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594222732] [2024-11-13 23:47:48,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:47:48,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:47:48,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:48,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:47:48,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:47:48,317 INFO L87 Difference]: Start difference. First operand 340 states and 423 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-13 23:47:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:48,441 INFO L93 Difference]: Finished difference Result 347 states and 432 transitions. [2024-11-13 23:47:48,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:47:48,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 33 [2024-11-13 23:47:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:48,444 INFO L225 Difference]: With dead ends: 347 [2024-11-13 23:47:48,444 INFO L226 Difference]: Without dead ends: 346 [2024-11-13 23:47:48,444 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 [2024-11-13 23:47:48,444 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:48,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:47:48,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-13 23:47:48,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-11-13 23:47:48,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 336 states have (on average 1.2648809523809523) internal successors, (425), 345 states have internal predecessors, (425), 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) [2024-11-13 23:47:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 425 transitions. [2024-11-13 23:47:48,467 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 425 transitions. Word has length 33 [2024-11-13 23:47:48,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:48,467 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 425 transitions. [2024-11-13 23:47:48,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-13 23:47:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 425 transitions. [2024-11-13 23:47:48,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-13 23:47:48,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:48,468 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:48,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 23:47:48,468 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:48,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:48,469 INFO L85 PathProgramCache]: Analyzing trace with hash -874404132, now seen corresponding path program 2 times [2024-11-13 23:47:48,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:48,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582504345] [2024-11-13 23:47:48,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:48,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:47:48,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343461299] [2024-11-13 23:47:48,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:47:48,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:48,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:47:48,479 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:47:48,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 23:47:48,530 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 23:47:48,530 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:47:48,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 23:47:48,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:47:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:48,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:47:49,859 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:47:49,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:49,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582504345] [2024-11-13 23:47:49,859 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 23:47:49,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343461299] [2024-11-13 23:47:49,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343461299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:47:49,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1147760992] [2024-11-13 23:47:49,861 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-13 23:47:49,861 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:47:49,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:47:49,866 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:47:49,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:47:52,565 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:47:55,407 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9702#(and (<= 0 (+ |ULTIMATE.start_main_~p~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 2147483648)) (<= |ULTIMATE.start_main_~a~0#1| 2147483647) (<= (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 0 (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|) 2147483648)) (<= |ULTIMATE.start_main_~p~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~y~0#1_23| Int) (|v_ULTIMATE.start_main_~s~0#1_91| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_23|) (<= (+ 2147483649 (* |v_ULTIMATE.start_main_~s~0#1_91| |v_ULTIMATE.start_main_~y~0#1_23|)) 0))) (<= 0 (+ |ULTIMATE.start_main_~r~0#1| 2147483648)))' at error location [2024-11-13 23:47:55,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:47:55,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 23:47:55,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2024-11-13 23:47:55,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831226259] [2024-11-13 23:47:55,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 23:47:55,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 23:47:55,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:55,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 23:47:55,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=702, Unknown=1, NotChecked=0, Total=812 [2024-11-13 23:47:55,408 INFO L87 Difference]: Start difference. First operand 346 states and 425 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:47:55,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:55,795 INFO L93 Difference]: Finished difference Result 429 states and 537 transitions. [2024-11-13 23:47:55,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:47:55,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-13 23:47:55,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:55,797 INFO L225 Difference]: With dead ends: 429 [2024-11-13 23:47:55,798 INFO L226 Difference]: Without dead ends: 428 [2024-11-13 23:47:55,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=127, Invalid=802, Unknown=1, NotChecked=0, Total=930 [2024-11-13 23:47:55,799 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 48 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:55,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 114 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 23:47:55,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-13 23:47:55,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 339. [2024-11-13 23:47:55,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 330 states have (on average 1.2484848484848485) internal successors, (412), 338 states have internal predecessors, (412), 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) [2024-11-13 23:47:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 412 transitions. [2024-11-13 23:47:55,824 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 412 transitions. Word has length 33 [2024-11-13 23:47:55,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:55,825 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 412 transitions. [2024-11-13 23:47:55,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:47:55,825 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 412 transitions. [2024-11-13 23:47:55,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 23:47:55,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:55,826 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:55,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-13 23:47:56,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-13 23:47:56,030 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:56,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:56,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1875342418, now seen corresponding path program 1 times [2024-11-13 23:47:56,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:56,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852077247] [2024-11-13 23:47:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:56,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:47:56,122 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:47:56,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:47:56,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852077247] [2024-11-13 23:47:56,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852077247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:47:56,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:47:56,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:47:56,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862901811] [2024-11-13 23:47:56,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:47:56,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:47:56,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:47:56,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:47:56,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:47:56,125 INFO L87 Difference]: Start difference. First operand 339 states and 412 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-13 23:47:56,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:47:56,292 INFO L93 Difference]: Finished difference Result 349 states and 424 transitions. [2024-11-13 23:47:56,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:47:56,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 34 [2024-11-13 23:47:56,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:47:56,294 INFO L225 Difference]: With dead ends: 349 [2024-11-13 23:47:56,294 INFO L226 Difference]: Without dead ends: 348 [2024-11-13 23:47:56,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:47:56,295 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:47:56,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 25 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:47:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-13 23:47:56,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-13 23:47:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 339 states have (on average 1.2300884955752212) internal successors, (417), 347 states have internal predecessors, (417), 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) [2024-11-13 23:47:56,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 417 transitions. [2024-11-13 23:47:56,321 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 417 transitions. Word has length 34 [2024-11-13 23:47:56,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:47:56,321 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 417 transitions. [2024-11-13 23:47:56,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-13 23:47:56,321 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 417 transitions. [2024-11-13 23:47:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 23:47:56,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:47:56,322 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:56,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 23:47:56,322 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 23:47:56,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:47:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1336724270, now seen corresponding path program 2 times [2024-11-13 23:47:56,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:47:56,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264583496] [2024-11-13 23:47:56,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:47:56,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:47:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:47:56,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176240887] [2024-11-13 23:47:56,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:47:56,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:47:56,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:47:56,340 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:47:56,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 23:47:56,392 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 23:47:56,392 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-13 23:47:56,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:47:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:47:56,439 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:47:56,443 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:47:56,445 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-13 23:47:56,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-13 23:47:56,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-13 23:47:56,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-13 23:47:56,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-13 23:47:56,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-13 23:47:56,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-13 23:47:56,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-13 23:47:56,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-13 23:47:56,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-13 23:47:56,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-13 23:47:56,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-13 23:47:56,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-13 23:47:56,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-13 23:47:56,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-13 23:47:56,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-13 23:47:56,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-13 23:47:56,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-13 23:47:56,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-13 23:47:56,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-13 23:47:56,660 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:47:56,707 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:47:56,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:47:56 BoogieIcfgContainer [2024-11-13 23:47:56,713 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:47:56,714 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:47:56,714 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:47:56,714 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:47:56,715 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:46:43" (3/4) ... [2024-11-13 23:47:56,716 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 23:47:56,781 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-13 23:47:56,781 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:47:56,782 INFO L158 Benchmark]: Toolchain (without parser) took 74416.44ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 117.8MB in the beginning and 509.8MB in the end (delta: -392.1MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2024-11-13 23:47:56,783 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:47:56,783 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.02ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 107.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:47:56,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:47:56,783 INFO L158 Benchmark]: Boogie Preprocessor took 26.59ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.8MB in the end (delta: 600.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:47:56,784 INFO L158 Benchmark]: RCFGBuilder took 495.86ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 93.4MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:47:56,785 INFO L158 Benchmark]: TraceAbstraction took 73509.36ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 92.7MB in the beginning and 512.7MB in the end (delta: -420.0MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-11-13 23:47:56,785 INFO L158 Benchmark]: Witness Printer took 67.82ms. Allocated memory is still 570.4MB. Free memory was 512.7MB in the beginning and 509.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:47:56,787 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.02ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 107.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.59ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.8MB in the end (delta: 600.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 495.86ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 93.4MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 73509.36ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 92.7MB in the beginning and 512.7MB in the end (delta: -420.0MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 67.82ms. Allocated memory is still 570.4MB. Free memory was 512.7MB in the beginning and 509.8MB in the end (delta: 2.9MB). There was no memory consumed. 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 - CounterExampleResult [Line: 33]: integer overflow possible integer overflow possible We found a FailurePath: [L19] int a, b, p, q, r, s; [L20] int x, y; [L21] x = __VERIFIER_nondet_int() [L22] y = __VERIFIER_nondet_int() [L25] COND TRUE x>=1 && y>=1 [L26] a = x [L27] b = y [L28] p = 1 [L29] q = 0 [L30] r = 0 [L31] s = 1 VAL [a=1073741827, b=1073741825, p=1, q=0, r=0, s=1, x=1073741827, y=1073741825] [L33] EXPR x * q VAL [a=1073741827, b=1073741825, p=1, q=0, r=0, s=1, x=1073741827, y=1073741825] [L33] EXPR y * s VAL [a=1073741827, b=1073741825, p=1, q=0, r=0, s=1, x=1073741827, y=1073741825] [L33] EXPR x * q + y * s VAL [a=1073741827, b=1073741825, p=1, q=0, r=0, s=1, x=1073741827, y=1073741825] [L33] COND TRUE b == x * q + y * s VAL [a=1073741827, b=1073741825, p=1, q=0, r=0, s=1, x=1073741827, y=1073741825] [L38] COND TRUE a > b VAL [a=1073741827, b=1073741825, p=1, q=0, r=0, s=1, x=1073741827, y=1073741825] [L39] EXPR a - b [L39] a = a - b VAL [a=2, b=1073741825, p=1, q=0, r=0, s=1, x=1073741827, y=1073741825] [L40] EXPR p - q [L40] p = p - q VAL [a=2, b=1073741825, p=1, q=0, r=0, s=1, x=1073741827, y=1073741825] [L41] EXPR r - s [L41] r = r - s VAL [a=2, b=1073741825, p=1, q=0, r=-1, s=1, x=1073741827, y=1073741825] [L33] EXPR x * q VAL [a=2, b=1073741825, p=1, q=0, r=-1, s=1, x=1073741827, y=1073741825] [L33] EXPR y * s VAL [a=2, b=1073741825, p=1, q=0, r=-1, s=1, x=1073741827, y=1073741825] [L33] EXPR x * q + y * s VAL [a=2, b=1073741825, p=1, q=0, r=-1, s=1, x=1073741827, y=1073741825] [L33] COND TRUE b == x * q + y * s VAL [a=2, b=1073741825, p=1, q=0, r=-1, s=1, x=1073741827, y=1073741825] [L38] COND FALSE !(a > b) VAL [a=2, b=1073741825, p=1, q=0, r=-1, s=1, x=1073741827, y=1073741825] [L43] EXPR b - a [L43] b = b - a VAL [a=2, b=1073741823, p=1, q=0, r=-1, s=1, x=1073741827, y=1073741825] [L44] EXPR q - p [L44] q = q - p VAL [a=2, b=1073741823, p=1, q=-1, r=-1, s=1, x=1073741827, y=1073741825] [L45] EXPR s - r [L45] s = s - r VAL [a=2, b=1073741823, p=1, q=-1, r=-1, s=2, x=1073741827, y=1073741825] [L33] x * q VAL [a=2, b=1073741823, p=1, q=-1, r=-1, s=2, x=1073741827, y=1073741825] [L33] y * s VAL [a=2, b=1073741823, p=1, q=-1, r=-1, x=1073741827] - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 73.4s, OverallIterations: 29, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 1169 SdHoareTripleChecker+Valid, 7.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1169 mSDsluCounter, 1523 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 799 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1712 IncrementalHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 724 mSDtfsCounter, 1712 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 777 GetRequests, 541 SyntacticMatches, 25 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1299 ImplicationChecksByTransitivity, 44.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=28, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 28 MinimizatonAttempts, 429 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.2s InterpolantComputationTime, 977 NumberOfCodeBlocks, 963 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 895 ConstructedInterpolants, 113 QuantifiedInterpolants, 7058 SizeOfPredicates, 17 NumberOfNonLiveVariables, 767 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 42 InterpolantComputations, 21 PerfectInterpolantSequences, 112/279 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: OVERALL_TIME: 0.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 17, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 71, TOOLS_POST_TIME: 0.6s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 71, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 96, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 17, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 445, DAG_COMPRESSION_RETAINED_NODES: 66, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-13 23:47:56,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18762d7-5522-4341-8bf6-32b03eb93539/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)