./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound20.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_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/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_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/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_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/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 070b005151a155625f2a1d89ebf21c03a6d381af2d7b663a2fe06061e79da5f4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:47:31,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:47:31,120 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 04:47:31,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:47:31,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:47:31,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:47:31,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:47:31,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:47:31,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:47:31,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:47:31,164 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:47:31,164 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:47:31,164 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:47:31,165 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:47:31,165 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:47:31,165 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:47:31,165 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:47:31,165 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:47:31,165 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:47:31,166 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:47:31,166 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:47:31,166 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:47:31,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:47:31,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:47:31,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:47:31,168 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:47:31,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:47:31,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:47:31,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:47:31,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:47:31,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:47:31,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:47:31,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:47:31,169 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:47:31,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:47:31,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:47:31,170 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:47:31,170 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:47:31,170 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_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/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 -> 070b005151a155625f2a1d89ebf21c03a6d381af2d7b663a2fe06061e79da5f4 [2024-11-14 04:47:31,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:47:31,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:47:31,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:47:31,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:47:31,475 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:47:31,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound20.c Unable to find full path for "g++" [2024-11-14 04:47:33,313 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:47:33,527 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:47:33,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound20.c [2024-11-14 04:47:33,542 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/data/01d229732/a5fdd5f1d05749418e345cd14e66805f/FLAG9f8853f04 [2024-11-14 04:47:33,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/data/01d229732/a5fdd5f1d05749418e345cd14e66805f [2024-11-14 04:47:33,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:47:33,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:47:33,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:47:33,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:47:33,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:47:33,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab1383f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33, skipping insertion in model container [2024-11-14 04:47:33,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:47:33,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:47:33,800 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:47:33,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:47:33,847 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:47:33,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33 WrapperNode [2024-11-14 04:47:33,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:47:33,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:47:33,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:47:33,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:47:33,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,897 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2024-11-14 04:47:33,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:47:33,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:47:33,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:47:33,898 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:47:33,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:47:33,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:47:33,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:47:33,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:47:33,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (1/1) ... [2024-11-14 04:47:33,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:47:33,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:47:33,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:47:33,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:47:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:47:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:47:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:47:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:47:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:47:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:47:34,066 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:47:34,069 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:47:34,494 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2024-11-14 04:47:34,494 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:47:34,571 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:47:34,571 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:47:34,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:47:34 BoogieIcfgContainer [2024-11-14 04:47:34,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:47:34,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:47:34,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:47:34,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:47:34,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:47:33" (1/3) ... [2024-11-14 04:47:34,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147232e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:47:34, skipping insertion in model container [2024-11-14 04:47:34,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:47:33" (2/3) ... [2024-11-14 04:47:34,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147232e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:47:34, skipping insertion in model container [2024-11-14 04:47:34,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:47:34" (3/3) ... [2024-11-14 04:47:34,584 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound20.c [2024-11-14 04:47:34,602 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:47:34,605 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG sqrt1-ll_valuebound20.c that has 2 procedures, 113 locations, 1 initial locations, 1 loop locations, and 50 error locations. [2024-11-14 04:47:34,668 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:47:34,685 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;@6cdc44bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:47:34,685 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-14 04:47:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 105 states have internal predecessors, (107), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:47:34,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 04:47:34,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:34,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 04:47:34,697 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:34,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:34,701 INFO L85 PathProgramCache]: Analyzing trace with hash 190823, now seen corresponding path program 1 times [2024-11-14 04:47:34,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:34,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184190747] [2024-11-14 04:47:34,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:34,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:47:34,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:34,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184190747] [2024-11-14 04:47:34,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184190747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:34,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:47:34,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 04:47:34,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823819429] [2024-11-14 04:47:34,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:34,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:47:34,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:34,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:47:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:47:34,894 INFO L87 Difference]: Start difference. First operand has 113 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 105 states have internal predecessors, (107), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:47:35,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:35,101 INFO L93 Difference]: Finished difference Result 250 states and 280 transitions. [2024-11-14 04:47:35,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:47:35,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 04:47:35,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:35,113 INFO L225 Difference]: With dead ends: 250 [2024-11-14 04:47:35,113 INFO L226 Difference]: Without dead ends: 181 [2024-11-14 04:47:35,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:47:35,121 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 69 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:35,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 158 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:47:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-14 04:47:35,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 146. [2024-11-14 04:47:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 90 states have (on average 1.6444444444444444) internal successors, (148), 135 states have internal predecessors, (148), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 04:47:35,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 166 transitions. [2024-11-14 04:47:35,193 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 166 transitions. Word has length 3 [2024-11-14 04:47:35,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:35,193 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 166 transitions. [2024-11-14 04:47:35,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:47:35,194 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 166 transitions. [2024-11-14 04:47:35,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 04:47:35,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:35,198 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:47:35,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:47:35,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:35,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:35,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1724489646, now seen corresponding path program 1 times [2024-11-14 04:47:35,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:35,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686449674] [2024-11-14 04:47:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:35,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:47:35,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [211931541] [2024-11-14 04:47:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:35,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:35,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:47:35,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:47:35,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:47:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:35,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:47:35,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:47:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:47:35,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:47:35,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:35,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686449674] [2024-11-14 04:47:35,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:47:35,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211931541] [2024-11-14 04:47:35,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211931541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:35,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:47:35,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:47:35,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198946604] [2024-11-14 04:47:35,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:35,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:47:35,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:35,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:47:35,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:47:35,415 INFO L87 Difference]: Start difference. First operand 146 states and 166 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:47:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:35,622 INFO L93 Difference]: Finished difference Result 173 states and 194 transitions. [2024-11-14 04:47:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:47:35,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-14 04:47:35,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:35,626 INFO L225 Difference]: With dead ends: 173 [2024-11-14 04:47:35,626 INFO L226 Difference]: Without dead ends: 165 [2024-11-14 04:47:35,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:47:35,627 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 41 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:35,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 138 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:47:35,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-14 04:47:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 157. [2024-11-14 04:47:35,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 100 states have (on average 1.59) internal successors, (159), 145 states have internal predecessors, (159), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:47:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 179 transitions. [2024-11-14 04:47:35,650 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 179 transitions. Word has length 20 [2024-11-14 04:47:35,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:35,650 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 179 transitions. [2024-11-14 04:47:35,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:47:35,650 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 179 transitions. [2024-11-14 04:47:35,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 04:47:35,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:35,654 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:47:35,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:47:35,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:35,855 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:35,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:35,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1919571549, now seen corresponding path program 1 times [2024-11-14 04:47:35,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:35,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325027977] [2024-11-14 04:47:35,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:35,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:36,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:47:36,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:36,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325027977] [2024-11-14 04:47:36,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325027977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:36,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:47:36,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:47:36,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783050318] [2024-11-14 04:47:36,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:36,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:47:36,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:36,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:47:36,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:47:36,009 INFO L87 Difference]: Start difference. First operand 157 states and 179 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:47:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:36,163 INFO L93 Difference]: Finished difference Result 173 states and 190 transitions. [2024-11-14 04:47:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:47:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-14 04:47:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:36,165 INFO L225 Difference]: With dead ends: 173 [2024-11-14 04:47:36,165 INFO L226 Difference]: Without dead ends: 163 [2024-11-14 04:47:36,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:47:36,166 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 38 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:36,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 152 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:47:36,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-14 04:47:36,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2024-11-14 04:47:36,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.5048543689320388) internal successors, (155), 148 states have internal predecessors, (155), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:47:36,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 175 transitions. [2024-11-14 04:47:36,188 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 175 transitions. Word has length 21 [2024-11-14 04:47:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:36,189 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 175 transitions. [2024-11-14 04:47:36,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:47:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 175 transitions. [2024-11-14 04:47:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 04:47:36,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:36,190 INFO L215 NwaCegarLoop]: trace histogram [2, 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 04:47:36,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:47:36,190 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:36,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:36,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1533453454, now seen corresponding path program 1 times [2024-11-14 04:47:36,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:36,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836846872] [2024-11-14 04:47:36,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:36,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:47:36,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:36,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836846872] [2024-11-14 04:47:36,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836846872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:36,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:47:36,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:47:36,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355175581] [2024-11-14 04:47:36,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:36,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:47:36,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:36,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:47:36,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:47:36,359 INFO L87 Difference]: Start difference. First operand 160 states and 175 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:47:36,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:36,575 INFO L93 Difference]: Finished difference Result 165 states and 180 transitions. [2024-11-14 04:47:36,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:47:36,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-14 04:47:36,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:36,577 INFO L225 Difference]: With dead ends: 165 [2024-11-14 04:47:36,577 INFO L226 Difference]: Without dead ends: 163 [2024-11-14 04:47:36,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:47:36,580 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 47 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:36,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 197 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:47:36,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-14 04:47:36,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2024-11-14 04:47:36,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 148 states have internal predecessors, (153), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:47:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 173 transitions. [2024-11-14 04:47:36,605 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 173 transitions. Word has length 24 [2024-11-14 04:47:36,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:36,606 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 173 transitions. [2024-11-14 04:47:36,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:47:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 173 transitions. [2024-11-14 04:47:36,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 04:47:36,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:36,607 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 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 04:47:36,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:47:36,607 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:36,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:36,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1193191626, now seen corresponding path program 1 times [2024-11-14 04:47:36,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:36,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159242402] [2024-11-14 04:47:36,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:36,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:47:36,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:36,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159242402] [2024-11-14 04:47:36,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159242402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:36,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:47:36,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:47:36,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745264453] [2024-11-14 04:47:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:36,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:47:36,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:36,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:47:36,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:47:36,872 INFO L87 Difference]: Start difference. First operand 160 states and 173 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:47:37,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:37,028 INFO L93 Difference]: Finished difference Result 165 states and 174 transitions. [2024-11-14 04:47:37,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:47:37,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-14 04:47:37,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:37,029 INFO L225 Difference]: With dead ends: 165 [2024-11-14 04:47:37,029 INFO L226 Difference]: Without dead ends: 137 [2024-11-14 04:47:37,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:47:37,033 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 29 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:37,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 134 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:47:37,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-14 04:47:37,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-14 04:47:37,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.5609756097560976) internal successors, (128), 127 states have internal predecessors, (128), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 04:47:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2024-11-14 04:47:37,042 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 28 [2024-11-14 04:47:37,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:37,043 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 144 transitions. [2024-11-14 04:47:37,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 04:47:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2024-11-14 04:47:37,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 04:47:37,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:37,044 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:47:37,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:47:37,044 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:37,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:37,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1025784750, now seen corresponding path program 1 times [2024-11-14 04:47:37,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:37,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287461618] [2024-11-14 04:47:37,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:37,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:47:37,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:37,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287461618] [2024-11-14 04:47:37,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287461618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:37,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:47:37,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:47:37,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115084482] [2024-11-14 04:47:37,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:37,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:47:37,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:37,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:47:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:47:37,238 INFO L87 Difference]: Start difference. First operand 137 states and 144 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:47:37,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:37,412 INFO L93 Difference]: Finished difference Result 140 states and 148 transitions. [2024-11-14 04:47:37,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:47:37,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-11-14 04:47:37,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:37,415 INFO L225 Difference]: With dead ends: 140 [2024-11-14 04:47:37,415 INFO L226 Difference]: Without dead ends: 139 [2024-11-14 04:47:37,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:47:37,417 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 1 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:37,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 193 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:47:37,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-14 04:47:37,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 138. [2024-11-14 04:47:37,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 83 states have (on average 1.5542168674698795) internal successors, (129), 128 states have internal predecessors, (129), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 04:47:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 145 transitions. [2024-11-14 04:47:37,435 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 145 transitions. Word has length 39 [2024-11-14 04:47:37,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:37,435 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 145 transitions. [2024-11-14 04:47:37,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:47:37,435 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2024-11-14 04:47:37,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 04:47:37,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:37,436 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:47:37,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:47:37,436 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:37,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:37,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1734556067, now seen corresponding path program 1 times [2024-11-14 04:47:37,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:37,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482259637] [2024-11-14 04:47:37,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:37,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:47:37,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:37,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482259637] [2024-11-14 04:47:37,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482259637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:37,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:47:37,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:47:37,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085529811] [2024-11-14 04:47:37,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:37,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:47:37,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:37,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:47:37,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:47:37,570 INFO L87 Difference]: Start difference. First operand 138 states and 145 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:47:37,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:37,704 INFO L93 Difference]: Finished difference Result 140 states and 147 transitions. [2024-11-14 04:47:37,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:47:37,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-14 04:47:37,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:37,706 INFO L225 Difference]: With dead ends: 140 [2024-11-14 04:47:37,706 INFO L226 Difference]: Without dead ends: 139 [2024-11-14 04:47:37,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:47:37,707 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:37,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:47:37,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-14 04:47:37,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-14 04:47:37,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.5476190476190477) internal successors, (130), 129 states have internal predecessors, (130), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 04:47:37,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 146 transitions. [2024-11-14 04:47:37,723 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 146 transitions. Word has length 40 [2024-11-14 04:47:37,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:37,723 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 146 transitions. [2024-11-14 04:47:37,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:47:37,724 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 146 transitions. [2024-11-14 04:47:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 04:47:37,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:37,740 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:47:37,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 04:47:37,740 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:37,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:37,740 INFO L85 PathProgramCache]: Analyzing trace with hash -461068033, now seen corresponding path program 1 times [2024-11-14 04:47:37,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:37,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422947682] [2024-11-14 04:47:37,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:37,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:47:37,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:37,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422947682] [2024-11-14 04:47:37,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422947682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:47:37,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813431432] [2024-11-14 04:47:37,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:37,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:37,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:47:37,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:47:37,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:47:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:37,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:47:37,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:47:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:47:37,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:47:37,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813431432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:37,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:47:37,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-14 04:47:37,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920429226] [2024-11-14 04:47:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:37,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:47:37,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:47:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:47:37,985 INFO L87 Difference]: Start difference. First operand 139 states and 146 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:47:38,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:38,107 INFO L93 Difference]: Finished difference Result 139 states and 146 transitions. [2024-11-14 04:47:38,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:47:38,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-14 04:47:38,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:38,108 INFO L225 Difference]: With dead ends: 139 [2024-11-14 04:47:38,109 INFO L226 Difference]: Without dead ends: 130 [2024-11-14 04:47:38,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:47:38,110 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:38,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 108 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:47:38,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-14 04:47:38,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-11-14 04:47:38,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 120 states have internal predecessors, (121), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 04:47:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 137 transitions. [2024-11-14 04:47:38,124 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 137 transitions. Word has length 42 [2024-11-14 04:47:38,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:38,124 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 137 transitions. [2024-11-14 04:47:38,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:47:38,124 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 137 transitions. [2024-11-14 04:47:38,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 04:47:38,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:38,128 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:47:38,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 04:47:38,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 04:47:38,329 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:38,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:38,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1408207084, now seen corresponding path program 1 times [2024-11-14 04:47:38,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:38,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543848054] [2024-11-14 04:47:38,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:38,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:47:38,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:38,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543848054] [2024-11-14 04:47:38,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543848054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:47:38,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664345603] [2024-11-14 04:47:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:38,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:38,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:47:38,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:47:38,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:47:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:38,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:47:38,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:47:38,560 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:47:38,561 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:47:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:47:38,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664345603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:47:38,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1718999443] [2024-11-14 04:47:38,699 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-14 04:47:38,699 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:47:38,702 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:47:38,707 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:47:38,707 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:47:42,120 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:47:42,122 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:47:43,779 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3314#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~n~0#1| 20) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807))' at error location [2024-11-14 04:47:43,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:47:43,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:47:43,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-14 04:47:43,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904815386] [2024-11-14 04:47:43,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:47:43,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:47:43,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:43,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:47:43,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:47:43,782 INFO L87 Difference]: Start difference. First operand 130 states and 137 transitions. Second operand has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 04:47:43,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:43,973 INFO L93 Difference]: Finished difference Result 225 states and 254 transitions. [2024-11-14 04:47:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:47:43,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 43 [2024-11-14 04:47:43,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:43,975 INFO L225 Difference]: With dead ends: 225 [2024-11-14 04:47:43,975 INFO L226 Difference]: Without dead ends: 216 [2024-11-14 04:47:43,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 100 SyntacticMatches, 11 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:47:43,976 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 268 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:43,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 197 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:47:43,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-14 04:47:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 121. [2024-11-14 04:47:43,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 111 states have internal predecessors, (112), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 04:47:43,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 128 transitions. [2024-11-14 04:47:43,985 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 128 transitions. Word has length 43 [2024-11-14 04:47:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:43,985 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 128 transitions. [2024-11-14 04:47:43,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 04:47:43,986 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 128 transitions. [2024-11-14 04:47:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 04:47:43,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:43,987 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:47:44,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 04:47:44,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 04:47:44,191 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:44,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:44,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1315898868, now seen corresponding path program 1 times [2024-11-14 04:47:44,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:44,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564564422] [2024-11-14 04:47:44,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:44,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:47:44,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409192402] [2024-11-14 04:47:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:44,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:44,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:47:44,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:47:44,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:47:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:44,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:47:44,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:47:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:47:44,354 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:47:44,518 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:47:44,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:44,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564564422] [2024-11-14 04:47:44,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:47:44,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409192402] [2024-11-14 04:47:44,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409192402] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:47:44,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1021021868] [2024-11-14 04:47:44,521 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-14 04:47:44,525 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:47:44,525 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:47:44,525 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:47:44,525 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:47:46,563 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:47:46,564 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:47:48,393 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4030#(and (<= 1 |ULTIMATE.start_main_~s~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~t~0#1| 9223372036854775806) (<= 1 |ULTIMATE.start_main_~t~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 20) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~a~0#1_84| Int)) (and (<= 9223372036854775807 (+ (* |v_ULTIMATE.start_main_~a~0#1_84| |v_ULTIMATE.start_main_~a~0#1_84|) (* 2 |v_ULTIMATE.start_main_~a~0#1_84|))) (<= |v_ULTIMATE.start_main_~a~0#1_84| 4611686018427387903) (<= 0 |v_ULTIMATE.start_main_~a~0#1_84|))) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 04:47:48,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:47:48,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:47:48,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-14 04:47:48,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370793790] [2024-11-14 04:47:48,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:47:48,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:47:48,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:48,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:47:48,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-14 04:47:48,396 INFO L87 Difference]: Start difference. First operand 121 states and 128 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 04:47:48,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:48,622 INFO L93 Difference]: Finished difference Result 300 states and 322 transitions. [2024-11-14 04:47:48,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:47:48,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2024-11-14 04:47:48,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:48,626 INFO L225 Difference]: With dead ends: 300 [2024-11-14 04:47:48,626 INFO L226 Difference]: Without dead ends: 298 [2024-11-14 04:47:48,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 128 SyntacticMatches, 14 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:47:48,630 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 237 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:48,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 289 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:47:48,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-14 04:47:48,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 198. [2024-11-14 04:47:48,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 155 states have (on average 1.3806451612903226) internal successors, (214), 181 states have internal predecessors, (214), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 04:47:48,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 244 transitions. [2024-11-14 04:47:48,643 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 244 transitions. Word has length 54 [2024-11-14 04:47:48,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:48,643 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 244 transitions. [2024-11-14 04:47:48,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 04:47:48,644 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 244 transitions. [2024-11-14 04:47:48,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 04:47:48,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:48,645 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:47:48,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:47:48,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 04:47:48,849 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:48,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:48,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2101607658, now seen corresponding path program 1 times [2024-11-14 04:47:48,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:48,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316760102] [2024-11-14 04:47:48,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:48,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:47:48,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541619384] [2024-11-14 04:47:48,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:48,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:48,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:47:48,867 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:47:48,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:47:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:48,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:47:48,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:47:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:47:49,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:47:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:47:49,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:49,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316760102] [2024-11-14 04:47:49,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:47:49,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541619384] [2024-11-14 04:47:49,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541619384] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:47:49,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1899505293] [2024-11-14 04:47:49,175 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-14 04:47:49,177 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:47:49,178 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:47:49,178 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:47:49,178 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:47:50,814 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:47:50,815 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:47:52,334 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4946#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~n~0#1| 20) (= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 1 (* 2 |ULTIMATE.start_main_~a~0#1|)) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~t~0#1_90| Int)) (and (<= 1 |v_ULTIMATE.start_main_~t~0#1_90|) (<= |v_ULTIMATE.start_main_~t~0#1_90| 9223372036854775806) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~t~0#1_90| |v_ULTIMATE.start_main_~t~0#1_90|)))) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 04:47:52,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:47:52,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:47:52,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-14 04:47:52,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371047281] [2024-11-14 04:47:52,335 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:47:52,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:47:52,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:52,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:47:52,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-14 04:47:52,336 INFO L87 Difference]: Start difference. First operand 198 states and 244 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 04:47:52,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:52,633 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2024-11-14 04:47:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:47:52,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 59 [2024-11-14 04:47:52,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:52,635 INFO L225 Difference]: With dead ends: 258 [2024-11-14 04:47:52,635 INFO L226 Difference]: Without dead ends: 250 [2024-11-14 04:47:52,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 142 SyntacticMatches, 15 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:47:52,636 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 151 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:52,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 206 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:47:52,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-14 04:47:52,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 194. [2024-11-14 04:47:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 157 states have (on average 1.267515923566879) internal successors, (199), 176 states have internal predecessors, (199), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:47:52,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 231 transitions. [2024-11-14 04:47:52,648 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 231 transitions. Word has length 59 [2024-11-14 04:47:52,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:52,649 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 231 transitions. [2024-11-14 04:47:52,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 04:47:52,649 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 231 transitions. [2024-11-14 04:47:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-14 04:47:52,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:52,650 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:47:52,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 04:47:52,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 04:47:52,851 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:52,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash -725327883, now seen corresponding path program 1 times [2024-11-14 04:47:52,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:52,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968723178] [2024-11-14 04:47:52,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:52,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:52,992 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:47:52,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:52,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968723178] [2024-11-14 04:47:52,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968723178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:47:52,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824638603] [2024-11-14 04:47:52,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:52,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:52,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:47:52,994 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:47:52,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:47:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:53,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:47:53,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:47:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:47:53,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:47:53,293 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:47:53,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824638603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:47:53,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1705000093] [2024-11-14 04:47:53,295 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-14 04:47:53,295 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:47:53,295 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:47:53,295 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:47:53,295 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:47:54,662 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:47:54,662 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:47:55,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1705000093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:47:55,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:47:55,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [4, 4, 4] total 22 [2024-11-14 04:47:55,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848950844] [2024-11-14 04:47:55,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:47:55,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:47:55,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:55,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:47:55,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:47:55,927 INFO L87 Difference]: Start difference. First operand 194 states and 231 transitions. Second operand has 15 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:47:57,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:57,265 INFO L93 Difference]: Finished difference Result 195 states and 232 transitions. [2024-11-14 04:47:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 04:47:57,267 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2024-11-14 04:47:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:57,269 INFO L225 Difference]: With dead ends: 195 [2024-11-14 04:47:57,269 INFO L226 Difference]: Without dead ends: 185 [2024-11-14 04:47:57,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 146 SyntacticMatches, 15 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=327, Invalid=795, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 04:47:57,271 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 163 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:57,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 85 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:47:57,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-14 04:47:57,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 184. [2024-11-14 04:47:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 157 states have (on average 1.089171974522293) internal successors, (171), 166 states have internal predecessors, (171), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:47:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 203 transitions. [2024-11-14 04:47:57,289 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 203 transitions. Word has length 60 [2024-11-14 04:47:57,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:57,290 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 203 transitions. [2024-11-14 04:47:57,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:47:57,290 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 203 transitions. [2024-11-14 04:47:57,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-14 04:47:57,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:57,292 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:47:57,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 04:47:57,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 04:47:57,493 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:47:57,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:57,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1010327816, now seen corresponding path program 1 times [2024-11-14 04:47:57,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:57,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602119864] [2024-11-14 04:47:57,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:57,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:47:57,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:47:57,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602119864] [2024-11-14 04:47:57,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602119864] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:47:57,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911024347] [2024-11-14 04:47:57,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:57,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:57,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:47:57,618 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:47:57,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:47:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:47:57,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:47:57,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:47:57,790 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:47:57,790 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:47:57,889 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:47:57,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911024347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:47:57,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [602275893] [2024-11-14 04:47:57,891 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-14 04:47:57,892 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:47:57,892 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:47:57,892 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:47:57,892 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:47:59,294 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:47:59,295 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:48:00,723 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6659#(and (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~t~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 20) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 2305843009213693951 (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 04:48:00,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:48:00,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:48:00,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-14 04:48:00,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582079431] [2024-11-14 04:48:00,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:48:00,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:48:00,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:48:00,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:48:00,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-14 04:48:00,726 INFO L87 Difference]: Start difference. First operand 184 states and 203 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-14 04:48:00,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:48:00,965 INFO L93 Difference]: Finished difference Result 209 states and 236 transitions. [2024-11-14 04:48:00,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:48:00,966 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 61 [2024-11-14 04:48:00,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:48:00,967 INFO L225 Difference]: With dead ends: 209 [2024-11-14 04:48:00,967 INFO L226 Difference]: Without dead ends: 204 [2024-11-14 04:48:00,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 148 SyntacticMatches, 15 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2024-11-14 04:48:00,968 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 96 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:48:00,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 202 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:48:00,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-14 04:48:00,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 180. [2024-11-14 04:48:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 157 states have (on average 1.0509554140127388) internal successors, (165), 162 states have internal predecessors, (165), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:48:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 197 transitions. [2024-11-14 04:48:00,989 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 197 transitions. Word has length 61 [2024-11-14 04:48:00,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:48:00,990 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 197 transitions. [2024-11-14 04:48:00,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-14 04:48:00,991 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 197 transitions. [2024-11-14 04:48:00,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 04:48:00,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:48:00,994 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:48:01,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 04:48:01,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:48:01,195 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:48:01,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:48:01,195 INFO L85 PathProgramCache]: Analyzing trace with hash 764781357, now seen corresponding path program 1 times [2024-11-14 04:48:01,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:48:01,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830012430] [2024-11-14 04:48:01,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:48:01,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:48:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:48:01,279 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 04:48:01,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:48:01,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830012430] [2024-11-14 04:48:01,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830012430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:48:01,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:48:01,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:48:01,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283257046] [2024-11-14 04:48:01,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:48:01,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:48:01,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:48:01,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:48:01,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:48:01,281 INFO L87 Difference]: Start difference. First operand 180 states and 197 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:48:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:48:01,321 INFO L93 Difference]: Finished difference Result 180 states and 197 transitions. [2024-11-14 04:48:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:48:01,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 92 [2024-11-14 04:48:01,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:48:01,323 INFO L225 Difference]: With dead ends: 180 [2024-11-14 04:48:01,323 INFO L226 Difference]: Without dead ends: 179 [2024-11-14 04:48:01,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:48:01,323 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 28 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:48:01,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 65 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:48:01,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-14 04:48:01,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-14 04:48:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 157 states have (on average 1.0445859872611465) internal successors, (164), 161 states have internal predecessors, (164), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:48:01,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 196 transitions. [2024-11-14 04:48:01,338 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 196 transitions. Word has length 92 [2024-11-14 04:48:01,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:48:01,338 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 196 transitions. [2024-11-14 04:48:01,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:48:01,339 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 196 transitions. [2024-11-14 04:48:01,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-14 04:48:01,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:48:01,340 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:48:01,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 04:48:01,340 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:48:01,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:48:01,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1199955835, now seen corresponding path program 1 times [2024-11-14 04:48:01,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:48:01,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903454914] [2024-11-14 04:48:01,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:48:01,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:48:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:48:01,408 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-14 04:48:01,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:48:01,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903454914] [2024-11-14 04:48:01,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903454914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:48:01,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:48:01,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:48:01,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401494179] [2024-11-14 04:48:01,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:48:01,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:48:01,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:48:01,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:48:01,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:48:01,409 INFO L87 Difference]: Start difference. First operand 179 states and 196 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:48:01,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:48:01,480 INFO L93 Difference]: Finished difference Result 179 states and 196 transitions. [2024-11-14 04:48:01,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:48:01,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 95 [2024-11-14 04:48:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:48:01,482 INFO L225 Difference]: With dead ends: 179 [2024-11-14 04:48:01,483 INFO L226 Difference]: Without dead ends: 178 [2024-11-14 04:48:01,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:48:01,485 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 26 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:48:01,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 55 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:48:01,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-14 04:48:01,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2024-11-14 04:48:01,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 157 states have (on average 1.0382165605095541) internal successors, (163), 160 states have internal predecessors, (163), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:48:01,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 195 transitions. [2024-11-14 04:48:01,502 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 195 transitions. Word has length 95 [2024-11-14 04:48:01,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:48:01,503 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 195 transitions. [2024-11-14 04:48:01,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:48:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 195 transitions. [2024-11-14 04:48:01,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-14 04:48:01,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:48:01,505 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:48:01,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 04:48:01,505 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:48:01,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:48:01,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1241328759, now seen corresponding path program 1 times [2024-11-14 04:48:01,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:48:01,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620129619] [2024-11-14 04:48:01,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:48:01,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:48:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:48:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-14 04:48:01,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:48:01,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620129619] [2024-11-14 04:48:01,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620129619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:48:01,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:48:01,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:48:01,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166260527] [2024-11-14 04:48:01,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:48:01,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:48:01,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:48:01,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:48:01,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:48:01,573 INFO L87 Difference]: Start difference. First operand 178 states and 195 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:48:01,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:48:01,655 INFO L93 Difference]: Finished difference Result 178 states and 195 transitions. [2024-11-14 04:48:01,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:48:01,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 99 [2024-11-14 04:48:01,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:48:01,657 INFO L225 Difference]: With dead ends: 178 [2024-11-14 04:48:01,657 INFO L226 Difference]: Without dead ends: 177 [2024-11-14 04:48:01,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:48:01,658 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 26 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:48:01,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 55 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:48:01,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-14 04:48:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-14 04:48:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 157 states have (on average 1.0318471337579618) internal successors, (162), 159 states have internal predecessors, (162), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 04:48:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 194 transitions. [2024-11-14 04:48:01,680 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 194 transitions. Word has length 99 [2024-11-14 04:48:01,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:48:01,680 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 194 transitions. [2024-11-14 04:48:01,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:48:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 194 transitions. [2024-11-14 04:48:01,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 04:48:01,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:48:01,681 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:48:01,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 04:48:01,682 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:48:01,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:48:01,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1083975947, now seen corresponding path program 1 times [2024-11-14 04:48:01,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:48:01,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964720894] [2024-11-14 04:48:01,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:48:01,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:48:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:48:01,746 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-14 04:48:01,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:48:01,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964720894] [2024-11-14 04:48:01,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964720894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:48:01,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:48:01,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:48:01,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841080251] [2024-11-14 04:48:01,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:48:01,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:48:01,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:48:01,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:48:01,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:48:01,749 INFO L87 Difference]: Start difference. First operand 177 states and 194 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:48:01,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:48:01,828 INFO L93 Difference]: Finished difference Result 177 states and 194 transitions. [2024-11-14 04:48:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:48:01,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 101 [2024-11-14 04:48:01,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:48:01,830 INFO L225 Difference]: With dead ends: 177 [2024-11-14 04:48:01,830 INFO L226 Difference]: Without dead ends: 152 [2024-11-14 04:48:01,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:48:01,831 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 26 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:48:01,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 55 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:48:01,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-14 04:48:01,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-14 04:48:01,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 135 states have (on average 1.0148148148148148) internal successors, (137), 136 states have internal predecessors, (137), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 04:48:01,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 165 transitions. [2024-11-14 04:48:01,845 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 165 transitions. Word has length 101 [2024-11-14 04:48:01,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:48:01,846 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 165 transitions. [2024-11-14 04:48:01,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 04:48:01,846 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 165 transitions. [2024-11-14 04:48:01,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-14 04:48:01,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:48:01,848 INFO L215 NwaCegarLoop]: trace histogram [11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-14 04:48:01,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 04:48:01,848 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:48:01,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:48:01,848 INFO L85 PathProgramCache]: Analyzing trace with hash -365067272, now seen corresponding path program 2 times [2024-11-14 04:48:01,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:48:01,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380494232] [2024-11-14 04:48:01,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:48:01,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:48:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:48:02,124 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-14 04:48:02,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:48:02,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380494232] [2024-11-14 04:48:02,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380494232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:48:02,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247576468] [2024-11-14 04:48:02,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:48:02,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:48:02,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:48:02,127 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:48:02,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 04:48:02,183 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 04:48:02,183 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:48:02,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 04:48:02,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:48:02,636 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 18 proven. 63 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-14 04:48:02,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:48:03,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247576468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:48:03,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [752407816] [2024-11-14 04:48:03,237 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-14 04:48:03,240 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:48:03,241 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:48:03,241 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:48:03,241 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:48:04,702 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:48:04,703 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:48:07,931 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9229#(and (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~t~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 20) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 2305843009213693951 (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 04:48:07,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:48:07,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:48:07,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2024-11-14 04:48:07,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901867648] [2024-11-14 04:48:07,932 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:48:07,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:48:07,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:48:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:48:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=877, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 04:48:07,934 INFO L87 Difference]: Start difference. First operand 152 states and 165 transitions. Second operand has 15 states, 13 states have (on average 12.384615384615385) internal successors, (161), 15 states have internal predecessors, (161), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-14 04:48:08,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:48:08,814 INFO L93 Difference]: Finished difference Result 165 states and 180 transitions. [2024-11-14 04:48:08,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 04:48:08,815 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 12.384615384615385) internal successors, (161), 15 states have internal predecessors, (161), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 139 [2024-11-14 04:48:08,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:48:08,816 INFO L225 Difference]: With dead ends: 165 [2024-11-14 04:48:08,816 INFO L226 Difference]: Without dead ends: 164 [2024-11-14 04:48:08,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 246 SyntacticMatches, 37 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1426 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=509, Invalid=1941, Unknown=0, NotChecked=0, Total=2450 [2024-11-14 04:48:08,818 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 305 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:48:08,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 60 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:48:08,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-14 04:48:08,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 151. [2024-11-14 04:48:08,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 135 states have (on average 1.0074074074074073) internal successors, (136), 135 states have internal predecessors, (136), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 04:48:08,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 164 transitions. [2024-11-14 04:48:08,835 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 164 transitions. Word has length 139 [2024-11-14 04:48:08,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:48:08,836 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 164 transitions. [2024-11-14 04:48:08,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 12.384615384615385) internal successors, (161), 15 states have internal predecessors, (161), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-14 04:48:08,836 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 164 transitions. [2024-11-14 04:48:08,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-14 04:48:08,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:48:08,838 INFO L215 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-14 04:48:08,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 04:48:09,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:48:09,042 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-14 04:48:09,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:48:09,043 INFO L85 PathProgramCache]: Analyzing trace with hash -945859154, now seen corresponding path program 2 times [2024-11-14 04:48:09,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:48:09,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304419725] [2024-11-14 04:48:09,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:48:09,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:48:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:48:09,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193130435] [2024-11-14 04:48:09,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:48:09,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:48:09,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:48:09,079 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:48:09,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 04:48:09,148 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 04:48:09,149 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:48:09,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:48:09,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:48:09,647 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 24 proven. 78 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-14 04:48:09,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:48:11,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:48:11,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304419725] [2024-11-14 04:48:11,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:48:11,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193130435] [2024-11-14 04:48:11,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193130435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:48:11,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [894939516] [2024-11-14 04:48:11,476 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-14 04:48:11,476 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:48:11,477 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:48:11,477 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:48:11,477 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:48:12,779 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:48:12,779 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:48:26,051 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10257#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~t~0#1_118| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~t~0#1_118| |v_ULTIMATE.start_main_~t~0#1_118|)) (<= 1 |v_ULTIMATE.start_main_~t~0#1_118|) (<= |v_ULTIMATE.start_main_~t~0#1_118| 9223372036854775806))) (<= |ULTIMATE.start_main_~n~0#1| 20) (= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 1 (* 2 |ULTIMATE.start_main_~a~0#1|)) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~s~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~a~0#1|) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 04:48:26,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:48:26,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:48:26,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 04:48:26,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461244957] [2024-11-14 04:48:26,052 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:48:26,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:48:26,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:48:26,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:48:26,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:48:26,053 INFO L87 Difference]: Start difference. First operand 151 states and 164 transitions. Second operand has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-14 04:48:26,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:48:26,424 INFO L93 Difference]: Finished difference Result 152 states and 165 transitions. [2024-11-14 04:48:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:48:26,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 176 [2024-11-14 04:48:26,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:48:26,425 INFO L225 Difference]: With dead ends: 152 [2024-11-14 04:48:26,425 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:48:26,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 304 SyntacticMatches, 48 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=236, Invalid=886, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 04:48:26,426 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 123 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:48:26,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 28 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:48:26,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:48:26,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:48:26,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:48:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:48:26,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2024-11-14 04:48:26,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:48:26,427 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:48:26,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-14 04:48:26,428 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:48:26,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:48:26,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2024-11-14 04:48:26,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2024-11-14 04:48:26,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2024-11-14 04:48:26,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2024-11-14 04:48:26,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2024-11-14 04:48:26,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2024-11-14 04:48:26,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2024-11-14 04:48:26,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2024-11-14 04:48:26,432 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2024-11-14 04:48:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2024-11-14 04:48:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2024-11-14 04:48:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2024-11-14 04:48:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2024-11-14 04:48:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2024-11-14 04:48:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2024-11-14 04:48:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 50 remaining) [2024-11-14 04:48:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 50 remaining) [2024-11-14 04:48:26,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2024-11-14 04:48:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2024-11-14 04:48:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2024-11-14 04:48:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2024-11-14 04:48:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2024-11-14 04:48:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2024-11-14 04:48:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2024-11-14 04:48:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2024-11-14 04:48:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2024-11-14 04:48:26,434 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2024-11-14 04:48:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2024-11-14 04:48:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2024-11-14 04:48:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2024-11-14 04:48:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2024-11-14 04:48:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2024-11-14 04:48:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2024-11-14 04:48:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2024-11-14 04:48:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2024-11-14 04:48:26,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2024-11-14 04:48:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2024-11-14 04:48:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2024-11-14 04:48:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2024-11-14 04:48:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2024-11-14 04:48:26,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2024-11-14 04:48:26,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 04:48:26,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:48:26,643 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:48:26,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:48:27,774 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:48:27,786 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:48:27,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:48:27,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:48:27,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:48:27,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:48:27,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:48:27,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 04:48:27,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 04:48:27,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:48:27,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 04:48:27,792 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 04:48:27,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:48:27 BoogieIcfgContainer [2024-11-14 04:48:27,806 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:48:27,807 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:48:27,807 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:48:27,807 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:48:27,807 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:47:34" (3/4) ... [2024-11-14 04:48:27,809 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:48:27,812 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-14 04:48:27,817 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-14 04:48:27,818 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-14 04:48:27,819 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:48:27,819 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:48:27,920 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:48:27,921 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:48:27,921 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:48:27,922 INFO L158 Benchmark]: Toolchain (without parser) took 54356.69ms. Allocated memory was 117.4MB in the beginning and 704.6MB in the end (delta: 587.2MB). Free memory was 92.5MB in the beginning and 468.9MB in the end (delta: -376.4MB). Peak memory consumption was 210.4MB. Max. memory is 16.1GB. [2024-11-14 04:48:27,922 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 73.7MB in the end (delta: 98.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:48:27,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.07ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 81.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:48:27,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.32ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:48:27,923 INFO L158 Benchmark]: Boogie Preprocessor took 27.62ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.9MB in the end (delta: 902.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:48:27,923 INFO L158 Benchmark]: RCFGBuilder took 645.52ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 58.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:48:27,924 INFO L158 Benchmark]: TraceAbstraction took 53230.00ms. Allocated memory was 117.4MB in the beginning and 704.6MB in the end (delta: 587.2MB). Free memory was 58.3MB in the beginning and 473.1MB in the end (delta: -414.9MB). Peak memory consumption was 176.9MB. Max. memory is 16.1GB. [2024-11-14 04:48:27,924 INFO L158 Benchmark]: Witness Printer took 114.58ms. Allocated memory is still 704.6MB. Free memory was 473.1MB in the beginning and 468.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:48:27,925 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 73.7MB in the end (delta: 98.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.07ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 81.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.32ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.62ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.9MB in the end (delta: 902.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 645.52ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 58.7MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 53230.00ms. Allocated memory was 117.4MB in the beginning and 704.6MB in the end (delta: 587.2MB). Free memory was 58.3MB in the beginning and 473.1MB in the end (delta: -414.9MB). Peak memory consumption was 176.9MB. Max. memory is 16.1GB. * Witness Printer took 114.58ms. Allocated memory is still 704.6MB. Free memory was 473.1MB in the beginning and 468.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 113 locations, 50 error locations. Started 1 CEGAR loops. OverallTime: 52.0s, OverallIterations: 19, TraceHistogramMax: 14, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1852 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1794 mSDsluCounter, 2521 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1398 mSDsCounter, 251 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2423 IncrementalHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 251 mSolverCounterUnsat, 1123 mSDtfsCounter, 2423 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1648 GetRequests, 1283 SyntacticMatches, 155 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3948 ImplicationChecksByTransitivity, 27.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=10, InterpolantAutomatonStates: 108, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 339 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 1850 NumberOfCodeBlocks, 1607 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 1789 ConstructedInterpolants, 4 QuantifiedInterpolants, 8124 SizeOfPredicates, 8 NumberOfNonLiveVariables, 819 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 29 InterpolantComputations, 12 PerfectInterpolantSequences, 1237/1692 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 1.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 53, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 149, TOOLS_POST_TIME: 0.6s, TOOLS_POST_CALL_APPLICATIONS: 33, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 30, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 212, TOOLS_QUANTIFIERELIM_TIME: 1.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 230, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 26, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 53, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 30, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 2535, DAG_COMPRESSION_RETAINED_NODES: 156, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 50 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((s <= ((__int128) t + 20)) && (n <= 20)) && (((__int128) t + 1) <= s)) && (3 <= t)) && (1 <= a)) && ((((__int128) a * a) + ((__int128) 2 * a)) <= 9223372036854775806)) && (1 <= n)) && (s <= 9223372036854775807)) || (((((n <= 20) && (t == 1)) && (a == 0)) && (0 <= n)) && (s == 1))) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (cond != 0) RESULT: Ultimate proved your program to be correct! [2024-11-14 04:48:27,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e50b0a52-7fea-42ee-a95d-ffb04eae7e0a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE