./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/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_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:01:41,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:01:41,539 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 05:01:41,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:01:41,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:01:41,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:01:41,585 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:01:41,585 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:01:41,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:01:41,586 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:01:41,587 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:01:41,587 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:01:41,587 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:01:41,587 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:01:41,587 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:01:41,587 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:01:41,588 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:01:41,589 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:01:41,589 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:01:41,589 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:01:41,589 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:01:41,589 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:01:41,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:01:41,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:01:41,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:01:41,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:01:41,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:01:41,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:01:41,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:01:41,590 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:01:41,591 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:01:41,591 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:01:41,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:01:41,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:01:41,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:01:41,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:01:41,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:01:41,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:01:41,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:01:41,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:01:41,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:01:41,593 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:01:41,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:01:41,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:01:41,594 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:01:41,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:01:41,594 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_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 [2024-11-14 05:01:41,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:01:41,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:01:41,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:01:41,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:01:41,965 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:01:41,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-restricted-15/Ex08.c Unable to find full path for "g++" [2024-11-14 05:01:43,996 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:01:44,337 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:01:44,337 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/sv-benchmarks/c/termination-restricted-15/Ex08.c [2024-11-14 05:01:44,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/data/6509a5f6b/2c466fa0d8a04adcb78897f11f016ae8/FLAGb64a1055c [2024-11-14 05:01:44,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/data/6509a5f6b/2c466fa0d8a04adcb78897f11f016ae8 [2024-11-14 05:01:44,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:01:44,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:01:44,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:01:44,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:01:44,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:01:44,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a40c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44, skipping insertion in model container [2024-11-14 05:01:44,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,389 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:01:44,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:01:44,542 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:01:44,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:01:44,568 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:01:44,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44 WrapperNode [2024-11-14 05:01:44,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:01:44,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:01:44,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:01:44,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:01:44,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,596 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-11-14 05:01:44,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:01:44,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:01:44,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:01:44,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:01:44,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,605 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,614 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,619 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:01:44,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:01:44,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:01:44,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:01:44,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (1/1) ... [2024-11-14 05:01:44,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:01:44,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:44,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:01:44,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:01:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:01:44,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:01:44,788 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:01:44,790 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:01:44,886 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-14 05:01:44,886 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:01:44,923 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:01:44,924 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:01:44,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:01:44 BoogieIcfgContainer [2024-11-14 05:01:44,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:01:44,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:01:44,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:01:44,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:01:44,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:01:44" (1/3) ... [2024-11-14 05:01:44,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30960804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:01:44, skipping insertion in model container [2024-11-14 05:01:44,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:01:44" (2/3) ... [2024-11-14 05:01:44,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30960804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:01:44, skipping insertion in model container [2024-11-14 05:01:44,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:01:44" (3/3) ... [2024-11-14 05:01:44,936 INFO L112 eAbstractionObserver]: Analyzing ICFG Ex08.c [2024-11-14 05:01:44,953 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:01:44,954 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Ex08.c that has 1 procedures, 12 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-14 05:01:45,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:01:45,036 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;@3c5a7f59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:01:45,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-14 05:01:45,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 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) [2024-11-14 05:01:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:01:45,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:45,047 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:01:45,048 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:01:45,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:45,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2314889, now seen corresponding path program 1 times [2024-11-14 05:01:45,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:45,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782517322] [2024-11-14 05:01:45,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:45,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:45,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:45,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:45,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782517322] [2024-11-14 05:01:45,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782517322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:45,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:45,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:01:45,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744770074] [2024-11-14 05:01:45,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:45,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:01:45,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:45,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:01:45,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:01:45,326 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:45,373 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2024-11-14 05:01:45,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:01:45,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 05:01:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:45,382 INFO L225 Difference]: With dead ends: 13 [2024-11-14 05:01:45,382 INFO L226 Difference]: Without dead ends: 11 [2024-11-14 05:01:45,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:01:45,388 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:45,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:01:45,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-14 05:01:45,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-11-14 05:01:45,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 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) [2024-11-14 05:01:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2024-11-14 05:01:45,423 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2024-11-14 05:01:45,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:45,424 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2024-11-14 05:01:45,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,426 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-11-14 05:01:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:01:45,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:45,427 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:01:45,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:01:45,428 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:01:45,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:45,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2315081, now seen corresponding path program 1 times [2024-11-14 05:01:45,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:45,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921524991] [2024-11-14 05:01:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:45,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:45,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:45,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921524991] [2024-11-14 05:01:45,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921524991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:45,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:45,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:01:45,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609992414] [2024-11-14 05:01:45,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:45,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:01:45,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:45,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:01:45,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:01:45,470 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:45,498 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2024-11-14 05:01:45,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:01:45,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 05:01:45,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:45,500 INFO L225 Difference]: With dead ends: 11 [2024-11-14 05:01:45,500 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 05:01:45,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:01:45,501 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:45,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:01:45,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 05:01:45,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 05:01:45,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-11-14 05:01:45,507 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2024-11-14 05:01:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:45,508 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-11-14 05:01:45,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-11-14 05:01:45,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:01:45,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:45,510 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 05:01:45,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:01:45,512 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:01:45,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:45,513 INFO L85 PathProgramCache]: Analyzing trace with hash 71761618, now seen corresponding path program 1 times [2024-11-14 05:01:45,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:45,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979749649] [2024-11-14 05:01:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:45,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:45,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:45,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:45,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979749649] [2024-11-14 05:01:45,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979749649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:45,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:45,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:01:45,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128643796] [2024-11-14 05:01:45,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:45,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:01:45,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:45,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:01:45,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:01:45,704 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:45,761 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2024-11-14 05:01:45,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:01:45,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 05:01:45,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:45,762 INFO L225 Difference]: With dead ends: 18 [2024-11-14 05:01:45,762 INFO L226 Difference]: Without dead ends: 17 [2024-11-14 05:01:45,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:01:45,764 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:45,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:01:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-14 05:01:45,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2024-11-14 05:01:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2024-11-14 05:01:45,772 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 5 [2024-11-14 05:01:45,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:45,773 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-14 05:01:45,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,773 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-11-14 05:01:45,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:01:45,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:45,777 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 05:01:45,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:01:45,778 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:01:45,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:45,778 INFO L85 PathProgramCache]: Analyzing trace with hash 71767576, now seen corresponding path program 1 times [2024-11-14 05:01:45,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:45,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935843466] [2024-11-14 05:01:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:45,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:45,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:45,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:45,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935843466] [2024-11-14 05:01:45,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935843466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:45,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:01:45,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:01:45,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061228563] [2024-11-14 05:01:45,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:45,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:01:45,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:45,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:01:45,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:01:45,843 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:45,866 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2024-11-14 05:01:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:01:45,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 05:01:45,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:45,867 INFO L225 Difference]: With dead ends: 15 [2024-11-14 05:01:45,867 INFO L226 Difference]: Without dead ends: 14 [2024-11-14 05:01:45,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:01:45,869 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:45,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:01:45,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-14 05:01:45,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-14 05:01:45,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-11-14 05:01:45,879 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2024-11-14 05:01:45,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:45,880 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-11-14 05:01:45,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-14 05:01:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 05:01:45,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:45,880 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-14 05:01:45,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:01:45,881 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:01:45,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:45,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2018337241, now seen corresponding path program 1 times [2024-11-14 05:01:45,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:45,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487400675] [2024-11-14 05:01:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:45,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:46,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:46,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:46,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487400675] [2024-11-14 05:01:46,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487400675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:01:46,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663187888] [2024-11-14 05:01:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:46,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:46,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:46,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:01:46,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:01:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:46,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:01:46,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:46,401 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:01:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:46,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663187888] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:01:46,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1252722305] [2024-11-14 05:01:46,507 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-14 05:01:46,507 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:01:46,513 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:01:46,518 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:01:46,519 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:01:46,725 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:01:46,809 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '211#(= |ULTIMATE.start_main_~up~0#1| 1)' at error location [2024-11-14 05:01:46,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:01:46,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:01:46,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-14 05:01:46,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222051259] [2024-11-14 05:01:46,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:01:46,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:01:46,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:46,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:01:46,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-14 05:01:46,812 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:47,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:47,024 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2024-11-14 05:01:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 05:01:47,025 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-14 05:01:47,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:47,025 INFO L225 Difference]: With dead ends: 49 [2024-11-14 05:01:47,025 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 05:01:47,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2024-11-14 05:01:47,027 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 28 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:47,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 10 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:01:47,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 05:01:47,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2024-11-14 05:01:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:47,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2024-11-14 05:01:47,033 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 9 [2024-11-14 05:01:47,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:47,033 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2024-11-14 05:01:47,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:47,034 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-11-14 05:01:47,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 05:01:47,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:47,035 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-14 05:01:47,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:01:47,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:47,239 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:01:47,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:47,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1270769134, now seen corresponding path program 2 times [2024-11-14 05:01:47,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:47,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559667801] [2024-11-14 05:01:47,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:47,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:47,620 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:47,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:47,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559667801] [2024-11-14 05:01:47,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559667801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:01:47,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226052638] [2024-11-14 05:01:47,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:01:47,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:47,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:47,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:01:47,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:01:47,688 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 05:01:47,689 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:01:47,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:01:47,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:47,847 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:47,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:01:48,040 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:48,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226052638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:01:48,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [209643515] [2024-11-14 05:01:48,043 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-14 05:01:48,045 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:01:48,046 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:01:48,046 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:01:48,046 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:01:48,147 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:01:48,246 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '460#(= |ULTIMATE.start_main_~up~0#1| 1)' at error location [2024-11-14 05:01:48,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:01:48,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:01:48,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2024-11-14 05:01:48,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836505276] [2024-11-14 05:01:48,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:01:48,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 05:01:48,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:48,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 05:01:48,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2024-11-14 05:01:48,250 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 19 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:48,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:48,839 INFO L93 Difference]: Finished difference Result 119 states and 150 transitions. [2024-11-14 05:01:48,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-14 05:01:48,840 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 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 21 [2024-11-14 05:01:48,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:48,842 INFO L225 Difference]: With dead ends: 119 [2024-11-14 05:01:48,842 INFO L226 Difference]: Without dead ends: 92 [2024-11-14 05:01:48,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=451, Invalid=1271, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 05:01:48,844 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 65 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:48,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 22 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:01:48,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-14 05:01:48,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 64. [2024-11-14 05:01:48,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 63 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:48,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2024-11-14 05:01:48,862 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 21 [2024-11-14 05:01:48,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:48,862 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2024-11-14 05:01:48,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2024-11-14 05:01:48,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 05:01:48,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:48,864 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 1, 1] [2024-11-14 05:01:48,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:01:49,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:01:49,065 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:01:49,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:49,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2077997160, now seen corresponding path program 3 times [2024-11-14 05:01:49,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:49,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587448345] [2024-11-14 05:01:49,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:49,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:49,513 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:49,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:49,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587448345] [2024-11-14 05:01:49,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587448345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:01:49,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301586301] [2024-11-14 05:01:49,514 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:01:49,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:49,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:49,516 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:01:49,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:01:49,587 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:01:49,587 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:01:49,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:01:49,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:49,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:01:50,220 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:50,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301586301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:01:50,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2142647950] [2024-11-14 05:01:50,224 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-14 05:01:50,224 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:01:50,224 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:01:50,225 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:01:50,225 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:01:50,297 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:01:50,401 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1022#(= |ULTIMATE.start_main_~up~0#1| 1)' at error location [2024-11-14 05:01:50,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:01:50,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:01:50,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 29 [2024-11-14 05:01:50,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216216093] [2024-11-14 05:01:50,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:01:50,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-14 05:01:50,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:50,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-14 05:01:50,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=842, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 05:01:50,405 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 31 states, 30 states have (on average 3.1666666666666665) internal successors, (95), 30 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:51,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:51,570 INFO L93 Difference]: Finished difference Result 799 states and 990 transitions. [2024-11-14 05:01:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-14 05:01:51,570 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.1666666666666665) internal successors, (95), 30 states have internal predecessors, (95), 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 45 [2024-11-14 05:01:51,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:51,575 INFO L225 Difference]: With dead ends: 799 [2024-11-14 05:01:51,575 INFO L226 Difference]: Without dead ends: 736 [2024-11-14 05:01:51,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1264 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1356, Invalid=3200, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 05:01:51,579 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 173 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:51,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 45 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:01:51,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-14 05:01:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 436. [2024-11-14 05:01:51,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 1.2252873563218392) internal successors, (533), 435 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 533 transitions. [2024-11-14 05:01:51,647 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 533 transitions. Word has length 45 [2024-11-14 05:01:51,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:51,648 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 533 transitions. [2024-11-14 05:01:51,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.1666666666666665) internal successors, (95), 30 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:51,648 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 533 transitions. [2024-11-14 05:01:51,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 05:01:51,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:51,652 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 1, 1] [2024-11-14 05:01:51,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:01:51,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 05:01:51,857 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:01:51,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:51,857 INFO L85 PathProgramCache]: Analyzing trace with hash -177573652, now seen corresponding path program 4 times [2024-11-14 05:01:51,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:51,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788180486] [2024-11-14 05:01:51,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:51,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 1012 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:52,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:52,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788180486] [2024-11-14 05:01:52,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788180486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:01:52,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427103327] [2024-11-14 05:01:52,953 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:01:52,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:52,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:52,958 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:01:52,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:01:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:53,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 05:01:53,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:53,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 1012 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:53,346 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:01:54,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 1012 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:01:54,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427103327] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:01:54,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2024455127] [2024-11-14 05:01:54,577 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-14 05:01:54,577 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:01:54,577 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:01:54,578 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:01:54,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:01:54,630 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:01:54,747 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3233#(= |ULTIMATE.start_main_~up~0#1| 1)' at error location [2024-11-14 05:01:54,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:01:54,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:01:54,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 53 [2024-11-14 05:01:54,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813536587] [2024-11-14 05:01:54,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:01:54,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-14 05:01:54,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:54,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-14 05:01:54,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1236, Invalid=2186, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 05:01:54,753 INFO L87 Difference]: Start difference. First operand 436 states and 533 transitions. Second operand has 55 states, 54 states have (on average 3.537037037037037) internal successors, (191), 54 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:57,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:57,936 INFO L93 Difference]: Finished difference Result 2095 states and 2605 transitions. [2024-11-14 05:01:57,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2024-11-14 05:01:57,936 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 3.537037037037037) internal successors, (191), 54 states have internal predecessors, (191), 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 93 [2024-11-14 05:01:57,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:57,944 INFO L225 Difference]: With dead ends: 2095 [2024-11-14 05:01:57,945 INFO L226 Difference]: Without dead ends: 2028 [2024-11-14 05:01:57,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4414 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5406, Invalid=10850, Unknown=0, NotChecked=0, Total=16256 [2024-11-14 05:01:57,953 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 451 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:57,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 92 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:01:57,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2024-11-14 05:01:58,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 964. [2024-11-14 05:01:58,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 963 states have (on average 1.2263759086188992) internal successors, (1181), 963 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:58,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1181 transitions. [2024-11-14 05:01:58,075 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1181 transitions. Word has length 93 [2024-11-14 05:01:58,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:58,076 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1181 transitions. [2024-11-14 05:01:58,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 3.537037037037037) internal successors, (191), 54 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:01:58,076 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1181 transitions. [2024-11-14 05:01:58,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-14 05:01:58,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:58,086 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 1, 1] [2024-11-14 05:01:58,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:01:58,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:58,290 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:01:58,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:58,290 INFO L85 PathProgramCache]: Analyzing trace with hash 238574484, now seen corresponding path program 5 times [2024-11-14 05:01:58,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:58,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318980209] [2024-11-14 05:01:58,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:58,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:01,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 4324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:02:01,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:02:01,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318980209] [2024-11-14 05:02:01,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318980209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:02:01,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181437508] [2024-11-14 05:02:01,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:02:01,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:01,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:02:01,310 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:02:01,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:02:01,476 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 39 check-sat command(s) [2024-11-14 05:02:01,476 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:02:01,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-14 05:02:01,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:02:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 1424 proven. 162 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2024-11-14 05:02:01,811 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:02:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 1255 proven. 956 refuted. 0 times theorem prover too weak. 2113 trivial. 0 not checked. [2024-11-14 05:02:02,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181437508] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:02:02,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [57198429] [2024-11-14 05:02:02,317 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-14 05:02:02,317 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:02:02,317 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:02:02,317 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:02:02,317 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:02:02,356 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:02:02,529 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8381#(= |ULTIMATE.start_main_~up~0#1| 1)' at error location [2024-11-14 05:02:02,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:02:02,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:02:02,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 13, 18] total 69 [2024-11-14 05:02:02,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893682404] [2024-11-14 05:02:02,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:02:02,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-11-14 05:02:02,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:02:02,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-11-14 05:02:02,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1991, Invalid=3411, Unknown=0, NotChecked=0, Total=5402 [2024-11-14 05:02:02,534 INFO L87 Difference]: Start difference. First operand 964 states and 1181 transitions. Second operand has 70 states, 70 states have (on average 3.6714285714285713) internal successors, (257), 69 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:02:03,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:02:03,506 INFO L93 Difference]: Finished difference Result 1067 states and 1308 transitions. [2024-11-14 05:02:03,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-14 05:02:03,507 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 3.6714285714285713) internal successors, (257), 69 states have internal predecessors, (257), 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 189 [2024-11-14 05:02:03,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:02:03,508 INFO L225 Difference]: With dead ends: 1067 [2024-11-14 05:02:03,508 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:02:03,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2026 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3153, Invalid=5777, Unknown=0, NotChecked=0, Total=8930 [2024-11-14 05:02:03,519 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 86 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:02:03,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 130 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:02:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:02:03,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:02:03,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:02:03,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:02:03,523 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2024-11-14 05:02:03,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:02:03,523 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:02:03,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 3.6714285714285713) internal successors, (257), 69 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:02:03,524 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:02:03,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:02:03,529 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-14 05:02:03,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-14 05:02:03,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-14 05:02:03,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-14 05:02:03,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:02:03,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 05:02:03,733 INFO L407 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1] [2024-11-14 05:02:03,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:02:03,973 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:02:03,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:02:03 BoogieIcfgContainer [2024-11-14 05:02:03,990 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:02:03,991 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:02:03,991 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:02:03,991 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:02:03,992 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:01:44" (3/4) ... [2024-11-14 05:02:03,994 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:02:04,002 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-14 05:02:04,002 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 05:02:04,002 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-14 05:02:04,089 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:02:04,090 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:02:04,090 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:02:04,091 INFO L158 Benchmark]: Toolchain (without parser) took 19725.73ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 93.0MB in the beginning and 196.3MB in the end (delta: -103.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-14 05:02:04,091 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:02:04,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.72ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:02:04,092 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.56ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.8MB in the end (delta: 986.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:02:04,093 INFO L158 Benchmark]: Boogie Preprocessor took 21.91ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 81.2MB in the end (delta: 597.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:02:04,093 INFO L158 Benchmark]: RCFGBuilder took 304.67ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 71.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:02:04,094 INFO L158 Benchmark]: TraceAbstraction took 19062.58ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 70.7MB in the beginning and 201.5MB in the end (delta: -130.8MB). Peak memory consumption was 136.8MB. Max. memory is 16.1GB. [2024-11-14 05:02:04,094 INFO L158 Benchmark]: Witness Printer took 99.29ms. Allocated memory is still 268.4MB. Free memory was 201.5MB in the beginning and 196.3MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:02:04,096 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.72ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.56ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.8MB in the end (delta: 986.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.91ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 81.2MB in the end (delta: 597.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.67ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 71.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19062.58ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 70.7MB in the beginning and 201.5MB in the end (delta: -130.8MB). Peak memory consumption was 136.8MB. Max. memory is 16.1GB. * Witness Printer took 99.29ms. Allocated memory is still 268.4MB. Free memory was 201.5MB in the beginning and 196.3MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 9, TraceHistogramMax: 47, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 813 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 813 mSDsluCounter, 306 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 271 mSDsCounter, 486 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1967 IncrementalHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 486 mSolverCounterUnsat, 35 mSDtfsCounter, 1967 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1317 GetRequests, 964 SyntacticMatches, 1 SemanticMatches, 352 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8262 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=964occurred in iteration=8, InterpolantAutomatonStates: 280, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1410 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 732 NumberOfCodeBlocks, 700 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 1070 ConstructedInterpolants, 0 QuantifiedInterpolants, 2850 SizeOfPredicates, 17 NumberOfNonLiveVariables, 740 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 19 InterpolantComputations, 4 PerfectInterpolantSequences, 7530/16800 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((((((((i <= 2147483647) && (up == 0)) || (i == 4)) || (9 == i)) || (3 == i)) || (5 == i)) || (2 == i)) || (i == 8)) || (7 == i)) || (i == 10)) || ((i == 1) && (up != 1))) || (6 == i)) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:02:04,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9168e90-b727-4c74-8813-84526d0b7954/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE