./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.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_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/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_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/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_3161f553-4515-49e9-aa86-7ea566786e6b/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 f3d22aeda2fb15b9dd79854281ee0f5e475c0f7ee1551b76594f45703ddc81df --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:44:16,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:44:16,848 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-13 23:44:16,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:44:16,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:44:16,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:44:16,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:44:16,903 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:44:16,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:44:16,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:44:16,904 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:44:16,904 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:44:16,905 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:44:16,905 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:44:16,905 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:44:16,905 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:44:16,905 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:44:16,905 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:44:16,907 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:44:16,908 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:44:16,908 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:44:16,908 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:44:16,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:44:16,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:44:16,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:44:16,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:44:16,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:44:16,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:44:16,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:44:16,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:16,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:44:16,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:44:16,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:44:16,912 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:44:16,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:44:16,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:44:16,913 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:44:16,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:44:16,913 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_3161f553-4515-49e9-aa86-7ea566786e6b/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 -> f3d22aeda2fb15b9dd79854281ee0f5e475c0f7ee1551b76594f45703ddc81df [2024-11-13 23:44:17,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:44:17,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:44:17,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:44:17,320 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:44:17,321 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:44:17,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c Unable to find full path for "g++" [2024-11-13 23:44:19,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:44:19,934 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:44:19,935 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength4.c [2024-11-13 23:44:19,945 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/data/400d64ec2/806790d777aa422e884590281ee1bd8d/FLAGdfcf88192 [2024-11-13 23:44:19,964 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/data/400d64ec2/806790d777aa422e884590281ee1bd8d [2024-11-13 23:44:19,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:44:19,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:44:19,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:19,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:44:19,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:44:19,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:19" (1/1) ... [2024-11-13 23:44:19,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2824bccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:19, skipping insertion in model container [2024-11-13 23:44:19,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:44:19" (1/1) ... [2024-11-13 23:44:19,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:44:20,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:20,199 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:44:20,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:44:20,243 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:44:20,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20 WrapperNode [2024-11-13 23:44:20,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:44:20,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:20,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:44:20,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:44:20,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,296 INFO L138 Inliner]: procedures = 8, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-13 23:44:20,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:44:20,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:44:20,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:44:20,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:44:20,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,314 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,338 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:44:20,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:44:20,339 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:44:20,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:44:20,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (1/1) ... [2024-11-13 23:44:20,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:44:20,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:20,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:44:20,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:44:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:44:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:44:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:44:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:44:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:44:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:44:20,547 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:44:20,551 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:44:20,824 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-13 23:44:20,824 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:44:20,901 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:44:20,902 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 23:44:20,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:20 BoogieIcfgContainer [2024-11-13 23:44:20,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:44:20,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:44:20,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:44:20,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:44:20,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:44:19" (1/3) ... [2024-11-13 23:44:20,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ceee488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:20, skipping insertion in model container [2024-11-13 23:44:20,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:44:20" (2/3) ... [2024-11-13 23:44:20,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ceee488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:44:20, skipping insertion in model container [2024-11-13 23:44:20,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:20" (3/3) ... [2024-11-13 23:44:20,916 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength4.c [2024-11-13 23:44:20,937 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:44:20,939 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG ArraysOfVariableLength4.c that has 1 procedures, 19 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-13 23:44:21,019 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:44:21,041 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;@4e5f776e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:44:21,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-13 23:44:21,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 23:44:21,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:21,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 23:44:21,060 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:21,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:21,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2810541, now seen corresponding path program 1 times [2024-11-13 23:44:21,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:21,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010330972] [2024-11-13 23:44:21,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:21,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:21,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:21,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:21,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010330972] [2024-11-13 23:44:21,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010330972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:21,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:21,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:21,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347158246] [2024-11-13 23:44:21,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:21,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:44:21,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:21,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:44:21,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:44:21,536 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:21,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:21,658 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2024-11-13 23:44:21,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:44:21,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-13 23:44:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:21,671 INFO L225 Difference]: With dead ends: 24 [2024-11-13 23:44:21,672 INFO L226 Difference]: Without dead ends: 20 [2024-11-13 23:44:21,675 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 [2024-11-13 23:44:21,679 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:21,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-13 23:44:21,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-13 23:44:21,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2024-11-13 23:44:21,729 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2024-11-13 23:44:21,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:21,732 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2024-11-13 23:44:21,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-13 23:44:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 23:44:21,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:21,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 23:44:21,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:44:21,733 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:21,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2812101, now seen corresponding path program 1 times [2024-11-13 23:44:21,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:21,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369153440] [2024-11-13 23:44:21,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:21,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:21,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:21,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369153440] [2024-11-13 23:44:21,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369153440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:21,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:21,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:21,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717534328] [2024-11-13 23:44:21,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:21,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:44:21,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:21,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:44:21,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:44:21,917 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:21,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:21,946 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2024-11-13 23:44:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:44:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-13 23:44:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:21,949 INFO L225 Difference]: With dead ends: 39 [2024-11-13 23:44:21,949 INFO L226 Difference]: Without dead ends: 20 [2024-11-13 23:44:21,950 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 [2024-11-13 23:44:21,951 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:21,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:44:21,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-13 23:44:21,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-13 23:44:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:21,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2024-11-13 23:44:21,962 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 4 [2024-11-13 23:44:21,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:21,962 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2024-11-13 23:44:21,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2024-11-13 23:44:21,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 23:44:21,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:21,964 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 23:44:21,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:44:21,965 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:21,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:21,966 INFO L85 PathProgramCache]: Analyzing trace with hash 88940261, now seen corresponding path program 1 times [2024-11-13 23:44:21,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:21,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000511630] [2024-11-13 23:44:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:21,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:22,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:22,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:22,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000511630] [2024-11-13 23:44:22,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000511630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:22,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:22,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:22,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545136638] [2024-11-13 23:44:22,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:22,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:44:22,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:22,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:44:22,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:44:22,102 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:22,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:22,183 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2024-11-13 23:44:22,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:44:22,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-13 23:44:22,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:22,185 INFO L225 Difference]: With dead ends: 39 [2024-11-13 23:44:22,185 INFO L226 Difference]: Without dead ends: 33 [2024-11-13 23:44:22,186 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 [2024-11-13 23:44:22,187 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:22,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 30 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:22,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-13 23:44:22,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2024-11-13 23:44:22,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2024-11-13 23:44:22,193 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 5 [2024-11-13 23:44:22,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:22,194 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-11-13 23:44:22,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:22,194 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2024-11-13 23:44:22,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 23:44:22,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:22,194 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-11-13 23:44:22,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:44:22,195 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:22,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:22,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2124499817, now seen corresponding path program 1 times [2024-11-13 23:44:22,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:22,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304576683] [2024-11-13 23:44:22,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:22,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:22,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:22,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:22,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304576683] [2024-11-13 23:44:22,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304576683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:22,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910592330] [2024-11-13 23:44:22,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:22,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:22,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:22,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:22,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:44:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:22,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:44:22,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:22,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:22,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910592330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:22,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:44:22,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-13 23:44:22,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34956434] [2024-11-13 23:44:22,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:22,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 23:44:22,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:22,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 23:44:22,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 23:44:22,584 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:22,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:22,673 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2024-11-13 23:44:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:44:22,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 23:44:22,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:22,676 INFO L225 Difference]: With dead ends: 25 [2024-11-13 23:44:22,676 INFO L226 Difference]: Without dead ends: 24 [2024-11-13 23:44:22,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 23:44:22,678 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:22,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:22,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-13 23:44:22,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-13 23:44:22,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.368421052631579) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:22,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2024-11-13 23:44:22,690 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 7 [2024-11-13 23:44:22,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:22,690 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2024-11-13 23:44:22,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2024-11-13 23:44:22,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 23:44:22,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:22,691 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:22,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:44:22,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:22,892 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:22,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:22,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2124501377, now seen corresponding path program 1 times [2024-11-13 23:44:22,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:22,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715811291] [2024-11-13 23:44:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:22,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:44:22,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:22,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715811291] [2024-11-13 23:44:22,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715811291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:22,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:22,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:44:22,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653214777] [2024-11-13 23:44:22,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:22,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:44:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:22,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:44:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:44:22,980 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:23,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:23,056 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2024-11-13 23:44:23,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:44:23,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 23:44:23,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:23,058 INFO L225 Difference]: With dead ends: 35 [2024-11-13 23:44:23,058 INFO L226 Difference]: Without dead ends: 33 [2024-11-13 23:44:23,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:44:23,059 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:23,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 27 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:23,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-13 23:44:23,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2024-11-13 23:44:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:23,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-11-13 23:44:23,072 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 7 [2024-11-13 23:44:23,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:23,072 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-11-13 23:44:23,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:23,072 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2024-11-13 23:44:23,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:44:23,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:23,077 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-13 23:44:23,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 23:44:23,078 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:23,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:23,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1434984939, now seen corresponding path program 1 times [2024-11-13 23:44:23,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:23,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728960349] [2024-11-13 23:44:23,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:23,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:23,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:23,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728960349] [2024-11-13 23:44:23,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728960349] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:23,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435774617] [2024-11-13 23:44:23,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:23,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:23,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:23,277 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:23,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:44:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:23,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:44:23,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:23,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:23,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435774617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:23,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [3553241] [2024-11-13 23:44:23,488 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-13 23:44:23,489 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:23,492 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:23,498 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:23,498 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:24,385 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:24,789 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '465#(and (= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= 2 |ULTIMATE.start_foo_~b#1.base|) (= |ULTIMATE.start_main_~i~1#1| 0) (<= 2 |ULTIMATE.start_main_~#b~0#1.base|) (<= 2 |ULTIMATE.start_main_~#mask~0#1.base|) (= 32 |ULTIMATE.start_foo_~size#1|) (= |ULTIMATE.start_foo_~b#1.offset| 0))' at error location [2024-11-13 23:44:24,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:44:24,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:24,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-13 23:44:24,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714331913] [2024-11-13 23:44:24,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:44:24,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 23:44:24,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:24,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 23:44:24,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-13 23:44:24,795 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:24,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:24,878 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2024-11-13 23:44:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 23:44:24,879 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-13 23:44:24,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:24,881 INFO L225 Difference]: With dead ends: 51 [2024-11-13 23:44:24,881 INFO L226 Difference]: Without dead ends: 50 [2024-11-13 23:44:24,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-13 23:44:24,883 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 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 [2024-11-13 23:44:24,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:24,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-13 23:44:24,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-13 23:44:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 49 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:24,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2024-11-13 23:44:24,896 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 8 [2024-11-13 23:44:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:24,899 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2024-11-13 23:44:24,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:24,900 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2024-11-13 23:44:24,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 23:44:24,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:24,900 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-13 23:44:24,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 23:44:25,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 23:44:25,101 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:25,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1465298943, now seen corresponding path program 1 times [2024-11-13 23:44:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:25,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959441250] [2024-11-13 23:44:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:25,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:44:25,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:25,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959441250] [2024-11-13 23:44:25,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959441250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:25,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375812145] [2024-11-13 23:44:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:25,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:25,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:25,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:25,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:44:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:25,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:44:25,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:25,424 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:44:25,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:25,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 23:44:25,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375812145] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:25,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2063080901] [2024-11-13 23:44:25,498 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-13 23:44:25,499 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:25,499 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:25,499 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:25,499 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:26,450 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:26,907 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '687#(exists ((|v_ULTIMATE.start_main_#t~post3#1_23| Int)) (and (<= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_23|))) 2147483647) (<= (+ 2147483650 |v_ULTIMATE.start_main_#t~post3#1_23|) 0) (exists ((|v_#memory_int_24| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_24| |ULTIMATE.start_main_~#b~0#1.base| (store (select |v_#memory_int_24| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_23|)) (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_23|))))))) (<= 32 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_23|))))))' at error location [2024-11-13 23:44:26,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:44:26,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:26,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-13 23:44:26,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700216329] [2024-11-13 23:44:26,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:44:26,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 23:44:26,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:26,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 23:44:26,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-13 23:44:26,912 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:26,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:26,987 INFO L93 Difference]: Finished difference Result 83 states and 98 transitions. [2024-11-13 23:44:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 23:44:26,988 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-13 23:44:26,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:26,991 INFO L225 Difference]: With dead ends: 83 [2024-11-13 23:44:26,991 INFO L226 Difference]: Without dead ends: 50 [2024-11-13 23:44:26,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-13 23:44:26,992 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:26,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:26,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-13 23:44:27,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-13 23:44:27,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:27,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2024-11-13 23:44:27,006 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 14 [2024-11-13 23:44:27,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:27,007 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2024-11-13 23:44:27,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:27,007 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2024-11-13 23:44:27,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 23:44:27,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:27,007 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1] [2024-11-13 23:44:27,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 23:44:27,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:27,212 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:27,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:27,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1154287143, now seen corresponding path program 2 times [2024-11-13 23:44:27,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:27,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626351308] [2024-11-13 23:44:27,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:27,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:44:27,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:27,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626351308] [2024-11-13 23:44:27,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626351308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:27,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925935460] [2024-11-13 23:44:27,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:44:27,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:27,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:27,573 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:27,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:44:27,655 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-13 23:44:27,655 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:44:27,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 23:44:27,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 23:44:27,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 23:44:27,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925935460] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:27,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [486192280] [2024-11-13 23:44:27,814 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-13 23:44:27,814 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:27,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:27,816 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:27,816 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:28,137 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:28,724 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '974#(and (= |ULTIMATE.start_main_~#mask~0#1.offset| 0) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= 2 |ULTIMATE.start_foo_~b#1.base|) (= |ULTIMATE.start_main_~i~1#1| 0) (<= 2 |ULTIMATE.start_main_~#b~0#1.base|) (<= 2 |ULTIMATE.start_main_~#mask~0#1.base|) (= 32 |ULTIMATE.start_foo_~size#1|) (= |ULTIMATE.start_foo_~b#1.offset| 0))' at error location [2024-11-13 23:44:28,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:44:28,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:28,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 15 [2024-11-13 23:44:28,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771076152] [2024-11-13 23:44:28,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:44:28,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 23:44:28,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:28,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 23:44:28,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-11-13 23:44:28,726 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:29,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:29,044 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2024-11-13 23:44:29,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 23:44:29,045 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-13 23:44:29,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:29,047 INFO L225 Difference]: With dead ends: 56 [2024-11-13 23:44:29,047 INFO L226 Difference]: Without dead ends: 55 [2024-11-13 23:44:29,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2024-11-13 23:44:29,049 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:29,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:29,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-13 23:44:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 39. [2024-11-13 23:44:29,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2024-11-13 23:44:29,069 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 17 [2024-11-13 23:44:29,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:29,070 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2024-11-13 23:44:29,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:29,071 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2024-11-13 23:44:29,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 23:44:29,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:29,073 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:29,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 23:44:29,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-13 23:44:29,278 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:29,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:29,278 INFO L85 PathProgramCache]: Analyzing trace with hash -491651876, now seen corresponding path program 1 times [2024-11-13 23:44:29,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:29,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99950529] [2024-11-13 23:44:29,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:29,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 23:44:29,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:29,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99950529] [2024-11-13 23:44:29,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99950529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:29,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30738654] [2024-11-13 23:44:29,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:29,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:29,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:29,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:29,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:44:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:29,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:44:29,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:29,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 23:44:29,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 23:44:30,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30738654] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:30,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [551013891] [2024-11-13 23:44:30,085 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2024-11-13 23:44:30,085 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:30,085 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:30,085 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:30,085 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:31,387 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:31,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [551013891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:31,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:31,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9, 9] total 31 [2024-11-13 23:44:31,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836791642] [2024-11-13 23:44:31,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:31,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 23:44:31,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:31,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 23:44:31,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=774, Unknown=0, NotChecked=0, Total=930 [2024-11-13 23:44:31,944 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:32,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:32,836 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2024-11-13 23:44:32,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:44:32,837 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-13 23:44:32,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:32,837 INFO L225 Difference]: With dead ends: 39 [2024-11-13 23:44:32,837 INFO L226 Difference]: Without dead ends: 37 [2024-11-13 23:44:32,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=178, Invalid=1012, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 23:44:32,839 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:32,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:44:32,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-13 23:44:32,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-13 23:44:32,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:32,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2024-11-13 23:44:32,854 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 22 [2024-11-13 23:44:32,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:32,855 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2024-11-13 23:44:32,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:32,855 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2024-11-13 23:44:32,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 23:44:32,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:32,860 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:32,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 23:44:33,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-13 23:44:33,061 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:33,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:33,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1938661113, now seen corresponding path program 1 times [2024-11-13 23:44:33,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:33,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449211510] [2024-11-13 23:44:33,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:33,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 23:44:33,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:33,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449211510] [2024-11-13 23:44:33,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449211510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:33,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800192322] [2024-11-13 23:44:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:33,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:33,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:33,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:33,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:44:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:33,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 23:44:33,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:44:33,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 23:44:33,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800192322] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:33,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1716271552] [2024-11-13 23:44:33,606 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2024-11-13 23:44:33,609 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:33,610 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:33,610 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:33,610 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:34,659 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:35,260 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1540#(exists ((|v_ULTIMATE.start_main_#t~post5#1_24| Int)) (and (= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post5#1_24|))) 32) (<= 2147483647 |v_ULTIMATE.start_main_#t~post5#1_24|) (<= (mod |v_ULTIMATE.start_main_#t~post5#1_24| 4294967296) 31)))' at error location [2024-11-13 23:44:35,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:44:35,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:35,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2024-11-13 23:44:35,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949038112] [2024-11-13 23:44:35,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:44:35,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 23:44:35,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:35,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 23:44:35,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2024-11-13 23:44:35,263 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:35,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:35,772 INFO L93 Difference]: Finished difference Result 90 states and 104 transitions. [2024-11-13 23:44:35,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-13 23:44:35,774 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-13 23:44:35,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:35,775 INFO L225 Difference]: With dead ends: 90 [2024-11-13 23:44:35,775 INFO L226 Difference]: Without dead ends: 65 [2024-11-13 23:44:35,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=257, Invalid=1465, Unknown=0, NotChecked=0, Total=1722 [2024-11-13 23:44:35,777 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 46 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:35,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 33 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:35,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-13 23:44:35,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-13 23:44:35,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.0793650793650793) internal successors, (68), 64 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:35,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2024-11-13 23:44:35,811 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 23 [2024-11-13 23:44:35,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:35,812 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2024-11-13 23:44:35,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 20 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:35,812 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2024-11-13 23:44:35,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 23:44:35,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:35,814 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:35,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 23:44:36,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:36,015 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:36,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:36,017 INFO L85 PathProgramCache]: Analyzing trace with hash -373183646, now seen corresponding path program 2 times [2024-11-13 23:44:36,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:36,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146628113] [2024-11-13 23:44:36,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:36,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:36,747 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 23:44:36,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:36,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146628113] [2024-11-13 23:44:36,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146628113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:36,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137219143] [2024-11-13 23:44:36,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:44:36,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:36,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:36,751 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:36,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 23:44:36,840 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 23:44:36,840 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:44:36,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 23:44:36,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:36,957 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-13 23:44:36,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-13 23:44:37,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137219143] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:37,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1511210456] [2024-11-13 23:44:37,117 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2024-11-13 23:44:37,117 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:37,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:37,118 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:37,118 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:38,000 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:38,543 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2030#(exists ((|v_ULTIMATE.start_main_#t~post5#1_31| Int)) (and (<= (mod |v_ULTIMATE.start_main_#t~post5#1_31| 4294967296) 31) (= 32 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post5#1_31|)))) (<= 2147483647 |v_ULTIMATE.start_main_#t~post5#1_31|)))' at error location [2024-11-13 23:44:38,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:44:38,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:38,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 4, 4] total 23 [2024-11-13 23:44:38,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86749881] [2024-11-13 23:44:38,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:44:38,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 23:44:38,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:38,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 23:44:38,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:44:38,546 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:40,129 INFO L93 Difference]: Finished difference Result 141 states and 153 transitions. [2024-11-13 23:44:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-13 23:44:40,130 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 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 39 [2024-11-13 23:44:40,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:40,131 INFO L225 Difference]: With dead ends: 141 [2024-11-13 23:44:40,131 INFO L226 Difference]: Without dead ends: 100 [2024-11-13 23:44:40,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=820, Invalid=5032, Unknown=0, NotChecked=0, Total=5852 [2024-11-13 23:44:40,136 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 80 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:40,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 31 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:44:40,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-13 23:44:40,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-13 23:44:40,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 98 states have (on average 1.0714285714285714) internal successors, (105), 99 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:40,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2024-11-13 23:44:40,170 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 39 [2024-11-13 23:44:40,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:40,170 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2024-11-13 23:44:40,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 23 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:40,170 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2024-11-13 23:44:40,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 23:44:40,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:40,172 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 1, 1, 1] [2024-11-13 23:44:40,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 23:44:40,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 23:44:40,372 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:40,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:40,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1827407403, now seen corresponding path program 1 times [2024-11-13 23:44:40,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:40,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705747655] [2024-11-13 23:44:40,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:40,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:40,593 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-13 23:44:40,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:40,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705747655] [2024-11-13 23:44:40,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705747655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:40,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338922461] [2024-11-13 23:44:40,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:40,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:40,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:40,596 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:40,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 23:44:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:40,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 23:44:40,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:41,108 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 210 proven. 92 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-13 23:44:41,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 210 proven. 92 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-13 23:44:41,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338922461] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2039759268] [2024-11-13 23:44:41,641 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2024-11-13 23:44:41,641 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:41,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:41,642 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:41,642 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:42,173 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:44:42,857 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2826#(exists ((|v_ULTIMATE.start_main_#t~post3#1_46| Int)) (and (or (and (<= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_46|))) 2147483647) (exists ((|v_#memory_int_79| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_79| |ULTIMATE.start_main_~#b~0#1.base| (store (select |v_#memory_int_79| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_46|)) (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_46|))))))) (<= 32 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_46|))))) (and (<= (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_46|))) 2147483647) (<= 32 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_46|)))) (exists ((|v_#memory_int_77| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_77| |ULTIMATE.start_main_~#b~0#1.base| (store (select |v_#memory_int_77| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_46|)) (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post3#1_46|))))))))) (<= 2147483647 |v_ULTIMATE.start_main_#t~post3#1_46|)))' at error location [2024-11-13 23:44:42,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:44:42,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:42,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 19, 19] total 40 [2024-11-13 23:44:42,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109469974] [2024-11-13 23:44:42,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:44:42,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-13 23:44:42,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:42,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-13 23:44:42,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=1705, Unknown=0, NotChecked=0, Total=2070 [2024-11-13 23:44:42,860 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand has 40 states, 40 states have (on average 1.9) internal successors, (76), 40 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:47,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:47,240 INFO L93 Difference]: Finished difference Result 254 states and 290 transitions. [2024-11-13 23:44:47,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-11-13 23:44:47,240 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 1.9) internal successors, (76), 40 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-13 23:44:47,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:47,242 INFO L225 Difference]: With dead ends: 254 [2024-11-13 23:44:47,242 INFO L226 Difference]: Without dead ends: 181 [2024-11-13 23:44:47,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3477 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1993, Invalid=10439, Unknown=0, NotChecked=0, Total=12432 [2024-11-13 23:44:47,245 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:47,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 45 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:44:47,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-13 23:44:47,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-13 23:44:47,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 179 states have (on average 1.0335195530726258) internal successors, (185), 180 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:47,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 185 transitions. [2024-11-13 23:44:47,320 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 185 transitions. Word has length 57 [2024-11-13 23:44:47,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:47,320 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 185 transitions. [2024-11-13 23:44:47,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 1.9) internal successors, (76), 40 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:47,321 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 185 transitions. [2024-11-13 23:44:47,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-13 23:44:47,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:47,324 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 3, 3, 3, 2, 1, 1] [2024-11-13 23:44:47,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 23:44:47,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 23:44:47,527 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:47,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:47,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1467030819, now seen corresponding path program 2 times [2024-11-13 23:44:47,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:47,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915525241] [2024-11-13 23:44:47,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:47,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 1806 proven. 425 refuted. 0 times theorem prover too weak. 1759 trivial. 0 not checked. [2024-11-13 23:44:50,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:50,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915525241] [2024-11-13 23:44:50,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915525241] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:50,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142188585] [2024-11-13 23:44:50,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:44:50,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:50,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:50,143 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:50,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 23:44:50,271 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 23:44:50,271 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:44:50,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:44:50,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:50,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 1810 proven. 0 refuted. 0 times theorem prover too weak. 2180 trivial. 0 not checked. [2024-11-13 23:44:50,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:44:50,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142188585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:50,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 23:44:50,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [37] total 40 [2024-11-13 23:44:50,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638062308] [2024-11-13 23:44:50,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:50,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:44:50,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:50,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:44:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 23:44:50,634 INFO L87 Difference]: Start difference. First operand 181 states and 185 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:50,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:50,727 INFO L93 Difference]: Finished difference Result 181 states and 185 transitions. [2024-11-13 23:44:50,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:44:50,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2024-11-13 23:44:50,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:50,730 INFO L225 Difference]: With dead ends: 181 [2024-11-13 23:44:50,730 INFO L226 Difference]: Without dead ends: 180 [2024-11-13 23:44:50,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 23:44:50,731 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:50,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 16 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:44:50,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-13 23:44:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-13 23:44:50,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.0279329608938548) internal successors, (184), 179 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:50,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 184 transitions. [2024-11-13 23:44:50,797 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 184 transitions. Word has length 166 [2024-11-13 23:44:50,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:50,799 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 184 transitions. [2024-11-13 23:44:50,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:44:50,800 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 184 transitions. [2024-11-13 23:44:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 23:44:50,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:50,806 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2024-11-13 23:44:50,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 23:44:51,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 23:44:51,007 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:44:51,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:51,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1014463202, now seen corresponding path program 3 times [2024-11-13 23:44:51,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:51,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195584073] [2024-11-13 23:44:51,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:51,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:53,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 1807 proven. 425 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2024-11-13 23:44:53,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:53,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195584073] [2024-11-13 23:44:53,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195584073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:53,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772626364] [2024-11-13 23:44:53,419 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 23:44:53,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:53,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:53,423 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:53,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 23:44:54,292 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 23:44:54,292 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:44:54,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-13 23:44:54,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:56,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 1807 proven. 425 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2024-11-13 23:44:56,426 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:58,866 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 1807 proven. 425 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2024-11-13 23:44:58,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772626364] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:58,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [539785948] [2024-11-13 23:44:58,868 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2024-11-13 23:44:58,868 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:58,868 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:58,869 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:58,869 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:44:59,615 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:45:00,417 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5738#(exists ((|v_ULTIMATE.start_main_#t~post5#1_38| Int)) (and (<= 2147483647 |v_ULTIMATE.start_main_#t~post5#1_38|) (= 32 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ (* 4 |v_ULTIMATE.start_main_#t~post5#1_38|) |ULTIMATE.start_main_~#b~0#1.offset|))) (<= (mod |v_ULTIMATE.start_main_#t~post5#1_38| 4294967296) 31)))' at error location [2024-11-13 23:45:00,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:45:00,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:45:00,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 107 [2024-11-13 23:45:00,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689332234] [2024-11-13 23:45:00,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:45:00,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2024-11-13 23:45:00,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:00,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2024-11-13 23:45:00,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2632, Invalid=10708, Unknown=0, NotChecked=0, Total=13340 [2024-11-13 23:45:00,423 INFO L87 Difference]: Start difference. First operand 180 states and 184 transitions. Second operand has 107 states, 107 states have (on average 1.6168224299065421) internal successors, (173), 107 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:00,751 INFO L93 Difference]: Finished difference Result 441 states and 493 transitions. [2024-11-13 23:45:00,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-11-13 23:45:00,752 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 1.6168224299065421) internal successors, (173), 107 states have internal predecessors, (173), 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 179 [2024-11-13 23:45:00,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:00,753 INFO L225 Difference]: With dead ends: 441 [2024-11-13 23:45:00,754 INFO L226 Difference]: Without dead ends: 315 [2024-11-13 23:45:00,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4505 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=2632, Invalid=10708, Unknown=0, NotChecked=0, Total=13340 [2024-11-13 23:45:00,758 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:00,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:45:00,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-13 23:45:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-11-13 23:45:00,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.015923566878981) internal successors, (319), 314 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:00,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 319 transitions. [2024-11-13 23:45:00,827 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 319 transitions. Word has length 179 [2024-11-13 23:45:00,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:00,827 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 319 transitions. [2024-11-13 23:45:00,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 1.6168224299065421) internal successors, (173), 107 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 319 transitions. [2024-11-13 23:45:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-11-13 23:45:00,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:00,833 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2024-11-13 23:45:00,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 23:45:01,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 23:45:01,034 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-13 23:45:01,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:01,034 INFO L85 PathProgramCache]: Analyzing trace with hash 427504814, now seen corresponding path program 4 times [2024-11-13 23:45:01,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:01,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326279263] [2024-11-13 23:45:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:01,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 13995 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13983 trivial. 0 not checked. [2024-11-13 23:45:01,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:01,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326279263] [2024-11-13 23:45:01,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326279263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:45:01,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519839327] [2024-11-13 23:45:01,724 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-13 23:45:01,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:45:01,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:01,727 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:45:01,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 23:45:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:02,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 23:45:02,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:02,136 INFO L134 CoverageAnalysis]: Checked inductivity of 13995 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13983 trivial. 0 not checked. [2024-11-13 23:45:02,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:45:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 13995 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 13983 trivial. 0 not checked. [2024-11-13 23:45:02,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519839327] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:45:02,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2120726374] [2024-11-13 23:45:02,235 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2024-11-13 23:45:02,235 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:45:02,235 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:45:02,235 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:45:02,235 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:45:02,951 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:45:03,383 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8651#(exists ((|v_ULTIMATE.start_main_#t~post5#1_47| Int)) (and (= 32 (select (select |#memory_int| |ULTIMATE.start_main_~#b~0#1.base|) (+ |ULTIMATE.start_main_~#b~0#1.offset| (* 4 |v_ULTIMATE.start_main_#t~post5#1_47|)))) (<= 2147483647 |v_ULTIMATE.start_main_#t~post5#1_47|) (<= (mod |v_ULTIMATE.start_main_#t~post5#1_47| 4294967296) 31)))' at error location [2024-11-13 23:45:03,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:45:03,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:45:03,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-13 23:45:03,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301592682] [2024-11-13 23:45:03,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:45:03,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 23:45:03,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:03,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 23:45:03,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2024-11-13 23:45:03,386 INFO L87 Difference]: Start difference. First operand 315 states and 319 transitions. Second operand has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:03,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:03,524 INFO L93 Difference]: Finished difference Result 320 states and 325 transitions. [2024-11-13 23:45:03,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 23:45:03,525 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 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 314 [2024-11-13 23:45:03,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:03,529 INFO L225 Difference]: With dead ends: 320 [2024-11-13 23:45:03,529 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 23:45:03,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 924 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2024-11-13 23:45:03,532 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:03,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:45:03,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 23:45:03,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 23:45:03,536 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) [2024-11-13 23:45:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 23:45:03,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 314 [2024-11-13 23:45:03,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:03,537 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 23:45:03,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:45:03,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 23:45:03,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 23:45:03,541 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-13 23:45:03,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-13 23:45:03,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-13 23:45:03,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-13 23:45:03,544 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-13 23:45:03,545 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-13 23:45:03,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 23:45:03,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 23:45:03,750 INFO L407 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:03,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 23:45:08,097 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:45:08,112 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:45:08,113 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:45:08,114 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~#b~0!base,]]] [2024-11-13 23:45:08,114 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:45:08,114 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:45:08,114 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~#b~0!base,]]] [2024-11-13 23:45:08,114 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#mask~0!offset [2024-11-13 23:45:08,114 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:45:08,115 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#b~0!offset [2024-11-13 23:45:08,115 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 23:45:08,115 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 23:45:08,115 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:45:08,115 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#b~0!base [2024-11-13 23:45:08,115 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:45:08,116 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#mask~0!base [2024-11-13 23:45:08,116 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:45:08,116 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:45:08,116 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~#b~0!base,]]] [2024-11-13 23:45:08,117 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:45:08,117 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:45:08,117 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~#b~0!base,]]] [2024-11-13 23:45:08,117 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#mask~0!offset [2024-11-13 23:45:08,117 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:45:08,117 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#b~0!offset [2024-11-13 23:45:08,118 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 23:45:08,118 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 23:45:08,118 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:45:08,118 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#b~0!base [2024-11-13 23:45:08,118 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:45:08,118 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#mask~0!base [2024-11-13 23:45:08,122 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:45:08,122 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:45:08,122 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~#b~0!base,]]] [2024-11-13 23:45:08,122 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:45:08,122 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:45:08,122 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~#b~0!base,]]] [2024-11-13 23:45:08,123 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#mask~0!offset [2024-11-13 23:45:08,123 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:45:08,123 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#b~0!offset [2024-11-13 23:45:08,123 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 23:45:08,123 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 23:45:08,123 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:45:08,123 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#b~0!base [2024-11-13 23:45:08,124 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-13 23:45:08,124 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#mask~0!base [2024-11-13 23:45:08,124 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:45:08,124 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:45:08,124 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~#b~0!base,]]] [2024-11-13 23:45:08,124 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-13 23:45:08,124 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-13 23:45:08,125 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~#b~0!base,]]] [2024-11-13 23:45:08,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:45:08 BoogieIcfgContainer [2024-11-13 23:45:08,126 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:45:08,127 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:45:08,127 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:45:08,127 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:45:08,128 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:44:20" (3/4) ... [2024-11-13 23:45:08,130 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 23:45:08,137 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-13 23:45:08,137 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 23:45:08,138 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 23:45:08,138 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:45:08,240 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-13 23:45:08,240 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-13 23:45:08,241 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:45:08,242 INFO L158 Benchmark]: Toolchain (without parser) took 48272.35ms. Allocated memory was 117.4MB in the beginning and 587.2MB in the end (delta: 469.8MB). Free memory was 92.0MB in the beginning and 412.8MB in the end (delta: -320.8MB). Peak memory consumption was 148.6MB. Max. memory is 16.1GB. [2024-11-13 23:45:08,242 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 83.9MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:08,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.21ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 81.6MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:45:08,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.87ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.6MB in the end (delta: 949.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:08,243 INFO L158 Benchmark]: Boogie Preprocessor took 38.68ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 930.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:08,244 INFO L158 Benchmark]: RCFGBuilder took 563.62ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 67.2MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:45:08,244 INFO L158 Benchmark]: TraceAbstraction took 47220.83ms. Allocated memory was 117.4MB in the beginning and 587.2MB in the end (delta: 469.8MB). Free memory was 66.7MB in the beginning and 417.1MB in the end (delta: -350.3MB). Peak memory consumption was 261.3MB. Max. memory is 16.1GB. [2024-11-13 23:45:08,244 INFO L158 Benchmark]: Witness Printer took 113.80ms. Allocated memory is still 587.2MB. Free memory was 417.1MB in the beginning and 412.8MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:45:08,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 83.9MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.21ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 81.6MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.87ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.6MB in the end (delta: 949.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.68ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 930.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 563.62ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 67.2MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 47220.83ms. Allocated memory was 117.4MB in the beginning and 587.2MB in the end (delta: 469.8MB). Free memory was 66.7MB in the beginning and 417.1MB in the end (delta: -350.3MB). Peak memory consumption was 261.3MB. Max. memory is 16.1GB. * Witness Printer took 113.80ms. Allocated memory is still 587.2MB. Free memory was 417.1MB in the beginning and 412.8MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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],[IdentifierExpression[~#b~0!base,]]] - 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],[IdentifierExpression[~#b~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#mask~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#b~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#b~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#mask~0!base - 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],[IdentifierExpression[~#b~0!base,]]] - 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],[IdentifierExpression[~#b~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#mask~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#b~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#b~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#mask~0!base - 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],[IdentifierExpression[~#b~0!base,]]] - 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],[IdentifierExpression[~#b~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#mask~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#b~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#b~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#mask~0!base - 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],[IdentifierExpression[~#b~0!base,]]] - 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],[IdentifierExpression[~#b~0!base,]]] * 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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 42.8s, OverallIterations: 15, TraceHistogramMax: 96, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 549 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 424 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1082 IncrementalHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 125 mSDtfsCounter, 1082 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2464 GetRequests, 1953 SyntacticMatches, 7 SemanticMatches, 504 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11024 ImplicationChecksByTransitivity, 19.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=14, InterpolantAutomatonStates: 333, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 1712 NumberOfCodeBlocks, 1521 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2350 ConstructedInterpolants, 0 QuantifiedInterpolants, 5202 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2676 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 35 InterpolantComputations, 6 PerfectInterpolantSequences, 61322/63650 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: 1.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 18, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 90, TOOLS_POST_TIME: 1.0s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 66, TOOLS_QUANTIFIERELIM_TIME: 1.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 142, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 9, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 15, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 18, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 9, LOOP_SUMMARIZER_CACHE_MISSES: 9, LOOP_SUMMARIZER_OVERALL_TIME: 1.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 15, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 244, DAG_COMPRESSION_RETAINED_NODES: 55, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((((((((i >= 0) ? (i % 4294967296) : ((i % 4294967296) + 4294967296)) <= 31) && (0 <= i)) && (i <= 2147483647)) && (i <= 2147483647)) && (32 == size)) && (1 <= i)) || (((((((i >= 0) ? (i % 4294967296) : ((i % 4294967296) + 4294967296)) <= 31) && (0 <= i)) && (i <= 2147483647)) && (32 == size)) && (i == 0))) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((i <= 2147483647) && (0 <= (i + 2147483648))) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((0 <= i) && (i <= 2147483645)) || (i == 0)) RESULT: Ultimate proved your program to be correct! [2024-11-13 23:45:08,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3161f553-4515-49e9-aa86-7ea566786e6b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE