./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.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_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/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_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/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_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/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 5bfe5681b6d73d5859a119345279b9da165675f4eb4d814fdf24f92881f7a27f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:24:35,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:24:35,398 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:24:35,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:24:35,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:24:35,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:24:35,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:24:35,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:24:35,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:24:35,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:24:35,460 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:24:35,461 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:24:35,462 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:24:35,462 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:24:35,462 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:24:35,462 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:24:35,462 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:24:35,463 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:24:35,463 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:24:35,463 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:24:35,463 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:24:35,463 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:24:35,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:24:35,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:24:35,464 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:24:35,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:24:35,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:24:35,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:24:35,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:24:35,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:24:35,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:24:35,466 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:24:35,466 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:24:35,466 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:24:35,466 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:24:35,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:24:35,466 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:24:35,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:24:35,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:24:35,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:24:35,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:35,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:24:35,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:24:35,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:24:35,467 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:24:35,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:24:35,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:24:35,467 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:24:35,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:24:35,467 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_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/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 -> 5bfe5681b6d73d5859a119345279b9da165675f4eb4d814fdf24f92881f7a27f [2024-11-14 05:24:35,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:24:35,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:24:35,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:24:35,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:24:35,827 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:24:35,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c Unable to find full path for "g++" [2024-11-14 05:24:37,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:24:38,251 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:24:38,252 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound50.c [2024-11-14 05:24:38,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/data/ae2f08571/76440373b0c8458991779afd768a8b14/FLAG566b4cfb9 [2024-11-14 05:24:38,277 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/data/ae2f08571/76440373b0c8458991779afd768a8b14 [2024-11-14 05:24:38,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:24:38,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:24:38,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:38,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:24:38,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:24:38,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ecde773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38, skipping insertion in model container [2024-11-14 05:24:38,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:24:38,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:38,523 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:24:38,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:38,560 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:24:38,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38 WrapperNode [2024-11-14 05:24:38,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:38,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:38,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:24:38,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:24:38,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,618 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 152 [2024-11-14 05:24:38,618 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:38,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:24:38,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:24:38,624 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:24:38,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:24:38,651 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:24:38,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:24:38,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:24:38,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (1/1) ... [2024-11-14 05:24:38,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:38,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:38,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:24:38,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:24:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:24:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:24:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:24:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:24:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:24:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:24:38,825 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:24:38,828 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:24:39,779 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-14 05:24:39,779 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:24:39,862 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:24:39,863 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:24:39,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:39 BoogieIcfgContainer [2024-11-14 05:24:39,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:24:39,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:24:39,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:24:39,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:24:39,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:24:38" (1/3) ... [2024-11-14 05:24:39,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617d31ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:39, skipping insertion in model container [2024-11-14 05:24:39,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:38" (2/3) ... [2024-11-14 05:24:39,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617d31ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:39, skipping insertion in model container [2024-11-14 05:24:39,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:39" (3/3) ... [2024-11-14 05:24:39,884 INFO L112 eAbstractionObserver]: Analyzing ICFG ps6-ll_unwindbound50.c [2024-11-14 05:24:39,903 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:24:39,907 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG ps6-ll_unwindbound50.c that has 2 procedures, 219 locations, 1 initial locations, 1 loop locations, and 104 error locations. [2024-11-14 05:24:40,035 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:24:40,056 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;@24397886, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:24:40,056 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-11-14 05:24:40,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 110 states have (on average 1.9727272727272727) internal successors, (217), 214 states have internal predecessors, (217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:24:40,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 05:24:40,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:40,067 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 05:24:40,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:40,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:40,076 INFO L85 PathProgramCache]: Analyzing trace with hash 289678, now seen corresponding path program 1 times [2024-11-14 05:24:40,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:40,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401472845] [2024-11-14 05:24:40,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:40,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:40,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:40,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401472845] [2024-11-14 05:24:40,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401472845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:40,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:40,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:40,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655923495] [2024-11-14 05:24:40,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:40,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:40,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:40,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:40,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:40,330 INFO L87 Difference]: Start difference. First operand has 219 states, 110 states have (on average 1.9727272727272727) internal successors, (217), 214 states have internal predecessors, (217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:40,438 INFO L93 Difference]: Finished difference Result 305 states and 321 transitions. [2024-11-14 05:24:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:40,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 05:24:40,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:40,453 INFO L225 Difference]: With dead ends: 305 [2024-11-14 05:24:40,454 INFO L226 Difference]: Without dead ends: 190 [2024-11-14 05:24:40,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:24:40,464 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 196 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:40,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 374 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:40,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-14 05:24:40,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-14 05:24:40,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.724770642201835) internal successors, (188), 186 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:24:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 192 transitions. [2024-11-14 05:24:40,551 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 192 transitions. Word has length 3 [2024-11-14 05:24:40,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:40,552 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 192 transitions. [2024-11-14 05:24:40,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:40,553 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 192 transitions. [2024-11-14 05:24:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:24:40,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:40,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:24:40,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:24:40,556 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:40,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:40,557 INFO L85 PathProgramCache]: Analyzing trace with hash 8980065, now seen corresponding path program 1 times [2024-11-14 05:24:40,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:40,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313346645] [2024-11-14 05:24:40,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:40,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:40,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:40,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313346645] [2024-11-14 05:24:40,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313346645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:40,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:40,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:40,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909779713] [2024-11-14 05:24:40,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:40,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:40,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:40,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:40,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:40,660 INFO L87 Difference]: Start difference. First operand 190 states and 192 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:40,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:40,749 INFO L93 Difference]: Finished difference Result 278 states and 280 transitions. [2024-11-14 05:24:40,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:24:40,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 05:24:40,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:40,752 INFO L225 Difference]: With dead ends: 278 [2024-11-14 05:24:40,752 INFO L226 Difference]: Without dead ends: 194 [2024-11-14 05:24:40,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:24:40,754 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 3 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:40,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 557 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:40,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-14 05:24:40,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-14 05:24:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 113 states have (on average 1.6991150442477876) internal successors, (192), 190 states have internal predecessors, (192), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:24:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 196 transitions. [2024-11-14 05:24:40,782 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 196 transitions. Word has length 4 [2024-11-14 05:24:40,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:40,782 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 196 transitions. [2024-11-14 05:24:40,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:40,783 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 196 transitions. [2024-11-14 05:24:40,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 05:24:40,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:40,783 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 05:24:40,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:24:40,783 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:40,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:40,784 INFO L85 PathProgramCache]: Analyzing trace with hash 39909539, now seen corresponding path program 1 times [2024-11-14 05:24:40,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:40,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129229414] [2024-11-14 05:24:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:40,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:40,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:40,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:40,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129229414] [2024-11-14 05:24:40,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129229414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:40,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:40,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:24:40,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76255926] [2024-11-14 05:24:40,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:40,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:40,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:40,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:40,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:40,882 INFO L87 Difference]: Start difference. First operand 194 states and 196 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:41,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:41,560 INFO L93 Difference]: Finished difference Result 354 states and 362 transitions. [2024-11-14 05:24:41,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:41,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 05:24:41,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:41,564 INFO L225 Difference]: With dead ends: 354 [2024-11-14 05:24:41,564 INFO L226 Difference]: Without dead ends: 290 [2024-11-14 05:24:41,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:41,570 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 98 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:41,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 125 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:24:41,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-14 05:24:41,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 284. [2024-11-14 05:24:41,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 202 states have (on average 1.4405940594059405) internal successors, (291), 279 states have internal predecessors, (291), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:24:41,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 297 transitions. [2024-11-14 05:24:41,603 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 297 transitions. Word has length 6 [2024-11-14 05:24:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:41,603 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 297 transitions. [2024-11-14 05:24:41,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 297 transitions. [2024-11-14 05:24:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 05:24:41,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:41,604 INFO L215 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:41,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:24:41,605 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:41,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:41,606 INFO L85 PathProgramCache]: Analyzing trace with hash 613483401, now seen corresponding path program 1 times [2024-11-14 05:24:41,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:41,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212041053] [2024-11-14 05:24:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:41,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:41,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:41,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212041053] [2024-11-14 05:24:41,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212041053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:41,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:41,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:24:41,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154099482] [2024-11-14 05:24:41,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:41,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:41,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:41,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:41,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:41,834 INFO L87 Difference]: Start difference. First operand 284 states and 297 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:41,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:41,940 INFO L93 Difference]: Finished difference Result 308 states and 315 transitions. [2024-11-14 05:24:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:41,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-14 05:24:41,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:41,942 INFO L225 Difference]: With dead ends: 308 [2024-11-14 05:24:41,942 INFO L226 Difference]: Without dead ends: 301 [2024-11-14 05:24:41,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:41,944 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 68 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:41,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 347 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:24:41,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-14 05:24:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 283. [2024-11-14 05:24:41,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 201 states have (on average 1.4129353233830846) internal successors, (284), 278 states have internal predecessors, (284), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:24:41,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 290 transitions. [2024-11-14 05:24:41,969 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 290 transitions. Word has length 44 [2024-11-14 05:24:41,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:41,969 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 290 transitions. [2024-11-14 05:24:41,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:41,970 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 290 transitions. [2024-11-14 05:24:41,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 05:24:41,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:41,971 INFO L215 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:41,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:24:41,971 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:41,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:41,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1147033035, now seen corresponding path program 1 times [2024-11-14 05:24:41,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:41,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644088607] [2024-11-14 05:24:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:41,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:42,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:42,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:42,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644088607] [2024-11-14 05:24:42,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644088607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:42,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:42,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:42,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129500200] [2024-11-14 05:24:42,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:42,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:42,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:42,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:42,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:42,299 INFO L87 Difference]: Start difference. First operand 283 states and 290 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:43,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:43,279 INFO L93 Difference]: Finished difference Result 303 states and 308 transitions. [2024-11-14 05:24:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:43,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-14 05:24:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:43,281 INFO L225 Difference]: With dead ends: 303 [2024-11-14 05:24:43,282 INFO L226 Difference]: Without dead ends: 260 [2024-11-14 05:24:43,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:43,283 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 105 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:43,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 288 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 05:24:43,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-14 05:24:43,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 242. [2024-11-14 05:24:43,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 160 states have (on average 1.50625) internal successors, (241), 237 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:24:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 247 transitions. [2024-11-14 05:24:43,297 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 247 transitions. Word has length 46 [2024-11-14 05:24:43,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:43,298 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 247 transitions. [2024-11-14 05:24:43,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:43,298 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 247 transitions. [2024-11-14 05:24:43,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 05:24:43,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:43,299 INFO L215 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:43,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:24:43,300 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:43,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:43,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1650195189, now seen corresponding path program 1 times [2024-11-14 05:24:43,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:43,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972063966] [2024-11-14 05:24:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:43,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:43,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:43,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:43,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972063966] [2024-11-14 05:24:43,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972063966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:43,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:43,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:24:43,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105034316] [2024-11-14 05:24:43,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:43,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:43,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:43,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:43,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:43,464 INFO L87 Difference]: Start difference. First operand 242 states and 247 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:43,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:43,509 INFO L93 Difference]: Finished difference Result 244 states and 247 transitions. [2024-11-14 05:24:43,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:43,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2024-11-14 05:24:43,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:43,513 INFO L225 Difference]: With dead ends: 244 [2024-11-14 05:24:43,515 INFO L226 Difference]: Without dead ends: 242 [2024-11-14 05:24:43,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:43,517 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:43,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 371 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-14 05:24:43,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-14 05:24:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 160 states have (on average 1.49375) internal successors, (239), 237 states have internal predecessors, (239), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:24:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 245 transitions. [2024-11-14 05:24:43,540 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 245 transitions. Word has length 52 [2024-11-14 05:24:43,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:43,542 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 245 transitions. [2024-11-14 05:24:43,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:43,544 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 245 transitions. [2024-11-14 05:24:43,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 05:24:43,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:43,547 INFO L215 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:43,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:24:43,548 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:43,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:43,549 INFO L85 PathProgramCache]: Analyzing trace with hash 611486401, now seen corresponding path program 1 times [2024-11-14 05:24:43,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:43,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536732179] [2024-11-14 05:24:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:43,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:43,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [203092706] [2024-11-14 05:24:43,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:43,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:43,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:43,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:43,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:24:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:43,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:24:43,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:43,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:43,884 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:43,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:43,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536732179] [2024-11-14 05:24:43,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:43,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203092706] [2024-11-14 05:24:43,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203092706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:43,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:43,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:43,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311130618] [2024-11-14 05:24:43,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:43,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:43,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:43,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:43,890 INFO L87 Difference]: Start difference. First operand 242 states and 245 transitions. Second operand has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:44,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:44,661 INFO L93 Difference]: Finished difference Result 421 states and 435 transitions. [2024-11-14 05:24:44,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:44,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2024-11-14 05:24:44,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:44,664 INFO L225 Difference]: With dead ends: 421 [2024-11-14 05:24:44,664 INFO L226 Difference]: Without dead ends: 356 [2024-11-14 05:24:44,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:44,666 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 113 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:44,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 145 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:24:44,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-14 05:24:44,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 349. [2024-11-14 05:24:44,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 265 states have (on average 1.3584905660377358) internal successors, (360), 342 states have internal predecessors, (360), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:24:44,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 370 transitions. [2024-11-14 05:24:44,683 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 370 transitions. Word has length 57 [2024-11-14 05:24:44,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:44,684 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 370 transitions. [2024-11-14 05:24:44,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:44,684 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 370 transitions. [2024-11-14 05:24:44,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 05:24:44,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:44,687 INFO L215 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:44,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:24:44,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:44,888 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:44,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1564846337, now seen corresponding path program 1 times [2024-11-14 05:24:44,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:44,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761250888] [2024-11-14 05:24:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:44,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:45,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:45,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:45,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761250888] [2024-11-14 05:24:45,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761250888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:45,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:45,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:45,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295092776] [2024-11-14 05:24:45,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:45,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:45,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:45,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:45,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:45,124 INFO L87 Difference]: Start difference. First operand 349 states and 370 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:45,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:45,685 INFO L93 Difference]: Finished difference Result 350 states and 370 transitions. [2024-11-14 05:24:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:45,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-11-14 05:24:45,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:45,688 INFO L225 Difference]: With dead ends: 350 [2024-11-14 05:24:45,689 INFO L226 Difference]: Without dead ends: 349 [2024-11-14 05:24:45,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:45,691 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 57 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:45,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 321 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:24:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-14 05:24:45,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-14 05:24:45,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 265 states have (on average 1.3547169811320754) internal successors, (359), 342 states have internal predecessors, (359), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:24:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 369 transitions. [2024-11-14 05:24:45,718 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 369 transitions. Word has length 64 [2024-11-14 05:24:45,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:45,718 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 369 transitions. [2024-11-14 05:24:45,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 369 transitions. [2024-11-14 05:24:45,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 05:24:45,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:45,719 INFO L215 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:45,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:24:45,720 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:45,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:45,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1265596361, now seen corresponding path program 1 times [2024-11-14 05:24:45,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:45,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167294347] [2024-11-14 05:24:45,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:45,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:45,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:45,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167294347] [2024-11-14 05:24:45,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167294347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:45,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:45,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:45,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308345387] [2024-11-14 05:24:45,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:45,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:24:45,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:45,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:24:45,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:45,949 INFO L87 Difference]: Start difference. First operand 349 states and 369 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:46,118 INFO L93 Difference]: Finished difference Result 350 states and 369 transitions. [2024-11-14 05:24:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:24:46,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2024-11-14 05:24:46,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:46,121 INFO L225 Difference]: With dead ends: 350 [2024-11-14 05:24:46,123 INFO L226 Difference]: Without dead ends: 349 [2024-11-14 05:24:46,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:24:46,125 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 50 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:46,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 314 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:24:46,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-14 05:24:46,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-14 05:24:46,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 265 states have (on average 1.350943396226415) internal successors, (358), 342 states have internal predecessors, (358), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:24:46,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 368 transitions. [2024-11-14 05:24:46,153 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 368 transitions. Word has length 65 [2024-11-14 05:24:46,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:46,153 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 368 transitions. [2024-11-14 05:24:46,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:46,154 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 368 transitions. [2024-11-14 05:24:46,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 05:24:46,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:46,155 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:46,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:24:46,155 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:46,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:46,156 INFO L85 PathProgramCache]: Analyzing trace with hash -2136658268, now seen corresponding path program 1 times [2024-11-14 05:24:46,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:46,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196667288] [2024-11-14 05:24:46,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:46,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:46,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:46,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196667288] [2024-11-14 05:24:46,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196667288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:46,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707324689] [2024-11-14 05:24:46,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:46,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:46,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:46,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:46,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:24:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:46,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:46,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:46,646 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:46,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707324689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:46,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:46,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-14 05:24:46,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094599495] [2024-11-14 05:24:46,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:46,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:24:46,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:46,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:24:46,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:24:46,648 INFO L87 Difference]: Start difference. First operand 349 states and 368 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:46,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:46,729 INFO L93 Difference]: Finished difference Result 477 states and 501 transitions. [2024-11-14 05:24:46,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:24:46,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2024-11-14 05:24:46,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:46,732 INFO L225 Difference]: With dead ends: 477 [2024-11-14 05:24:46,732 INFO L226 Difference]: Without dead ends: 476 [2024-11-14 05:24:46,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:24:46,734 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 129 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:46,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 872 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:24:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-14 05:24:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 436. [2024-11-14 05:24:46,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 350 states have (on average 1.36) internal successors, (476), 428 states have internal predecessors, (476), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 05:24:46,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 490 transitions. [2024-11-14 05:24:46,765 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 490 transitions. Word has length 68 [2024-11-14 05:24:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:46,765 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 490 transitions. [2024-11-14 05:24:46,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:24:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 490 transitions. [2024-11-14 05:24:46,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 05:24:46,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:46,769 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:46,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:24:46,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:24:46,969 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr96ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:24:46,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:46,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1708167129, now seen corresponding path program 1 times [2024-11-14 05:24:46,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:46,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586956219] [2024-11-14 05:24:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:46,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:47,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:47,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:47,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586956219] [2024-11-14 05:24:47,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586956219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:47,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499311941] [2024-11-14 05:24:47,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:47,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:47,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:47,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:47,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:24:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:47,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:24:47,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:47,439 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:47,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499311941] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:47,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1102924190] [2024-11-14 05:24:47,663 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2024-11-14 05:24:47,664 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:47,668 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:47,673 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:47,674 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:54,336 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 05:24:54,390 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:25:15,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1102924190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:15,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:25:15,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [6, 5, 6] total 32 [2024-11-14 05:25:15,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945045315] [2024-11-14 05:25:15,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:15,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 05:25:15,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:15,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 05:25:15,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=846, Unknown=1, NotChecked=0, Total=992 [2024-11-14 05:25:15,937 INFO L87 Difference]: Start difference. First operand 436 states and 490 transitions. Second operand has 24 states, 22 states have (on average 4.681818181818182) internal successors, (103), 21 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:25:23,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:25:23,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:23,560 INFO L93 Difference]: Finished difference Result 478 states and 501 transitions. [2024-11-14 05:25:23,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 05:25:23,560 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.681818181818182) internal successors, (103), 21 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2024-11-14 05:25:23,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:23,562 INFO L225 Difference]: With dead ends: 478 [2024-11-14 05:25:23,563 INFO L226 Difference]: Without dead ends: 332 [2024-11-14 05:25:23,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 221 SyntacticMatches, 77 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1575 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=322, Invalid=1483, Unknown=1, NotChecked=0, Total=1806 [2024-11-14 05:25:23,565 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 441 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 111 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:23,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 75 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1700 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-11-14 05:25:23,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-14 05:25:23,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 327. [2024-11-14 05:25:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 285 states have (on average 1.1473684210526316) internal successors, (327), 319 states have internal predecessors, (327), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:25:23,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 337 transitions. [2024-11-14 05:25:23,592 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 337 transitions. Word has length 108 [2024-11-14 05:25:23,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:23,592 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 337 transitions. [2024-11-14 05:25:23,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.681818181818182) internal successors, (103), 21 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:25:23,593 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 337 transitions. [2024-11-14 05:25:23,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-14 05:25:23,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:23,595 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:23,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:25:23,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:23,798 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr96ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:25:23,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1111063263, now seen corresponding path program 1 times [2024-11-14 05:25:23,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:23,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336969401] [2024-11-14 05:25:23,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:23,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:23,932 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-14 05:25:23,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:23,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336969401] [2024-11-14 05:25:23,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336969401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:23,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:25:23,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:25:23,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109395261] [2024-11-14 05:25:23,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:23,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:25:23,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:23,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:25:23,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:25:23,936 INFO L87 Difference]: Start difference. First operand 327 states and 337 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:25:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:23,984 INFO L93 Difference]: Finished difference Result 328 states and 337 transitions. [2024-11-14 05:25:23,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:25:23,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 154 [2024-11-14 05:25:23,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:23,987 INFO L225 Difference]: With dead ends: 328 [2024-11-14 05:25:23,987 INFO L226 Difference]: Without dead ends: 327 [2024-11-14 05:25:23,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:25:23,989 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 93 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:23,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 203 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:25:23,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-14 05:25:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 326. [2024-11-14 05:25:24,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 285 states have (on average 1.1403508771929824) internal successors, (325), 318 states have internal predecessors, (325), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:25:24,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 335 transitions. [2024-11-14 05:25:24,008 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 335 transitions. Word has length 154 [2024-11-14 05:25:24,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:24,009 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 335 transitions. [2024-11-14 05:25:24,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:25:24,009 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 335 transitions. [2024-11-14 05:25:24,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-14 05:25:24,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:24,014 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:24,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 05:25:24,014 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr97ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:25:24,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:24,015 INFO L85 PathProgramCache]: Analyzing trace with hash 83223038, now seen corresponding path program 1 times [2024-11-14 05:25:24,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:24,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005378408] [2024-11-14 05:25:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:24,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 05:25:24,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:24,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005378408] [2024-11-14 05:25:24,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005378408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:25:24,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:25:24,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:25:24,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039037686] [2024-11-14 05:25:24,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:25:24,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:25:24,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:25:24,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:25:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:25:24,156 INFO L87 Difference]: Start difference. First operand 326 states and 335 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:25:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:25:24,203 INFO L93 Difference]: Finished difference Result 327 states and 335 transitions. [2024-11-14 05:25:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:25:24,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 155 [2024-11-14 05:25:24,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:25:24,207 INFO L225 Difference]: With dead ends: 327 [2024-11-14 05:25:24,207 INFO L226 Difference]: Without dead ends: 325 [2024-11-14 05:25:24,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:25:24,208 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 93 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:25:24,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 203 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:25:24,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-14 05:25:24,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 324. [2024-11-14 05:25:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 285 states have (on average 1.1263157894736842) internal successors, (321), 316 states have internal predecessors, (321), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:25:24,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 331 transitions. [2024-11-14 05:25:24,228 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 331 transitions. Word has length 155 [2024-11-14 05:25:24,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:25:24,230 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 331 transitions. [2024-11-14 05:25:24,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:25:24,231 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 331 transitions. [2024-11-14 05:25:24,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 05:25:24,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:24,235 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:25:24,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 05:25:24,236 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:25:24,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:24,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1017436250, now seen corresponding path program 1 times [2024-11-14 05:25:24,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:24,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887959124] [2024-11-14 05:25:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:24,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:24,535 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:25:24,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:25:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887959124] [2024-11-14 05:25:24,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887959124] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:25:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34671256] [2024-11-14 05:25:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:24,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:25:24,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:24,538 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:25:24,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:25:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:25:24,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:25:24,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:25:24,915 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:25:24,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:25:25,240 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:25:25,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34671256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:25:25,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [837190690] [2024-11-14 05:25:25,247 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-14 05:25:25,247 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:25:25,247 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:25:25,248 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:25:25,248 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:25:30,176 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 05:25:30,211 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:26:00,801 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10959#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_228| Int)) (and (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) (* (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 3))) (= (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|)) (+ (* 5 (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|)) (* (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 2) (* (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 6))) (<= (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 4611686018427387904))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 05:26:00,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:26:00,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:26:00,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2024-11-14 05:26:00,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203378751] [2024-11-14 05:26:00,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:26:00,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:26:00,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:00,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:26:00,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=979, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:26:00,805 INFO L87 Difference]: Start difference. First operand 324 states and 331 transitions. Second operand has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-14 05:26:01,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:01,310 INFO L93 Difference]: Finished difference Result 810 states and 814 transitions. [2024-11-14 05:26:01,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 05:26:01,311 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 156 [2024-11-14 05:26:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:01,315 INFO L225 Difference]: With dead ends: 810 [2024-11-14 05:26:01,315 INFO L226 Difference]: Without dead ends: 786 [2024-11-14 05:26:01,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 333 SyntacticMatches, 109 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3245 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=297, Invalid=1683, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 05:26:01,317 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 503 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:01,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1158 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:26:01,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-14 05:26:01,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 540. [2024-11-14 05:26:01,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 492 states have (on average 1.0853658536585367) internal successors, (534), 523 states have internal predecessors, (534), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 05:26:01,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 550 transitions. [2024-11-14 05:26:01,359 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 550 transitions. Word has length 156 [2024-11-14 05:26:01,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:01,360 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 550 transitions. [2024-11-14 05:26:01,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-14 05:26:01,361 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 550 transitions. [2024-11-14 05:26:01,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 05:26:01,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:01,363 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-11-14 05:26:01,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:26:01,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:01,565 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:26:01,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:01,565 INFO L85 PathProgramCache]: Analyzing trace with hash -850634753, now seen corresponding path program 1 times [2024-11-14 05:26:01,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:01,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408111197] [2024-11-14 05:26:01,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:01,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:26:01,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37743122] [2024-11-14 05:26:01,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:01,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:01,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:01,627 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:26:01,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:26:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:01,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:26:01,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:26:01,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:02,691 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:26:02,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:26:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408111197] [2024-11-14 05:26:02,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:26:02,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37743122] [2024-11-14 05:26:02,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37743122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:26:02,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1399244426] [2024-11-14 05:26:02,695 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 05:26:02,695 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:26:02,695 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:26:02,695 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:26:02,695 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:26:05,776 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 05:26:05,796 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:26:29,301 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13360#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_237| Int)) (and (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|) (* 3 (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|)))) (<= (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|) 4611686018427387904))) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 05:26:29,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:26:29,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:26:29,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-14 05:26:29,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140207540] [2024-11-14 05:26:29,301 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:26:29,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:26:29,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:29,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:26:29,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2024-11-14 05:26:29,303 INFO L87 Difference]: Start difference. First operand 540 states and 550 transitions. Second operand has 8 states, 7 states have (on average 43.0) internal successors, (301), 8 states have internal predecessors, (301), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:26:33,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:26:35,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:26:37,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 05:26:37,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:37,374 INFO L93 Difference]: Finished difference Result 706 states and 808 transitions. [2024-11-14 05:26:37,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:26:37,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 43.0) internal successors, (301), 8 states have internal predecessors, (301), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 156 [2024-11-14 05:26:37,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:37,379 INFO L225 Difference]: With dead ends: 706 [2024-11-14 05:26:37,380 INFO L226 Difference]: Without dead ends: 669 [2024-11-14 05:26:37,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 336 SyntacticMatches, 105 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1712 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:26:37,381 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 676 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 126 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:37,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 158 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 987 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2024-11-14 05:26:37,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-14 05:26:37,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 487. [2024-11-14 05:26:37,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 468 states have (on average 1.0192307692307692) internal successors, (477), 472 states have internal predecessors, (477), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 05:26:37,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 491 transitions. [2024-11-14 05:26:37,420 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 491 transitions. Word has length 156 [2024-11-14 05:26:37,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:37,421 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 491 transitions. [2024-11-14 05:26:37,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 43.0) internal successors, (301), 8 states have internal predecessors, (301), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:26:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 491 transitions. [2024-11-14 05:26:37,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 05:26:37,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:37,424 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:37,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:26:37,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 05:26:37,625 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr98ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:26:37,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:37,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1715052863, now seen corresponding path program 1 times [2024-11-14 05:26:37,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:37,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283291128] [2024-11-14 05:26:37,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:37,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-14 05:26:37,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:26:37,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283291128] [2024-11-14 05:26:37,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283291128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:37,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:26:37,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:26:37,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294710360] [2024-11-14 05:26:37,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:37,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:26:37,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:37,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:26:37,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:26:37,758 INFO L87 Difference]: Start difference. First operand 487 states and 491 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:26:38,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:26:38,244 INFO L93 Difference]: Finished difference Result 487 states and 491 transitions. [2024-11-14 05:26:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:26:38,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 156 [2024-11-14 05:26:38,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:26:38,248 INFO L225 Difference]: With dead ends: 487 [2024-11-14 05:26:38,248 INFO L226 Difference]: Without dead ends: 486 [2024-11-14 05:26:38,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:26:38,250 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 51 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:26:38,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 32 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:26:38,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-14 05:26:38,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2024-11-14 05:26:38,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 468 states have (on average 1.017094017094017) internal successors, (476), 471 states have internal predecessors, (476), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 05:26:38,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 490 transitions. [2024-11-14 05:26:38,284 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 490 transitions. Word has length 156 [2024-11-14 05:26:38,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:26:38,285 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 490 transitions. [2024-11-14 05:26:38,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:26:38,285 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 490 transitions. [2024-11-14 05:26:38,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-14 05:26:38,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:26:38,287 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:26:38,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 05:26:38,287 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:26:38,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:26:38,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1367853872, now seen corresponding path program 1 times [2024-11-14 05:26:38,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:26:38,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914309326] [2024-11-14 05:26:38,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:38,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:26:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:26:38,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893061381] [2024-11-14 05:26:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:26:38,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:26:38,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:26:38,322 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:26:38,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:26:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:26:38,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:26:38,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:26:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 05:26:38,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:26:39,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:26:39,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914309326] [2024-11-14 05:26:39,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:26:39,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893061381] [2024-11-14 05:26:39,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893061381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:26:39,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1719304396] [2024-11-14 05:26:39,332 INFO L159 IcfgInterpreter]: Started Sifa with 110 locations of interest [2024-11-14 05:26:39,332 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:26:39,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:26:39,333 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:26:39,333 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:26:42,629 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 126 for LOIs [2024-11-14 05:26:42,717 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:26:54,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1719304396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:26:54,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:26:54,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [4] total 22 [2024-11-14 05:26:54,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938000235] [2024-11-14 05:26:54,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:26:54,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 05:26:54,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:26:54,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 05:26:54,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-11-14 05:26:54,418 INFO L87 Difference]: Start difference. First operand 486 states and 490 transitions. Second operand has 20 states, 18 states have (on average 5.944444444444445) internal successors, (107), 17 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:27:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:27:07,112 INFO L93 Difference]: Finished difference Result 486 states and 490 transitions. [2024-11-14 05:27:07,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 05:27:07,112 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.944444444444445) internal successors, (107), 17 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 161 [2024-11-14 05:27:07,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:27:07,114 INFO L225 Difference]: With dead ends: 486 [2024-11-14 05:27:07,114 INFO L226 Difference]: Without dead ends: 437 [2024-11-14 05:27:07,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 327 SyntacticMatches, 82 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1450 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=386, Invalid=1094, Unknown=2, NotChecked=0, Total=1482 [2024-11-14 05:27:07,117 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 404 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:27:07,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 3 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-14 05:27:07,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-14 05:27:07,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2024-11-14 05:27:07,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 423 states have (on average 1.0047281323877069) internal successors, (425), 424 states have internal predecessors, (425), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:27:07,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 437 transitions. [2024-11-14 05:27:07,154 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 437 transitions. Word has length 161 [2024-11-14 05:27:07,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:27:07,155 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 437 transitions. [2024-11-14 05:27:07,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.944444444444445) internal successors, (107), 17 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:27:07,155 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 437 transitions. [2024-11-14 05:27:07,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-14 05:27:07,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:27:07,166 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:27:07,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:27:07,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:07,367 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:27:07,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:27:07,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1120126310, now seen corresponding path program 2 times [2024-11-14 05:27:07,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:27:07,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647378346] [2024-11-14 05:27:07,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:27:07,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:27:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:27:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:27:08,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:27:08,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647378346] [2024-11-14 05:27:08,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647378346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:27:08,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973701954] [2024-11-14 05:27:08,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:27:08,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:27:08,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:27:08,367 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:27:08,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:27:08,701 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 05:27:08,701 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:27:08,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:27:08,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:27:09,300 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 0 proven. 984 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:27:09,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:27:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:27:10,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973701954] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:27:10,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1016466982] [2024-11-14 05:27:10,185 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-14 05:27:10,185 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:27:10,186 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:27:10,186 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:27:10,186 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:27:14,009 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 05:27:14,043 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:28:03,265 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20010#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (exists ((|v_ULTIMATE.start_main_~y~0#1_255| Int)) (and (= (+ (* 5 (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|)) (* (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|) 2) (* 6 (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|))) (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|))) (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|) (* 3 (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|)))) (<= (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|) 4611686018427387904))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 05:28:03,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:28:03,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:28:03,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 16] total 30 [2024-11-14 05:28:03,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413649806] [2024-11-14 05:28:03,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:28:03,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-14 05:28:03,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:28:03,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-14 05:28:03,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=2123, Unknown=0, NotChecked=0, Total=2450 [2024-11-14 05:28:03,269 INFO L87 Difference]: Start difference. First operand 437 states and 437 transitions. Second operand has 30 states, 30 states have (on average 25.733333333333334) internal successors, (772), 30 states have internal predecessors, (772), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-11-14 05:28:04,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:28:04,362 INFO L93 Difference]: Finished difference Result 957 states and 964 transitions. [2024-11-14 05:28:04,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-14 05:28:04,363 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 25.733333333333334) internal successors, (772), 30 states have internal predecessors, (772), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) Word has length 412 [2024-11-14 05:28:04,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:28:04,368 INFO L225 Difference]: With dead ends: 957 [2024-11-14 05:28:04,368 INFO L226 Difference]: Without dead ends: 933 [2024-11-14 05:28:04,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1277 GetRequests, 917 SyntacticMatches, 285 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15777 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=1137, Invalid=4715, Unknown=0, NotChecked=0, Total=5852 [2024-11-14 05:28:04,370 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 163 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:28:04,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1287 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:28:04,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-14 05:28:04,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 926. [2024-11-14 05:28:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 896 states have (on average 1.0100446428571428) internal successors, (905), 897 states have internal predecessors, (905), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:28:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 933 transitions. [2024-11-14 05:28:04,432 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 933 transitions. Word has length 412 [2024-11-14 05:28:04,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:28:04,433 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 933 transitions. [2024-11-14 05:28:04,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 25.733333333333334) internal successors, (772), 30 states have internal predecessors, (772), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-11-14 05:28:04,433 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 933 transitions. [2024-11-14 05:28:04,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-14 05:28:04,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:28:04,443 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1] [2024-11-14 05:28:04,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:28:04,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 05:28:04,644 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:28:04,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:28:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash -747944693, now seen corresponding path program 2 times [2024-11-14 05:28:04,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:28:04,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881043266] [2024-11-14 05:28:04,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:28:04,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:28:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:28:04,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580033128] [2024-11-14 05:28:04,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:28:04,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:28:04,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:28:04,754 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:28:04,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:28:05,162 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 05:28:05,162 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:28:05,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:28:05,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:28:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:28:05,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:28:07,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:28:07,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:28:07,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881043266] [2024-11-14 05:28:07,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:28:07,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580033128] [2024-11-14 05:28:07,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580033128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:28:07,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1524591317] [2024-11-14 05:28:07,609 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 05:28:07,609 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:28:07,611 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:28:07,611 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:28:07,611 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:28:10,364 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 05:28:10,393 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:29:23,438 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24563#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_272| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272|) 4611686018427387904) (<= 4611686018427387905 (+ (* (* |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272|) 3) (* |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272|))))) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 05:29:23,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:29:23,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:29:23,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-14 05:29:23,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081463062] [2024-11-14 05:29:23,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:29:23,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 05:29:23,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:29:23,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 05:29:23,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1014, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 05:29:23,443 INFO L87 Difference]: Start difference. First operand 926 states and 933 transitions. Second operand has 16 states, 15 states have (on average 52.6) internal successors, (789), 16 states have internal predecessors, (789), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:29:27,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:29:27,427 INFO L93 Difference]: Finished difference Result 950 states and 957 transitions. [2024-11-14 05:29:27,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 05:29:27,428 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 52.6) internal successors, (789), 16 states have internal predecessors, (789), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 412 [2024-11-14 05:29:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:29:27,432 INFO L225 Difference]: With dead ends: 950 [2024-11-14 05:29:27,432 INFO L226 Difference]: Without dead ends: 949 [2024-11-14 05:29:27,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 920 SyntacticMatches, 281 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5946 ImplicationChecksByTransitivity, 73.9s TimeCoverageRelationStatistics Valid=272, Invalid=1368, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 05:29:27,434 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 226 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 3055 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 3064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:29:27,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 594 Invalid, 3064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3055 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-14 05:29:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-14 05:29:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2024-11-14 05:29:27,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 919 states have (on average 1.002176278563656) internal successors, (921), 920 states have internal predecessors, (921), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:29:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 949 transitions. [2024-11-14 05:29:27,515 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 949 transitions. Word has length 412 [2024-11-14 05:29:27,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:29:27,516 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 949 transitions. [2024-11-14 05:29:27,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 52.6) internal successors, (789), 16 states have internal predecessors, (789), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:29:27,517 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 949 transitions. [2024-11-14 05:29:27,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2024-11-14 05:29:27,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:29:27,527 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:29:27,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 05:29:27,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:29:27,731 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:29:27,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:29:27,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1982521474, now seen corresponding path program 3 times [2024-11-14 05:29:27,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:29:27,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68301603] [2024-11-14 05:29:27,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:29:27,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:29:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:29:32,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5698 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 05:29:32,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:29:32,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68301603] [2024-11-14 05:29:32,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68301603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:29:32,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855819262] [2024-11-14 05:29:32,207 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:29:32,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:29:32,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:29:32,210 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:29:32,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:29:32,530 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:29:32,530 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:29:32,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 05:29:32,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:29:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:29:33,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:29:36,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5698 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 05:29:36,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855819262] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:29:36,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [229961721] [2024-11-14 05:29:36,250 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-14 05:29:36,250 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:29:36,251 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:29:36,251 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:29:36,251 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:29:39,383 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 05:29:39,404 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:32:04,529 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32207#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= 51 ~counter~0) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256) (exists ((|v_ULTIMATE.start_main_~y~0#1_291| Int)) (and (= (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (+ (* 5 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (* 2 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (* 6 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)))) (<= 4611686018427387905 (+ (* 3 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|))) (<= (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|) 4611686018427387904))))' at error location [2024-11-14 05:32:04,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:32:04,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:32:04,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 32] total 62 [2024-11-14 05:32:04,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481207456] [2024-11-14 05:32:04,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:32:04,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-14 05:32:04,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:04,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-14 05:32:04,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1079, Invalid=5563, Unknown=0, NotChecked=0, Total=6642 [2024-11-14 05:32:04,536 INFO L87 Difference]: Start difference. First operand 949 states and 949 transitions. Second operand has 62 states, 62 states have (on average 28.322580645161292) internal successors, (1756), 62 states have internal predecessors, (1756), 28 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 28 states have call predecessors, (42), 28 states have call successors, (42) [2024-11-14 05:32:07,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:07,994 INFO L93 Difference]: Finished difference Result 1989 states and 2004 transitions. [2024-11-14 05:32:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-14 05:32:07,995 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 28.322580645161292) internal successors, (1756), 62 states have internal predecessors, (1756), 28 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 28 states have call predecessors, (42), 28 states have call successors, (42) Word has length 924 [2024-11-14 05:32:07,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:08,003 INFO L225 Difference]: With dead ends: 1989 [2024-11-14 05:32:08,003 INFO L226 Difference]: Without dead ends: 1965 [2024-11-14 05:32:08,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2861 GetRequests, 2085 SyntacticMatches, 637 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67625 ImplicationChecksByTransitivity, 148.9s TimeCoverageRelationStatistics Valid=4737, Invalid=15003, Unknown=0, NotChecked=0, Total=19740 [2024-11-14 05:32:08,009 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 428 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:08,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2113 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:32:08,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-14 05:32:08,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1950. [2024-11-14 05:32:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1888 states have (on average 1.0090042372881356) internal successors, (1905), 1889 states have internal predecessors, (1905), 30 states have call successors, (30), 30 states have call predecessors, (30), 30 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 05:32:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 1965 transitions. [2024-11-14 05:32:08,155 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 1965 transitions. Word has length 924 [2024-11-14 05:32:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:08,157 INFO L471 AbstractCegarLoop]: Abstraction has 1950 states and 1965 transitions. [2024-11-14 05:32:08,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 28.322580645161292) internal successors, (1756), 62 states have internal predecessors, (1756), 28 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 28 states have call predecessors, (42), 28 states have call successors, (42) [2024-11-14 05:32:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 1965 transitions. [2024-11-14 05:32:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2024-11-14 05:32:08,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:08,167 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1] [2024-11-14 05:32:08,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 05:32:08,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:08,368 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:32:08,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:08,369 INFO L85 PathProgramCache]: Analyzing trace with hash 444374819, now seen corresponding path program 3 times [2024-11-14 05:32:08,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:08,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373709472] [2024-11-14 05:32:08,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:08,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:32:08,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [168323065] [2024-11-14 05:32:08,584 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:32:08,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:08,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:08,586 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:08,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:32:08,931 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:32:08,931 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:32:08,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 05:32:08,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6202 backedges. 0 proven. 6020 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 05:32:10,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6202 backedges. 0 proven. 6020 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 05:32:15,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:15,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373709472] [2024-11-14 05:32:15,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:32:15,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168323065] [2024-11-14 05:32:15,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168323065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:32:15,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1208261845] [2024-11-14 05:32:15,419 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 05:32:15,419 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:15,419 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:15,420 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:15,420 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:32:18,183 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 05:32:18,202 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:35:06,806 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42096#(and (exists ((|v_ULTIMATE.start_main_~y~0#1_324| Int)) (and (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324|) (* (* |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324|) 3))) (<= (* |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324|) 4611686018427387904))) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 05:35:06,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:35:06,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:35:06,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2024-11-14 05:35:06,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456879279] [2024-11-14 05:35:06,806 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:35:06,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-14 05:35:06,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:35:06,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-14 05:35:06,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=2166, Unknown=0, NotChecked=0, Total=2550 [2024-11-14 05:35:06,812 INFO L87 Difference]: Start difference. First operand 1950 states and 1965 transitions. Second operand has 32 states, 31 states have (on average 56.935483870967744) internal successors, (1765), 32 states have internal predecessors, (1765), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-14 05:35:38,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:35:38,577 INFO L93 Difference]: Finished difference Result 1974 states and 1989 transitions. [2024-11-14 05:35:38,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-14 05:35:38,578 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 56.935483870967744) internal successors, (1765), 32 states have internal predecessors, (1765), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 924 [2024-11-14 05:35:38,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:35:38,586 INFO L225 Difference]: With dead ends: 1974 [2024-11-14 05:35:38,587 INFO L226 Difference]: Without dead ends: 1973 [2024-11-14 05:35:38,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2784 GetRequests, 2088 SyntacticMatches, 633 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18711 ImplicationChecksByTransitivity, 190.4s TimeCoverageRelationStatistics Valid=832, Invalid=3328, Unknown=0, NotChecked=0, Total=4160 [2024-11-14 05:35:38,590 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 394 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 12927 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 12943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 12927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:35:38,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 2450 Invalid, 12943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 12927 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-14 05:35:38,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-11-14 05:35:38,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1973. [2024-11-14 05:35:38,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1911 states have (on average 1.0010465724751438) internal successors, (1913), 1912 states have internal predecessors, (1913), 30 states have call successors, (30), 30 states have call predecessors, (30), 30 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 05:35:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 1973 transitions. [2024-11-14 05:35:38,762 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 1973 transitions. Word has length 924 [2024-11-14 05:35:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:35:38,764 INFO L471 AbstractCegarLoop]: Abstraction has 1973 states and 1973 transitions. [2024-11-14 05:35:38,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 56.935483870967744) internal successors, (1765), 32 states have internal predecessors, (1765), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-14 05:35:38,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 1973 transitions. [2024-11-14 05:35:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1949 [2024-11-14 05:35:38,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:35:38,803 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:35:38,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 05:35:39,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-14 05:35:39,004 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 05:35:39,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:35:39,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1128649646, now seen corresponding path program 4 times [2024-11-14 05:35:39,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:35:39,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576158251] [2024-11-14 05:35:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:39,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:35:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:55,527 INFO L134 CoverageAnalysis]: Checked inductivity of 27960 backedges. 0 proven. 27090 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-14 05:35:55,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:35:55,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576158251] [2024-11-14 05:35:55,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576158251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:35:55,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794688455] [2024-11-14 05:35:55,528 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:35:55,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:55,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:35:55,532 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:35:55,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd36e5fa-4dd5-4619-8eb6-4e1405e629aa/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:35:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:56,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 2342 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-14 05:35:56,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:35:59,111 INFO L134 CoverageAnalysis]: Checked inductivity of 27960 backedges. 0 proven. 27960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:35:59,111 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:36:05,537 INFO L134 CoverageAnalysis]: Checked inductivity of 27960 backedges. 0 proven. 27090 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-14 05:36:05,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794688455] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:36:05,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1033277896] [2024-11-14 05:36:05,541 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-14 05:36:05,541 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:36:05,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:36:05,541 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:36:05,542 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:36:09,168 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 05:36:09,200 INFO L180 IcfgInterpreter]: Interpretation finished