./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-006.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/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_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-006.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/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_850d02bc-6dda-4527-8700-05e410fae80c/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 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:15:57,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:15:57,595 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:15:57,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:15:57,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:15:57,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:15:57,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:15:57,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:15:57,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:15:57,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:15:57,659 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:15:57,659 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:15:57,660 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:15:57,660 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:15:57,661 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:15:57,661 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:15:57,661 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:15:57,661 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:15:57,661 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:15:57,661 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:15:57,661 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:15:57,662 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:15:57,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:15:57,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:15:57,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:15:57,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:15:57,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:15:57,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:15:57,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:15:57,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:15:57,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:15:57,663 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:15:57,664 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:15:57,664 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:15:57,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:15:57,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:15:57,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:15:57,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:15:57,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:15:57,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:15:57,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:15:57,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:15:57,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:15:57,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:15:57,666 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:15:57,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:15:57,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:15:57,666 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:15:57,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:15:57,666 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_850d02bc-6dda-4527-8700-05e410fae80c/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 -> 5db620ad631bbb2b4f2f184a6694f3d470d0214c96a5cb4b6c65ad330c77841f [2024-11-14 05:15:58,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:15:58,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:15:58,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:15:58,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:15:58,112 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:15:58,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/xcsp/AllInterval-006.c Unable to find full path for "g++" [2024-11-14 05:16:00,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:16:00,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:16:00,805 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/sv-benchmarks/c/xcsp/AllInterval-006.c [2024-11-14 05:16:00,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/data/dd87c7ba1/f536a12055014d20a955188a25d28300/FLAG274cfcc07 [2024-11-14 05:16:01,001 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/data/dd87c7ba1/f536a12055014d20a955188a25d28300 [2024-11-14 05:16:01,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:16:01,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:16:01,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:16:01,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:16:01,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:16:01,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64526c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01, skipping insertion in model container [2024-11-14 05:16:01,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:16:01,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:16:01,310 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:16:01,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:16:01,360 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:16:01,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01 WrapperNode [2024-11-14 05:16:01,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:16:01,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:16:01,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:16:01,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:16:01,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,417 INFO L138 Inliner]: procedures = 13, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 175 [2024-11-14 05:16:01,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:16:01,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:16:01,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:16:01,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:16:01,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:16:01,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:16:01,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:16:01,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:16:01,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (1/1) ... [2024-11-14 05:16:01,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:16:01,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:16:01,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:16:01,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:16:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:16:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:16:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:16:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:16:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-14 05:16:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-14 05:16:01,679 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:16:01,682 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:16:02,187 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-14 05:16:02,188 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:16:02,238 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:16:02,238 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:16:02,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:16:02 BoogieIcfgContainer [2024-11-14 05:16:02,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:16:02,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:16:02,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:16:02,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:16:02,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:16:01" (1/3) ... [2024-11-14 05:16:02,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e735b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:16:02, skipping insertion in model container [2024-11-14 05:16:02,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:16:01" (2/3) ... [2024-11-14 05:16:02,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e735b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:16:02, skipping insertion in model container [2024-11-14 05:16:02,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:16:02" (3/3) ... [2024-11-14 05:16:02,251 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2024-11-14 05:16:02,270 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:16:02,272 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG AllInterval-006.c that has 2 procedures, 119 locations, 1 initial locations, 0 loop locations, and 20 error locations. [2024-11-14 05:16:02,341 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:16:02,356 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;@79f0f0ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:16:02,357 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-14 05:16:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 65 states have internal predecessors, (70), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-14 05:16:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-14 05:16:02,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:16:02,381 INFO L215 NwaCegarLoop]: trace histogram [47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:16:02,382 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:16:02,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:16:02,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2093259789, now seen corresponding path program 1 times [2024-11-14 05:16:02,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:16:02,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97048326] [2024-11-14 05:16:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:02,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:16:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:16:03,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2024-11-14 05:16:03,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:16:03,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97048326] [2024-11-14 05:16:03,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97048326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:16:03,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950390826] [2024-11-14 05:16:03,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:03,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:16:03,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:16:03,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:16:03,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:16:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:16:03,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:16:03,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:16:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2024-11-14 05:16:04,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:16:05,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2024-11-14 05:16:05,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950390826] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:16:05,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1455697347] [2024-11-14 05:16:05,131 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-14 05:16:05,131 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:16:05,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:16:05,141 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:16:05,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:16:13,782 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:16:13,784 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:16:31,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1455697347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:16:31,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:16:31,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [4, 4, 4] total 67 [2024-11-14 05:16:31,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295453135] [2024-11-14 05:16:31,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:16:31,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-14 05:16:31,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:16:31,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-14 05:16:31,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2131, Invalid=2425, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 05:16:31,821 INFO L87 Difference]: Start difference. First operand has 119 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 65 states have internal predecessors, (70), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 62 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-14 05:16:33,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:16:33,513 INFO L93 Difference]: Finished difference Result 119 states and 174 transitions. [2024-11-14 05:16:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-14 05:16:33,516 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 155 [2024-11-14 05:16:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:16:33,529 INFO L225 Difference]: With dead ends: 119 [2024-11-14 05:16:33,530 INFO L226 Difference]: Without dead ends: 113 [2024-11-14 05:16:33,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 400 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=2131, Invalid=2425, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 05:16:33,541 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 59 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:16:33,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 462 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 05:16:33,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-14 05:16:33,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-14 05:16:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 43 states have (on average 1.4883720930232558) internal successors, (64), 60 states have internal predecessors, (64), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 05:16:33,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 166 transitions. [2024-11-14 05:16:33,650 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 166 transitions. Word has length 155 [2024-11-14 05:16:33,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:16:33,652 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 166 transitions. [2024-11-14 05:16:33,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-14 05:16:33,653 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 166 transitions. [2024-11-14 05:16:33,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 05:16:33,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:16:33,657 INFO L215 NwaCegarLoop]: trace histogram [47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:16:33,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:16:33,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 05:16:33,861 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:16:33,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:16:33,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1672297972, now seen corresponding path program 1 times [2024-11-14 05:16:33,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:16:33,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904433172] [2024-11-14 05:16:33,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:33,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:16:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:16:34,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2024-11-14 05:16:34,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:16:34,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904433172] [2024-11-14 05:16:34,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904433172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:16:34,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:16:34,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:16:34,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901408874] [2024-11-14 05:16:34,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:16:34,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:16:34,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:16:34,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:16:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:16:34,032 INFO L87 Difference]: Start difference. First operand 113 states and 166 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2024-11-14 05:16:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:16:34,153 INFO L93 Difference]: Finished difference Result 113 states and 166 transitions. [2024-11-14 05:16:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:16:34,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 158 [2024-11-14 05:16:34,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:16:34,158 INFO L225 Difference]: With dead ends: 113 [2024-11-14 05:16:34,158 INFO L226 Difference]: Without dead ends: 108 [2024-11-14 05:16:34,159 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 05:16:34,162 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 5 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:16:34,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 271 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:16:34,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-14 05:16:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-14 05:16:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 43 states have (on average 1.372093023255814) internal successors, (59), 55 states have internal predecessors, (59), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 05:16:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 161 transitions. [2024-11-14 05:16:34,247 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 161 transitions. Word has length 158 [2024-11-14 05:16:34,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:16:34,249 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 161 transitions. [2024-11-14 05:16:34,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2024-11-14 05:16:34,249 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 161 transitions. [2024-11-14 05:16:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-14 05:16:34,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:16:34,254 INFO L215 NwaCegarLoop]: trace histogram [47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:16:34,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:16:34,255 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:16:34,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:16:34,255 INFO L85 PathProgramCache]: Analyzing trace with hash 301629684, now seen corresponding path program 1 times [2024-11-14 05:16:34,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:16:34,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219449626] [2024-11-14 05:16:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:16:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:16:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2024-11-14 05:16:34,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:16:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219449626] [2024-11-14 05:16:34,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219449626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:16:34,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302906946] [2024-11-14 05:16:34,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:34,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:16:34,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:16:34,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:16:34,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:16:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:16:34,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:16:34,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:16:35,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2024-11-14 05:16:35,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:16:35,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2024-11-14 05:16:35,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302906946] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:16:35,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1352285067] [2024-11-14 05:16:35,581 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 05:16:35,581 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:16:35,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:16:35,582 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:16:35,582 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:16:41,162 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:16:41,164 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:16:58,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1352285067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:16:58,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:16:58,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [5, 5, 5] total 68 [2024-11-14 05:16:58,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108308062] [2024-11-14 05:16:58,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:16:58,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-11-14 05:16:58,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:16:58,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-11-14 05:16:58,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2022, Invalid=2670, Unknown=0, NotChecked=0, Total=4692 [2024-11-14 05:16:58,983 INFO L87 Difference]: Start difference. First operand 108 states and 161 transitions. Second operand has 64 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-14 05:17:00,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:17:00,983 INFO L93 Difference]: Finished difference Result 108 states and 161 transitions. [2024-11-14 05:17:00,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-14 05:17:00,983 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 159 [2024-11-14 05:17:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:17:00,987 INFO L225 Difference]: With dead ends: 108 [2024-11-14 05:17:00,987 INFO L226 Difference]: Without dead ends: 107 [2024-11-14 05:17:00,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 410 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=2022, Invalid=2670, Unknown=0, NotChecked=0, Total=4692 [2024-11-14 05:17:00,989 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 44 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:17:00,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 370 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 05:17:00,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-14 05:17:01,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-14 05:17:01,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 54 states have internal predecessors, (58), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 05:17:01,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 160 transitions. [2024-11-14 05:17:01,029 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 160 transitions. Word has length 159 [2024-11-14 05:17:01,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:17:01,029 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 160 transitions. [2024-11-14 05:17:01,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-14 05:17:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 160 transitions. [2024-11-14 05:17:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-14 05:17:01,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:17:01,033 INFO L215 NwaCegarLoop]: trace histogram [48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:17:01,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:17:01,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:01,234 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:17:01,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:17:01,234 INFO L85 PathProgramCache]: Analyzing trace with hash 730305086, now seen corresponding path program 1 times [2024-11-14 05:17:01,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:17:01,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701907984] [2024-11-14 05:17:01,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:01,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:17:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:17:01,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:17:01,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701907984] [2024-11-14 05:17:01,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701907984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:17:01,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954684112] [2024-11-14 05:17:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:01,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:01,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:17:01,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:17:01,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:17:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:01,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:17:01,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:17:01,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:17:01,986 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:17:02,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:17:02,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954684112] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:17:02,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1778161516] [2024-11-14 05:17:02,357 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2024-11-14 05:17:02,357 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:17:02,358 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:17:02,358 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:17:02,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:17:06,557 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:17:06,558 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:17:24,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1778161516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:17:24,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:17:24,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [4, 4, 4] total 71 [2024-11-14 05:17:24,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553808392] [2024-11-14 05:17:24,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:17:24,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-11-14 05:17:24,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:17:24,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-11-14 05:17:24,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2153, Invalid=2959, Unknown=0, NotChecked=0, Total=5112 [2024-11-14 05:17:24,561 INFO L87 Difference]: Start difference. First operand 107 states and 160 transitions. Second operand has 66 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:17:26,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:17:26,702 INFO L93 Difference]: Finished difference Result 113 states and 167 transitions. [2024-11-14 05:17:26,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-14 05:17:26,703 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 162 [2024-11-14 05:17:26,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:17:26,705 INFO L225 Difference]: With dead ends: 113 [2024-11-14 05:17:26,705 INFO L226 Difference]: Without dead ends: 111 [2024-11-14 05:17:26,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 416 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=2153, Invalid=2959, Unknown=0, NotChecked=0, Total=5112 [2024-11-14 05:17:26,708 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 51 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:17:26,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 245 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 05:17:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-14 05:17:26,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-14 05:17:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 46 states have (on average 1.326086956521739) internal successors, (61), 57 states have internal predecessors, (61), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-14 05:17:26,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 165 transitions. [2024-11-14 05:17:26,755 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 165 transitions. Word has length 162 [2024-11-14 05:17:26,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:17:26,756 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 165 transitions. [2024-11-14 05:17:26,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:17:26,756 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 165 transitions. [2024-11-14 05:17:26,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-14 05:17:26,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:17:26,760 INFO L215 NwaCegarLoop]: trace histogram [48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:17:26,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:17:26,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:26,962 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:17:26,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:17:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash 760050810, now seen corresponding path program 1 times [2024-11-14 05:17:26,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:17:26,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42579878] [2024-11-14 05:17:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:26,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:17:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:27,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:17:27,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:17:27,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42579878] [2024-11-14 05:17:27,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42579878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:17:27,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294817653] [2024-11-14 05:17:27,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:27,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:27,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:17:27,271 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:17:27,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:17:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:27,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:17:27,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:17:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:17:27,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:17:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:17:28,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294817653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:17:28,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1246333374] [2024-11-14 05:17:28,135 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-14 05:17:28,139 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:17:28,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:17:28,141 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:17:28,142 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:17:32,471 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:17:32,472 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:17:52,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1246333374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:17:52,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:17:52,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [65] imperfect sequences [6, 6, 6] total 78 [2024-11-14 05:17:52,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096629402] [2024-11-14 05:17:52,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:17:52,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-14 05:17:52,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:17:52,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-14 05:17:52,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2343, Invalid=3819, Unknown=0, NotChecked=0, Total=6162 [2024-11-14 05:17:52,663 INFO L87 Difference]: Start difference. First operand 111 states and 165 transitions. Second operand has 67 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:17:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:17:55,099 INFO L93 Difference]: Finished difference Result 111 states and 165 transitions. [2024-11-14 05:17:55,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-14 05:17:55,100 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 164 [2024-11-14 05:17:55,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:17:55,102 INFO L225 Difference]: With dead ends: 111 [2024-11-14 05:17:55,103 INFO L226 Difference]: Without dead ends: 109 [2024-11-14 05:17:55,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 417 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=2343, Invalid=3819, Unknown=0, NotChecked=0, Total=6162 [2024-11-14 05:17:55,108 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 44 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:17:55,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 284 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-14 05:17:55,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-14 05:17:55,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2024-11-14 05:17:55,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 43 states have (on average 1.302325581395349) internal successors, (56), 52 states have internal predecessors, (56), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 05:17:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 158 transitions. [2024-11-14 05:17:55,161 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 158 transitions. Word has length 164 [2024-11-14 05:17:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:17:55,162 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 158 transitions. [2024-11-14 05:17:55,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:17:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 158 transitions. [2024-11-14 05:17:55,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-14 05:17:55,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:17:55,165 INFO L215 NwaCegarLoop]: trace histogram [48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:17:55,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:17:55,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:55,366 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:17:55,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:17:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash 487357093, now seen corresponding path program 1 times [2024-11-14 05:17:55,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:17:55,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301362978] [2024-11-14 05:17:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:55,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:17:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:55,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:17:55,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:17:55,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301362978] [2024-11-14 05:17:55,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301362978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:17:55,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296941115] [2024-11-14 05:17:55,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:55,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:55,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:17:55,660 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:17:55,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:17:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:55,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:17:55,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:17:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:17:56,076 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:17:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:17:56,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296941115] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:17:56,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1351876809] [2024-11-14 05:17:56,463 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2024-11-14 05:17:56,463 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:17:56,463 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:17:56,463 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:17:56,463 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:18:01,074 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:18:01,076 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:18:22,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1351876809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:18:22,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:18:22,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [5, 5, 5] total 72 [2024-11-14 05:18:22,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17219884] [2024-11-14 05:18:22,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:18:22,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-11-14 05:18:22,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:18:22,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-11-14 05:18:22,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2043, Invalid=3213, Unknown=0, NotChecked=0, Total=5256 [2024-11-14 05:18:22,151 INFO L87 Difference]: Start difference. First operand 105 states and 158 transitions. Second operand has 68 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:18:24,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:18:24,920 INFO L93 Difference]: Finished difference Result 113 states and 168 transitions. [2024-11-14 05:18:24,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-14 05:18:24,921 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 166 [2024-11-14 05:18:24,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:18:24,923 INFO L225 Difference]: With dead ends: 113 [2024-11-14 05:18:24,923 INFO L226 Difference]: Without dead ends: 112 [2024-11-14 05:18:24,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 426 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=2043, Invalid=3213, Unknown=0, NotChecked=0, Total=5256 [2024-11-14 05:18:24,925 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 47 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:18:24,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 276 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 05:18:24,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-14 05:18:24,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-14 05:18:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 58 states have internal predecessors, (63), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-14 05:18:24,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 167 transitions. [2024-11-14 05:18:24,970 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 167 transitions. Word has length 166 [2024-11-14 05:18:24,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:18:24,971 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 167 transitions. [2024-11-14 05:18:24,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:18:24,971 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 167 transitions. [2024-11-14 05:18:24,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 05:18:24,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:18:24,973 INFO L215 NwaCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:18:25,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:18:25,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:18:25,174 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:18:25,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:18:25,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1817252361, now seen corresponding path program 1 times [2024-11-14 05:18:25,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:18:25,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517287602] [2024-11-14 05:18:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:25,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:18:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:18:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:18:25,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:18:25,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517287602] [2024-11-14 05:18:25,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517287602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:18:25,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952529191] [2024-11-14 05:18:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:25,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:18:25,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:18:25,423 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:18:25,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:18:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:18:25,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:18:25,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:18:25,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:18:25,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:18:26,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:18:26,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952529191] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:18:26,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2119965793] [2024-11-14 05:18:26,230 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2024-11-14 05:18:26,234 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:18:26,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:18:26,234 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:18:26,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:18:31,121 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:18:31,122 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:18:53,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2119965793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:18:53,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:18:53,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [4, 4, 4] total 75 [2024-11-14 05:18:53,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235076510] [2024-11-14 05:18:53,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:18:53,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2024-11-14 05:18:53,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:18:53,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2024-11-14 05:18:53,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2173, Invalid=3527, Unknown=0, NotChecked=0, Total=5700 [2024-11-14 05:18:53,502 INFO L87 Difference]: Start difference. First operand 112 states and 167 transitions. Second operand has 70 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:18:56,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:18:56,608 INFO L93 Difference]: Finished difference Result 118 states and 174 transitions. [2024-11-14 05:18:56,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-14 05:18:56,609 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 169 [2024-11-14 05:18:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:18:56,610 INFO L225 Difference]: With dead ends: 118 [2024-11-14 05:18:56,610 INFO L226 Difference]: Without dead ends: 116 [2024-11-14 05:18:56,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 432 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=2173, Invalid=3527, Unknown=0, NotChecked=0, Total=5700 [2024-11-14 05:18:56,612 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 49 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:18:56,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 235 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-14 05:18:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-14 05:18:56,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-14 05:18:56,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 61 states have internal predecessors, (66), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 05:18:56,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 172 transitions. [2024-11-14 05:18:56,641 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 172 transitions. Word has length 169 [2024-11-14 05:18:56,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:18:56,641 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 172 transitions. [2024-11-14 05:18:56,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:18:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 172 transitions. [2024-11-14 05:18:56,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-14 05:18:56,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:18:56,642 INFO L215 NwaCegarLoop]: trace histogram [48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:18:56,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:18:56,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:18:56,843 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:18:56,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:18:56,843 INFO L85 PathProgramCache]: Analyzing trace with hash 677306081, now seen corresponding path program 1 times [2024-11-14 05:18:56,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:18:56,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405293565] [2024-11-14 05:18:56,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:56,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:18:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:18:57,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 4 proven. 88 refuted. 0 times theorem prover too weak. 2164 trivial. 0 not checked. [2024-11-14 05:18:57,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:18:57,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405293565] [2024-11-14 05:18:57,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405293565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:18:57,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779706288] [2024-11-14 05:18:57,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:57,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:18:57,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:18:57,149 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:18:57,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:18:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:18:57,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:18:57,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:18:57,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:18:57,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:18:57,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-14 05:18:57,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779706288] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:18:57,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1726859854] [2024-11-14 05:18:57,977 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2024-11-14 05:18:57,978 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:18:57,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:18:57,979 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:18:57,979 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:02,094 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:19:02,095 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:23,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1726859854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:23,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:23,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [7, 7, 7] total 83 [2024-11-14 05:19:23,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677631821] [2024-11-14 05:19:23,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:23,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-14 05:19:23,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:23,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-14 05:19:23,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2317, Invalid=4655, Unknown=0, NotChecked=0, Total=6972 [2024-11-14 05:19:23,891 INFO L87 Difference]: Start difference. First operand 116 states and 172 transitions. Second operand has 69 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:19:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:27,120 INFO L93 Difference]: Finished difference Result 116 states and 172 transitions. [2024-11-14 05:19:27,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-14 05:19:27,121 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 168 [2024-11-14 05:19:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:27,123 INFO L225 Difference]: With dead ends: 116 [2024-11-14 05:19:27,123 INFO L226 Difference]: Without dead ends: 115 [2024-11-14 05:19:27,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 426 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=2317, Invalid=4655, Unknown=0, NotChecked=0, Total=6972 [2024-11-14 05:19:27,125 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 40 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:27,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 262 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-14 05:19:27,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-14 05:19:27,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-11-14 05:19:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 50 states have (on average 1.26) internal successors, (63), 58 states have internal predecessors, (63), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 05:19:27,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 169 transitions. [2024-11-14 05:19:27,155 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 169 transitions. Word has length 168 [2024-11-14 05:19:27,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:27,156 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 169 transitions. [2024-11-14 05:19:27,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 05:19:27,156 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 169 transitions. [2024-11-14 05:19:27,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-14 05:19:27,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:27,158 INFO L215 NwaCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:27,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:19:27,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:27,362 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:19:27,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:27,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2054898309, now seen corresponding path program 1 times [2024-11-14 05:19:27,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:27,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612936395] [2024-11-14 05:19:27,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:27,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:27,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:19:27,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:27,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612936395] [2024-11-14 05:19:27,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612936395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:27,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432053010] [2024-11-14 05:19:27,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:27,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:27,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:27,592 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:27,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:19:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:27,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:19:27,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:27,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:19:27,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:28,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:19:28,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432053010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:28,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [278073742] [2024-11-14 05:19:28,253 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2024-11-14 05:19:28,253 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:28,254 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:28,254 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:28,254 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:32,166 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:19:32,167 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:54,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [278073742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:54,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:54,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [6, 6, 6] total 82 [2024-11-14 05:19:54,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424825250] [2024-11-14 05:19:54,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:54,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-11-14 05:19:54,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:54,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-11-14 05:19:54,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2371, Invalid=4435, Unknown=0, NotChecked=0, Total=6806 [2024-11-14 05:19:54,910 INFO L87 Difference]: Start difference. First operand 113 states and 169 transitions. Second operand has 71 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:19:58,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:58,111 INFO L93 Difference]: Finished difference Result 121 states and 178 transitions. [2024-11-14 05:19:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-14 05:19:58,111 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 171 [2024-11-14 05:19:58,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:58,113 INFO L225 Difference]: With dead ends: 121 [2024-11-14 05:19:58,113 INFO L226 Difference]: Without dead ends: 119 [2024-11-14 05:19:58,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 433 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=2371, Invalid=4435, Unknown=0, NotChecked=0, Total=6806 [2024-11-14 05:19:58,115 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 45 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:58,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 235 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-14 05:19:58,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-14 05:19:58,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2024-11-14 05:19:58,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 52 states have (on average 1.25) internal successors, (65), 60 states have internal predecessors, (65), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 05:19:58,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 171 transitions. [2024-11-14 05:19:58,140 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 171 transitions. Word has length 171 [2024-11-14 05:19:58,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:58,140 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 171 transitions. [2024-11-14 05:19:58,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:19:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 171 transitions. [2024-11-14 05:19:58,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-14 05:19:58,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:58,142 INFO L215 NwaCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:58,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 05:19:58,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:58,343 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:19:58,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:58,343 INFO L85 PathProgramCache]: Analyzing trace with hash -179342259, now seen corresponding path program 1 times [2024-11-14 05:19:58,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:58,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623126977] [2024-11-14 05:19:58,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:58,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:58,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:19:58,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:58,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623126977] [2024-11-14 05:19:58,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623126977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:58,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692016452] [2024-11-14 05:19:58,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:58,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:58,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:58,520 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:58,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:19:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:58,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:19:58,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:58,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:19:58,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:19:59,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692016452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:59,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [250893308] [2024-11-14 05:19:59,257 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2024-11-14 05:19:59,259 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:59,260 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:59,260 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:59,260 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:20:03,143 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:20:03,144 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:20:25,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [250893308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:20:25,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:20:25,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [4, 4, 4] total 76 [2024-11-14 05:20:25,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340170318] [2024-11-14 05:20:25,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:20:25,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-11-14 05:20:25,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:25,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-11-14 05:20:25,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2180, Invalid=3672, Unknown=0, NotChecked=0, Total=5852 [2024-11-14 05:20:25,948 INFO L87 Difference]: Start difference. First operand 115 states and 171 transitions. Second operand has 71 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:20:29,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:29,571 INFO L93 Difference]: Finished difference Result 121 states and 178 transitions. [2024-11-14 05:20:29,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-14 05:20:29,572 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 171 [2024-11-14 05:20:29,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:29,573 INFO L225 Difference]: With dead ends: 121 [2024-11-14 05:20:29,573 INFO L226 Difference]: Without dead ends: 119 [2024-11-14 05:20:29,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 437 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=2180, Invalid=3672, Unknown=0, NotChecked=0, Total=5852 [2024-11-14 05:20:29,575 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 46 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 1846 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:29,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 339 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1846 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 05:20:29,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-14 05:20:29,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2024-11-14 05:20:29,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 52 states have (on average 1.25) internal successors, (65), 60 states have internal predecessors, (65), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 05:20:29,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 171 transitions. [2024-11-14 05:20:29,603 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 171 transitions. Word has length 171 [2024-11-14 05:20:29,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:29,603 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 171 transitions. [2024-11-14 05:20:29,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:20:29,603 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 171 transitions. [2024-11-14 05:20:29,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-14 05:20:29,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:29,605 INFO L215 NwaCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:20:29,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 05:20:29,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:20:29,806 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:20:29,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:29,806 INFO L85 PathProgramCache]: Analyzing trace with hash -634216208, now seen corresponding path program 1 times [2024-11-14 05:20:29,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:29,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334616009] [2024-11-14 05:20:29,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:29,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 10 proven. 84 refuted. 0 times theorem prover too weak. 2258 trivial. 0 not checked. [2024-11-14 05:20:30,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:30,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334616009] [2024-11-14 05:20:30,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334616009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:20:30,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677596058] [2024-11-14 05:20:30,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:30,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:20:30,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:20:30,091 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:20:30,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:20:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:30,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:20:30,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:20:30,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:20:30,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:20:30,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:20:30,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677596058] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:20:30,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [260417418] [2024-11-14 05:20:30,842 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2024-11-14 05:20:30,842 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:20:30,842 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:20:30,842 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:20:30,842 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:20:35,439 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:20:35,440 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:20:59,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [260417418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:20:59,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:20:59,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [5, 5, 5] total 78 [2024-11-14 05:20:59,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582705579] [2024-11-14 05:20:59,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:20:59,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-11-14 05:20:59,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:59,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-11-14 05:20:59,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2133, Invalid=4029, Unknown=0, NotChecked=0, Total=6162 [2024-11-14 05:20:59,581 INFO L87 Difference]: Start difference. First operand 115 states and 171 transitions. Second operand has 72 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:21:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:02,571 INFO L93 Difference]: Finished difference Result 123 states and 181 transitions. [2024-11-14 05:21:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-14 05:21:02,572 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 173 [2024-11-14 05:21:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:02,574 INFO L225 Difference]: With dead ends: 123 [2024-11-14 05:21:02,574 INFO L226 Difference]: Without dead ends: 122 [2024-11-14 05:21:02,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 442 SyntacticMatches, 4 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1143 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=2133, Invalid=4029, Unknown=0, NotChecked=0, Total=6162 [2024-11-14 05:21:02,575 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 47 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:02,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 246 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 05:21:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-14 05:21:02,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-14 05:21:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 66 states have internal predecessors, (72), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 05:21:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 180 transitions. [2024-11-14 05:21:02,610 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 180 transitions. Word has length 173 [2024-11-14 05:21:02,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:02,611 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 180 transitions. [2024-11-14 05:21:02,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:21:02,612 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 180 transitions. [2024-11-14 05:21:02,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-14 05:21:02,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:02,613 INFO L215 NwaCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:02,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 05:21:02,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 05:21:02,814 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:21:02,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1117117495, now seen corresponding path program 1 times [2024-11-14 05:21:02,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855738861] [2024-11-14 05:21:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:02,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:21:03,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:03,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855738861] [2024-11-14 05:21:03,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855738861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:21:03,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732565467] [2024-11-14 05:21:03,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:03,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:03,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:03,075 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:03,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:21:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:03,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:21:03,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:03,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:21:03,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:21:03,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:21:03,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732565467] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:21:03,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1678455868] [2024-11-14 05:21:03,842 INFO L159 IcfgInterpreter]: Started Sifa with 78 locations of interest [2024-11-14 05:21:03,842 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:21:03,842 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:21:03,842 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:21:03,842 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:21:07,930 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:21:07,931 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:21:33,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1678455868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:33,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:21:33,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [8, 6, 6] total 86 [2024-11-14 05:21:33,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562391184] [2024-11-14 05:21:33,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:33,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-11-14 05:21:33,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:33,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-11-14 05:21:33,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2492, Invalid=4990, Unknown=0, NotChecked=0, Total=7482 [2024-11-14 05:21:33,163 INFO L87 Difference]: Start difference. First operand 122 states and 180 transitions. Second operand has 72 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:21:36,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:36,799 INFO L93 Difference]: Finished difference Result 122 states and 180 transitions. [2024-11-14 05:21:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-14 05:21:36,800 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 173 [2024-11-14 05:21:36,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:36,801 INFO L225 Difference]: With dead ends: 122 [2024-11-14 05:21:36,801 INFO L226 Difference]: Without dead ends: 120 [2024-11-14 05:21:36,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 437 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=2492, Invalid=4990, Unknown=0, NotChecked=0, Total=7482 [2024-11-14 05:21:36,802 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 42 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:36,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 267 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 05:21:36,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-14 05:21:36,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2024-11-14 05:21:36,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 59 states have internal predecessors, (65), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 05:21:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 171 transitions. [2024-11-14 05:21:36,829 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 171 transitions. Word has length 173 [2024-11-14 05:21:36,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:36,830 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 171 transitions. [2024-11-14 05:21:36,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:21:36,830 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 171 transitions. [2024-11-14 05:21:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-14 05:21:36,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:36,832 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:36,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 05:21:37,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:37,036 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:21:37,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:37,036 INFO L85 PathProgramCache]: Analyzing trace with hash -422779142, now seen corresponding path program 1 times [2024-11-14 05:21:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:37,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034275380] [2024-11-14 05:21:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:37,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:37,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:21:37,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:37,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034275380] [2024-11-14 05:21:37,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034275380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:21:37,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614051078] [2024-11-14 05:21:37,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:37,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:37,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:37,237 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:37,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 05:21:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:37,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:21:37,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:21:37,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:21:37,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:21:37,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614051078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:21:37,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [715420242] [2024-11-14 05:21:37,964 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2024-11-14 05:21:37,964 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:21:37,964 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:21:37,964 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:21:37,964 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:21:42,447 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:21:42,448 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:05,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [715420242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:05,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:22:05,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [4, 4, 4] total 79 [2024-11-14 05:22:05,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002474701] [2024-11-14 05:22:05,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:05,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-11-14 05:22:05,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:05,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-11-14 05:22:05,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2183, Invalid=3979, Unknown=0, NotChecked=0, Total=6162 [2024-11-14 05:22:05,591 INFO L87 Difference]: Start difference. First operand 114 states and 171 transitions. Second operand has 73 states, 23 states have (on average 1.173913043478261) internal successors, (27), 26 states have internal predecessors, (27), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:22:09,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:09,755 INFO L93 Difference]: Finished difference Result 138 states and 196 transitions. [2024-11-14 05:22:09,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-14 05:22:09,756 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 23 states have (on average 1.173913043478261) internal successors, (27), 26 states have internal predecessors, (27), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 176 [2024-11-14 05:22:09,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:09,757 INFO L225 Difference]: With dead ends: 138 [2024-11-14 05:22:09,757 INFO L226 Difference]: Without dead ends: 116 [2024-11-14 05:22:09,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 450 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1267 ImplicationChecksByTransitivity, 23.2s TimeCoverageRelationStatistics Valid=2183, Invalid=3979, Unknown=0, NotChecked=0, Total=6162 [2024-11-14 05:22:09,759 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 52 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 2177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:09,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 231 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2177 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-14 05:22:09,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-14 05:22:09,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2024-11-14 05:22:09,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 59 states have internal predecessors, (64), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 05:22:09,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 170 transitions. [2024-11-14 05:22:09,787 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 170 transitions. Word has length 176 [2024-11-14 05:22:09,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:09,788 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 170 transitions. [2024-11-14 05:22:09,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 23 states have (on average 1.173913043478261) internal successors, (27), 26 states have internal predecessors, (27), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:22:09,788 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 170 transitions. [2024-11-14 05:22:09,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-14 05:22:09,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:09,789 INFO L215 NwaCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:09,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 05:22:09,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:09,990 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:22:09,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:09,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1855468396, now seen corresponding path program 1 times [2024-11-14 05:22:09,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:09,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466154675] [2024-11-14 05:22:09,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:09,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 10 proven. 84 refuted. 0 times theorem prover too weak. 2258 trivial. 0 not checked. [2024-11-14 05:22:10,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:10,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466154675] [2024-11-14 05:22:10,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466154675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:22:10,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615081279] [2024-11-14 05:22:10,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:10,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:10,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:10,205 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:10,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 05:22:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:10,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:22:10,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:22:10,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:22:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:22:10,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615081279] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:22:10,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1972253640] [2024-11-14 05:22:10,802 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2024-11-14 05:22:10,802 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:22:10,803 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:22:10,803 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:22:10,803 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:22:14,184 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:22:14,189 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:39,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1972253640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:39,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:22:39,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [5, 7, 7] total 86 [2024-11-14 05:22:39,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61744023] [2024-11-14 05:22:39,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:39,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-11-14 05:22:39,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:39,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-11-14 05:22:39,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2406, Invalid=5076, Unknown=0, NotChecked=0, Total=7482 [2024-11-14 05:22:39,360 INFO L87 Difference]: Start difference. First operand 114 states and 170 transitions. Second operand has 73 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:22:43,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:43,442 INFO L93 Difference]: Finished difference Result 124 states and 182 transitions. [2024-11-14 05:22:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-14 05:22:43,443 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 175 [2024-11-14 05:22:43,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:43,445 INFO L225 Difference]: With dead ends: 124 [2024-11-14 05:22:43,445 INFO L226 Difference]: Without dead ends: 123 [2024-11-14 05:22:43,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 441 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1743 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=2406, Invalid=5076, Unknown=0, NotChecked=0, Total=7482 [2024-11-14 05:22:43,446 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 42 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 1909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:43,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 289 Invalid, 1909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-14 05:22:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-14 05:22:43,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2024-11-14 05:22:43,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 65 states have internal predecessors, (71), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 05:22:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 179 transitions. [2024-11-14 05:22:43,471 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 179 transitions. Word has length 175 [2024-11-14 05:22:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:43,471 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 179 transitions. [2024-11-14 05:22:43,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:22:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 179 transitions. [2024-11-14 05:22:43,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-14 05:22:43,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:43,473 INFO L215 NwaCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:43,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 05:22:43,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:43,674 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:22:43,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:43,674 INFO L85 PathProgramCache]: Analyzing trace with hash 485376308, now seen corresponding path program 1 times [2024-11-14 05:22:43,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:43,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401895273] [2024-11-14 05:22:43,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:43,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 10 proven. 84 refuted. 0 times theorem prover too weak. 2258 trivial. 0 not checked. [2024-11-14 05:22:43,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:43,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401895273] [2024-11-14 05:22:43,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401895273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:22:43,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179605714] [2024-11-14 05:22:43,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:43,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:43,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:43,895 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:43,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 05:22:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:44,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:22:44,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:22:44,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:22:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:22:44,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179605714] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:22:44,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1968647965] [2024-11-14 05:22:44,566 INFO L159 IcfgInterpreter]: Started Sifa with 80 locations of interest [2024-11-14 05:22:44,566 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:22:44,567 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:22:44,567 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:22:44,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:22:48,232 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:22:48,233 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:11,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1968647965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:11,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:11,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [5, 5, 5] total 79 [2024-11-14 05:23:11,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781922007] [2024-11-14 05:23:11,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:11,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-11-14 05:23:11,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-11-14 05:23:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2141, Invalid=4179, Unknown=0, NotChecked=0, Total=6320 [2024-11-14 05:23:11,152 INFO L87 Difference]: Start difference. First operand 121 states and 179 transitions. Second operand has 73 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:23:15,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:15,026 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2024-11-14 05:23:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-14 05:23:15,026 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 175 [2024-11-14 05:23:15,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:15,027 INFO L225 Difference]: With dead ends: 129 [2024-11-14 05:23:15,027 INFO L226 Difference]: Without dead ends: 128 [2024-11-14 05:23:15,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 447 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=2141, Invalid=4179, Unknown=0, NotChecked=0, Total=6320 [2024-11-14 05:23:15,029 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 40 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:15,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 315 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-14 05:23:15,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-14 05:23:15,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 121. [2024-11-14 05:23:15,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 65 states have internal predecessors, (71), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 05:23:15,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 179 transitions. [2024-11-14 05:23:15,072 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 179 transitions. Word has length 175 [2024-11-14 05:23:15,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:15,073 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 179 transitions. [2024-11-14 05:23:15,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:23:15,073 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 179 transitions. [2024-11-14 05:23:15,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-14 05:23:15,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:15,075 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:15,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-14 05:23:15,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:15,276 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:23:15,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:15,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1578808374, now seen corresponding path program 1 times [2024-11-14 05:23:15,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:15,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443455981] [2024-11-14 05:23:15,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:15,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:15,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:23:15,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:15,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443455981] [2024-11-14 05:23:15,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443455981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:15,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242616603] [2024-11-14 05:23:15,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:15,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:15,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:15,609 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:15,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 05:23:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:15,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:23:15,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:23:16,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:23:16,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242616603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:16,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [814521504] [2024-11-14 05:23:16,430 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2024-11-14 05:23:16,430 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:16,431 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:16,431 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:16,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:20,605 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:23:20,606 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:43,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [814521504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:43,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:43,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [6, 6, 6] total 86 [2024-11-14 05:23:43,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362497724] [2024-11-14 05:23:43,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:43,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-14 05:23:43,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:43,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-14 05:23:43,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2399, Invalid=5083, Unknown=0, NotChecked=0, Total=7482 [2024-11-14 05:23:43,092 INFO L87 Difference]: Start difference. First operand 121 states and 179 transitions. Second operand has 75 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:23:46,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:46,580 INFO L93 Difference]: Finished difference Result 129 states and 188 transitions. [2024-11-14 05:23:46,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-14 05:23:46,581 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 178 [2024-11-14 05:23:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:46,581 INFO L225 Difference]: With dead ends: 129 [2024-11-14 05:23:46,581 INFO L226 Difference]: Without dead ends: 127 [2024-11-14 05:23:46,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 449 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1808 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=2399, Invalid=5083, Unknown=0, NotChecked=0, Total=7482 [2024-11-14 05:23:46,583 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 46 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:46,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 323 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-14 05:23:46,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-14 05:23:46,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-14 05:23:46,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 64 states have (on average 1.1875) internal successors, (76), 70 states have internal predecessors, (76), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 05:23:46,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 186 transitions. [2024-11-14 05:23:46,611 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 186 transitions. Word has length 178 [2024-11-14 05:23:46,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:46,612 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 186 transitions. [2024-11-14 05:23:46,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:23:46,612 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 186 transitions. [2024-11-14 05:23:46,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-14 05:23:46,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:46,613 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:46,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-14 05:23:46,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 05:23:46,818 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:23:46,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:46,819 INFO L85 PathProgramCache]: Analyzing trace with hash -18976002, now seen corresponding path program 1 times [2024-11-14 05:23:46,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:46,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080085107] [2024-11-14 05:23:46,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:46,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:23:46,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:46,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080085107] [2024-11-14 05:23:46,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080085107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024764591] [2024-11-14 05:23:46,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:46,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:46,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:46,971 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:46,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 05:23:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:47,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:23:47,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:47,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:23:47,265 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:23:47,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024764591] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:47,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [194614398] [2024-11-14 05:23:47,520 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2024-11-14 05:23:47,520 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:47,520 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:47,520 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:47,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:51,029 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:23:51,030 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:24:13,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [194614398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:13,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:24:13,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [4, 4, 4] total 80 [2024-11-14 05:24:13,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920541477] [2024-11-14 05:24:13,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:13,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-14 05:24:13,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:13,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-14 05:24:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2200, Invalid=4280, Unknown=0, NotChecked=0, Total=6480 [2024-11-14 05:24:13,090 INFO L87 Difference]: Start difference. First operand 127 states and 186 transitions. Second operand has 75 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:24:17,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:17,346 INFO L93 Difference]: Finished difference Result 140 states and 202 transitions. [2024-11-14 05:24:17,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-14 05:24:17,347 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 178 [2024-11-14 05:24:17,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:17,348 INFO L225 Difference]: With dead ends: 140 [2024-11-14 05:24:17,348 INFO L226 Difference]: Without dead ends: 138 [2024-11-14 05:24:17,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1403 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=2200, Invalid=4280, Unknown=0, NotChecked=0, Total=6480 [2024-11-14 05:24:17,349 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 44 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:17,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 258 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-14 05:24:17,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-14 05:24:17,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 132. [2024-11-14 05:24:17,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 74 states have internal predecessors, (81), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-14 05:24:17,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 193 transitions. [2024-11-14 05:24:17,377 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 193 transitions. Word has length 178 [2024-11-14 05:24:17,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:17,377 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 193 transitions. [2024-11-14 05:24:17,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:24:17,378 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 193 transitions. [2024-11-14 05:24:17,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-14 05:24:17,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:17,379 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:17,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 05:24:17,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 05:24:17,580 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:24:17,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:17,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1358155722, now seen corresponding path program 1 times [2024-11-14 05:24:17,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:17,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017993552] [2024-11-14 05:24:17,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:17,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:17,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:24:17,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:17,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017993552] [2024-11-14 05:24:17,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017993552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:17,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656633835] [2024-11-14 05:24:17,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:17,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:17,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:17,720 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:17,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 05:24:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:17,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:24:17,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:24:18,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:24:18,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656633835] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:18,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [449732497] [2024-11-14 05:24:18,260 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2024-11-14 05:24:18,260 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:18,260 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:18,260 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:18,260 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:22,008 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:24:22,009 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:24:44,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [449732497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:44,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:24:44,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [4, 4, 4] total 80 [2024-11-14 05:24:44,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389299335] [2024-11-14 05:24:44,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:44,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-14 05:24:44,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:44,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-14 05:24:44,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2200, Invalid=4280, Unknown=0, NotChecked=0, Total=6480 [2024-11-14 05:24:44,919 INFO L87 Difference]: Start difference. First operand 132 states and 193 transitions. Second operand has 75 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:24:50,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:50,234 INFO L93 Difference]: Finished difference Result 140 states and 202 transitions. [2024-11-14 05:24:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-14 05:24:50,235 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 178 [2024-11-14 05:24:50,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:50,236 INFO L225 Difference]: With dead ends: 140 [2024-11-14 05:24:50,236 INFO L226 Difference]: Without dead ends: 138 [2024-11-14 05:24:50,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1401 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=2200, Invalid=4280, Unknown=0, NotChecked=0, Total=6480 [2024-11-14 05:24:50,237 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 48 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 2850 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 2851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:50,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 340 Invalid, 2851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2850 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-14 05:24:50,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-14 05:24:50,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 127. [2024-11-14 05:24:50,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 64 states have (on average 1.1875) internal successors, (76), 70 states have internal predecessors, (76), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 05:24:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 186 transitions. [2024-11-14 05:24:50,285 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 186 transitions. Word has length 178 [2024-11-14 05:24:50,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:50,285 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 186 transitions. [2024-11-14 05:24:50,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:24:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 186 transitions. [2024-11-14 05:24:50,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-14 05:24:50,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:50,287 INFO L215 NwaCegarLoop]: trace histogram [49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:50,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 05:24:50,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 05:24:50,491 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:24:50,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:50,491 INFO L85 PathProgramCache]: Analyzing trace with hash -252915024, now seen corresponding path program 1 times [2024-11-14 05:24:50,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:50,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941980121] [2024-11-14 05:24:50,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:50,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:50,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 4 proven. 44 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:24:50,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:50,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941980121] [2024-11-14 05:24:50,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941980121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:50,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295333671] [2024-11-14 05:24:50,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:50,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:50,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:50,661 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:50,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 05:24:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:50,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:24:50,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:51,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:24:51,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:51,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2024-11-14 05:24:51,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295333671] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:51,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [920560701] [2024-11-14 05:24:51,439 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2024-11-14 05:24:51,439 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:51,440 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:51,440 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:51,440 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:55,001 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:24:55,002 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:25:17,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [920560701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:17,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:25:17,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [5, 9, 9] total 89 [2024-11-14 05:25:17,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142077313] [2024-11-14 05:25:17,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:17,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-11-14 05:25:17,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:17,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-11-14 05:25:17,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2460, Invalid=5550, Unknown=0, NotChecked=0, Total=8010 [2024-11-14 05:25:17,437 INFO L87 Difference]: Start difference. First operand 127 states and 186 transitions. Second operand has 74 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:25:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:20,990 INFO L93 Difference]: Finished difference Result 127 states and 186 transitions. [2024-11-14 05:25:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-14 05:25:20,990 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 177 [2024-11-14 05:25:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:20,991 INFO L225 Difference]: With dead ends: 127 [2024-11-14 05:25:20,991 INFO L226 Difference]: Without dead ends: 126 [2024-11-14 05:25:20,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 442 SyntacticMatches, 4 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1793 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=2460, Invalid=5550, Unknown=0, NotChecked=0, Total=8010 [2024-11-14 05:25:20,993 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 37 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:20,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 257 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 05:25:20,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-14 05:25:21,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2024-11-14 05:25:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 67 states have internal predecessors, (73), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 05:25:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 183 transitions. [2024-11-14 05:25:21,027 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 183 transitions. Word has length 177 [2024-11-14 05:25:21,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:21,027 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 183 transitions. [2024-11-14 05:25:21,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 49 states have call successors, (49), 1 states have call predecessors, (49), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 05:25:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 183 transitions. [2024-11-14 05:25:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-14 05:25:21,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:21,028 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:21,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 05:25:21,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:21,229 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:25:21,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:21,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1208398022, now seen corresponding path program 1 times [2024-11-14 05:25:21,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:21,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709808923] [2024-11-14 05:25:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:21,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 2 proven. 47 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:25:21,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:21,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709808923] [2024-11-14 05:25:21,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709808923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:21,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249343422] [2024-11-14 05:25:21,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:21,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:21,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:21,433 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:21,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 05:25:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:21,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:25:21,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:21,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:25:21,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:25:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:25:22,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249343422] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:25:22,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1142726025] [2024-11-14 05:25:22,107 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2024-11-14 05:25:22,107 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:25:22,107 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:25:22,108 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:25:22,108 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:25:25,585 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:25:25,586 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:25:48,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1142726025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:48,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:25:48,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [8, 6, 6] total 90 [2024-11-14 05:25:48,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005775935] [2024-11-14 05:25:48,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:48,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-11-14 05:25:48,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:48,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-11-14 05:25:48,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2525, Invalid=5665, Unknown=0, NotChecked=0, Total=8190 [2024-11-14 05:25:48,796 INFO L87 Difference]: Start difference. First operand 124 states and 183 transitions. Second operand has 76 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:25:53,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:53,135 INFO L93 Difference]: Finished difference Result 137 states and 199 transitions. [2024-11-14 05:25:53,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-14 05:25:53,136 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 180 [2024-11-14 05:25:53,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:53,137 INFO L225 Difference]: With dead ends: 137 [2024-11-14 05:25:53,137 INFO L226 Difference]: Without dead ends: 135 [2024-11-14 05:25:53,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1806 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=2525, Invalid=5665, Unknown=0, NotChecked=0, Total=8190 [2024-11-14 05:25:53,139 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 43 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 2575 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:53,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 369 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2575 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-14 05:25:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-14 05:25:53,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2024-11-14 05:25:53,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 71 states have internal predecessors, (78), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-14 05:25:53,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 190 transitions. [2024-11-14 05:25:53,182 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 190 transitions. Word has length 180 [2024-11-14 05:25:53,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:53,182 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 190 transitions. [2024-11-14 05:25:53,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:25:53,183 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 190 transitions. [2024-11-14 05:25:53,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-14 05:25:53,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:53,184 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:53,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 05:25:53,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:53,388 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:25:53,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:53,388 INFO L85 PathProgramCache]: Analyzing trace with hash 330079858, now seen corresponding path program 1 times [2024-11-14 05:25:53,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:53,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476405081] [2024-11-14 05:25:53,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:53,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:25:53,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:53,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476405081] [2024-11-14 05:25:53,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476405081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:53,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656476151] [2024-11-14 05:25:53,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:53,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:53,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:53,566 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:53,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 05:25:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:53,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:25:53,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:25:53,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:25:54,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:25:54,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656476151] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:25:54,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1515770669] [2024-11-14 05:25:54,134 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2024-11-14 05:25:54,134 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:25:54,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:25:54,135 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:25:54,135 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:25:57,406 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:25:57,406 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:26:21,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1515770669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:21,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:26:21,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [6, 6, 6] total 87 [2024-11-14 05:26:21,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384118810] [2024-11-14 05:26:21,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:21,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-11-14 05:26:21,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:21,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-11-14 05:26:21,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2410, Invalid=5246, Unknown=0, NotChecked=0, Total=7656 [2024-11-14 05:26:21,826 INFO L87 Difference]: Start difference. First operand 129 states and 190 transitions. Second operand has 76 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:26:28,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:28,076 INFO L93 Difference]: Finished difference Result 137 states and 199 transitions. [2024-11-14 05:26:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-14 05:26:28,076 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 180 [2024-11-14 05:26:28,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:28,077 INFO L225 Difference]: With dead ends: 137 [2024-11-14 05:26:28,077 INFO L226 Difference]: Without dead ends: 135 [2024-11-14 05:26:28,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 454 SyntacticMatches, 4 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1886 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=2410, Invalid=5246, Unknown=0, NotChecked=0, Total=7656 [2024-11-14 05:26:28,078 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 40 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 3342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:28,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 396 Invalid, 3342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-14 05:26:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-14 05:26:28,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 124. [2024-11-14 05:26:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 67 states have internal predecessors, (73), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 05:26:28,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 183 transitions. [2024-11-14 05:26:28,107 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 183 transitions. Word has length 180 [2024-11-14 05:26:28,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:28,107 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 183 transitions. [2024-11-14 05:26:28,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:26:28,107 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 183 transitions. [2024-11-14 05:26:28,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-14 05:26:28,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:28,108 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:28,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 05:26:28,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-14 05:26:28,309 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:26:28,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:28,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1267704518, now seen corresponding path program 1 times [2024-11-14 05:26:28,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:28,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145652874] [2024-11-14 05:26:28,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:28,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:28,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:26:28,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:26:28,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145652874] [2024-11-14 05:26:28,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145652874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:26:28,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731457120] [2024-11-14 05:26:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:28,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:28,451 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:26:28,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 05:26:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:28,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:26:28,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:26:28,743 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:26:28,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731457120] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:26:28,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1000416224] [2024-11-14 05:26:28,985 INFO L159 IcfgInterpreter]: Started Sifa with 83 locations of interest [2024-11-14 05:26:28,985 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:26:28,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:26:28,985 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:26:28,986 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:26:32,760 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:26:32,761 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:26:56,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1000416224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:56,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:26:56,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [4, 4, 4] total 81 [2024-11-14 05:26:56,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576624319] [2024-11-14 05:26:56,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:56,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-11-14 05:26:56,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:56,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-11-14 05:26:56,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2207, Invalid=4435, Unknown=0, NotChecked=0, Total=6642 [2024-11-14 05:26:56,732 INFO L87 Difference]: Start difference. First operand 124 states and 183 transitions. Second operand has 76 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:27:01,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:01,220 INFO L93 Difference]: Finished difference Result 130 states and 190 transitions. [2024-11-14 05:27:01,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-14 05:27:01,220 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 180 [2024-11-14 05:27:01,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:01,222 INFO L225 Difference]: With dead ends: 130 [2024-11-14 05:27:01,222 INFO L226 Difference]: Without dead ends: 128 [2024-11-14 05:27:01,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 458 SyntacticMatches, 4 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1470 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=2207, Invalid=4435, Unknown=0, NotChecked=0, Total=6642 [2024-11-14 05:27:01,225 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 43 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:01,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 239 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-14 05:27:01,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-14 05:27:01,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2024-11-14 05:27:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 67 states have internal predecessors, (73), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 05:27:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 183 transitions. [2024-11-14 05:27:01,266 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 183 transitions. Word has length 180 [2024-11-14 05:27:01,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:01,266 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 183 transitions. [2024-11-14 05:27:01,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:27:01,267 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 183 transitions. [2024-11-14 05:27:01,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-14 05:27:01,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:01,268 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:27:01,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 05:27:01,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-14 05:27:01,469 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:27:01,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:01,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1394808675, now seen corresponding path program 1 times [2024-11-14 05:27:01,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:01,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462971172] [2024-11-14 05:27:01,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:01,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:01,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:27:01,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:01,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462971172] [2024-11-14 05:27:01,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462971172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:27:01,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851757192] [2024-11-14 05:27:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:01,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:01,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:27:01,666 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:27:01,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 05:27:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:01,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:27:01,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:27:01,995 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:27:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:27:02,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851757192] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:27:02,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1882071839] [2024-11-14 05:27:02,299 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2024-11-14 05:27:02,299 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:27:02,299 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:27:02,299 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:27:02,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:27:05,884 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:27:05,885 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:27:31,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1882071839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:27:31,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:27:31,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [7, 7, 7] total 90 [2024-11-14 05:27:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836996189] [2024-11-14 05:27:31,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:27:31,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-14 05:27:31,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:27:31,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-14 05:27:31,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2435, Invalid=5755, Unknown=0, NotChecked=0, Total=8190 [2024-11-14 05:27:31,206 INFO L87 Difference]: Start difference. First operand 124 states and 183 transitions. Second operand has 77 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:27:36,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:36,622 INFO L93 Difference]: Finished difference Result 134 states and 195 transitions. [2024-11-14 05:27:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-14 05:27:36,623 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 182 [2024-11-14 05:27:36,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:36,624 INFO L225 Difference]: With dead ends: 134 [2024-11-14 05:27:36,624 INFO L226 Difference]: Without dead ends: 133 [2024-11-14 05:27:36,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 458 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2147 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=2435, Invalid=5755, Unknown=0, NotChecked=0, Total=8190 [2024-11-14 05:27:36,625 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 41 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:36,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 348 Invalid, 2794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-14 05:27:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-14 05:27:36,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-14 05:27:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 75 states have internal predecessors, (82), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-14 05:27:36,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 194 transitions. [2024-11-14 05:27:36,699 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 194 transitions. Word has length 182 [2024-11-14 05:27:36,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:36,699 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 194 transitions. [2024-11-14 05:27:36,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:27:36,699 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 194 transitions. [2024-11-14 05:27:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-14 05:27:36,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:36,700 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:27:36,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-14 05:27:36,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:36,901 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:27:36,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:36,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1265368219, now seen corresponding path program 1 times [2024-11-14 05:27:36,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:36,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487284421] [2024-11-14 05:27:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:36,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:27:37,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:37,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487284421] [2024-11-14 05:27:37,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487284421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:27:37,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099278358] [2024-11-14 05:27:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:37,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:37,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:27:37,040 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:27:37,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 05:27:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:37,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:27:37,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:37,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:27:37,387 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:27:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:27:37,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099278358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:27:37,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [776922508] [2024-11-14 05:27:37,671 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2024-11-14 05:27:37,671 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:27:37,672 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:27:37,672 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:27:37,672 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:27:41,448 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:27:41,449 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:28:08,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [776922508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:08,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:28:08,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [5, 5, 5] total 82 [2024-11-14 05:28:08,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165373390] [2024-11-14 05:28:08,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:08,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-14 05:28:08,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:08,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-14 05:28:08,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2155, Invalid=4651, Unknown=0, NotChecked=0, Total=6806 [2024-11-14 05:28:08,237 INFO L87 Difference]: Start difference. First operand 133 states and 194 transitions. Second operand has 77 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:28:14,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:14,784 INFO L93 Difference]: Finished difference Result 148 states and 213 transitions. [2024-11-14 05:28:14,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-14 05:28:14,785 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 182 [2024-11-14 05:28:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:14,786 INFO L225 Difference]: With dead ends: 148 [2024-11-14 05:28:14,786 INFO L226 Difference]: Without dead ends: 147 [2024-11-14 05:28:14,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 463 SyntacticMatches, 5 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1484 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=2155, Invalid=4651, Unknown=0, NotChecked=0, Total=6806 [2024-11-14 05:28:14,787 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 48 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 2926 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:14,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 245 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2926 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-14 05:28:14,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-14 05:28:14,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 138. [2024-11-14 05:28:14,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 79 states have internal predecessors, (87), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-14 05:28:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 201 transitions. [2024-11-14 05:28:14,848 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 201 transitions. Word has length 182 [2024-11-14 05:28:14,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:14,848 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 201 transitions. [2024-11-14 05:28:14,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:28:14,849 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 201 transitions. [2024-11-14 05:28:14,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-14 05:28:14,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:14,850 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:14,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-14 05:28:15,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-14 05:28:15,051 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:28:15,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:15,051 INFO L85 PathProgramCache]: Analyzing trace with hash -256875363, now seen corresponding path program 1 times [2024-11-14 05:28:15,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:15,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811320450] [2024-11-14 05:28:15,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:15,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:28:15,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:15,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811320450] [2024-11-14 05:28:15,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811320450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:28:15,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808743871] [2024-11-14 05:28:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:15,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:28:15,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:28:15,197 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:28:15,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 05:28:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:15,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:28:15,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:28:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:28:15,587 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:28:15,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:28:15,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808743871] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:28:15,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1528030602] [2024-11-14 05:28:15,902 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2024-11-14 05:28:15,902 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:28:15,902 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:28:15,902 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:28:15,902 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:28:19,987 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:28:19,988 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:28:48,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1528030602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:28:48,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:28:48,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [5, 5, 5] total 81 [2024-11-14 05:28:48,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527284368] [2024-11-14 05:28:48,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:28:48,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-14 05:28:48,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:48,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-14 05:28:48,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2091, Invalid=4551, Unknown=0, NotChecked=0, Total=6642 [2024-11-14 05:28:48,855 INFO L87 Difference]: Start difference. First operand 138 states and 201 transitions. Second operand has 77 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:28:54,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:54,756 INFO L93 Difference]: Finished difference Result 148 states and 213 transitions. [2024-11-14 05:28:54,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-14 05:28:54,757 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 182 [2024-11-14 05:28:54,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:54,759 INFO L225 Difference]: With dead ends: 148 [2024-11-14 05:28:54,759 INFO L226 Difference]: Without dead ends: 147 [2024-11-14 05:28:54,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 463 SyntacticMatches, 6 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1324 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=2091, Invalid=4551, Unknown=0, NotChecked=0, Total=6642 [2024-11-14 05:28:54,760 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 47 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:54,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 243 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2620 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-14 05:28:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-14 05:28:54,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 133. [2024-11-14 05:28:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 75 states have internal predecessors, (82), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-14 05:28:54,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 194 transitions. [2024-11-14 05:28:54,798 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 194 transitions. Word has length 182 [2024-11-14 05:28:54,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:54,799 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 194 transitions. [2024-11-14 05:28:54,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:28:54,799 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 194 transitions. [2024-11-14 05:28:54,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-14 05:28:54,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:54,800 INFO L215 NwaCegarLoop]: trace histogram [50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:28:54,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 05:28:55,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 05:28:55,002 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:28:55,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:55,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1354340982, now seen corresponding path program 1 times [2024-11-14 05:28:55,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:55,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841717993] [2024-11-14 05:28:55,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:55,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:28:55,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:55,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841717993] [2024-11-14 05:28:55,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841717993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:28:55,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005423109] [2024-11-14 05:28:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:55,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:28:55,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:28:55,298 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:28:55,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 05:28:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:28:55,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:28:55,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:28:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:28:55,763 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:28:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2024-11-14 05:28:56,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005423109] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:28:56,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1100956986] [2024-11-14 05:28:56,144 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2024-11-14 05:28:56,144 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:28:56,144 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:28:56,144 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:28:56,144 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:29:00,578 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:29:00,579 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:29:31,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1100956986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:29:31,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:29:31,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [10, 6, 6] total 93 [2024-11-14 05:29:31,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174079364] [2024-11-14 05:29:31,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:29:31,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2024-11-14 05:29:31,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:29:31,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2024-11-14 05:29:31,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2579, Invalid=5977, Unknown=0, NotChecked=0, Total=8556 [2024-11-14 05:29:31,442 INFO L87 Difference]: Start difference. First operand 133 states and 194 transitions. Second operand has 76 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:29:37,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:29:37,723 INFO L93 Difference]: Finished difference Result 149 states and 210 transitions. [2024-11-14 05:29:37,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-14 05:29:37,724 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 182 [2024-11-14 05:29:37,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:29:37,726 INFO L225 Difference]: With dead ends: 149 [2024-11-14 05:29:37,726 INFO L226 Difference]: Without dead ends: 125 [2024-11-14 05:29:37,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 460 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1815 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=2579, Invalid=5977, Unknown=0, NotChecked=0, Total=8556 [2024-11-14 05:29:37,728 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 36 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 2844 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:29:37,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 273 Invalid, 2844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2844 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-14 05:29:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-14 05:29:37,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-14 05:29:37,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 68 states have internal predecessors, (74), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 05:29:37,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 184 transitions. [2024-11-14 05:29:37,761 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 184 transitions. Word has length 182 [2024-11-14 05:29:37,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:29:37,761 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 184 transitions. [2024-11-14 05:29:37,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-14 05:29:37,762 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 184 transitions. [2024-11-14 05:29:37,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-14 05:29:37,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:29:37,763 INFO L215 NwaCegarLoop]: trace histogram [51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:29:37,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 05:29:37,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 05:29:37,964 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 05:29:37,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:29:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1014073161, now seen corresponding path program 1 times [2024-11-14 05:29:37,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:29:37,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376811821] [2024-11-14 05:29:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:29:37,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:29:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:29:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 8 proven. 42 refuted. 0 times theorem prover too weak. 2500 trivial. 0 not checked. [2024-11-14 05:29:38,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:29:38,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376811821] [2024-11-14 05:29:38,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376811821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:29:38,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973378291] [2024-11-14 05:29:38,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:29:38,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:29:38,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:29:38,152 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:29:38,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_850d02bc-6dda-4527-8700-05e410fae80c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 05:29:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:29:38,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:29:38,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:29:38,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 8 proven. 42 refuted. 0 times theorem prover too weak. 2500 trivial. 0 not checked. [2024-11-14 05:29:38,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:29:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 8 proven. 42 refuted. 0 times theorem prover too weak. 2500 trivial. 0 not checked. [2024-11-14 05:29:38,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973378291] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:29:38,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2068658232] [2024-11-14 05:29:38,953 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2024-11-14 05:29:38,953 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:29:38,953 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:29:38,953 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:29:38,953 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:29:43,724 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:29:43,730 INFO L180 IcfgInterpreter]: Interpretation finished