./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/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_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:45:56,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:45:56,263 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:45:56,269 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:45:56,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:45:56,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:45:56,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:45:56,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:45:56,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:45:56,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:45:56,303 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:45:56,303 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:45:56,304 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:45:56,304 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:45:56,304 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:45:56,304 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:45:56,304 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:45:56,306 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:45:56,306 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:45:56,306 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:45:56,306 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:45:56,306 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:45:56,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:45:56,307 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:45:56,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:45:56,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:45:56,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:45:56,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:45:56,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:45:56,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:45:56,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:45:56,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:45:56,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:45:56,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:45:56,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:45:56,310 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:45:56,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:45:56,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:45:56,311 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:45:56,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:45:56,311 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_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a9444e5380fed44b00432b26b7edd9414dfa93ba2d2f76306ea753732eae2b3 [2024-11-14 05:45:56,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:45:56,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:45:56,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:45:56,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:45:56,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:45:56,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i Unable to find full path for "g++" [2024-11-14 05:45:58,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:45:59,133 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:45:59,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2024-11-14 05:45:59,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/data/86042be1a/7566eb068bb34cfe99fee2675019a525/FLAG8b88bbb0a [2024-11-14 05:45:59,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/data/86042be1a/7566eb068bb34cfe99fee2675019a525 [2024-11-14 05:45:59,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:45:59,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:45:59,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:45:59,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:45:59,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:45:59,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fe8933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59, skipping insertion in model container [2024-11-14 05:45:59,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,250 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:45:59,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:45:59,471 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:45:59,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:45:59,505 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:45:59,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59 WrapperNode [2024-11-14 05:45:59,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:45:59,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:45:59,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:45:59,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:45:59,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,547 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 38 [2024-11-14 05:45:59,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:45:59,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:45:59,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:45:59,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:45:59,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,570 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:45:59,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:45:59,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:45:59,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:45:59,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (1/1) ... [2024-11-14 05:45:59,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:45:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:45:59,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:45:59,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:45:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:45:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:45:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:45:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:45:59,750 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:45:59,752 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:45:59,932 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-14 05:45:59,932 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:46:00,002 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:46:00,003 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:46:00,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:46:00 BoogieIcfgContainer [2024-11-14 05:46:00,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:46:00,009 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:46:00,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:46:00,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:46:00,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:45:59" (1/3) ... [2024-11-14 05:46:00,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41785504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:46:00, skipping insertion in model container [2024-11-14 05:46:00,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:59" (2/3) ... [2024-11-14 05:46:00,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41785504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:46:00, skipping insertion in model container [2024-11-14 05:46:00,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:46:00" (3/3) ... [2024-11-14 05:46:00,020 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark10_conjunctive.i [2024-11-14 05:46:00,039 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:46:00,041 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG benchmark10_conjunctive.i that has 1 procedures, 15 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-14 05:46:00,118 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:46:00,137 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;@4c4860d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:46:00,138 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-14 05:46:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:46:00,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:00,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:46:00,156 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 05:46:00,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:00,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2420279, now seen corresponding path program 1 times [2024-11-14 05:46:00,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:00,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763068931] [2024-11-14 05:46:00,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:00,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:00,402 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 05:46:00,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:00,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763068931] [2024-11-14 05:46:00,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763068931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:46:00,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:46:00,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:46:00,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857836395] [2024-11-14 05:46:00,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:46:00,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:46:00,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:00,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:46:00,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:46:00,453 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 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 05:46:00,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:00,530 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2024-11-14 05:46:00,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:46:00,534 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 05:46:00,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:00,540 INFO L225 Difference]: With dead ends: 19 [2024-11-14 05:46:00,541 INFO L226 Difference]: Without dead ends: 15 [2024-11-14 05:46:00,543 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 05:46:00,547 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:00,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 9 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:46:00,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-14 05:46:00,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-11-14 05:46:00,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 05:46:00,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-11-14 05:46:00,586 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2024-11-14 05:46:00,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:00,586 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-11-14 05:46:00,587 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 05:46:00,587 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-11-14 05:46:00,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:46:00,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:00,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 05:46:00,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:46:00,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:46:00,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:00,589 INFO L85 PathProgramCache]: Analyzing trace with hash 75028698, now seen corresponding path program 1 times [2024-11-14 05:46:00,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:00,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440804463] [2024-11-14 05:46:00,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:00,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:00,647 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 05:46:00,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:00,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440804463] [2024-11-14 05:46:00,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440804463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:46:00,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:46:00,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:46:00,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594571313] [2024-11-14 05:46:00,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:46:00,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:46:00,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:00,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:46:00,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:46:00,650 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:00,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:00,688 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-11-14 05:46:00,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:46:00,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 05:46:00,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:00,690 INFO L225 Difference]: With dead ends: 16 [2024-11-14 05:46:00,690 INFO L226 Difference]: Without dead ends: 15 [2024-11-14 05:46:00,690 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 05:46:00,691 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:00,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:46:00,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-14 05:46:00,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-14 05:46:00,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:00,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-14 05:46:00,696 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2024-11-14 05:46:00,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:00,696 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-14 05:46:00,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:00,696 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-14 05:46:00,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 05:46:00,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:00,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 05:46:00,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:46:00,697 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:46:00,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:00,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1969077607, now seen corresponding path program 1 times [2024-11-14 05:46:00,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:00,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256470689] [2024-11-14 05:46:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:00,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:00,784 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 05:46:00,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:00,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256470689] [2024-11-14 05:46:00,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256470689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:46:00,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:46:00,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:46:00,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175186218] [2024-11-14 05:46:00,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:46:00,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:46:00,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:00,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:46:00,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:46:00,787 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:00,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:00,842 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-14 05:46:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:46:00,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 05:46:00,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:00,844 INFO L225 Difference]: With dead ends: 15 [2024-11-14 05:46:00,844 INFO L226 Difference]: Without dead ends: 14 [2024-11-14 05:46:00,845 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 05:46:00,846 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:00,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:46:00,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-14 05:46:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-14 05:46:00,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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 05:46:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-11-14 05:46:00,852 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2024-11-14 05:46:00,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:00,853 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-11-14 05:46:00,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:00,853 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-11-14 05:46:00,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:46:00,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:00,854 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:46:00,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:46:00,854 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 05:46:00,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:00,855 INFO L85 PathProgramCache]: Analyzing trace with hash -911863620, now seen corresponding path program 1 times [2024-11-14 05:46:00,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:00,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437232145] [2024-11-14 05:46:00,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:00,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:00,922 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 05:46:00,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:00,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437232145] [2024-11-14 05:46:00,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437232145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:46:00,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:46:00,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:46:00,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428258389] [2024-11-14 05:46:00,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:46:00,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:46:00,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:00,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:46:00,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:46:00,924 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:00,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:00,973 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-11-14 05:46:00,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:46:00,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 05:46:00,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:00,977 INFO L225 Difference]: With dead ends: 17 [2024-11-14 05:46:00,977 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 05:46:00,977 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 05:46:00,978 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:00,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:46:00,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 05:46:00,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-14 05:46:00,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 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 05:46:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-14 05:46:00,983 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2024-11-14 05:46:00,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:00,983 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-14 05:46:00,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:00,984 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-14 05:46:00,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:46:00,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:00,984 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:46:00,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:46:00,985 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:46:00,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:00,985 INFO L85 PathProgramCache]: Analyzing trace with hash 339100960, now seen corresponding path program 1 times [2024-11-14 05:46:00,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:00,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246119903] [2024-11-14 05:46:00,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:00,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:01,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:01,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246119903] [2024-11-14 05:46:01,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246119903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:46:01,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:46:01,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:46:01,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254340881] [2024-11-14 05:46:01,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:46:01,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:46:01,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:01,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:46:01,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:46:01,112 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 05:46:01,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:01,194 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-11-14 05:46:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:46:01,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) Word has length 10 [2024-11-14 05:46:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:01,196 INFO L225 Difference]: With dead ends: 16 [2024-11-14 05:46:01,198 INFO L226 Difference]: Without dead ends: 15 [2024-11-14 05:46:01,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:46:01,199 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:01,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:46:01,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-14 05:46:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-14 05:46:01,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-14 05:46:01,207 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2024-11-14 05:46:01,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:01,207 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-14 05:46:01,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 05:46:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-14 05:46:01,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:46:01,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:01,208 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:46:01,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:46:01,209 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 05:46:01,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:01,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1922195217, now seen corresponding path program 1 times [2024-11-14 05:46:01,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:01,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485433741] [2024-11-14 05:46:01,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:01,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:01,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:01,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485433741] [2024-11-14 05:46:01,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485433741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:46:01,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284959420] [2024-11-14 05:46:01,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:01,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:01,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:46:01,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:46:01,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:46:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:01,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:46:01,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:46:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:01,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:46:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:01,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284959420] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:46:01,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1289847394] [2024-11-14 05:46:01,628 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:46:01,628 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:46:01,633 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:46:01,638 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:46:01,639 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:46:02,032 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:46:02,417 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '289#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-14 05:46:02,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:46:02,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:46:02,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-14 05:46:02,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347412319] [2024-11-14 05:46:02,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:46:02,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:46:02,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:02,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:46:02,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:46:02,419 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:02,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:02,525 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2024-11-14 05:46:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:46:02,526 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 05:46:02,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:02,526 INFO L225 Difference]: With dead ends: 27 [2024-11-14 05:46:02,527 INFO L226 Difference]: Without dead ends: 26 [2024-11-14 05:46:02,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-14 05:46:02,528 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:02,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 7 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:46:02,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-14 05:46:02,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-11-14 05:46:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:02,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-11-14 05:46:02,532 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 11 [2024-11-14 05:46:02,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:02,532 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-11-14 05:46:02,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:02,532 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-11-14 05:46:02,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:46:02,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:02,533 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-14 05:46:02,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:46:02,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:02,737 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:46:02,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:02,738 INFO L85 PathProgramCache]: Analyzing trace with hash 393667891, now seen corresponding path program 1 times [2024-11-14 05:46:02,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:02,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675882239] [2024-11-14 05:46:02,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:02,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:02,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:46:02,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:02,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675882239] [2024-11-14 05:46:02,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675882239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:46:02,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:46:02,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:46:02,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226491119] [2024-11-14 05:46:02,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:46:02,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:46:02,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:02,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:46:02,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:46:02,799 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:02,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:02,819 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-11-14 05:46:02,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:46:02,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-14 05:46:02,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:02,820 INFO L225 Difference]: With dead ends: 25 [2024-11-14 05:46:02,820 INFO L226 Difference]: Without dead ends: 24 [2024-11-14 05:46:02,821 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 05:46:02,821 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:02,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:46:02,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-14 05:46:02,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-14 05:46:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:02,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-11-14 05:46:02,826 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2024-11-14 05:46:02,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:02,826 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-11-14 05:46:02,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:46:02,826 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-11-14 05:46:02,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 05:46:02,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:02,826 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1] [2024-11-14 05:46:02,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:46:02,827 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 05:46:02,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:02,827 INFO L85 PathProgramCache]: Analyzing trace with hash -292746305, now seen corresponding path program 2 times [2024-11-14 05:46:02,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:02,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936256353] [2024-11-14 05:46:02,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:02,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:02,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:02,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936256353] [2024-11-14 05:46:02,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936256353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:46:02,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967201825] [2024-11-14 05:46:02,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:46:02,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:02,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:46:02,994 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:46:02,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:46:03,046 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 05:46:03,047 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:46:03,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:46:03,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:46:03,164 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:03,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:46:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:03,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967201825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:46:03,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1699169237] [2024-11-14 05:46:03,378 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:46:03,378 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:46:03,378 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:46:03,378 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:46:03,378 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:46:03,553 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:46:03,984 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '571#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-14 05:46:03,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:46:03,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:46:03,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-14 05:46:03,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923466099] [2024-11-14 05:46:03,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:46:03,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 05:46:03,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:03,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 05:46:03,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2024-11-14 05:46:03,986 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 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 05:46:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:04,426 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2024-11-14 05:46:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 05:46:04,427 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 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 23 [2024-11-14 05:46:04,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:04,427 INFO L225 Difference]: With dead ends: 49 [2024-11-14 05:46:04,428 INFO L226 Difference]: Without dead ends: 48 [2024-11-14 05:46:04,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 05:46:04,429 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:04,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:46:04,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-14 05:46:04,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-14 05:46:04,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 47 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 05:46:04,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2024-11-14 05:46:04,442 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 23 [2024-11-14 05:46:04,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:04,442 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2024-11-14 05:46:04,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 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 05:46:04,443 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2024-11-14 05:46:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 05:46:04,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:04,444 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1] [2024-11-14 05:46:04,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:46:04,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:04,644 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 05:46:04,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:04,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1669277211, now seen corresponding path program 3 times [2024-11-14 05:46:04,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:04,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492027239] [2024-11-14 05:46:04,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:04,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:05,016 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:05,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:05,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492027239] [2024-11-14 05:46:05,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492027239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:46:05,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724133233] [2024-11-14 05:46:05,017 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:46:05,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:05,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:46:05,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:46:05,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:46:05,077 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:46:05,077 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:46:05,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 05:46:05,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:46:05,490 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:05,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:46:06,070 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:06,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724133233] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:46:06,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [565014199] [2024-11-14 05:46:06,073 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:46:06,073 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:46:06,073 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:46:06,073 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:46:06,074 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:46:06,189 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:46:06,844 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1038#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-14 05:46:06,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:46:06,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:46:06,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 41 [2024-11-14 05:46:06,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118875107] [2024-11-14 05:46:06,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:46:06,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-14 05:46:06,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:06,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-14 05:46:06,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=1875, Unknown=0, NotChecked=0, Total=2256 [2024-11-14 05:46:06,848 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 42 states, 41 states have (on average 3.024390243902439) internal successors, (124), 42 states have internal predecessors, (124), 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 05:46:08,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:08,564 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2024-11-14 05:46:08,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 05:46:08,564 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.024390243902439) internal successors, (124), 42 states have internal predecessors, (124), 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 47 [2024-11-14 05:46:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:08,565 INFO L225 Difference]: With dead ends: 97 [2024-11-14 05:46:08,566 INFO L226 Difference]: Without dead ends: 96 [2024-11-14 05:46:08,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 101 SyntacticMatches, 8 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3236 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2108, Invalid=6264, Unknown=0, NotChecked=0, Total=8372 [2024-11-14 05:46:08,574 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 100 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:08,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 2 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:46:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-14 05:46:08,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-14 05:46:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 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 05:46:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2024-11-14 05:46:08,589 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 47 [2024-11-14 05:46:08,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:08,590 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2024-11-14 05:46:08,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.024390243902439) internal successors, (124), 42 states have internal predecessors, (124), 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 05:46:08,590 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2024-11-14 05:46:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-14 05:46:08,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:08,592 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1] [2024-11-14 05:46:08,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:46:08,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:08,793 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:46:08,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:08,793 INFO L85 PathProgramCache]: Analyzing trace with hash -475504941, now seen corresponding path program 4 times [2024-11-14 05:46:08,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:08,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571975512] [2024-11-14 05:46:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:08,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:10,009 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:10,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:10,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571975512] [2024-11-14 05:46:10,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571975512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:46:10,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379783308] [2024-11-14 05:46:10,010 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:46:10,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:10,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:46:10,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:46:10,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:46:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:10,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 05:46:10,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:46:11,676 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:11,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:46:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:13,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379783308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:46:13,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1217490739] [2024-11-14 05:46:13,418 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:46:13,418 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:46:13,419 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:46:13,419 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:46:13,419 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:46:13,512 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:46:14,666 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2015#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-14 05:46:14,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:46:14,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:46:14,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 93 [2024-11-14 05:46:14,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839536166] [2024-11-14 05:46:14,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:46:14,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2024-11-14 05:46:14,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:14,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2024-11-14 05:46:14,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1520, Invalid=8380, Unknown=0, NotChecked=0, Total=9900 [2024-11-14 05:46:14,675 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 94 states, 93 states have (on average 3.010752688172043) internal successors, (280), 94 states have internal predecessors, (280), 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 05:46:21,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:21,901 INFO L93 Difference]: Finished difference Result 199 states and 215 transitions. [2024-11-14 05:46:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-11-14 05:46:21,902 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.010752688172043) internal successors, (280), 94 states have internal predecessors, (280), 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 95 [2024-11-14 05:46:21,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:21,903 INFO L225 Difference]: With dead ends: 199 [2024-11-14 05:46:21,903 INFO L226 Difference]: Without dead ends: 198 [2024-11-14 05:46:21,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 201 SyntacticMatches, 16 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15735 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=9779, Invalid=29623, Unknown=0, NotChecked=0, Total=39402 [2024-11-14 05:46:21,911 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 402 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2399 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:21,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 2 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2399 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 05:46:21,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-14 05:46:21,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-14 05:46:21,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 1.0050761421319796) internal successors, (198), 197 states have internal predecessors, (198), 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 05:46:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 198 transitions. [2024-11-14 05:46:21,932 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 198 transitions. Word has length 95 [2024-11-14 05:46:21,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:21,932 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 198 transitions. [2024-11-14 05:46:21,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.010752688172043) internal successors, (280), 94 states have internal predecessors, (280), 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 05:46:21,933 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 198 transitions. [2024-11-14 05:46:21,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-14 05:46:21,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:21,935 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 1, 1, 1] [2024-11-14 05:46:21,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:46:22,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:46:22,136 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:46:22,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2101703610, now seen corresponding path program 5 times [2024-11-14 05:46:22,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:22,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997480190] [2024-11-14 05:46:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:22,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:26,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:26,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997480190] [2024-11-14 05:46:26,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997480190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:46:26,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753791865] [2024-11-14 05:46:26,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:46:26,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:46:26,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:46:26,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:46:26,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:46:26,738 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2024-11-14 05:46:26,738 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:46:26,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-14 05:46:26,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:46:31,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:31,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:46:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3072 backedges. 0 proven. 3072 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:46:37,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753791865] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:46:37,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1893003508] [2024-11-14 05:46:37,698 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:46:37,698 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:46:37,698 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:46:37,698 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:46:37,698 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:46:37,802 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:46:42,257 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4054#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-14 05:46:42,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:46:42,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:46:42,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 195 [2024-11-14 05:46:42,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782809011] [2024-11-14 05:46:42,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:46:42,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2024-11-14 05:46:42,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:42,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2024-11-14 05:46:42,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7586, Invalid=33016, Unknown=0, NotChecked=0, Total=40602 [2024-11-14 05:46:42,265 INFO L87 Difference]: Start difference. First operand 198 states and 198 transitions. Second operand has 196 states, 195 states have (on average 3.0205128205128204) internal successors, (589), 196 states have internal predecessors, (589), 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 05:47:42,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:42,435 INFO L93 Difference]: Finished difference Result 397 states and 429 transitions. [2024-11-14 05:47:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2024-11-14 05:47:42,436 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 3.0205128205128204) internal successors, (589), 196 states have internal predecessors, (589), 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 197 [2024-11-14 05:47:42,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:42,439 INFO L225 Difference]: With dead ends: 397 [2024-11-14 05:47:42,439 INFO L226 Difference]: Without dead ends: 396 [2024-11-14 05:47:42,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 861 GetRequests, 422 SyntacticMatches, 33 SemanticMatches, 406 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71263 ImplicationChecksByTransitivity, 69.3s TimeCoverageRelationStatistics Valid=41692, Invalid=124364, Unknown=0, NotChecked=0, Total=166056 [2024-11-14 05:47:42,451 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 1772 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12228 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 12228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:42,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 2 Invalid, 13001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 12228 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-14 05:47:42,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-14 05:47:42,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2024-11-14 05:47:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.0025316455696203) internal successors, (396), 395 states have internal predecessors, (396), 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 05:47:42,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 396 transitions. [2024-11-14 05:47:42,504 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 396 transitions. Word has length 197 [2024-11-14 05:47:42,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:42,505 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 396 transitions. [2024-11-14 05:47:42,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 3.0205128205128204) internal successors, (589), 196 states have internal predecessors, (589), 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 05:47:42,506 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 396 transitions. [2024-11-14 05:47:42,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-14 05:47:42,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:42,524 INFO L215 NwaCegarLoop]: trace histogram [66, 66, 65, 65, 65, 65, 1, 1, 1] [2024-11-14 05:47:42,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:47:42,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:47:42,728 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:47:42,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:42,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1095189713, now seen corresponding path program 6 times [2024-11-14 05:47:42,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:47:42,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568902200] [2024-11-14 05:47:42,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:42,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:47:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 12675 backedges. 0 proven. 12675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:47:57,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:47:57,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568902200] [2024-11-14 05:47:57,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568902200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:47:57,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784178556] [2024-11-14 05:47:57,049 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:47:57,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:47:57,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:47:57,051 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:47:57,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:47:57,225 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:47:57,225 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:47:57,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 133 conjuncts are in the unsatisfiable core [2024-11-14 05:47:57,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12675 backedges. 0 proven. 12675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:47:58,603 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:48:19,683 INFO L134 CoverageAnalysis]: Checked inductivity of 12675 backedges. 0 proven. 12675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:48:19,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784178556] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:48:19,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2062575080] [2024-11-14 05:48:19,685 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:48:19,685 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:48:19,685 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:48:19,686 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:48:19,686 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:48:19,755 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:48:37,078 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8029#(<= 1 |#StackHeapBarrier|)' at error location [2024-11-14 05:48:37,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:48:37,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:48:37,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [132, 132, 132] total 267 [2024-11-14 05:48:37,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793760456] [2024-11-14 05:48:37,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:48:37,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 268 states [2024-11-14 05:48:37,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:48:37,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 268 interpolants. [2024-11-14 05:48:37,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17734, Invalid=57068, Unknown=0, NotChecked=0, Total=74802 [2024-11-14 05:48:37,091 INFO L87 Difference]: Start difference. First operand 396 states and 396 transitions. Second operand has 268 states, 267 states have (on average 3.0037453183520597) internal successors, (802), 268 states have internal predecessors, (802), 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 05:54:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:54:06,201 INFO L93 Difference]: Finished difference Result 793 states and 858 transitions. [2024-11-14 05:54:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 453 states. [2024-11-14 05:54:06,202 INFO L78 Accepts]: Start accepts. Automaton has has 268 states, 267 states have (on average 3.0037453183520597) internal successors, (802), 268 states have internal predecessors, (802), 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 395 [2024-11-14 05:54:06,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:54:06,206 INFO L225 Difference]: With dead ends: 793 [2024-11-14 05:54:06,206 INFO L226 Difference]: Without dead ends: 792 [2024-11-14 05:54:06,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1763 GetRequests, 977 SyntacticMatches, 66 SemanticMatches, 720 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212016 ImplicationChecksByTransitivity, 349.1s TimeCoverageRelationStatistics Valid=125236, Invalid=395326, Unknown=0, NotChecked=0, Total=520562 [2024-11-14 05:54:06,228 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 6731 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38210 mSolverCounterSat, 2607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6731 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 40817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2607 IncrementalHoareTripleChecker+Valid, 38210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:54:06,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6731 Valid, 2 Invalid, 40817 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2607 Valid, 38210 Invalid, 0 Unknown, 0 Unchecked, 21.0s Time] [2024-11-14 05:54:06,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2024-11-14 05:54:06,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2024-11-14 05:54:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 1.0012642225031605) internal successors, (792), 791 states have internal predecessors, (792), 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 05:54:06,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 792 transitions. [2024-11-14 05:54:06,394 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 792 transitions. Word has length 395 [2024-11-14 05:54:06,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:54:06,395 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 792 transitions. [2024-11-14 05:54:06,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 268 states, 267 states have (on average 3.0037453183520597) internal successors, (802), 268 states have internal predecessors, (802), 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 05:54:06,397 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 792 transitions. [2024-11-14 05:54:06,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2024-11-14 05:54:06,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:54:06,424 INFO L215 NwaCegarLoop]: trace histogram [132, 132, 131, 131, 131, 131, 1, 1, 1] [2024-11-14 05:54:06,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:54:06,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:54:06,625 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:54:06,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:54:06,626 INFO L85 PathProgramCache]: Analyzing trace with hash 265131839, now seen corresponding path program 7 times [2024-11-14 05:54:06,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:54:06,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529549807] [2024-11-14 05:54:06,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:54:06,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:54:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:54:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 51483 backedges. 48507 proven. 0 refuted. 0 times theorem prover too weak. 2976 trivial. 0 not checked. [2024-11-14 05:54:19,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:54:19,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529549807] [2024-11-14 05:54:19,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529549807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:54:19,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:54:19,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2024-11-14 05:54:19,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719695259] [2024-11-14 05:54:19,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:54:19,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2024-11-14 05:54:19,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:54:19,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2024-11-14 05:54:19,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2024-11-14 05:54:19,830 INFO L87 Difference]: Start difference. First operand 792 states and 792 transitions. Second operand has 102 states, 102 states have (on average 5.9411764705882355) internal successors, (606), 102 states have internal predecessors, (606), 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 05:54:22,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:54:22,711 INFO L93 Difference]: Finished difference Result 792 states and 792 transitions. [2024-11-14 05:54:22,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2024-11-14 05:54:22,712 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 5.9411764705882355) internal successors, (606), 102 states have internal predecessors, (606), 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 791 [2024-11-14 05:54:22,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:54:22,714 INFO L225 Difference]: With dead ends: 792 [2024-11-14 05:54:22,714 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:54:22,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2024-11-14 05:54:22,719 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2714 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 2714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:54:22,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 2714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2714 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 05:54:22,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:54:22,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:54:22,720 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 05:54:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:54:22,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 791 [2024-11-14 05:54:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:54:22,721 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:54:22,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 5.9411764705882355) internal successors, (606), 102 states have internal predecessors, (606), 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 05:54:22,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:54:22,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:54:22,725 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-14 05:54:22,725 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-14 05:54:22,725 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-14 05:54:22,725 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-14 05:54:22,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 05:54:22,729 INFO L407 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1] [2024-11-14 05:54:22,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:54:28,209 WARN L286 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 1291 DAG size of output: 1009 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-14 05:54:35,767 WARN L286 SmtUtils]: Spent 7.55s on a formula simplification. DAG size of input: 1009 DAG size of output: 464 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-14 05:54:35,777 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:54:35,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:54:35 BoogieIcfgContainer [2024-11-14 05:54:35,877 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:54:35,878 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:54:35,878 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:54:35,878 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:54:35,882 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:46:00" (3/4) ... [2024-11-14 05:54:35,885 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:54:35,899 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-14 05:54:35,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 05:54:35,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 05:54:35,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:54:36,014 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:54:36,014 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:54:36,014 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:54:36,016 INFO L158 Benchmark]: Toolchain (without parser) took 516793.71ms. Allocated memory was 117.4MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 94.4MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 618.8MB. Max. memory is 16.1GB. [2024-11-14 05:54:36,016 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:54:36,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.67ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 83.6MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:54:36,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.14ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 82.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:54:36,017 INFO L158 Benchmark]: Boogie Preprocessor took 29.21ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 82.0MB in the end (delta: 686.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:54:36,017 INFO L158 Benchmark]: RCFGBuilder took 425.39ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 70.6MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:54:36,018 INFO L158 Benchmark]: TraceAbstraction took 515867.92ms. Allocated memory was 117.4MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 70.0MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-14 05:54:36,018 INFO L158 Benchmark]: Witness Printer took 136.81ms. Allocated memory is still 2.4GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:54:36,024 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.67ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 83.6MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.14ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 82.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.21ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 82.0MB in the end (delta: 686.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 425.39ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 70.6MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 515867.92ms. Allocated memory was 117.4MB in the beginning and 2.4GB in the end (delta: 2.3GB). Free memory was 70.0MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 136.81ms. Allocated memory is still 2.4GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 4.5MB). 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 502.6s, OverallIterations: 13, TraceHistogramMax: 132, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 402.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9048 SdHoareTripleChecker+Valid, 31.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9048 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 26.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 3632 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56387 IncrementalHoareTripleChecker+Invalid, 60019 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3632 mSolverCounterUnsat, 48 mSDtfsCounter, 56387 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3482 GetRequests, 1775 SyntacticMatches, 129 SemanticMatches, 1578 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302889 ImplicationChecksByTransitivity, 437.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=792occurred in iteration=12, InterpolantAutomatonStates: 964, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 70.6s InterpolantComputationTime, 2372 NumberOfCodeBlocks, 2372 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 3115 ConstructedInterpolants, 0 QuantifiedInterpolants, 18177 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1398 ConjunctsInSsa, 264 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 51490/101287 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: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) c + 1128) <= ((long long) 47 * i))) || (((0 <= c) && (i <= 113)) && (((long long) c + 136) <= ((long long) 16 * i)))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) c + 703) <= ((long long) i * 37)))) || (((((long long) c + 210) <= ((long long) i * 20)) && (0 <= c)) && ((((long long) i * 11) + c) <= 2147483592))) || ((((c + ((long long) 3 * i)) <= 2147481322) && (((long long) 595 + c) <= ((long long) i * 34))) && (0 <= c))) || (((((long long) c + i) < 2147483648) && (0 <= c)) && (((long long) c + 2016) <= ((long long) i * 63)))) || (((0 <= c) && (((long long) c + 406) <= ((long long) i * 28))) && ((c + ((long long) 3 * i)) <= 2147483644))) || (((0 <= c) && ((c + ((long long) 5 * i)) <= 2147481310)) && (((long long) c + 528) <= ((long long) 32 * i)))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) 990 + c) <= ((long long) 44 * i)))) || (((0 <= c) && ((c + ((long long) 5 * i)) <= 2147481315)) && (((long long) c + 55) <= ((long long) i * 10)))) || (((0 <= c) && ((c + ((long long) 14 * i)) <= 2147483556)) && (((long long) 153 + c) <= ((long long) i * 17)))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) c + 1540) <= ((long long) i * 55)))) || (((0 <= c) && (((long long) 190 + c) <= ((long long) 19 * i))) && ((((long long) i * 13) + c) <= 2147483569))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) c + 1081) <= ((long long) 46 * i)))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) 1225 + c) <= ((long long) 49 * i)))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) 903 + c) <= ((long long) 42 * i)))) || (((((long long) 2080 + c) <= ((long long) 64 * i)) && (i <= 100)) && (0 <= c))) || (((((long long) c + 1711) <= ((long long) i * 58)) && ((c + ((long long) 2 * i)) <= 2147483646)) && (0 <= c))) || (((0 <= c) && (((long long) c + i) < 2147480876)) && (67 <= i))) || (((((long long) 351 + c) <= ((long long) i * 26)) && (0 <= c)) && ((c + ((long long) 5 * i)) <= 2147481310))) || (((0 <= c) && (((long long) 465 + c) <= ((long long) 30 * i))) && ((c + ((long long) 5 * i)) <= 2147481310))) || (((((long long) c + 1431) <= ((long long) 53 * i)) && ((c + ((long long) 2 * i)) <= 2147483646)) && (0 <= c))) || (((0 <= c) && (((long long) 66 + c) <= ((long long) i * 11))) && ((c + ((long long) 3 * i)) <= 2147483644))) || (((0 <= c) && ((c + ((long long) 5 * i)) <= 2147481310)) && (((long long) 21 + c) <= ((long long) 6 * i)))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) c + 1378) <= ((long long) 52 * i)))) || (((0 <= c) && ((c + ((long long) 2 * i)) <= 2147481324)) && (((long long) c + 666) <= ((long long) i * 36)))) || (((i == 4) && (0 <= c)) && (c <= 6))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) c + 1596) <= ((long long) 56 * i)))) || ((((66 <= i) && (c <= 2147479227)) && (0 <= c)) && (((long long) c + i) <= 2147483646))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (((long long) c + 1770) <= ((long long) 59 * i))) && (0 <= c))) || ((((((((((((((((((((((((((((((((((((87 < i) || (((long long) c + i) < 2147482426)) && ((((long long) c + i) < 2147481226) || (72 < i))) && (((long long) c + i) <= 2147483647)) && ((78 < i) || (((long long) c + i) < 2147481679))) && ((88 < i) || (((long long) c + i) < 2147482514))) && ((((long long) c + i) < 2147482784) || (91 < i))) && ((73 < i) || (((long long) c + i) < 2147481299))) && ((((long long) c + i) < 2147481838) || (80 < i))) && ((76 < i) || (((long long) c + i) < 2147481524))) && ((69 < i) || (((long long) c + i) < 2147481013))) && ((93 < i) || (((long long) c + i) < 2147482969))) && ((82 < i) || (((long long) c + i) < 2147482001))) && ((89 < i) || (((long long) c + i) < 2147482603))) && ((((long long) c + i) < 2147481083) || (70 < i))) && (((c + ((long long) 2 * i)) < 2147483647) || (99 < i))) && (0 <= c)) && ((74 < i) || (((long long) c + i) < 2147481373))) && ((81 < i) || (((long long) c + i) < 2147481919))) && ((((long long) c + i) < 2147482168) || (84 < i))) && ((71 < i) || (((long long) c + i) < 2147481154))) && ((((long long) c + i) < 2147482084) || (83 < i))) && ((((long long) c + i) < 2147483158) || (95 < i))) && ((((long long) c + i) < 2147480944) || (68 < i))) && ((((long long) c + i) < 2147482876) || (92 < i))) && ((((long long) c + i) < 2147481601) || (77 < i))) && ((86 < i) || (((long long) c + i) < 2147482339))) && ((98 < i) || (((long long) c + i) < 2147483449))) && ((((long long) c + i) < 2147481448) || (75 < i))) && ((((long long) c + i) < 2147483063) || (94 < i))) && (68 <= i)) && ((85 < i) || (((long long) c + i) < 2147482253))) && ((79 < i) || (((long long) c + i) < 2147481758))) && ((96 < i) || (((long long) c + i) < 2147483254))) && ((90 < i) || (((long long) c + i) < 2147482693))) && ((((long long) c + i) < 2147483351) || (97 < i)))) || (((5 == i) && (c <= 10)) && (0 <= c))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (0 <= c)) && (((long long) c + 1275) <= ((long long) i * 50)))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (((long long) c + 820) <= ((long long) 40 * i))) && (0 <= c))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (((long long) c + 1891) <= ((long long) i * 61))) && (0 <= c))) || (((0 <= c) && ((c + ((long long) 5 * i)) <= 2147481315)) && (((long long) 91 + c) <= ((long long) i * 13)))) || (((0 <= c) && (i <= 112)) && (((long long) c + 105) <= ((long long) 14 * i)))) || ((((c + ((long long) 2 * i)) <= 2147483646) && (((long long) c + 780) <= ((long long) i * 39))) && (0 <= c))) || ((((0 <= c) && ((c + ((long long) 5 * i)) <= 2147481310)) && (((long long) c + 175) <= ((long long) 19 * i))) && (25 <= i))) || (((c <= 1) && (2 == i)) && (0 <= c))) || (((0 <= c) && (((long long) c + 36) <= ((long long) i * 8))) && (i <= 106))) || ((((((long long) 156 + c) <= ((long long) i * 18)) && (0 <= c)) && (24 <= i)) && ((c + ((long long) 5 * i)) <= 2147481310))) || ((c == 0) && (i == 0))) || (((3 == i) && (0 <= c)) && (c <= 3))) || ((c == 0) && (i == 1))) || (((((long long) 253 + c) <= ((long long) 22 * i)) && (0 <= c)) && ((c + ((long long) 9 * i)) <= 2147483611))) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:54:36,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc44d24-c94d-4400-8819-ad15274217ec/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE