./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-005.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_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/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_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-005.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/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_21ad1126-0b5d-4d7c-9949-35029cb6ef08/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 a9f3ee9eee9186ec2e7139b6da07915cfbf3926b7d28b3dac4ebf3fd8205beb2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:38:49,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:38:49,354 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 04:38:49,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:38:49,364 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:38:49,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:38:49,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:38:49,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:38:49,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:38:49,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:38:49,387 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:38:49,388 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:38:49,388 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:38:49,388 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:38:49,388 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:38:49,388 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:38:49,388 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:38:49,388 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:38:49,389 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:38:49,389 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:38:49,389 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:38:49,389 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:38:49,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:38:49,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:38:49,390 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:38:49,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:38:49,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:38:49,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:38:49,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:38:49,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:38:49,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:38:49,391 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:38:49,391 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:38:49,391 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:38:49,391 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:38:49,391 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:38:49,391 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:38:49,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:38:49,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:38:49,392 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:38:49,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:38:49,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:38:49,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:38:49,393 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:38:49,393 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:38:49,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:38:49,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:38:49,393 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:38:49,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:38:49,393 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_21ad1126-0b5d-4d7c-9949-35029cb6ef08/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 -> a9f3ee9eee9186ec2e7139b6da07915cfbf3926b7d28b3dac4ebf3fd8205beb2 [2024-11-14 04:38:49,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:38:49,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:38:49,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:38:49,740 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:38:49,740 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:38:49,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/xcsp/AllInterval-005.c Unable to find full path for "g++" [2024-11-14 04:38:51,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:38:52,044 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:38:52,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/sv-benchmarks/c/xcsp/AllInterval-005.c [2024-11-14 04:38:52,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/data/8d7c15a7b/a54d74fe56804b44bb731cc5e6149c16/FLAG0ea799b32 [2024-11-14 04:38:52,082 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/data/8d7c15a7b/a54d74fe56804b44bb731cc5e6149c16 [2024-11-14 04:38:52,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:38:52,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:38:52,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:38:52,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:38:52,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:38:52,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1042b668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52, skipping insertion in model container [2024-11-14 04:38:52,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:38:52,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:38:52,348 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:38:52,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:38:52,399 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:38:52,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52 WrapperNode [2024-11-14 04:38:52,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:38:52,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:38:52,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:38:52,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:38:52,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,444 INFO L138 Inliner]: procedures = 13, calls = 46, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 141 [2024-11-14 04:38:52,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:38:52,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:38:52,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:38:52,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:38:52,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,471 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,471 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:38:52,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:38:52,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:38:52,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:38:52,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (1/1) ... [2024-11-14 04:38:52,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:38:52,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:38:52,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:38:52,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:38:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:38:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:38:52,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:38:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:38:52,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-14 04:38:52,577 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-14 04:38:52,663 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:38:52,666 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:38:53,084 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-14 04:38:53,084 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:38:53,127 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:38:53,128 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:38:53,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:38:53 BoogieIcfgContainer [2024-11-14 04:38:53,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:38:53,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:38:53,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:38:53,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:38:53,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:38:52" (1/3) ... [2024-11-14 04:38:53,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71529dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:38:53, skipping insertion in model container [2024-11-14 04:38:53,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:52" (2/3) ... [2024-11-14 04:38:53,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71529dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:38:53, skipping insertion in model container [2024-11-14 04:38:53,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:38:53" (3/3) ... [2024-11-14 04:38:53,139 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-005.c [2024-11-14 04:38:53,156 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:38:53,157 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG AllInterval-005.c that has 2 procedures, 93 locations, 1 initial locations, 0 loop locations, and 16 error locations. [2024-11-14 04:38:53,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:38:53,231 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;@7e4038e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:38:53,232 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-14 04:38:53,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 37 states have (on average 1.5405405405405406) internal successors, (57), 53 states have internal predecessors, (57), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 04:38:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-14 04:38:53,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:53,248 INFO L215 NwaCegarLoop]: trace histogram [34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:38:53,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:38:53,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:53,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1665929348, now seen corresponding path program 1 times [2024-11-14 04:38:53,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:38:53,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178699842] [2024-11-14 04:38:53,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:53,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:38:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-11-14 04:38:54,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:38:54,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178699842] [2024-11-14 04:38:54,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178699842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:38:54,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165918452] [2024-11-14 04:38:54,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:54,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:38:54,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:38:54,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:38:54,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:38:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:54,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:38:54,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:38:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-11-14 04:38:54,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:38:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-11-14 04:38:55,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165918452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:38:55,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1756594364] [2024-11-14 04:38:55,363 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2024-11-14 04:38:55,363 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:38:55,367 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:38:55,374 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:38:55,374 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:39:00,182 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:39:00,184 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:39:08,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1756594364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:39:08,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:39:08,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [4, 4, 4] total 52 [2024-11-14 04:39:08,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392351966] [2024-11-14 04:39:08,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:39:08,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-14 04:39:08,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:39:08,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-14 04:39:08,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1261, Invalid=1495, Unknown=0, NotChecked=0, Total=2756 [2024-11-14 04:39:08,102 INFO L87 Difference]: Start difference. First operand has 93 states, 37 states have (on average 1.5405405405405406) internal successors, (57), 53 states have internal predecessors, (57), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 47 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:39:08,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:39:08,816 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2024-11-14 04:39:08,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-14 04:39:08,818 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 114 [2024-11-14 04:39:08,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:39:08,826 INFO L225 Difference]: With dead ends: 93 [2024-11-14 04:39:08,826 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 04:39:08,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=1261, Invalid=1495, Unknown=0, NotChecked=0, Total=2756 [2024-11-14 04:39:08,836 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 51 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:39:08,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 257 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:39:08,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 04:39:08,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-14 04:39:08,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 35 states have (on average 1.457142857142857) internal successors, (51), 48 states have internal predecessors, (51), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:39:08,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 125 transitions. [2024-11-14 04:39:08,899 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 125 transitions. Word has length 114 [2024-11-14 04:39:08,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:39:08,901 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 125 transitions. [2024-11-14 04:39:08,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:39:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 125 transitions. [2024-11-14 04:39:08,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 04:39:08,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:39:08,904 INFO L215 NwaCegarLoop]: trace histogram [34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:39:08,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:39:09,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 04:39:09,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:39:09,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:39:09,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1354180590, now seen corresponding path program 1 times [2024-11-14 04:39:09,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:39:09,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193355849] [2024-11-14 04:39:09,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:09,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:39:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2024-11-14 04:39:09,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:39:09,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193355849] [2024-11-14 04:39:09,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193355849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:39:09,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:39:09,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:39:09,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346529052] [2024-11-14 04:39:09,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:39:09,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:39:09,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:39:09,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:39:09,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:39:09,211 INFO L87 Difference]: Start difference. First operand 87 states and 125 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-14 04:39:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:39:09,289 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2024-11-14 04:39:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:39:09,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 117 [2024-11-14 04:39:09,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:39:09,293 INFO L225 Difference]: With dead ends: 87 [2024-11-14 04:39:09,293 INFO L226 Difference]: Without dead ends: 83 [2024-11-14 04:39:09,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:39:09,294 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 4 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:39:09,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 201 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:39:09,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-14 04:39:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-14 04:39:09,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 44 states have internal predecessors, (47), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:39:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 121 transitions. [2024-11-14 04:39:09,325 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 121 transitions. Word has length 117 [2024-11-14 04:39:09,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:39:09,327 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 121 transitions. [2024-11-14 04:39:09,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-14 04:39:09,327 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 121 transitions. [2024-11-14 04:39:09,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-14 04:39:09,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:39:09,331 INFO L215 NwaCegarLoop]: trace histogram [34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:39:09,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:39:09,332 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:39:09,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:39:09,332 INFO L85 PathProgramCache]: Analyzing trace with hash -970074581, now seen corresponding path program 1 times [2024-11-14 04:39:09,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:39:09,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880849955] [2024-11-14 04:39:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:09,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:39:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:09,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-11-14 04:39:09,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:39:09,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880849955] [2024-11-14 04:39:09,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880849955] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:39:09,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251583081] [2024-11-14 04:39:09,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:09,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:09,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:39:09,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:39:09,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:39:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:09,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:39:09,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:39:09,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-11-14 04:39:09,899 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:39:10,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-11-14 04:39:10,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251583081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:39:10,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268516114] [2024-11-14 04:39:10,176 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-14 04:39:10,176 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:39:10,177 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:39:10,177 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:39:10,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:39:13,575 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:39:13,576 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:39:22,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1268516114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:39:22,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:39:22,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [5, 5, 5] total 53 [2024-11-14 04:39:22,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552161125] [2024-11-14 04:39:22,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:39:22,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-14 04:39:22,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:39:22,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-14 04:39:22,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1182, Invalid=1680, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 04:39:22,005 INFO L87 Difference]: Start difference. First operand 83 states and 121 transitions. Second operand has 49 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:39:23,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:39:23,249 INFO L93 Difference]: Finished difference Result 83 states and 121 transitions. [2024-11-14 04:39:23,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-14 04:39:23,250 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 118 [2024-11-14 04:39:23,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:39:23,251 INFO L225 Difference]: With dead ends: 83 [2024-11-14 04:39:23,251 INFO L226 Difference]: Without dead ends: 82 [2024-11-14 04:39:23,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 302 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=1182, Invalid=1680, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 04:39:23,257 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 33 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:39:23,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 179 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 04:39:23,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-14 04:39:23,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-14 04:39:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 43 states have internal predecessors, (46), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:39:23,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 120 transitions. [2024-11-14 04:39:23,290 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 120 transitions. Word has length 118 [2024-11-14 04:39:23,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:39:23,290 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 120 transitions. [2024-11-14 04:39:23,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 04:39:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 120 transitions. [2024-11-14 04:39:23,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-14 04:39:23,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:39:23,292 INFO L215 NwaCegarLoop]: trace histogram [35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:39:23,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 04:39:23,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:23,493 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:39:23,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:39:23,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1293754784, now seen corresponding path program 1 times [2024-11-14 04:39:23,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:39:23,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439318225] [2024-11-14 04:39:23,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:23,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:39:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:39:23,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:39:23,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439318225] [2024-11-14 04:39:23,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439318225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:39:23,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034884430] [2024-11-14 04:39:23,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:23,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:23,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:39:23,789 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:39:23,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:39:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:23,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:39:23,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:39:24,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:39:24,063 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:39:24,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:39:24,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034884430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:39:24,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [558757190] [2024-11-14 04:39:24,306 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2024-11-14 04:39:24,306 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:39:24,306 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:39:24,306 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:39:24,307 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:39:27,414 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:39:27,415 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:39:36,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [558757190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:39:36,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:39:36,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [4, 4, 4] total 56 [2024-11-14 04:39:36,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717235194] [2024-11-14 04:39:36,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:39:36,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-14 04:39:36,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:39:36,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-14 04:39:36,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1283, Invalid=1909, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 04:39:36,291 INFO L87 Difference]: Start difference. First operand 82 states and 120 transitions. Second operand has 51 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:39:37,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:39:37,445 INFO L93 Difference]: Finished difference Result 88 states and 127 transitions. [2024-11-14 04:39:37,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-14 04:39:37,446 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 121 [2024-11-14 04:39:37,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:39:37,448 INFO L225 Difference]: With dead ends: 88 [2024-11-14 04:39:37,448 INFO L226 Difference]: Without dead ends: 86 [2024-11-14 04:39:37,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 308 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=1283, Invalid=1909, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 04:39:37,450 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 38 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:39:37,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 153 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 04:39:37,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-14 04:39:37,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-14 04:39:37,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 46 states have internal predecessors, (49), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 04:39:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 125 transitions. [2024-11-14 04:39:37,474 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 125 transitions. Word has length 121 [2024-11-14 04:39:37,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:39:37,475 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 125 transitions. [2024-11-14 04:39:37,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:39:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 125 transitions. [2024-11-14 04:39:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-14 04:39:37,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:39:37,477 INFO L215 NwaCegarLoop]: trace histogram [35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:39:37,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 04:39:37,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:37,681 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:39:37,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:39:37,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1982620804, now seen corresponding path program 1 times [2024-11-14 04:39:37,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:39:37,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216363005] [2024-11-14 04:39:37,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:37,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:39:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:37,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:39:37,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:39:37,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216363005] [2024-11-14 04:39:37,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216363005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:39:37,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944182912] [2024-11-14 04:39:37,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:37,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:37,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:39:37,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:39:37,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:39:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:38,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:39:38,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:39:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:39:38,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:39:38,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:39:38,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944182912] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:39:38,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [980846125] [2024-11-14 04:39:38,521 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 04:39:38,522 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:39:38,523 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:39:38,523 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:39:38,523 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:39:41,025 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:39:41,026 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:39:50,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [980846125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:39:50,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:39:50,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [6, 6, 6] total 63 [2024-11-14 04:39:50,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989607208] [2024-11-14 04:39:50,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:39:50,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-14 04:39:50,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:39:50,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-14 04:39:50,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1428, Invalid=2604, Unknown=0, NotChecked=0, Total=4032 [2024-11-14 04:39:50,601 INFO L87 Difference]: Start difference. First operand 86 states and 125 transitions. Second operand has 52 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:39:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:39:52,336 INFO L93 Difference]: Finished difference Result 86 states and 125 transitions. [2024-11-14 04:39:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-14 04:39:52,336 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 123 [2024-11-14 04:39:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:39:52,338 INFO L225 Difference]: With dead ends: 86 [2024-11-14 04:39:52,338 INFO L226 Difference]: Without dead ends: 84 [2024-11-14 04:39:52,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 309 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 834 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=1428, Invalid=2604, Unknown=0, NotChecked=0, Total=4032 [2024-11-14 04:39:52,339 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 31 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:39:52,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 202 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 04:39:52,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-14 04:39:52,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2024-11-14 04:39:52,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 41 states have internal predecessors, (44), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:39:52,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 118 transitions. [2024-11-14 04:39:52,366 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 118 transitions. Word has length 123 [2024-11-14 04:39:52,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:39:52,367 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 118 transitions. [2024-11-14 04:39:52,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:39:52,367 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 118 transitions. [2024-11-14 04:39:52,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-14 04:39:52,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:39:52,369 INFO L215 NwaCegarLoop]: trace histogram [35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:39:52,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:39:52,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:52,573 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:39:52,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:39:52,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1352695111, now seen corresponding path program 1 times [2024-11-14 04:39:52,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:39:52,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868437835] [2024-11-14 04:39:52,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:52,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:39:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:52,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 44 proven. 80 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2024-11-14 04:39:52,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:39:52,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868437835] [2024-11-14 04:39:52,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868437835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:39:52,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976862445] [2024-11-14 04:39:52,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:52,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:53,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:39:53,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:39:53,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:39:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:53,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:39:53,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:39:53,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:39:53,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:39:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:39:53,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976862445] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:39:53,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1554203396] [2024-11-14 04:39:53,540 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2024-11-14 04:39:53,540 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:39:53,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:39:53,541 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:39:53,541 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:39:55,932 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:39:55,933 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:40:06,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1554203396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:06,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:40:06,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [9, 5, 5] total 64 [2024-11-14 04:40:06,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171467386] [2024-11-14 04:40:06,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:06,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-14 04:40:06,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:06,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-14 04:40:06,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1370, Invalid=2790, Unknown=0, NotChecked=0, Total=4160 [2024-11-14 04:40:06,236 INFO L87 Difference]: Start difference. First operand 80 states and 118 transitions. Second operand has 53 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:40:07,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:07,868 INFO L93 Difference]: Finished difference Result 88 states and 128 transitions. [2024-11-14 04:40:07,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-14 04:40:07,868 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 125 [2024-11-14 04:40:07,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:07,870 INFO L225 Difference]: With dead ends: 88 [2024-11-14 04:40:07,870 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 04:40:07,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 320 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=1370, Invalid=2790, Unknown=0, NotChecked=0, Total=4160 [2024-11-14 04:40:07,872 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 32 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:07,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 215 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 04:40:07,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 04:40:07,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-14 04:40:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 47 states have internal predecessors, (51), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 04:40:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2024-11-14 04:40:07,897 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 125 [2024-11-14 04:40:07,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:07,898 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2024-11-14 04:40:07,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:40:07,898 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2024-11-14 04:40:07,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 04:40:07,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:07,900 INFO L215 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:40:07,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 04:40:08,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 04:40:08,104 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:40:08,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:08,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1587840992, now seen corresponding path program 1 times [2024-11-14 04:40:08,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:08,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705659108] [2024-11-14 04:40:08,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:08,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:40:08,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:08,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705659108] [2024-11-14 04:40:08,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705659108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:40:08,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803321841] [2024-11-14 04:40:08,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:08,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:40:08,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:40:08,266 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:40:08,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:40:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:08,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:40:08,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:40:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:40:08,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:40:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:40:08,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803321841] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:40:08,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1622162136] [2024-11-14 04:40:08,748 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-14 04:40:08,752 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:40:08,752 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:40:08,752 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:40:08,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:40:10,961 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:40:10,962 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:40:21,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1622162136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:21,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:40:21,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [4, 4, 4] total 60 [2024-11-14 04:40:21,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159692368] [2024-11-14 04:40:21,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:21,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-14 04:40:21,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-14 04:40:21,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1303, Invalid=2357, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 04:40:21,188 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand has 55 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:40:22,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:22,583 INFO L93 Difference]: Finished difference Result 93 states and 134 transitions. [2024-11-14 04:40:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-14 04:40:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 128 [2024-11-14 04:40:22,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:22,584 INFO L225 Difference]: With dead ends: 93 [2024-11-14 04:40:22,585 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 04:40:22,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1303, Invalid=2357, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 04:40:22,586 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 40 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:22,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 178 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 04:40:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 04:40:22,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 04:40:22,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 50 states have internal predecessors, (54), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 04:40:22,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 132 transitions. [2024-11-14 04:40:22,622 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 132 transitions. Word has length 128 [2024-11-14 04:40:22,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:22,623 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 132 transitions. [2024-11-14 04:40:22,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:40:22,623 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 132 transitions. [2024-11-14 04:40:22,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-14 04:40:22,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:22,628 INFO L215 NwaCegarLoop]: trace histogram [35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:40:22,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 04:40:22,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 04:40:22,829 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:40:22,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash -141645533, now seen corresponding path program 1 times [2024-11-14 04:40:22,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:22,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003307329] [2024-11-14 04:40:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2024-11-14 04:40:23,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:23,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003307329] [2024-11-14 04:40:23,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003307329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:40:23,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302425935] [2024-11-14 04:40:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:23,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:40:23,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:40:23,035 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:40:23,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:40:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:23,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:40:23,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:40:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:40:23,338 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:40:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-14 04:40:23,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302425935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:40:23,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [700012549] [2024-11-14 04:40:23,630 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-14 04:40:23,630 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:40:23,630 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:40:23,630 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:40:23,630 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:40:25,507 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:40:25,508 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:40:35,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [700012549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:35,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:40:35,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [5, 7, 7] total 67 [2024-11-14 04:40:35,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424909101] [2024-11-14 04:40:35,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:35,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-14 04:40:35,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:35,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-14 04:40:35,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1457, Invalid=3099, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 04:40:35,898 INFO L87 Difference]: Start difference. First operand 91 states and 132 transitions. Second operand has 54 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:40:37,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:37,529 INFO L93 Difference]: Finished difference Result 91 states and 132 transitions. [2024-11-14 04:40:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-14 04:40:37,529 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 127 [2024-11-14 04:40:37,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:37,531 INFO L225 Difference]: With dead ends: 91 [2024-11-14 04:40:37,531 INFO L226 Difference]: Without dead ends: 90 [2024-11-14 04:40:37,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 317 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=1457, Invalid=3099, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 04:40:37,533 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 31 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:37,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 172 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 04:40:37,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-14 04:40:37,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2024-11-14 04:40:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 47 states have internal predecessors, (51), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 04:40:37,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 129 transitions. [2024-11-14 04:40:37,557 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 129 transitions. Word has length 127 [2024-11-14 04:40:37,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:37,558 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 129 transitions. [2024-11-14 04:40:37,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:40:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 129 transitions. [2024-11-14 04:40:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-14 04:40:37,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:37,562 INFO L215 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:40:37,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 04:40:37,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:40:37,763 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:40:37,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:37,764 INFO L85 PathProgramCache]: Analyzing trace with hash -526686468, now seen corresponding path program 1 times [2024-11-14 04:40:37,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:37,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293914145] [2024-11-14 04:40:37,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:37,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:40:37,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:37,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293914145] [2024-11-14 04:40:37,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293914145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:40:37,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645039214] [2024-11-14 04:40:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:37,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:40:37,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:40:37,942 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:40:37,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 04:40:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:38,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:40:38,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:40:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:40:38,226 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:40:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:40:38,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645039214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:40:38,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [70558126] [2024-11-14 04:40:38,484 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-14 04:40:38,485 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:40:38,485 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:40:38,485 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:40:38,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:40:40,566 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:40:40,567 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:40:51,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [70558126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:51,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:40:51,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [6, 6, 6] total 67 [2024-11-14 04:40:51,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495804647] [2024-11-14 04:40:51,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:51,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-14 04:40:51,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:51,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-14 04:40:51,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1456, Invalid=3100, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 04:40:51,682 INFO L87 Difference]: Start difference. First operand 88 states and 129 transitions. Second operand has 56 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:40:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:53,270 INFO L93 Difference]: Finished difference Result 96 states and 138 transitions. [2024-11-14 04:40:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-14 04:40:53,270 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 130 [2024-11-14 04:40:53,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:53,271 INFO L225 Difference]: With dead ends: 96 [2024-11-14 04:40:53,271 INFO L226 Difference]: Without dead ends: 94 [2024-11-14 04:40:53,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 325 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1113 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=1456, Invalid=3100, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 04:40:53,273 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 36 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:53,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 156 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 04:40:53,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-14 04:40:53,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-11-14 04:40:53,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 49 states have internal predecessors, (53), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 04:40:53,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 131 transitions. [2024-11-14 04:40:53,291 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 131 transitions. Word has length 130 [2024-11-14 04:40:53,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:53,291 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 131 transitions. [2024-11-14 04:40:53,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:40:53,291 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 131 transitions. [2024-11-14 04:40:53,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-14 04:40:53,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:53,293 INFO L215 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:40:53,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 04:40:53,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 04:40:53,493 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:40:53,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2141023940, now seen corresponding path program 1 times [2024-11-14 04:40:53,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:53,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846361996] [2024-11-14 04:40:53,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:53,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:53,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:40:53,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:53,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846361996] [2024-11-14 04:40:53,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846361996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:40:53,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923484742] [2024-11-14 04:40:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:53,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:40:53,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:40:53,642 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:40:53,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 04:40:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:53,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:40:53,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:40:53,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:40:53,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:40:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:40:54,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923484742] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:40:54,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [109169613] [2024-11-14 04:40:54,196 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-14 04:40:54,197 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:40:54,197 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:40:54,198 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:40:54,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:40:56,327 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:40:56,328 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:41:06,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [109169613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:06,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:41:06,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [4, 4, 4] total 61 [2024-11-14 04:41:06,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671060815] [2024-11-14 04:41:06,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:06,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-14 04:41:06,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:06,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-14 04:41:06,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1310, Invalid=2472, Unknown=0, NotChecked=0, Total=3782 [2024-11-14 04:41:06,857 INFO L87 Difference]: Start difference. First operand 90 states and 131 transitions. Second operand has 56 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:41:08,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:08,680 INFO L93 Difference]: Finished difference Result 96 states and 138 transitions. [2024-11-14 04:41:08,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-14 04:41:08,680 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 130 [2024-11-14 04:41:08,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:08,681 INFO L225 Difference]: With dead ends: 96 [2024-11-14 04:41:08,681 INFO L226 Difference]: Without dead ends: 94 [2024-11-14 04:41:08,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 329 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 813 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=1310, Invalid=2472, Unknown=0, NotChecked=0, Total=3782 [2024-11-14 04:41:08,683 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 38 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:08,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 186 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 04:41:08,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-14 04:41:08,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-11-14 04:41:08,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 44 states have (on average 1.2045454545454546) internal successors, (53), 49 states have internal predecessors, (53), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 04:41:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 131 transitions. [2024-11-14 04:41:08,699 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 131 transitions. Word has length 130 [2024-11-14 04:41:08,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:08,699 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 131 transitions. [2024-11-14 04:41:08,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:41:08,699 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 131 transitions. [2024-11-14 04:41:08,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-14 04:41:08,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:08,701 INFO L215 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:08,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 04:41:08,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 04:41:08,901 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:41:08,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:08,902 INFO L85 PathProgramCache]: Analyzing trace with hash 416749511, now seen corresponding path program 1 times [2024-11-14 04:41:08,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:08,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060545068] [2024-11-14 04:41:08,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:08,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:41:09,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:09,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060545068] [2024-11-14 04:41:09,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060545068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:41:09,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823526333] [2024-11-14 04:41:09,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:09,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:09,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:09,069 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:09,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 04:41:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:09,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:41:09,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:41:09,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:41:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:41:09,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823526333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:41:09,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1279323578] [2024-11-14 04:41:09,551 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-14 04:41:09,551 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:41:09,551 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:41:09,551 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:41:09,551 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:41:11,645 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:41:11,646 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:41:22,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1279323578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:22,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:41:22,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [5, 5, 5] total 61 [2024-11-14 04:41:22,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066775950] [2024-11-14 04:41:22,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:22,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-14 04:41:22,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:22,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-14 04:41:22,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1224, Invalid=2558, Unknown=0, NotChecked=0, Total=3782 [2024-11-14 04:41:22,715 INFO L87 Difference]: Start difference. First operand 90 states and 131 transitions. Second operand has 57 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:41:24,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:24,433 INFO L93 Difference]: Finished difference Result 98 states and 141 transitions. [2024-11-14 04:41:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-14 04:41:24,433 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 132 [2024-11-14 04:41:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:24,434 INFO L225 Difference]: With dead ends: 98 [2024-11-14 04:41:24,434 INFO L226 Difference]: Without dead ends: 97 [2024-11-14 04:41:24,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 334 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=1224, Invalid=2558, Unknown=0, NotChecked=0, Total=3782 [2024-11-14 04:41:24,436 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 34 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:24,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 170 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 04:41:24,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-14 04:41:24,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-14 04:41:24,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 50 states have (on average 1.2) internal successors, (60), 55 states have internal predecessors, (60), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 04:41:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2024-11-14 04:41:24,453 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 132 [2024-11-14 04:41:24,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:24,453 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2024-11-14 04:41:24,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:41:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2024-11-14 04:41:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-14 04:41:24,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:24,455 INFO L215 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:24,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-14 04:41:24,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 04:41:24,655 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:41:24,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:24,655 INFO L85 PathProgramCache]: Analyzing trace with hash 909788320, now seen corresponding path program 1 times [2024-11-14 04:41:24,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:24,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280338335] [2024-11-14 04:41:24,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:24,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:41:24,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:24,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280338335] [2024-11-14 04:41:24,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280338335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:41:24,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385806466] [2024-11-14 04:41:24,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:24,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:24,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:24,879 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:24,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 04:41:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:24,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:41:24,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:41:25,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:41:25,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:41:25,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385806466] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:41:25,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [67806301] [2024-11-14 04:41:25,483 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-14 04:41:25,483 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:41:25,483 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:41:25,483 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:41:25,483 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:41:27,414 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:41:27,415 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:41:39,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [67806301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:39,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:41:39,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [8, 6, 6] total 71 [2024-11-14 04:41:39,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494893160] [2024-11-14 04:41:39,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:39,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-14 04:41:39,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:39,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-14 04:41:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1547, Invalid=3565, Unknown=0, NotChecked=0, Total=5112 [2024-11-14 04:41:39,837 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand has 57 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:41:41,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:41,765 INFO L93 Difference]: Finished difference Result 97 states and 140 transitions. [2024-11-14 04:41:41,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-14 04:41:41,765 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 132 [2024-11-14 04:41:41,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:41,766 INFO L225 Difference]: With dead ends: 97 [2024-11-14 04:41:41,767 INFO L226 Difference]: Without dead ends: 95 [2024-11-14 04:41:41,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 329 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1102 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=1547, Invalid=3565, Unknown=0, NotChecked=0, Total=5112 [2024-11-14 04:41:41,768 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 29 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:41,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 200 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 04:41:41,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-14 04:41:41,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2024-11-14 04:41:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 48 states have internal predecessors, (53), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 04:41:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 131 transitions. [2024-11-14 04:41:41,783 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 131 transitions. Word has length 132 [2024-11-14 04:41:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:41,784 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 131 transitions. [2024-11-14 04:41:41,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:41:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 131 transitions. [2024-11-14 04:41:41,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:41:41,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:41,785 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:41,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 04:41:41,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:41,985 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:41:41,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:41,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1415941956, now seen corresponding path program 1 times [2024-11-14 04:41:41,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:41,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703351019] [2024-11-14 04:41:41,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:41,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:41:42,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:42,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703351019] [2024-11-14 04:41:42,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703351019] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:41:42,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250901098] [2024-11-14 04:41:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:42,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:42,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:42,124 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:42,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 04:41:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:42,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:41:42,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:41:42,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:41:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:41:42,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250901098] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:41:42,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1874642747] [2024-11-14 04:41:42,548 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-14 04:41:42,548 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:41:42,549 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:41:42,549 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:41:42,549 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:41:44,525 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:41:44,526 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:41:55,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1874642747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:55,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:41:55,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [4, 4, 4] total 64 [2024-11-14 04:41:55,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770651475] [2024-11-14 04:41:55,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:55,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-14 04:41:55,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:55,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-14 04:41:55,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1313, Invalid=2719, Unknown=0, NotChecked=0, Total=4032 [2024-11-14 04:41:55,971 INFO L87 Difference]: Start difference. First operand 89 states and 131 transitions. Second operand has 58 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:41:58,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:58,274 INFO L93 Difference]: Finished difference Result 101 states and 143 transitions. [2024-11-14 04:41:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-14 04:41:58,275 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 135 [2024-11-14 04:41:58,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:58,276 INFO L225 Difference]: With dead ends: 101 [2024-11-14 04:41:58,276 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 04:41:58,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 342 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 967 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=1313, Invalid=2719, Unknown=0, NotChecked=0, Total=4032 [2024-11-14 04:41:58,277 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 36 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:58,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 187 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 04:41:58,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 04:41:58,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2024-11-14 04:41:58,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 48 states have internal predecessors, (52), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 04:41:58,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 130 transitions. [2024-11-14 04:41:58,295 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 130 transitions. Word has length 135 [2024-11-14 04:41:58,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:58,295 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 130 transitions. [2024-11-14 04:41:58,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:41:58,295 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 130 transitions. [2024-11-14 04:41:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 04:41:58,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:58,296 INFO L215 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:58,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 04:41:58,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:58,497 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:41:58,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:58,497 INFO L85 PathProgramCache]: Analyzing trace with hash -963888989, now seen corresponding path program 1 times [2024-11-14 04:41:58,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:58,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542543727] [2024-11-14 04:41:58,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:58,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:41:58,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:58,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542543727] [2024-11-14 04:41:58,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542543727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:41:58,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939170361] [2024-11-14 04:41:58,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:58,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:58,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:58,647 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:58,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 04:41:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:58,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:41:58,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:41:58,968 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:41:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 2 proven. 33 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:41:59,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939170361] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:41:59,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [295914447] [2024-11-14 04:41:59,206 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2024-11-14 04:41:59,207 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:41:59,207 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:41:59,207 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:41:59,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:42:01,426 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:42:01,427 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:42:13,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [295914447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:13,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:42:13,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [5, 7, 7] total 70 [2024-11-14 04:42:13,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806846819] [2024-11-14 04:42:13,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:13,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-14 04:42:13,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:13,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-14 04:42:13,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1482, Invalid=3488, Unknown=0, NotChecked=0, Total=4970 [2024-11-14 04:42:13,430 INFO L87 Difference]: Start difference. First operand 89 states and 130 transitions. Second operand has 58 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:42:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:15,593 INFO L93 Difference]: Finished difference Result 99 states and 142 transitions. [2024-11-14 04:42:15,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-14 04:42:15,594 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 134 [2024-11-14 04:42:15,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:15,595 INFO L225 Difference]: With dead ends: 99 [2024-11-14 04:42:15,595 INFO L226 Difference]: Without dead ends: 98 [2024-11-14 04:42:15,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 333 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1281 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=1482, Invalid=3488, Unknown=0, NotChecked=0, Total=4970 [2024-11-14 04:42:15,596 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 29 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:15,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 191 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 04:42:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-14 04:42:15,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2024-11-14 04:42:15,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 54 states have internal predecessors, (59), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 04:42:15,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2024-11-14 04:42:15,615 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 134 [2024-11-14 04:42:15,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:15,616 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2024-11-14 04:42:15,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:42:15,616 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2024-11-14 04:42:15,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 04:42:15,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:15,617 INFO L215 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:15,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 04:42:15,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:15,818 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:42:15,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:15,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2110448533, now seen corresponding path program 1 times [2024-11-14 04:42:15,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:15,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130683340] [2024-11-14 04:42:15,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:15,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 10 proven. 58 refuted. 0 times theorem prover too weak. 1192 trivial. 0 not checked. [2024-11-14 04:42:15,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:15,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130683340] [2024-11-14 04:42:15,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130683340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:42:15,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197940368] [2024-11-14 04:42:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:15,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:15,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:15,996 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:16,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 04:42:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:16,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:42:16,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:42:16,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:42:16,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:42:16,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197940368] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:42:16,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [962306886] [2024-11-14 04:42:16,516 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2024-11-14 04:42:16,518 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:42:16,518 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:42:16,518 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:42:16,518 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:42:18,425 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:42:18,426 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:42:30,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [962306886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:30,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:42:30,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [5, 5, 5] total 64 [2024-11-14 04:42:30,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165156451] [2024-11-14 04:42:30,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:30,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-14 04:42:30,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:30,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-14 04:42:30,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1286, Invalid=2874, Unknown=0, NotChecked=0, Total=4160 [2024-11-14 04:42:30,074 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 58 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:42:32,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:32,691 INFO L93 Difference]: Finished difference Result 104 states and 149 transitions. [2024-11-14 04:42:32,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-14 04:42:32,692 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 134 [2024-11-14 04:42:32,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:32,693 INFO L225 Difference]: With dead ends: 104 [2024-11-14 04:42:32,693 INFO L226 Difference]: Without dead ends: 103 [2024-11-14 04:42:32,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 339 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=1286, Invalid=2874, Unknown=0, NotChecked=0, Total=4160 [2024-11-14 04:42:32,695 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 29 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:32,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 239 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-14 04:42:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-14 04:42:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 96. [2024-11-14 04:42:32,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 54 states have internal predecessors, (59), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 04:42:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2024-11-14 04:42:32,714 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 134 [2024-11-14 04:42:32,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:32,715 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2024-11-14 04:42:32,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:42:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2024-11-14 04:42:32,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-14 04:42:32,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:32,716 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:32,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 04:42:32,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 04:42:32,917 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:42:32,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:32,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1875099032, now seen corresponding path program 1 times [2024-11-14 04:42:32,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:32,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686863351] [2024-11-14 04:42:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:32,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:42:33,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:33,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686863351] [2024-11-14 04:42:33,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686863351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:42:33,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571988778] [2024-11-14 04:42:33,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:33,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:33,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:33,062 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:33,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 04:42:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:33,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:42:33,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:42:33,323 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:42:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:42:33,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571988778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:42:33,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1940766012] [2024-11-14 04:42:33,616 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 04:42:33,617 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:42:33,617 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:42:33,617 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:42:33,617 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:42:35,734 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:42:35,735 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:42:48,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1940766012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:48,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:42:48,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [6, 6, 6] total 71 [2024-11-14 04:42:48,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825254896] [2024-11-14 04:42:48,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:48,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-14 04:42:48,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:48,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-14 04:42:48,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=3628, Unknown=0, NotChecked=0, Total=5112 [2024-11-14 04:42:48,418 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 60 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:42:51,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:51,134 INFO L93 Difference]: Finished difference Result 104 states and 148 transitions. [2024-11-14 04:42:51,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-14 04:42:51,135 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 137 [2024-11-14 04:42:51,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:51,136 INFO L225 Difference]: With dead ends: 104 [2024-11-14 04:42:51,136 INFO L226 Difference]: Without dead ends: 102 [2024-11-14 04:42:51,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 341 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1403 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=1484, Invalid=3628, Unknown=0, NotChecked=0, Total=5112 [2024-11-14 04:42:51,138 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 37 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:51,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 199 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-14 04:42:51,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-14 04:42:51,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-14 04:42:51,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 59 states have internal predecessors, (64), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 04:42:51,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 146 transitions. [2024-11-14 04:42:51,165 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 146 transitions. Word has length 137 [2024-11-14 04:42:51,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:51,165 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 146 transitions. [2024-11-14 04:42:51,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:42:51,166 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 146 transitions. [2024-11-14 04:42:51,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-14 04:42:51,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:51,167 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:51,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 04:42:51,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 04:42:51,368 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:42:51,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:51,368 INFO L85 PathProgramCache]: Analyzing trace with hash 884298336, now seen corresponding path program 1 times [2024-11-14 04:42:51,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:51,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321494677] [2024-11-14 04:42:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:51,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:51,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:42:51,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:51,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321494677] [2024-11-14 04:42:51,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321494677] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:42:51,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975480734] [2024-11-14 04:42:51,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:51,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:42:51,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:42:51,484 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:42:51,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 04:42:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:51,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:42:51,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:42:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:42:51,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:42:51,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:42:51,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975480734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:42:51,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [539778317] [2024-11-14 04:42:51,991 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 04:42:51,991 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:42:51,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:42:51,992 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:42:51,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:42:54,129 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:42:54,130 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:43:06,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [539778317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:06,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:43:06,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [4, 4, 4] total 65 [2024-11-14 04:43:06,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733560423] [2024-11-14 04:43:06,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:06,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-14 04:43:06,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:06,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-14 04:43:06,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1330, Invalid=2960, Unknown=0, NotChecked=0, Total=4290 [2024-11-14 04:43:06,289 INFO L87 Difference]: Start difference. First operand 102 states and 146 transitions. Second operand has 60 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:43:08,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:08,760 INFO L93 Difference]: Finished difference Result 115 states and 162 transitions. [2024-11-14 04:43:08,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-14 04:43:08,761 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 137 [2024-11-14 04:43:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:08,762 INFO L225 Difference]: With dead ends: 115 [2024-11-14 04:43:08,762 INFO L226 Difference]: Without dead ends: 113 [2024-11-14 04:43:08,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 345 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1073 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=1330, Invalid=2960, Unknown=0, NotChecked=0, Total=4290 [2024-11-14 04:43:08,763 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 36 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:08,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 200 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 04:43:08,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-14 04:43:08,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2024-11-14 04:43:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 60 states have (on average 1.15) internal successors, (69), 63 states have internal predecessors, (69), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:43:08,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2024-11-14 04:43:08,783 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 137 [2024-11-14 04:43:08,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:08,784 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2024-11-14 04:43:08,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:43:08,784 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2024-11-14 04:43:08,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-14 04:43:08,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:08,785 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:08,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 04:43:08,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 04:43:08,989 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:43:08,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:08,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1603828120, now seen corresponding path program 1 times [2024-11-14 04:43:08,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:08,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978904010] [2024-11-14 04:43:08,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:08,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:09,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:43:09,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:09,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978904010] [2024-11-14 04:43:09,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978904010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:43:09,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654991675] [2024-11-14 04:43:09,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:09,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:09,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:43:09,131 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:43:09,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 04:43:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:09,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:43:09,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:43:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:43:09,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:43:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:43:09,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654991675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:43:09,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1958453478] [2024-11-14 04:43:09,627 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 04:43:09,627 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:43:09,627 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:43:09,628 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:43:09,628 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:43:11,686 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:43:11,686 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:43:23,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1958453478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:23,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:43:23,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [4, 4, 4] total 65 [2024-11-14 04:43:23,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298261615] [2024-11-14 04:43:23,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:23,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-14 04:43:23,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:23,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-14 04:43:23,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1330, Invalid=2960, Unknown=0, NotChecked=0, Total=4290 [2024-11-14 04:43:23,864 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand has 60 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:43:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:26,724 INFO L93 Difference]: Finished difference Result 115 states and 162 transitions. [2024-11-14 04:43:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-14 04:43:26,724 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 137 [2024-11-14 04:43:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:26,726 INFO L225 Difference]: With dead ends: 115 [2024-11-14 04:43:26,726 INFO L226 Difference]: Without dead ends: 113 [2024-11-14 04:43:26,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 345 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=1330, Invalid=2960, Unknown=0, NotChecked=0, Total=4290 [2024-11-14 04:43:26,727 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 35 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:26,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 209 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-14 04:43:26,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-14 04:43:26,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 102. [2024-11-14 04:43:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 59 states have internal predecessors, (64), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 04:43:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 146 transitions. [2024-11-14 04:43:26,754 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 146 transitions. Word has length 137 [2024-11-14 04:43:26,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:26,755 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 146 transitions. [2024-11-14 04:43:26,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:43:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 146 transitions. [2024-11-14 04:43:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-14 04:43:26,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:26,756 INFO L215 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:26,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 04:43:26,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 04:43:26,957 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:43:26,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1350280263, now seen corresponding path program 1 times [2024-11-14 04:43:26,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:26,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128478649] [2024-11-14 04:43:26,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:26,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:43:27,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:27,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128478649] [2024-11-14 04:43:27,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128478649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:43:27,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950770196] [2024-11-14 04:43:27,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:27,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:27,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:43:27,152 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:43:27,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 04:43:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:27,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 04:43:27,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:43:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:43:27,467 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:43:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-14 04:43:27,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950770196] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:43:27,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [46726498] [2024-11-14 04:43:27,748 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-14 04:43:27,748 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:43:27,748 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:43:27,748 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:43:27,748 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:43:29,844 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:43:29,845 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:43:42,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [46726498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:42,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:43:42,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [9, 9, 9] total 78 [2024-11-14 04:43:42,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168760940] [2024-11-14 04:43:42,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:42,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2024-11-14 04:43:42,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:42,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2024-11-14 04:43:42,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1630, Invalid=4532, Unknown=0, NotChecked=0, Total=6162 [2024-11-14 04:43:42,924 INFO L87 Difference]: Start difference. First operand 102 states and 146 transitions. Second operand has 59 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:43:45,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:45,540 INFO L93 Difference]: Finished difference Result 102 states and 146 transitions. [2024-11-14 04:43:45,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-14 04:43:45,541 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 136 [2024-11-14 04:43:45,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:45,542 INFO L225 Difference]: With dead ends: 102 [2024-11-14 04:43:45,542 INFO L226 Difference]: Without dead ends: 101 [2024-11-14 04:43:45,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 335 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1759 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=1630, Invalid=4532, Unknown=0, NotChecked=0, Total=6162 [2024-11-14 04:43:45,544 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 26 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 1799 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:45,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 229 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1799 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-14 04:43:45,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-14 04:43:45,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2024-11-14 04:43:45,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 56 states have internal predecessors, (61), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 04:43:45,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 143 transitions. [2024-11-14 04:43:45,570 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 143 transitions. Word has length 136 [2024-11-14 04:43:45,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:45,570 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 143 transitions. [2024-11-14 04:43:45,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 04:43:45,570 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 143 transitions. [2024-11-14 04:43:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-14 04:43:45,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:45,571 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:45,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 04:43:45,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:45,776 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:43:45,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:45,776 INFO L85 PathProgramCache]: Analyzing trace with hash 497862204, now seen corresponding path program 1 times [2024-11-14 04:43:45,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:45,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404866523] [2024-11-14 04:43:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:45,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:45,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:43:45,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:45,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404866523] [2024-11-14 04:43:45,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404866523] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:43:45,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83097769] [2024-11-14 04:43:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:45,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:45,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:43:45,956 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:43:45,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 04:43:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:46,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:43:46,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:43:46,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:43:46,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:43:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:43:46,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83097769] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:43:46,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2034795567] [2024-11-14 04:43:46,482 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 04:43:46,482 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:43:46,482 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:43:46,482 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:43:46,482 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:43:48,426 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:43:48,427 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:44:01,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2034795567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:01,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:44:01,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [8, 6, 6] total 75 [2024-11-14 04:44:01,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39948273] [2024-11-14 04:44:01,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:01,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-14 04:44:01,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:01,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-14 04:44:01,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1580, Invalid=4120, Unknown=0, NotChecked=0, Total=5700 [2024-11-14 04:44:01,889 INFO L87 Difference]: Start difference. First operand 99 states and 143 transitions. Second operand has 61 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:44:05,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:05,027 INFO L93 Difference]: Finished difference Result 112 states and 159 transitions. [2024-11-14 04:44:05,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-14 04:44:05,028 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 139 [2024-11-14 04:44:05,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:05,029 INFO L225 Difference]: With dead ends: 112 [2024-11-14 04:44:05,029 INFO L226 Difference]: Without dead ends: 110 [2024-11-14 04:44:05,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 345 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1401 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=1580, Invalid=4120, Unknown=0, NotChecked=0, Total=5700 [2024-11-14 04:44:05,030 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 30 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 2055 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:05,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 176 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2055 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-14 04:44:05,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-14 04:44:05,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2024-11-14 04:44:05,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 58 states have (on average 1.1379310344827587) internal successors, (66), 60 states have internal predecessors, (66), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:44:05,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2024-11-14 04:44:05,060 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 139 [2024-11-14 04:44:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:05,061 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2024-11-14 04:44:05,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:44:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2024-11-14 04:44:05,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-14 04:44:05,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:05,062 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:05,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 04:44:05,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:05,267 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:44:05,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:05,268 INFO L85 PathProgramCache]: Analyzing trace with hash 476249972, now seen corresponding path program 1 times [2024-11-14 04:44:05,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:05,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812593745] [2024-11-14 04:44:05,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:05,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:05,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:44:05,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:05,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812593745] [2024-11-14 04:44:05,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812593745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:05,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761140288] [2024-11-14 04:44:05,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:05,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:05,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:05,417 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:05,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 04:44:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:05,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:44:05,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:44:05,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:05,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:44:05,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761140288] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:05,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1643476509] [2024-11-14 04:44:05,977 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 04:44:05,977 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:05,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:05,978 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:05,978 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:08,096 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:44:08,096 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:44:21,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1643476509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:21,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:44:21,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [6, 6, 6] total 72 [2024-11-14 04:44:21,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150938041] [2024-11-14 04:44:21,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:21,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-14 04:44:21,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:21,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-14 04:44:21,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1495, Invalid=3761, Unknown=0, NotChecked=0, Total=5256 [2024-11-14 04:44:21,596 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 61 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:44:24,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:24,101 INFO L93 Difference]: Finished difference Result 112 states and 159 transitions. [2024-11-14 04:44:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-14 04:44:24,102 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 139 [2024-11-14 04:44:24,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:24,102 INFO L225 Difference]: With dead ends: 112 [2024-11-14 04:44:24,102 INFO L226 Difference]: Without dead ends: 110 [2024-11-14 04:44:24,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 346 SyntacticMatches, 4 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1466 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=1495, Invalid=3761, Unknown=0, NotChecked=0, Total=5256 [2024-11-14 04:44:24,103 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 31 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:24,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 292 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1805 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 04:44:24,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-14 04:44:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 99. [2024-11-14 04:44:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 56 states have internal predecessors, (61), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 04:44:24,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 143 transitions. [2024-11-14 04:44:24,119 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 143 transitions. Word has length 139 [2024-11-14 04:44:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:24,119 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 143 transitions. [2024-11-14 04:44:24,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:44:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 143 transitions. [2024-11-14 04:44:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-14 04:44:24,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:24,120 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:24,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 04:44:24,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:24,321 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:44:24,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:24,321 INFO L85 PathProgramCache]: Analyzing trace with hash -514550724, now seen corresponding path program 1 times [2024-11-14 04:44:24,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:24,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167844823] [2024-11-14 04:44:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:24,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:44:24,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:24,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167844823] [2024-11-14 04:44:24,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167844823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:24,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137753365] [2024-11-14 04:44:24,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:24,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:24,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:24,435 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:24,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 04:44:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:24,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:44:24,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:44:24,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:44:24,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137753365] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:24,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1645141991] [2024-11-14 04:44:24,981 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 04:44:24,981 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:24,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:24,982 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:24,982 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:27,222 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:44:27,223 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:44:39,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1645141991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:39,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:44:39,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [4, 4, 4] total 66 [2024-11-14 04:44:39,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726725585] [2024-11-14 04:44:39,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:39,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-14 04:44:39,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:39,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-14 04:44:39,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1337, Invalid=3085, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 04:44:39,913 INFO L87 Difference]: Start difference. First operand 99 states and 143 transitions. Second operand has 61 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:44:42,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:42,696 INFO L93 Difference]: Finished difference Result 105 states and 150 transitions. [2024-11-14 04:44:42,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-14 04:44:42,696 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 139 [2024-11-14 04:44:42,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:42,697 INFO L225 Difference]: With dead ends: 105 [2024-11-14 04:44:42,697 INFO L226 Difference]: Without dead ends: 103 [2024-11-14 04:44:42,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 350 SyntacticMatches, 4 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=1337, Invalid=3085, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 04:44:42,700 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 32 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:42,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 163 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 04:44:42,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-14 04:44:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2024-11-14 04:44:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 54 states have (on average 1.1296296296296295) internal successors, (61), 56 states have internal predecessors, (61), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 04:44:42,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 143 transitions. [2024-11-14 04:44:42,728 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 143 transitions. Word has length 139 [2024-11-14 04:44:42,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:42,729 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 143 transitions. [2024-11-14 04:44:42,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:44:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 143 transitions. [2024-11-14 04:44:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-14 04:44:42,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:42,730 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:42,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 04:44:42,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:42,931 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:44:42,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:42,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1178035519, now seen corresponding path program 1 times [2024-11-14 04:44:42,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:42,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542142737] [2024-11-14 04:44:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:42,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:44:43,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:43,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542142737] [2024-11-14 04:44:43,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542142737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:43,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628411594] [2024-11-14 04:44:43,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:43,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:43,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:43,094 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:43,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 04:44:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:43,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:44:43,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:44:43,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:43,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:44:43,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628411594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:43,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1974730465] [2024-11-14 04:44:43,600 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 04:44:43,600 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:43,600 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:43,601 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:43,601 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:46,053 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:44:46,054 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:45:00,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1974730465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:00,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:45:00,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [7, 7, 7] total 75 [2024-11-14 04:45:00,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185589269] [2024-11-14 04:45:00,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:00,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-14 04:45:00,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:45:00,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-14 04:45:00,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1520, Invalid=4180, Unknown=0, NotChecked=0, Total=5700 [2024-11-14 04:45:00,044 INFO L87 Difference]: Start difference. First operand 99 states and 143 transitions. Second operand has 62 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 28 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:45:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:02,799 INFO L93 Difference]: Finished difference Result 109 states and 153 transitions. [2024-11-14 04:45:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-14 04:45:02,799 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 28 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 141 [2024-11-14 04:45:02,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:02,800 INFO L225 Difference]: With dead ends: 109 [2024-11-14 04:45:02,800 INFO L226 Difference]: Without dead ends: 94 [2024-11-14 04:45:02,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 350 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1682 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=1520, Invalid=4180, Unknown=0, NotChecked=0, Total=5700 [2024-11-14 04:45:02,802 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 32 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:02,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 184 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 04:45:02,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-14 04:45:02,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-14 04:45:02,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 50 states have (on average 1.12) internal successors, (56), 52 states have internal predecessors, (56), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 04:45:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2024-11-14 04:45:02,828 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 141 [2024-11-14 04:45:02,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:02,829 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2024-11-14 04:45:02,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 28 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:45:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2024-11-14 04:45:02,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-14 04:45:02,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:02,830 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:45:02,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 04:45:03,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-14 04:45:03,031 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:45:03,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1531008519, now seen corresponding path program 1 times [2024-11-14 04:45:03,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:45:03,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437997388] [2024-11-14 04:45:03,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:03,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:45:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:03,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:45:03,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:45:03,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437997388] [2024-11-14 04:45:03,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437997388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:45:03,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133791363] [2024-11-14 04:45:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:03,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:03,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:45:03,125 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:45:03,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 04:45:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:03,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:45:03,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:45:03,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:45:03,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133791363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:03,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1238285165] [2024-11-14 04:45:03,561 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 04:45:03,561 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:45:03,561 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:45:03,561 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:45:03,561 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:45:05,759 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:45:05,760 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:45:18,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1238285165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:18,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:45:18,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [5, 5, 5] total 67 [2024-11-14 04:45:18,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826181999] [2024-11-14 04:45:18,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:18,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-14 04:45:18,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:45:18,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-14 04:45:18,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1300, Invalid=3256, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 04:45:18,945 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 62 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 28 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:45:21,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:21,759 INFO L93 Difference]: Finished difference Result 109 states and 153 transitions. [2024-11-14 04:45:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-14 04:45:21,759 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 28 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 141 [2024-11-14 04:45:21,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:21,760 INFO L225 Difference]: With dead ends: 109 [2024-11-14 04:45:21,760 INFO L226 Difference]: Without dead ends: 101 [2024-11-14 04:45:21,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 355 SyntacticMatches, 5 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=1300, Invalid=3256, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 04:45:21,761 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 30 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:21,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 243 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1878 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 04:45:21,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-14 04:45:21,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2024-11-14 04:45:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 54 states have (on average 1.1111111111111112) internal successors, (60), 56 states have internal predecessors, (60), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 04:45:21,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2024-11-14 04:45:21,781 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 142 transitions. Word has length 141 [2024-11-14 04:45:21,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:21,781 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 142 transitions. [2024-11-14 04:45:21,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 28 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:45:21,781 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 142 transitions. [2024-11-14 04:45:21,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-14 04:45:21,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:21,782 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:45:21,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 04:45:21,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-14 04:45:21,982 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:45:21,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:21,983 INFO L85 PathProgramCache]: Analyzing trace with hash -2058477249, now seen corresponding path program 1 times [2024-11-14 04:45:21,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:45:21,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6727291] [2024-11-14 04:45:21,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:21,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:45:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 14 proven. 56 refuted. 0 times theorem prover too weak. 1262 trivial. 0 not checked. [2024-11-14 04:45:22,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:45:22,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6727291] [2024-11-14 04:45:22,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6727291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:45:22,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951543934] [2024-11-14 04:45:22,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:22,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:22,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:45:22,111 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:45:22,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 04:45:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:22,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:45:22,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:22,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:45:22,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:45:22,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951543934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:22,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1482565680] [2024-11-14 04:45:22,544 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 04:45:22,544 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:45:22,544 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:45:22,544 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:45:22,544 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:45:24,824 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:45:24,825 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:45:38,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1482565680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:38,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:45:38,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [5, 5, 5] total 67 [2024-11-14 04:45:38,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633188698] [2024-11-14 04:45:38,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:38,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-14 04:45:38,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:45:38,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-14 04:45:38,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1305, Invalid=3251, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 04:45:38,054 INFO L87 Difference]: Start difference. First operand 99 states and 142 transitions. Second operand has 61 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 27 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:45:41,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:41,009 INFO L93 Difference]: Finished difference Result 109 states and 152 transitions. [2024-11-14 04:45:41,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-14 04:45:41,010 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 27 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 141 [2024-11-14 04:45:41,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:41,011 INFO L225 Difference]: With dead ends: 109 [2024-11-14 04:45:41,011 INFO L226 Difference]: Without dead ends: 101 [2024-11-14 04:45:41,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 354 SyntacticMatches, 7 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1260 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=1305, Invalid=3251, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 04:45:41,012 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 29 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:41,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 223 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 04:45:41,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-14 04:45:41,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 94. [2024-11-14 04:45:41,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 50 states have (on average 1.1) internal successors, (55), 52 states have internal predecessors, (55), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 04:45:41,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 135 transitions. [2024-11-14 04:45:41,031 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 135 transitions. Word has length 141 [2024-11-14 04:45:41,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:41,031 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 135 transitions. [2024-11-14 04:45:41,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 27 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:45:41,031 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 135 transitions. [2024-11-14 04:45:41,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-14 04:45:41,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:41,032 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:45:41,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 04:45:41,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 04:45:41,233 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:45:41,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:41,233 INFO L85 PathProgramCache]: Analyzing trace with hash 528679192, now seen corresponding path program 1 times [2024-11-14 04:45:41,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:45:41,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112112968] [2024-11-14 04:45:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:41,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:45:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:41,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:45:41,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:45:41,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112112968] [2024-11-14 04:45:41,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112112968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:45:41,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123610288] [2024-11-14 04:45:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:41,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:41,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:45:41,388 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:45:41,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 04:45:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:41,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:45:41,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:41,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:45:41,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:41,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:45:41,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123610288] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:41,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [253893819] [2024-11-14 04:45:41,910 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 04:45:41,910 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:45:41,910 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:45:41,910 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:45:41,910 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:45:44,268 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:45:44,269 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:45:58,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [253893819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:58,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:45:58,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [10, 6, 6] total 78 [2024-11-14 04:45:58,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550462355] [2024-11-14 04:45:58,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:58,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-14 04:45:58,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:45:58,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-14 04:45:58,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1619, Invalid=4387, Unknown=0, NotChecked=0, Total=6006 [2024-11-14 04:45:58,237 INFO L87 Difference]: Start difference. First operand 94 states and 135 transitions. Second operand has 61 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:46:00,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:46:00,664 INFO L93 Difference]: Finished difference Result 98 states and 138 transitions. [2024-11-14 04:46:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-14 04:46:00,665 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 141 [2024-11-14 04:46:00,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:46:00,665 INFO L225 Difference]: With dead ends: 98 [2024-11-14 04:46:00,665 INFO L226 Difference]: Without dead ends: 86 [2024-11-14 04:46:00,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 352 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1410 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=1619, Invalid=4387, Unknown=0, NotChecked=0, Total=6006 [2024-11-14 04:46:00,667 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 24 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:46:00,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 176 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 04:46:00,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-14 04:46:00,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-14 04:46:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 45 states have internal predecessors, (47), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 04:46:00,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 125 transitions. [2024-11-14 04:46:00,682 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 125 transitions. Word has length 141 [2024-11-14 04:46:00,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:46:00,682 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 125 transitions. [2024-11-14 04:46:00,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:46:00,682 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 125 transitions. [2024-11-14 04:46:00,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-14 04:46:00,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:46:00,683 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:46:00,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 04:46:00,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 04:46:00,884 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:46:00,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:46:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1365474275, now seen corresponding path program 1 times [2024-11-14 04:46:00,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:46:00,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812929276] [2024-11-14 04:46:00,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:00,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:46:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:46:01,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:46:01,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812929276] [2024-11-14 04:46:01,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812929276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:46:01,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629731940] [2024-11-14 04:46:01,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:01,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:01,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:46:01,025 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:46:01,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 04:46:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:01,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:46:01,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:46:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:46:01,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:46:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:46:01,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629731940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:46:01,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [301788999] [2024-11-14 04:46:01,563 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-14 04:46:01,563 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:46:01,563 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:46:01,563 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:46:01,563 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:46:03,848 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:46:03,849 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:46:18,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [301788999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:46:18,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:46:18,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [9, 7, 7] total 80 [2024-11-14 04:46:18,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214053134] [2024-11-14 04:46:18,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:46:18,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-14 04:46:18,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:46:18,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-14 04:46:18,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1629, Invalid=4691, Unknown=0, NotChecked=0, Total=6320 [2024-11-14 04:46:18,405 INFO L87 Difference]: Start difference. First operand 86 states and 125 transitions. Second operand has 62 states, 25 states have (on average 1.32) internal successors, (33), 28 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:46:21,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:46:21,564 INFO L93 Difference]: Finished difference Result 101 states and 141 transitions. [2024-11-14 04:46:21,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-14 04:46:21,565 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 25 states have (on average 1.32) internal successors, (33), 28 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 143 [2024-11-14 04:46:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:46:21,566 INFO L225 Difference]: With dead ends: 101 [2024-11-14 04:46:21,566 INFO L226 Difference]: Without dead ends: 79 [2024-11-14 04:46:21,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 354 SyntacticMatches, 4 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1698 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=1629, Invalid=4691, Unknown=0, NotChecked=0, Total=6320 [2024-11-14 04:46:21,567 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 26 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:46:21,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 203 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-14 04:46:21,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-14 04:46:21,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-14 04:46:21,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 39 states have internal predecessors, (40), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 04:46:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 116 transitions. [2024-11-14 04:46:21,584 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 116 transitions. Word has length 143 [2024-11-14 04:46:21,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:46:21,584 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 116 transitions. [2024-11-14 04:46:21,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 25 states have (on average 1.32) internal successors, (33), 28 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:46:21,584 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 116 transitions. [2024-11-14 04:46:21,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-14 04:46:21,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:46:21,585 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:46:21,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 04:46:21,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 04:46:21,785 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:46:21,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:46:21,786 INFO L85 PathProgramCache]: Analyzing trace with hash 728389915, now seen corresponding path program 1 times [2024-11-14 04:46:21,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:46:21,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355650099] [2024-11-14 04:46:21,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:21,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:46:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:46:21,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:46:21,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355650099] [2024-11-14 04:46:21,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355650099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:46:21,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981924647] [2024-11-14 04:46:21,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:21,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:21,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:46:21,944 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:46:21,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 04:46:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:22,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:46:22,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:46:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:46:22,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:46:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 4 proven. 32 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:46:22,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981924647] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:46:22,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1264169488] [2024-11-14 04:46:22,488 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-14 04:46:22,488 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:46:22,488 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:46:22,488 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:46:22,488 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:46:24,488 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:46:24,489 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:46:38,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1264169488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:46:38,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:46:38,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [7, 7, 7] total 76 [2024-11-14 04:46:38,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564514094] [2024-11-14 04:46:38,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:46:38,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-14 04:46:38,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:46:38,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-14 04:46:38,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1533, Invalid=4319, Unknown=0, NotChecked=0, Total=5852 [2024-11-14 04:46:38,671 INFO L87 Difference]: Start difference. First operand 79 states and 116 transitions. Second operand has 63 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:46:41,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:46:41,241 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2024-11-14 04:46:41,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-14 04:46:41,241 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 143 [2024-11-14 04:46:41,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:46:41,242 INFO L225 Difference]: With dead ends: 87 [2024-11-14 04:46:41,242 INFO L226 Difference]: Without dead ends: 72 [2024-11-14 04:46:41,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 355 SyntacticMatches, 4 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1750 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=1533, Invalid=4319, Unknown=0, NotChecked=0, Total=5852 [2024-11-14 04:46:41,243 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 15 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1725 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:46:41,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 127 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1725 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-14 04:46:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-14 04:46:41,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-14 04:46:41,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 33 states have (on average 1.0) internal successors, (33), 33 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:46:41,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 107 transitions. [2024-11-14 04:46:41,265 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 107 transitions. Word has length 143 [2024-11-14 04:46:41,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:46:41,266 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 107 transitions. [2024-11-14 04:46:41,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:46:41,266 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 107 transitions. [2024-11-14 04:46:41,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-14 04:46:41,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:46:41,267 INFO L215 NwaCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:46:41,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-14 04:46:41,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 04:46:41,468 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-14 04:46:41,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:46:41,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1081362915, now seen corresponding path program 1 times [2024-11-14 04:46:41,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:46:41,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517735792] [2024-11-14 04:46:41,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:41,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:46:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:46:41,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:46:41,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517735792] [2024-11-14 04:46:41,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517735792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:46:41,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913382747] [2024-11-14 04:46:41,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:41,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:41,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:46:41,589 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:46:41,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 04:46:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:41,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:46:41,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:46:41,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:46:41,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:46:42,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 1296 trivial. 0 not checked. [2024-11-14 04:46:42,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913382747] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:46:42,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [803363074] [2024-11-14 04:46:42,018 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-14 04:46:42,018 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:46:42,018 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:46:42,018 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:46:42,018 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:46:44,049 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:46:44,050 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:46:57,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [803363074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:46:57,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:46:57,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [5, 5, 5] total 68 [2024-11-14 04:46:57,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119678463] [2024-11-14 04:46:57,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:46:57,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-14 04:46:57,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:46:57,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-14 04:46:57,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1307, Invalid=3385, Unknown=0, NotChecked=0, Total=4692 [2024-11-14 04:46:57,692 INFO L87 Difference]: Start difference. First operand 72 states and 107 transitions. Second operand has 63 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:47:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:00,639 INFO L93 Difference]: Finished difference Result 72 states and 107 transitions. [2024-11-14 04:47:00,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-14 04:47:00,640 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 143 [2024-11-14 04:47:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:00,641 INFO L225 Difference]: With dead ends: 72 [2024-11-14 04:47:00,641 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:47:00,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 360 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1193 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=1307, Invalid=3385, Unknown=0, NotChecked=0, Total=4692 [2024-11-14 04:47:00,642 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:00,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 04:47:00,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:47:00,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:47:00,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:47:00,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:47:00,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2024-11-14 04:47:00,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:00,643 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:47:00,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 25 states have (on average 1.32) internal successors, (33), 29 states have internal predecessors, (33), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:47:00,643 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:47:00,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:47:00,647 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-14 04:47:00,647 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-14 04:47:00,647 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-14 04:47:00,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-14 04:47:00,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-14 04:47:00,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-14 04:47:00,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-14 04:47:00,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-14 04:47:00,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-14 04:47:00,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-14 04:47:00,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-14 04:47:00,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-14 04:47:00,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-14 04:47:00,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-14 04:47:00,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-14 04:47:00,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-14 04:47:00,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-14 04:47:00,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:00,852 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:47:00,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:47:05,356 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:47:05,370 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:47:05,371 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 04:47:05,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:47:05 BoogieIcfgContainer [2024-11-14 04:47:05,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:47:05,375 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:47:05,375 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:47:05,375 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:47:05,376 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:38:53" (3/4) ... [2024-11-14 04:47:05,377 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:47:05,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume [2024-11-14 04:47:05,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-14 04:47:05,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-14 04:47:05,385 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:47:05,386 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:47:05,486 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:47:05,486 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:47:05,486 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:47:05,489 INFO L158 Benchmark]: Toolchain (without parser) took 493400.47ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 117.1MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 253.6MB. Max. memory is 16.1GB. [2024-11-14 04:47:05,491 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:47:05,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.02ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 105.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:47:05,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.14ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 103.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:47:05,492 INFO L158 Benchmark]: Boogie Preprocessor took 45.07ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 102.9MB in the end (delta: 925.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:47:05,492 INFO L158 Benchmark]: RCFGBuilder took 634.01ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 85.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:47:05,492 INFO L158 Benchmark]: TraceAbstraction took 492242.96ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 84.6MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 875.5MB. Max. memory is 16.1GB. [2024-11-14 04:47:05,493 INFO L158 Benchmark]: Witness Printer took 111.64ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:47:05,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.02ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 105.3MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.14ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 103.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.07ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 102.9MB in the end (delta: 925.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 634.01ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 85.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 492242.96ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 84.6MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 875.5MB. Max. memory is 16.1GB. * Witness Printer took 111.64ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 8.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier * 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: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 93 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 487.7s, OverallIterations: 29, TraceHistogramMax: 37, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 62.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 955 SdHoareTripleChecker+Valid, 60.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 874 mSDsluCounter, 5605 SdHoareTripleChecker+Invalid, 55.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3632 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41426 IncrementalHoareTripleChecker+Invalid, 41445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 1973 mSDtfsCounter, 41426 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11336 GetRequests, 9391 SyntacticMatches, 99 SemanticMatches, 1846 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30649 ImplicationChecksByTransitivity, 334.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=17, InterpolantAutomatonStates: 1620, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 29 MinimizatonAttempts, 80 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 7597 NumberOfCodeBlocks, 7597 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 11252 ConstructedInterpolants, 0 QuantifiedInterpolants, 35960 SizeOfPredicates, 35 NumberOfNonLiveVariables, 7986 ConjunctsInSsa, 181 ConjunctsInUnsatCore, 85 InterpolantComputations, 1 PerfectInterpolantSequences, 105513/108318 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: 65.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 56, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 2753, DAG_INTERPRETER_EARLY_EXITS: 5, TOOLS_POST_APPLICATIONS: 750, TOOLS_POST_TIME: 3.8s, TOOLS_POST_CALL_APPLICATIONS: 3042, TOOLS_POST_CALL_TIME: 27.6s, TOOLS_POST_RETURN_APPLICATIONS: 2028, TOOLS_POST_RETURN_TIME: 11.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 5820, TOOLS_QUANTIFIERELIM_TIME: 41.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.1s, FLUID_QUERIES: 5693, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4354, DOMAIN_JOIN_TIME: 16.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 2753, DOMAIN_ISBOTTOM_TIME: 3.8s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 2028, CALL_SUMMARIZER_CACHE_MISSES: 28, 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: 1.6s, DAG_COMPRESSION_PROCESSED_NODES: 163716, DAG_COMPRESSION_RETAINED_NODES: 5788, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - ProcedureContractResult [Line: 19]: Procedure Contract for assume Derived contract for procedure assume. Ensures: (cond != 0) RESULT: Ultimate proved your program to be correct! [2024-11-14 04:47:05,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ad1126-0b5d-4d7c-9949-35029cb6ef08/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