./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.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_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/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_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/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_ff6703d3-b6bb-437c-93ed-6f0325618953/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 0ac0f213d1d000e527ab073eb0dd4288784176d966909606abb71d9dc425fd71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:30:10,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:30:10,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:30:10,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:30:10,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:30:10,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:30:10,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:30:10,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:30:10,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:30:10,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:30:10,509 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:30:10,510 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:30:10,511 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:30:10,511 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:30:10,511 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:30:10,511 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:30:10,511 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:30:10,511 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:30:10,511 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:30:10,511 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:30:10,512 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:30:10,512 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:30:10,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:30:10,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:30:10,513 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:30:10,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:30:10,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:30:10,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:30:10,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:30:10,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:30:10,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:30:10,514 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:30:10,514 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:30:10,515 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:30:10,515 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:30:10,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:30:10,515 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:30:10,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:30:10,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:30:10,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:30:10,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:30:10,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:30:10,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:30:10,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:30:10,517 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:30:10,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:30:10,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:30:10,517 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:30:10,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:30:10,518 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_ff6703d3-b6bb-437c-93ed-6f0325618953/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 -> 0ac0f213d1d000e527ab073eb0dd4288784176d966909606abb71d9dc425fd71 [2024-11-14 03:30:10,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:30:10,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:30:10,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:30:10,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:30:10,935 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:30:10,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c Unable to find full path for "g++" [2024-11-14 03:30:12,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:30:13,177 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:30:13,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c [2024-11-14 03:30:13,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/data/488aca602/ebd207e42ccf43988e07e90d5a30673e/FLAG720c5b9e4 [2024-11-14 03:30:13,204 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/data/488aca602/ebd207e42ccf43988e07e90d5a30673e [2024-11-14 03:30:13,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:30:13,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:30:13,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:30:13,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:30:13,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:30:13,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fdd8010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13, skipping insertion in model container [2024-11-14 03:30:13,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,243 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:30:13,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:30:13,516 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:30:13,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:30:13,581 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:30:13,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13 WrapperNode [2024-11-14 03:30:13,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:30:13,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:30:13,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:30:13,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:30:13,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,640 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 152 [2024-11-14 03:30:13,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:30:13,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:30:13,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:30:13,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:30:13,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,680 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:30:13,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:30:13,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:30:13,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:30:13,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (1/1) ... [2024-11-14 03:30:13,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:30:13,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:13,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:30:13,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:30:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:30:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:30:13,779 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:30:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:30:13,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:30:13,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:30:13,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:30:13,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:30:13,855 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:30:13,857 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:30:14,653 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-11-14 03:30:14,653 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:30:14,728 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:30:14,729 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 03:30:14,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:30:14 BoogieIcfgContainer [2024-11-14 03:30:14,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:30:14,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:30:14,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:30:14,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:30:14,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:30:13" (1/3) ... [2024-11-14 03:30:14,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a46240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:30:14, skipping insertion in model container [2024-11-14 03:30:14,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:30:13" (2/3) ... [2024-11-14 03:30:14,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a46240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:30:14, skipping insertion in model container [2024-11-14 03:30:14,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:30:14" (3/3) ... [2024-11-14 03:30:14,742 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound50.c [2024-11-14 03:30:14,761 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:30:14,767 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG fermat1-ll_valuebound50.c that has 3 procedures, 206 locations, 1 initial locations, 3 loop locations, and 92 error locations. [2024-11-14 03:30:14,853 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:30:14,873 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;@736f419a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:30:14,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2024-11-14 03:30:14,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 103 states have (on average 1.9514563106796117) internal successors, (201), 195 states have internal predecessors, (201), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 03:30:14,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 03:30:14,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:14,890 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:30:14,891 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:14,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:14,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1351694628, now seen corresponding path program 1 times [2024-11-14 03:30:14,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:14,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258442862] [2024-11-14 03:30:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:14,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:15,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:30:15,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:15,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258442862] [2024-11-14 03:30:15,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258442862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:15,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:15,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:15,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020197917] [2024-11-14 03:30:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:15,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:15,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:15,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:15,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:15,186 INFO L87 Difference]: Start difference. First operand has 206 states, 103 states have (on average 1.9514563106796117) internal successors, (201), 195 states have internal predecessors, (201), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 03:30:15,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:15,320 INFO L93 Difference]: Finished difference Result 368 states and 395 transitions. [2024-11-14 03:30:15,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:15,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 9 [2024-11-14 03:30:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:15,336 INFO L225 Difference]: With dead ends: 368 [2024-11-14 03:30:15,336 INFO L226 Difference]: Without dead ends: 189 [2024-11-14 03:30:15,343 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 03:30:15,348 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 13 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:15,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 344 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:30:15,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-14 03:30:15,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-11-14 03:30:15,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 102 states have (on average 1.7843137254901962) internal successors, (182), 179 states have internal predecessors, (182), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:30:15,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 196 transitions. [2024-11-14 03:30:15,422 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 196 transitions. Word has length 9 [2024-11-14 03:30:15,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:15,425 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 196 transitions. [2024-11-14 03:30:15,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 03:30:15,425 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 196 transitions. [2024-11-14 03:30:15,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 03:30:15,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:15,427 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:30:15,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:30:15,427 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:15,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:15,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1047139453, now seen corresponding path program 1 times [2024-11-14 03:30:15,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:15,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080069168] [2024-11-14 03:30:15,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:15,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:15,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:30:15,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:15,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080069168] [2024-11-14 03:30:15,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080069168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:15,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:15,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:15,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010649458] [2024-11-14 03:30:15,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:15,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:15,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:15,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:15,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:15,522 INFO L87 Difference]: Start difference. First operand 189 states and 196 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 03:30:15,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:15,632 INFO L93 Difference]: Finished difference Result 189 states and 196 transitions. [2024-11-14 03:30:15,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:15,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 10 [2024-11-14 03:30:15,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:15,634 INFO L225 Difference]: With dead ends: 189 [2024-11-14 03:30:15,637 INFO L226 Difference]: Without dead ends: 185 [2024-11-14 03:30:15,637 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 03:30:15,638 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 12 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:15,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 338 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:30:15,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-14 03:30:15,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-14 03:30:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 102 states have (on average 1.7450980392156863) internal successors, (178), 175 states have internal predecessors, (178), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:30:15,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 192 transitions. [2024-11-14 03:30:15,665 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 192 transitions. Word has length 10 [2024-11-14 03:30:15,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:15,665 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 192 transitions. [2024-11-14 03:30:15,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 03:30:15,665 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 192 transitions. [2024-11-14 03:30:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 03:30:15,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:15,666 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:30:15,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:30:15,667 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:15,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:15,669 INFO L85 PathProgramCache]: Analyzing trace with hash -437142457, now seen corresponding path program 1 times [2024-11-14 03:30:15,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:15,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107448392] [2024-11-14 03:30:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:15,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:30:15,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047156515] [2024-11-14 03:30:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:15,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:15,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:15,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:15,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:30:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:15,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:30:15,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:30:15,896 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:30:15,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:15,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107448392] [2024-11-14 03:30:15,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:30:15,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047156515] [2024-11-14 03:30:15,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047156515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:15,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:15,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:30:15,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055092105] [2024-11-14 03:30:15,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:15,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:30:15,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:15,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:30:15,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:30:15,900 INFO L87 Difference]: Start difference. First operand 185 states and 192 transitions. Second operand has 4 states, 2 states have (on average 5.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:30:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:16,028 INFO L93 Difference]: Finished difference Result 185 states and 192 transitions. [2024-11-14 03:30:16,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:30:16,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 2 states have (on average 5.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-14 03:30:16,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:16,033 INFO L225 Difference]: With dead ends: 185 [2024-11-14 03:30:16,033 INFO L226 Difference]: Without dead ends: 183 [2024-11-14 03:30:16,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 03:30:16,034 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 8 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:16,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 496 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:30:16,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-14 03:30:16,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-14 03:30:16,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 102 states have (on average 1.7254901960784315) internal successors, (176), 173 states have internal predecessors, (176), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:30:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 190 transitions. [2024-11-14 03:30:16,057 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 190 transitions. Word has length 14 [2024-11-14 03:30:16,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:16,057 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 190 transitions. [2024-11-14 03:30:16,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 2 states have (on average 5.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:30:16,058 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 190 transitions. [2024-11-14 03:30:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 03:30:16,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:16,059 INFO L215 NwaCegarLoop]: trace histogram [4, 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 03:30:16,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:30:16,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-14 03:30:16,260 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:16,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:16,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1522739954, now seen corresponding path program 1 times [2024-11-14 03:30:16,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:16,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931520634] [2024-11-14 03:30:16,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:16,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:30:16,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938408042] [2024-11-14 03:30:16,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:16,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:16,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:16,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:16,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:30:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:16,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:30:16,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:16,460 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:30:16,462 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:30:16,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:16,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931520634] [2024-11-14 03:30:16,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:30:16,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938408042] [2024-11-14 03:30:16,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938408042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:16,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:16,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:16,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711960275] [2024-11-14 03:30:16,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:16,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:16,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:16,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:16,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:16,464 INFO L87 Difference]: Start difference. First operand 183 states and 190 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:30:16,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:16,552 INFO L93 Difference]: Finished difference Result 183 states and 190 transitions. [2024-11-14 03:30:16,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:16,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-14 03:30:16,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:16,556 INFO L225 Difference]: With dead ends: 183 [2024-11-14 03:30:16,556 INFO L226 Difference]: Without dead ends: 181 [2024-11-14 03:30:16,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 03:30:16,558 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 144 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:16,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 162 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:30:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-14 03:30:16,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-14 03:30:16,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 102 states have (on average 1.7058823529411764) internal successors, (174), 171 states have internal predecessors, (174), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:30:16,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 188 transitions. [2024-11-14 03:30:16,581 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 188 transitions. Word has length 27 [2024-11-14 03:30:16,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:16,582 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 188 transitions. [2024-11-14 03:30:16,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:30:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 188 transitions. [2024-11-14 03:30:16,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:30:16,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:16,584 INFO L215 NwaCegarLoop]: trace histogram [4, 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 03:30:16,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:30:16,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:16,788 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:16,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:16,788 INFO L85 PathProgramCache]: Analyzing trace with hash 39701747, now seen corresponding path program 1 times [2024-11-14 03:30:16,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:16,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137636576] [2024-11-14 03:30:16,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:16,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:17,086 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:30:17,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:17,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137636576] [2024-11-14 03:30:17,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137636576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:17,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456387521] [2024-11-14 03:30:17,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:17,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:17,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:17,091 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:17,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:30:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:17,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:30:17,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:17,306 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:30:17,306 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:30:17,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:30:17,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456387521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:30:17,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1527530002] [2024-11-14 03:30:17,561 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:30:17,561 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:30:17,564 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:30:17,570 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:30:17,571 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:30:18,608 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:30:18,611 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:30:19,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1527530002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:19,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:30:19,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 17 [2024-11-14 03:30:19,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110498051] [2024-11-14 03:30:19,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:19,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:30:19,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:19,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:30:19,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:30:19,672 INFO L87 Difference]: Start difference. First operand 181 states and 188 transitions. Second operand has 11 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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 03:30:20,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:20,044 INFO L93 Difference]: Finished difference Result 181 states and 188 transitions. [2024-11-14 03:30:20,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:30:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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 28 [2024-11-14 03:30:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:20,047 INFO L225 Difference]: With dead ends: 181 [2024-11-14 03:30:20,047 INFO L226 Difference]: Without dead ends: 179 [2024-11-14 03:30:20,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 64 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:30:20,048 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 156 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:20,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 521 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:30:20,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-14 03:30:20,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-14 03:30:20,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 102 states have (on average 1.6862745098039216) internal successors, (172), 169 states have internal predecessors, (172), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:30:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 186 transitions. [2024-11-14 03:30:20,063 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 186 transitions. Word has length 28 [2024-11-14 03:30:20,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:20,063 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 186 transitions. [2024-11-14 03:30:20,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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 03:30:20,063 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 186 transitions. [2024-11-14 03:30:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 03:30:20,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:20,064 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 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 03:30:20,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:30:20,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:20,265 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:20,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:20,266 INFO L85 PathProgramCache]: Analyzing trace with hash -501324459, now seen corresponding path program 1 times [2024-11-14 03:30:20,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:20,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152760070] [2024-11-14 03:30:20,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:20,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:30:20,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:20,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152760070] [2024-11-14 03:30:20,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152760070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:20,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:20,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:20,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194257148] [2024-11-14 03:30:20,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:20,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:20,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:20,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:20,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:20,386 INFO L87 Difference]: Start difference. First operand 179 states and 186 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:30:20,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:20,488 INFO L93 Difference]: Finished difference Result 185 states and 192 transitions. [2024-11-14 03:30:20,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:20,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-11-14 03:30:20,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:20,489 INFO L225 Difference]: With dead ends: 185 [2024-11-14 03:30:20,489 INFO L226 Difference]: Without dead ends: 182 [2024-11-14 03:30:20,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:20,490 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 99 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:20,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 206 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:30:20,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-14 03:30:20,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-14 03:30:20,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 106 states have (on average 1.650943396226415) internal successors, (175), 172 states have internal predecessors, (175), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:30:20,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 189 transitions. [2024-11-14 03:30:20,513 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 189 transitions. Word has length 30 [2024-11-14 03:30:20,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:20,514 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 189 transitions. [2024-11-14 03:30:20,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:30:20,514 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 189 transitions. [2024-11-14 03:30:20,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 03:30:20,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:20,515 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 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 03:30:20,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:30:20,515 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:20,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:20,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1638811032, now seen corresponding path program 1 times [2024-11-14 03:30:20,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:20,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674623811] [2024-11-14 03:30:20,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:20,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:20,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:30:20,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:20,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674623811] [2024-11-14 03:30:20,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674623811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:20,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:20,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:30:20,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210355979] [2024-11-14 03:30:20,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:20,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:30:20,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:20,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:30:20,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:30:20,621 INFO L87 Difference]: Start difference. First operand 182 states and 189 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:30:20,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:20,792 INFO L93 Difference]: Finished difference Result 186 states and 193 transitions. [2024-11-14 03:30:20,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:30:20,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2024-11-14 03:30:20,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:20,794 INFO L225 Difference]: With dead ends: 186 [2024-11-14 03:30:20,794 INFO L226 Difference]: Without dead ends: 183 [2024-11-14 03:30:20,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:30:20,795 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 109 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:20,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 313 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:30:20,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-14 03:30:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-14 03:30:20,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 108 states have (on average 1.6296296296296295) internal successors, (176), 173 states have internal predecessors, (176), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:30:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 190 transitions. [2024-11-14 03:30:20,808 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 190 transitions. Word has length 31 [2024-11-14 03:30:20,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:20,808 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 190 transitions. [2024-11-14 03:30:20,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:30:20,808 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 190 transitions. [2024-11-14 03:30:20,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 03:30:20,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:20,809 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 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 03:30:20,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:30:20,809 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:20,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:20,810 INFO L85 PathProgramCache]: Analyzing trace with hash -736465481, now seen corresponding path program 1 times [2024-11-14 03:30:20,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:20,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132459170] [2024-11-14 03:30:20,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:20,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:30:20,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178702431] [2024-11-14 03:30:20,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:20,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:20,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:20,842 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:20,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:30:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:20,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:30:20,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:30:20,933 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:30:20,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:20,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132459170] [2024-11-14 03:30:20,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:30:20,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178702431] [2024-11-14 03:30:20,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178702431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:20,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:20,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:20,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518339554] [2024-11-14 03:30:20,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:20,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:20,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:20,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:20,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:20,938 INFO L87 Difference]: Start difference. First operand 183 states and 190 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:30:21,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:21,113 INFO L93 Difference]: Finished difference Result 289 states and 309 transitions. [2024-11-14 03:30:21,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:21,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-11-14 03:30:21,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:21,116 INFO L225 Difference]: With dead ends: 289 [2024-11-14 03:30:21,116 INFO L226 Difference]: Without dead ends: 286 [2024-11-14 03:30:21,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 03:30:21,117 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 97 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:21,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 293 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:30:21,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-14 03:30:21,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 246. [2024-11-14 03:30:21,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 168 states have (on average 1.6547619047619047) internal successors, (278), 233 states have internal predecessors, (278), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:30:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 298 transitions. [2024-11-14 03:30:21,140 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 298 transitions. Word has length 32 [2024-11-14 03:30:21,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:21,140 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 298 transitions. [2024-11-14 03:30:21,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-14 03:30:21,141 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 298 transitions. [2024-11-14 03:30:21,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-14 03:30:21,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:21,142 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 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 03:30:21,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:30:21,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:21,343 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:21,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:21,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1355593350, now seen corresponding path program 1 times [2024-11-14 03:30:21,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:21,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758107426] [2024-11-14 03:30:21,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:21,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:21,598 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 03:30:21,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:21,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758107426] [2024-11-14 03:30:21,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758107426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:21,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651588549] [2024-11-14 03:30:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:21,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:21,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:21,602 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:21,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:30:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:21,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:30:21,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:30:21,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:30:22,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651588549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:22,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1074246992] [2024-11-14 03:30:22,270 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2024-11-14 03:30:22,270 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:30:22,270 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:30:22,270 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:30:22,271 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:30:22,841 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:30:22,843 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:30:24,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1074246992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:24,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:30:24,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 6] total 20 [2024-11-14 03:30:24,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221333170] [2024-11-14 03:30:24,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:24,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:30:24,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:24,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:30:24,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=439, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:30:24,504 INFO L87 Difference]: Start difference. First operand 246 states and 298 transitions. Second operand has 12 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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 03:30:26,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:26,047 INFO L93 Difference]: Finished difference Result 293 states and 306 transitions. [2024-11-14 03:30:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:30:26,048 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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 33 [2024-11-14 03:30:26,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:26,049 INFO L225 Difference]: With dead ends: 293 [2024-11-14 03:30:26,049 INFO L226 Difference]: Without dead ends: 250 [2024-11-14 03:30:26,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 9 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=161, Invalid=439, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:30:26,051 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 276 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:26,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 317 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:30:26,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-14 03:30:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-11-14 03:30:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 172 states have (on average 1.4127906976744187) internal successors, (243), 237 states have internal predecessors, (243), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:30:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 263 transitions. [2024-11-14 03:30:26,070 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 263 transitions. Word has length 33 [2024-11-14 03:30:26,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:26,071 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 263 transitions. [2024-11-14 03:30:26,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 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 03:30:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 263 transitions. [2024-11-14 03:30:26,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 03:30:26,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:26,074 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:26,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:30:26,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 03:30:26,275 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:26,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash -710230115, now seen corresponding path program 1 times [2024-11-14 03:30:26,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:26,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112225407] [2024-11-14 03:30:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:26,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:30:26,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:26,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112225407] [2024-11-14 03:30:26,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112225407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:26,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:26,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332442752] [2024-11-14 03:30:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:26,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:26,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:26,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:26,333 INFO L87 Difference]: Start difference. First operand 250 states and 263 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:26,561 INFO L93 Difference]: Finished difference Result 264 states and 277 transitions. [2024-11-14 03:30:26,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:26,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-14 03:30:26,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:26,563 INFO L225 Difference]: With dead ends: 264 [2024-11-14 03:30:26,564 INFO L226 Difference]: Without dead ends: 246 [2024-11-14 03:30:26,564 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 03:30:26,564 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 92 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:26,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 145 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:30:26,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-14 03:30:26,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 237. [2024-11-14 03:30:26,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 176 states have (on average 1.3181818181818181) internal successors, (232), 224 states have internal predecessors, (232), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:30:26,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 252 transitions. [2024-11-14 03:30:26,583 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 252 transitions. Word has length 55 [2024-11-14 03:30:26,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:26,584 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 252 transitions. [2024-11-14 03:30:26,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:26,584 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 252 transitions. [2024-11-14 03:30:26,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 03:30:26,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:26,585 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:26,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:30:26,585 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:26,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:26,585 INFO L85 PathProgramCache]: Analyzing trace with hash 368667519, now seen corresponding path program 1 times [2024-11-14 03:30:26,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:26,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981722102] [2024-11-14 03:30:26,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:26,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:26,631 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:30:26,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:26,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981722102] [2024-11-14 03:30:26,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981722102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:26,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:26,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:26,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123430786] [2024-11-14 03:30:26,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:26,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:26,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:26,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:26,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:26,633 INFO L87 Difference]: Start difference. First operand 237 states and 252 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:26,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:26,814 INFO L93 Difference]: Finished difference Result 246 states and 261 transitions. [2024-11-14 03:30:26,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:26,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-11-14 03:30:26,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:26,816 INFO L225 Difference]: With dead ends: 246 [2024-11-14 03:30:26,816 INFO L226 Difference]: Without dead ends: 224 [2024-11-14 03:30:26,817 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 03:30:26,817 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 83 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:26,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 120 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:30:26,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-14 03:30:26,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2024-11-14 03:30:26,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 182 states have (on average 1.2032967032967032) internal successors, (219), 209 states have internal predecessors, (219), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:30:26,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2024-11-14 03:30:26,848 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 57 [2024-11-14 03:30:26,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:26,848 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2024-11-14 03:30:26,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2024-11-14 03:30:26,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 03:30:26,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:26,849 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:26,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:30:26,849 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr87ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:26,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:26,850 INFO L85 PathProgramCache]: Analyzing trace with hash 779144997, now seen corresponding path program 1 times [2024-11-14 03:30:26,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:26,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691381046] [2024-11-14 03:30:26,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:26,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:30:26,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:26,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691381046] [2024-11-14 03:30:26,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691381046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:26,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:26,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:26,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742958241] [2024-11-14 03:30:26,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:26,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:26,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:26,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:26,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:26,941 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:27,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:27,224 INFO L93 Difference]: Finished difference Result 257 states and 270 transitions. [2024-11-14 03:30:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:27,225 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2024-11-14 03:30:27,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:27,226 INFO L225 Difference]: With dead ends: 257 [2024-11-14 03:30:27,227 INFO L226 Difference]: Without dead ends: 253 [2024-11-14 03:30:27,227 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 03:30:27,228 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 73 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:27,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 131 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:30:27,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-14 03:30:27,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 234. [2024-11-14 03:30:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 196 states have (on average 1.1785714285714286) internal successors, (231), 221 states have internal predecessors, (231), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:30:27,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 251 transitions. [2024-11-14 03:30:27,250 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 251 transitions. Word has length 63 [2024-11-14 03:30:27,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:27,251 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 251 transitions. [2024-11-14 03:30:27,251 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:27,251 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 251 transitions. [2024-11-14 03:30:27,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 03:30:27,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:27,252 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:27,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 03:30:27,252 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr90ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:27,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:27,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1505601254, now seen corresponding path program 1 times [2024-11-14 03:30:27,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:27,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822739866] [2024-11-14 03:30:27,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:27,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:30:27,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:27,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822739866] [2024-11-14 03:30:27,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822739866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:27,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:27,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:27,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767422909] [2024-11-14 03:30:27,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:27,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:27,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:27,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:27,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:27,347 INFO L87 Difference]: Start difference. First operand 234 states and 251 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:27,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:27,611 INFO L93 Difference]: Finished difference Result 246 states and 259 transitions. [2024-11-14 03:30:27,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:27,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2024-11-14 03:30:27,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:27,613 INFO L225 Difference]: With dead ends: 246 [2024-11-14 03:30:27,613 INFO L226 Difference]: Without dead ends: 242 [2024-11-14 03:30:27,614 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 03:30:27,614 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 77 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:27,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 109 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:30:27,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-14 03:30:27,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 238. [2024-11-14 03:30:27,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 202 states have (on average 1.1633663366336633) internal successors, (235), 225 states have internal predecessors, (235), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:30:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 255 transitions. [2024-11-14 03:30:27,644 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 255 transitions. Word has length 66 [2024-11-14 03:30:27,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:27,644 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 255 transitions. [2024-11-14 03:30:27,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:27,645 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 255 transitions. [2024-11-14 03:30:27,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 03:30:27,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:27,645 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:27,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 03:30:27,646 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr91ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:27,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:27,646 INFO L85 PathProgramCache]: Analyzing trace with hash -571001111, now seen corresponding path program 1 times [2024-11-14 03:30:27,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:27,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941199531] [2024-11-14 03:30:27,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:27,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:27,743 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 03:30:27,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:27,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941199531] [2024-11-14 03:30:27,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941199531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:27,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:27,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:30:27,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140511750] [2024-11-14 03:30:27,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:27,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:30:27,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:27,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:30:27,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:30:27,745 INFO L87 Difference]: Start difference. First operand 238 states and 255 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:28,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:28,042 INFO L93 Difference]: Finished difference Result 265 states and 278 transitions. [2024-11-14 03:30:28,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:28,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2024-11-14 03:30:28,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:28,044 INFO L225 Difference]: With dead ends: 265 [2024-11-14 03:30:28,044 INFO L226 Difference]: Without dead ends: 245 [2024-11-14 03:30:28,044 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 03:30:28,045 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 73 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:28,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 139 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:30:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-14 03:30:28,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 222. [2024-11-14 03:30:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 188 states have (on average 1.1595744680851063) internal successors, (218), 209 states have internal predecessors, (218), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:30:28,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 238 transitions. [2024-11-14 03:30:28,066 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 238 transitions. Word has length 67 [2024-11-14 03:30:28,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:28,066 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 238 transitions. [2024-11-14 03:30:28,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:30:28,067 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 238 transitions. [2024-11-14 03:30:28,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:30:28,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:28,068 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 03:30:28,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 03:30:28,068 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:28,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:28,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1110555143, now seen corresponding path program 1 times [2024-11-14 03:30:28,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:28,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418762966] [2024-11-14 03:30:28,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:28,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:28,278 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:30:28,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:28,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418762966] [2024-11-14 03:30:28,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418762966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:28,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113437176] [2024-11-14 03:30:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:28,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:28,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:28,280 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:28,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:30:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:28,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:30:28,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:30:28,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:30:28,883 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:30:28,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113437176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:30:28,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1241021528] [2024-11-14 03:30:28,887 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-14 03:30:28,887 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:30:28,887 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:30:28,889 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:30:28,889 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:30:35,143 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 194 for LOIs [2024-11-14 03:30:35,346 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:30:35,347 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:30:46,546 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8131#(and (<= 3 |ULTIMATE.start_main_~v~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~u~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~u~0#1| 4611686018427387903))' at error location [2024-11-14 03:30:46,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:30:46,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:30:46,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-14 03:30:46,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696689187] [2024-11-14 03:30:46,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:30:46,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:30:46,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:46,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:30:46,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1203, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 03:30:46,549 INFO L87 Difference]: Start difference. First operand 222 states and 238 transitions. Second operand has 14 states, 13 states have (on average 13.615384615384615) internal successors, (177), 14 states have internal predecessors, (177), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-14 03:30:47,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:47,434 INFO L93 Difference]: Finished difference Result 591 states and 655 transitions. [2024-11-14 03:30:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 03:30:47,435 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.615384615384615) internal successors, (177), 14 states have internal predecessors, (177), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 80 [2024-11-14 03:30:47,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:47,438 INFO L225 Difference]: With dead ends: 591 [2024-11-14 03:30:47,438 INFO L226 Difference]: Without dead ends: 391 [2024-11-14 03:30:47,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 172 SyntacticMatches, 35 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1585 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=473, Invalid=1977, Unknown=0, NotChecked=0, Total=2450 [2024-11-14 03:30:47,440 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 686 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:47,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 354 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:30:47,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-14 03:30:47,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 375. [2024-11-14 03:30:47,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 336 states have (on average 1.1428571428571428) internal successors, (384), 355 states have internal predecessors, (384), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 03:30:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 418 transitions. [2024-11-14 03:30:47,479 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 418 transitions. Word has length 80 [2024-11-14 03:30:47,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:47,479 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 418 transitions. [2024-11-14 03:30:47,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.615384615384615) internal successors, (177), 14 states have internal predecessors, (177), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-14 03:30:47,479 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 418 transitions. [2024-11-14 03:30:47,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:30:47,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:47,481 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 03:30:47,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:30:47,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 03:30:47,682 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:30:47,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:47,682 INFO L85 PathProgramCache]: Analyzing trace with hash -67470938, now seen corresponding path program 1 times [2024-11-14 03:30:47,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:47,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341986301] [2024-11-14 03:30:47,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:47,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:30:47,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:47,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341986301] [2024-11-14 03:30:47,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341986301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:47,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984585458] [2024-11-14 03:30:47,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:47,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:47,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:47,845 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:47,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:30:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:47,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:30:47,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:58,227 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~R~0#1_55| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~R~0#1_55| |v_ULTIMATE.start_main_~R~0#1_55|))) (and (<= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse0) (<= .cse0 9223372036854775807)))) is different from true [2024-11-14 03:30:58,251 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 3 not checked. [2024-11-14 03:30:58,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:30:58,403 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:30:58,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984585458] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:30:58,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1030990547] [2024-11-14 03:30:58,406 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-14 03:30:58,408 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:30:58,409 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:30:58,409 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:30:58,409 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:31:01,840 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 194 for LOIs [2024-11-14 03:31:01,952 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:31:01,953 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:31:50,076 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9727#(and (<= 3 |ULTIMATE.start_main_~v~0#1|) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~u~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~u~0#1| 4611686018427387903))' at error location [2024-11-14 03:31:50,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:31:50,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:31:50,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-14 03:31:50,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473747119] [2024-11-14 03:31:50,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:31:50,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:31:50,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:50,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:31:50,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1147, Unknown=8, NotChecked=72, Total=1482 [2024-11-14 03:31:50,079 INFO L87 Difference]: Start difference. First operand 375 states and 418 transitions. Second operand has 14 states, 13 states have (on average 13.0) internal successors, (169), 14 states have internal predecessors, (169), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 03:31:52,116 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 [0] [2024-11-14 03:31:54,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:56,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:00,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:04,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:06,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:08,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:10,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:12,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:14,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:16,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:22,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:24,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:26,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:28,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:30,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:32,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:34,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:37,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:39,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:41,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:43,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:47,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:49,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:51,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:33:21,261 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 [0] [2024-11-14 03:33:21,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:21,285 INFO L93 Difference]: Finished difference Result 500 states and 553 transitions. [2024-11-14 03:33:21,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 03:33:21,286 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.0) internal successors, (169), 14 states have internal predecessors, (169), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 81 [2024-11-14 03:33:21,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:21,288 INFO L225 Difference]: With dead ends: 500 [2024-11-14 03:33:21,288 INFO L226 Difference]: Without dead ends: 496 [2024-11-14 03:33:21,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 174 SyntacticMatches, 35 SemanticMatches, 46 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 96.4s TimeCoverageRelationStatistics Valid=365, Invalid=1775, Unknown=26, NotChecked=90, Total=2256 [2024-11-14 03:33:21,290 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 234 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 25 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 301 IncrementalHoareTripleChecker+Unchecked, 52.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:21,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 350 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 657 Invalid, 26 Unknown, 301 Unchecked, 52.8s Time] [2024-11-14 03:33:21,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-14 03:33:21,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2024-11-14 03:33:21,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 440 states have (on average 1.1227272727272728) internal successors, (494), 458 states have internal predecessors, (494), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:33:21,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 538 transitions. [2024-11-14 03:33:21,340 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 538 transitions. Word has length 81 [2024-11-14 03:33:21,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:21,340 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 538 transitions. [2024-11-14 03:33:21,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.0) internal successors, (169), 14 states have internal predecessors, (169), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 03:33:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 538 transitions. [2024-11-14 03:33:21,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:33:21,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:21,342 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1] [2024-11-14 03:33:21,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:33:21,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 03:33:21,546 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:33:21,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:21,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1688480372, now seen corresponding path program 1 times [2024-11-14 03:33:21,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:21,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182909623] [2024-11-14 03:33:21,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:21,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:33:21,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075236067] [2024-11-14 03:33:21,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:21,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:21,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:21,568 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:21,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:33:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:21,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:33:21,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:21,747 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:33:21,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:33:21,926 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:33:21,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:21,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182909623] [2024-11-14 03:33:21,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:33:21,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075236067] [2024-11-14 03:33:21,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075236067] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:33:21,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [814582554] [2024-11-14 03:33:21,929 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-14 03:33:21,929 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:33:21,929 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:33:21,930 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:33:21,930 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:33:25,304 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 194 for LOIs [2024-11-14 03:33:25,464 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:33:25,465 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:33:37,265 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11367#(exists ((|v_ULTIMATE.start_main_~v~0#1_129| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~v~0#1_129| 9223372036854775807) (<= (* |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~u~0#1|) 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~v~0#1_129| |v_ULTIMATE.start_main_~v~0#1_129|)) (<= (+ |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) 2305843009213693951) (<= 0 (+ 2305843009213693952 |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~A~0#1| 50) (<= 0 |ULTIMATE.start_main_~A~0#1|) (<= 1 |v_ULTIMATE.start_main_~v~0#1_129|)))' at error location [2024-11-14 03:33:37,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:33:37,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:33:37,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-14 03:33:37,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419773453] [2024-11-14 03:33:37,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:33:37,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:33:37,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:37,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:33:37,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:33:37,267 INFO L87 Difference]: Start difference. First operand 483 states and 538 transitions. Second operand has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-14 03:33:37,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:37,651 INFO L93 Difference]: Finished difference Result 790 states and 872 transitions. [2024-11-14 03:33:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:33:37,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-11-14 03:33:37,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:37,656 INFO L225 Difference]: With dead ends: 790 [2024-11-14 03:33:37,656 INFO L226 Difference]: Without dead ends: 788 [2024-11-14 03:33:37,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 193 SyntacticMatches, 37 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:33:37,657 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 389 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:37,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 312 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:33:37,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-11-14 03:33:37,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 769. [2024-11-14 03:33:37,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 714 states have (on average 1.119047619047619) internal successors, (799), 732 states have internal predecessors, (799), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-14 03:33:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 867 transitions. [2024-11-14 03:33:37,750 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 867 transitions. Word has length 87 [2024-11-14 03:33:37,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:37,750 INFO L471 AbstractCegarLoop]: Abstraction has 769 states and 867 transitions. [2024-11-14 03:33:37,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.8) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-14 03:33:37,751 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 867 transitions. [2024-11-14 03:33:37,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 03:33:37,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:37,752 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 03:33:37,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:33:37,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 03:33:37,956 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:33:37,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:37,957 INFO L85 PathProgramCache]: Analyzing trace with hash -519106190, now seen corresponding path program 1 times [2024-11-14 03:33:37,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:37,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004762950] [2024-11-14 03:33:37,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:37,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 03:33:38,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:38,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004762950] [2024-11-14 03:33:38,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004762950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:38,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361275705] [2024-11-14 03:33:38,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:38,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:38,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:38,211 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:38,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:33:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:38,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:33:38,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 03:33:38,749 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:33:41,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361275705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:41,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [615504047] [2024-11-14 03:33:41,199 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-14 03:33:41,199 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:33:41,199 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:33:41,200 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:33:41,200 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:33:44,718 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 198 for LOIs [2024-11-14 03:33:44,834 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:33:44,835 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:34:02,245 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13451#(exists ((|v_ULTIMATE.start_main_~v~0#1_135| Int) (|v_ULTIMATE.start_main_~u~0#1_113| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|) 2305843009213693951) (<= 0 (+ 2305843009213693952 |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~A~0#1| 50) (<= (* |v_ULTIMATE.start_main_~u~0#1_113| |v_ULTIMATE.start_main_~u~0#1_113|) 9223372036854775807) (<= 0 |ULTIMATE.start_main_~A~0#1|) (<= (+ (* 2 |v_ULTIMATE.start_main_~u~0#1_113|) 9223372036854775808 (* |v_ULTIMATE.start_main_~v~0#1_135| |v_ULTIMATE.start_main_~v~0#1_135|)) (* |v_ULTIMATE.start_main_~u~0#1_113| |v_ULTIMATE.start_main_~u~0#1_113|)) (<= 1 |v_ULTIMATE.start_main_~v~0#1_135|)))' at error location [2024-11-14 03:34:02,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:34:02,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:34:02,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2024-11-14 03:34:02,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025190117] [2024-11-14 03:34:02,246 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:34:02,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:34:02,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:02,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:34:02,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1333, Unknown=2, NotChecked=0, Total=1560 [2024-11-14 03:34:02,247 INFO L87 Difference]: Start difference. First operand 769 states and 867 transitions. Second operand has 12 states, 10 states have (on average 14.1) internal successors, (141), 12 states have internal predecessors, (141), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 03:34:06,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:34:06,838 INFO L93 Difference]: Finished difference Result 1433 states and 1631 transitions. [2024-11-14 03:34:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:34:06,839 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 14.1) internal successors, (141), 12 states have internal predecessors, (141), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 93 [2024-11-14 03:34:06,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:34:06,846 INFO L225 Difference]: With dead ends: 1433 [2024-11-14 03:34:06,847 INFO L226 Difference]: Without dead ends: 1429 [2024-11-14 03:34:06,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 132 SyntacticMatches, 42 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=302, Invalid=1858, Unknown=2, NotChecked=0, Total=2162 [2024-11-14 03:34:06,849 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 365 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:34:06,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 257 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-14 03:34:06,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2024-11-14 03:34:07,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1295. [2024-11-14 03:34:07,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1220 states have (on average 1.1131147540983606) internal successors, (1358), 1236 states have internal predecessors, (1358), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-14 03:34:07,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1470 transitions. [2024-11-14 03:34:07,030 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1470 transitions. Word has length 93 [2024-11-14 03:34:07,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:34:07,031 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1470 transitions. [2024-11-14 03:34:07,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 14.1) internal successors, (141), 12 states have internal predecessors, (141), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-14 03:34:07,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1470 transitions. [2024-11-14 03:34:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-14 03:34:07,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:34:07,032 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-14 03:34:07,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 03:34:07,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 03:34:07,233 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:34:07,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:34:07,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1656262800, now seen corresponding path program 1 times [2024-11-14 03:34:07,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:34:07,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846590542] [2024-11-14 03:34:07,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:07,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:34:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-14 03:34:07,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:34:07,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846590542] [2024-11-14 03:34:07,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846590542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:34:07,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:34:07,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:34:07,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646585250] [2024-11-14 03:34:07,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:34:07,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:34:07,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:07,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:34:07,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:34:07,346 INFO L87 Difference]: Start difference. First operand 1295 states and 1470 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:34:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:34:07,823 INFO L93 Difference]: Finished difference Result 1305 states and 1479 transitions. [2024-11-14 03:34:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:34:07,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 102 [2024-11-14 03:34:07,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:34:07,830 INFO L225 Difference]: With dead ends: 1305 [2024-11-14 03:34:07,831 INFO L226 Difference]: Without dead ends: 1304 [2024-11-14 03:34:07,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 03:34:07,832 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 80 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:34:07,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 148 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:34:07,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2024-11-14 03:34:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1294. [2024-11-14 03:34:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1220 states have (on average 1.1049180327868853) internal successors, (1348), 1235 states have internal predecessors, (1348), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-14 03:34:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1460 transitions. [2024-11-14 03:34:07,981 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1460 transitions. Word has length 102 [2024-11-14 03:34:07,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:34:07,982 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1460 transitions. [2024-11-14 03:34:07,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:34:07,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1460 transitions. [2024-11-14 03:34:07,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-14 03:34:07,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:34:07,984 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:07,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 03:34:07,986 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:34:07,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:34:07,986 INFO L85 PathProgramCache]: Analyzing trace with hash 287727863, now seen corresponding path program 1 times [2024-11-14 03:34:07,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:34:07,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311514262] [2024-11-14 03:34:07,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:07,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:34:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:08,131 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:34:08,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:34:08,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311514262] [2024-11-14 03:34:08,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311514262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:34:08,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281584944] [2024-11-14 03:34:08,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:08,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:34:08,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:34:08,134 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:34:08,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:34:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:08,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:34:08,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:34:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:34:08,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:34:09,245 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:34:09,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281584944] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:34:09,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [599995254] [2024-11-14 03:34:09,248 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2024-11-14 03:34:09,248 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:34:09,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:34:09,248 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:34:09,249 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:34:13,485 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:34:13,487 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:34:13,490 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:34:27,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [599995254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:34:27,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:34:27,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [4, 5, 5] total 28 [2024-11-14 03:34:27,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754506868] [2024-11-14 03:34:27,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:34:27,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 03:34:27,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:27,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 03:34:27,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:34:27,583 INFO L87 Difference]: Start difference. First operand 1294 states and 1460 transitions. Second operand has 18 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:34:35,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:34:35,340 INFO L93 Difference]: Finished difference Result 1842 states and 2069 transitions. [2024-11-14 03:34:35,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 03:34:35,340 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 103 [2024-11-14 03:34:35,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:34:35,346 INFO L225 Difference]: With dead ends: 1842 [2024-11-14 03:34:35,347 INFO L226 Difference]: Without dead ends: 1253 [2024-11-14 03:34:35,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 241 SyntacticMatches, 44 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:34:35,349 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 135 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:34:35,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 116 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-14 03:34:35,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-11-14 03:34:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1250. [2024-11-14 03:34:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1178 states have (on average 1.100169779286927) internal successors, (1296), 1193 states have internal predecessors, (1296), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 03:34:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1404 transitions. [2024-11-14 03:34:35,516 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1404 transitions. Word has length 103 [2024-11-14 03:34:35,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:34:35,518 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1404 transitions. [2024-11-14 03:34:35,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 6.916666666666667) internal successors, (83), 13 states have internal predecessors, (83), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:34:35,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1404 transitions. [2024-11-14 03:34:35,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-14 03:34:35,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:34:35,521 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-14 03:34:35,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:34:35,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:34:35,722 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:34:35,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:34:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash 195460921, now seen corresponding path program 1 times [2024-11-14 03:34:35,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:34:35,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694690888] [2024-11-14 03:34:35,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:35,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:34:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:34:35,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:34:35,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694690888] [2024-11-14 03:34:35,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694690888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:34:35,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500257640] [2024-11-14 03:34:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:35,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:34:35,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:34:35,961 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:34:35,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:34:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:36,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:34:36,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:34:36,734 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:34:36,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:34:36,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500257640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:34:36,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:34:36,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-14 03:34:36,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566508641] [2024-11-14 03:34:36,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:34:36,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:34:36,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:36,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:34:36,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:34:36,736 INFO L87 Difference]: Start difference. First operand 1250 states and 1404 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 03:34:37,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:34:37,432 INFO L93 Difference]: Finished difference Result 1397 states and 1579 transitions. [2024-11-14 03:34:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:34:37,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 103 [2024-11-14 03:34:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:34:37,436 INFO L225 Difference]: With dead ends: 1397 [2024-11-14 03:34:37,437 INFO L226 Difference]: Without dead ends: 1396 [2024-11-14 03:34:37,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:34:37,438 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 82 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:34:37,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 197 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:34:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2024-11-14 03:34:37,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1249. [2024-11-14 03:34:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1178 states have (on average 1.0916808149405772) internal successors, (1286), 1192 states have internal predecessors, (1286), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 03:34:37,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1394 transitions. [2024-11-14 03:34:37,592 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1394 transitions. Word has length 103 [2024-11-14 03:34:37,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:34:37,592 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1394 transitions. [2024-11-14 03:34:37,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 03:34:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1394 transitions. [2024-11-14 03:34:37,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-14 03:34:37,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:34:37,594 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:37,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 03:34:37,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:34:37,795 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:34:37,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:34:37,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1666896799, now seen corresponding path program 1 times [2024-11-14 03:34:37,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:34:37,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295107028] [2024-11-14 03:34:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:37,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:34:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:38,001 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:34:38,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:34:38,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295107028] [2024-11-14 03:34:38,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295107028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:34:38,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759181052] [2024-11-14 03:34:38,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:38,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:34:38,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:34:38,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:34:38,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:34:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:38,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:34:38,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:34:38,653 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:34:38,653 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:34:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:34:39,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759181052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:34:39,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [145690503] [2024-11-14 03:34:39,210 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-14 03:34:39,210 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:34:39,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:34:39,212 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:34:39,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:34:43,106 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 198 for LOIs [2024-11-14 03:34:43,241 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:34:43,243 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:34:59,100 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27206#(and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~u~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 1 |ULTIMATE.start_main_~v~0#1|) (<= |ULTIMATE.start_main_~u~0#1| 4611686018427387903))' at error location [2024-11-14 03:34:59,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:34:59,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:34:59,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-14 03:34:59,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480843371] [2024-11-14 03:34:59,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:34:59,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 03:34:59,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:59,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 03:34:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1340, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 03:34:59,103 INFO L87 Difference]: Start difference. First operand 1249 states and 1394 transitions. Second operand has 16 states, 15 states have (on average 17.0) internal successors, (255), 16 states have internal predecessors, (255), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-14 03:35:01,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:01,195 INFO L93 Difference]: Finished difference Result 1258 states and 1404 transitions. [2024-11-14 03:35:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 03:35:01,196 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 17.0) internal successors, (255), 16 states have internal predecessors, (255), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 109 [2024-11-14 03:35:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:01,199 INFO L225 Difference]: With dead ends: 1258 [2024-11-14 03:35:01,199 INFO L226 Difference]: Without dead ends: 1256 [2024-11-14 03:35:01,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 246 SyntacticMatches, 46 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2147 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=474, Invalid=2076, Unknown=0, NotChecked=0, Total=2550 [2024-11-14 03:35:01,202 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 904 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:01,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 474 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 03:35:01,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-11-14 03:35:01,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1248. [2024-11-14 03:35:01,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1178 states have (on average 1.0780984719864177) internal successors, (1270), 1191 states have internal predecessors, (1270), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 03:35:01,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1378 transitions. [2024-11-14 03:35:01,344 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1378 transitions. Word has length 109 [2024-11-14 03:35:01,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:01,345 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 1378 transitions. [2024-11-14 03:35:01,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 17.0) internal successors, (255), 16 states have internal predecessors, (255), 8 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2024-11-14 03:35:01,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1378 transitions. [2024-11-14 03:35:01,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-14 03:35:01,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:01,347 INFO L215 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:01,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 03:35:01,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:35:01,547 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:35:01,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1351928819, now seen corresponding path program 1 times [2024-11-14 03:35:01,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:01,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586364913] [2024-11-14 03:35:01,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 14 proven. 47 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:35:01,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:01,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586364913] [2024-11-14 03:35:01,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586364913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:35:01,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405082327] [2024-11-14 03:35:01,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:01,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:35:01,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:35:01,743 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:35:01,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:35:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:01,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:35:01,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:35:02,256 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:35:02,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405082327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:02,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:35:02,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-14 03:35:02,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882079878] [2024-11-14 03:35:02,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:02,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:35:02,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:02,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:35:02,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:35:02,259 INFO L87 Difference]: Start difference. First operand 1248 states and 1378 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 03:35:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:02,850 INFO L93 Difference]: Finished difference Result 1250 states and 1378 transitions. [2024-11-14 03:35:02,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:35:02,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 123 [2024-11-14 03:35:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:02,855 INFO L225 Difference]: With dead ends: 1250 [2024-11-14 03:35:02,855 INFO L226 Difference]: Without dead ends: 1248 [2024-11-14 03:35:02,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:35:02,856 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 214 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:02,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 296 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:35:02,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2024-11-14 03:35:02,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1235. [2024-11-14 03:35:02,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1167 states have (on average 1.0702656383890317) internal successors, (1249), 1178 states have internal predecessors, (1249), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 03:35:02,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1357 transitions. [2024-11-14 03:35:02,996 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1357 transitions. Word has length 123 [2024-11-14 03:35:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:02,997 INFO L471 AbstractCegarLoop]: Abstraction has 1235 states and 1357 transitions. [2024-11-14 03:35:02,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-14 03:35:02,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1357 transitions. [2024-11-14 03:35:02,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-14 03:35:02,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:02,999 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:03,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:35:03,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:35:03,200 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:35:03,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:03,200 INFO L85 PathProgramCache]: Analyzing trace with hash -900108942, now seen corresponding path program 1 times [2024-11-14 03:35:03,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:03,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438399719] [2024-11-14 03:35:03,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:03,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:03,406 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 03:35:03,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:03,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438399719] [2024-11-14 03:35:03,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438399719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:35:03,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901910144] [2024-11-14 03:35:03,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:03,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:35:03,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:35:03,409 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:35:03,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:35:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:03,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:35:03,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 03:35:04,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:35:05,116 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 03:35:05,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901910144] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:35:05,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [70906156] [2024-11-14 03:35:05,118 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2024-11-14 03:35:05,118 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:35:05,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:35:05,119 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:35:05,119 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:35:08,455 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:35:08,456 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:35:08,458 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:35:21,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [70906156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:21,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:35:21,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [6, 6, 6] total 47 [2024-11-14 03:35:21,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034862686] [2024-11-14 03:35:21,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:21,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 03:35:21,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:21,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 03:35:21,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=1842, Unknown=0, NotChecked=0, Total=2256 [2024-11-14 03:35:21,821 INFO L87 Difference]: Start difference. First operand 1235 states and 1357 transitions. Second operand has 33 states, 25 states have (on average 3.36) internal successors, (84), 27 states have internal predecessors, (84), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:35:33,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:33,454 INFO L93 Difference]: Finished difference Result 3613 states and 4012 transitions. [2024-11-14 03:35:33,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-14 03:35:33,455 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 25 states have (on average 3.36) internal successors, (84), 27 states have internal predecessors, (84), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 152 [2024-11-14 03:35:33,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:33,460 INFO L225 Difference]: With dead ends: 3613 [2024-11-14 03:35:33,460 INFO L226 Difference]: Without dead ends: 1675 [2024-11-14 03:35:33,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 347 SyntacticMatches, 68 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3184 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=1077, Invalid=3753, Unknown=0, NotChecked=0, Total=4830 [2024-11-14 03:35:33,464 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 1473 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:33,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 101 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-14 03:35:33,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2024-11-14 03:35:33,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1540. [2024-11-14 03:35:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1460 states have (on average 1.0643835616438355) internal successors, (1554), 1471 states have internal predecessors, (1554), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-14 03:35:33,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1686 transitions. [2024-11-14 03:35:33,648 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1686 transitions. Word has length 152 [2024-11-14 03:35:33,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:33,649 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 1686 transitions. [2024-11-14 03:35:33,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 25 states have (on average 3.36) internal successors, (84), 27 states have internal predecessors, (84), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:35:33,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1686 transitions. [2024-11-14 03:35:33,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-14 03:35:33,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:33,651 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:35:33,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:35:33,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:35:33,859 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:35:33,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:33,859 INFO L85 PathProgramCache]: Analyzing trace with hash 257546600, now seen corresponding path program 1 times [2024-11-14 03:35:33,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:33,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479500179] [2024-11-14 03:35:33,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:33,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:33,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:35:33,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193090406] [2024-11-14 03:35:33,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:33,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:35:33,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:35:33,887 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:35:33,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 03:35:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:33,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:35:33,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:08,732 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 3 proven. 56 refuted. 23 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:36:08,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:19,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:36:19,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479500179] [2024-11-14 03:36:19,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:36:19,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193090406] [2024-11-14 03:36:19,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193090406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:36:19,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2042870037] [2024-11-14 03:36:19,107 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2024-11-14 03:36:19,107 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:36:19,107 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:36:19,107 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:36:19,107 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:36:23,199 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:36:23,201 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-14 03:36:23,203 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:39:35,799 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40630#(and (exists ((|v_ULTIMATE.start_main_~u~0#1_128| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~u~0#1_128| |v_ULTIMATE.start_main_~u~0#1_128|)) (<= |ULTIMATE.start_main_~v~0#1| 4611686018427387903) (<= 0 (+ |v_ULTIMATE.start_main_~u~0#1_128| 4611686018427387904)) (<= 1 |ULTIMATE.start_main_~v~0#1|) (or (and (<= |v_ULTIMATE.start_main_~u~0#1_128| 4611686018427387903) (<= |ULTIMATE.start_main_~r~0#1| 0)) (and (= (+ (* |v_ULTIMATE.start_main_~u~0#1_128| |v_ULTIMATE.start_main_~u~0#1_128|) (* 2 |ULTIMATE.start_main_~v~0#1|)) (+ (* |ULTIMATE.start_main_~A~0#1| 4) (* |ULTIMATE.start_main_~r~0#1| 4) (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|) (* 2 |v_ULTIMATE.start_main_~u~0#1_128|))) (<= (* |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~v~0#1|) 9223372036854775807) (<= (+ 3 |ULTIMATE.start_main_~r~0#1|) |v_ULTIMATE.start_main_~u~0#1_128|))) (<= |ULTIMATE.start_main_~A~0#1| 50) (<= 0 |ULTIMATE.start_main_~A~0#1|))) (<= 0 (+ 2305843009213693952 |ULTIMATE.start_main_~A~0#1| |ULTIMATE.start_main_~r~0#1|)))' at error location [2024-11-14 03:39:35,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:39:35,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:39:35,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 03:39:35,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937386002] [2024-11-14 03:39:35,800 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:39:35,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:39:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:39:35,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:39:35,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=2118, Unknown=19, NotChecked=0, Total=2550 [2024-11-14 03:39:35,802 INFO L87 Difference]: Start difference. First operand 1540 states and 1686 transitions. Second operand has 12 states, 9 states have (on average 15.444444444444445) internal successors, (139), 12 states have internal predecessors, (139), 6 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-14 03:39:38,122 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 [0] [2024-11-14 03:39:40,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:39:42,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:39:43,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-14 03:39:43,519 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-14 03:39:43,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 343 SyntacticMatches, 74 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2526 ImplicationChecksByTransitivity, 221.4s TimeCoverageRelationStatistics Valid=413, Invalid=2118, Unknown=19, NotChecked=0, Total=2550 [2024-11-14 03:39:43,521 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:39:43,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 3 Unknown, 0 Unchecked, 6.4s Time] [2024-11-14 03:39:43,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 03:39:43,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 03:39:43,722 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2024-11-14 03:39:43,727 INFO L158 Benchmark]: Toolchain (without parser) took 570518.43ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 92.5MB in the beginning and 1.0GB in the end (delta: -951.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-14 03:39:43,728 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 83.9MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:39:43,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.56ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:39:43,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.89ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:39:43,728 INFO L158 Benchmark]: Boogie Preprocessor took 39.64ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 78.3MB in the end (delta: 775.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:39:43,729 INFO L158 Benchmark]: RCFGBuilder took 1045.13ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 49.3MB in the end (delta: 28.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:39:43,729 INFO L158 Benchmark]: TraceAbstraction took 568994.40ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 48.9MB in the beginning and 1.0GB in the end (delta: -995.5MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-11-14 03:39:43,730 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23ms. Allocated memory is still 83.9MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.56ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.89ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.64ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 78.3MB in the end (delta: 775.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1045.13ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 49.3MB in the end (delta: 28.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 568994.40ms. Allocated memory was 117.4MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 48.9MB in the beginning and 1.0GB in the end (delta: -995.5MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/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_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/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 0ac0f213d1d000e527ab073eb0dd4288784176d966909606abb71d9dc425fd71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:39:46,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:39:46,713 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2024-11-14 03:39:46,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:39:46,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:39:46,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:39:46,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:39:46,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:39:46,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:39:46,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:39:46,765 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:39:46,765 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:39:46,766 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:39:46,766 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:39:46,766 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:39:46,766 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:39:46,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:39:46,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:39:46,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:39:46,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:39:46,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:39:46,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:39:46,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:39:46,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:39:46,771 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:39:46,771 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:39:46,771 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:39:46,771 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:39:46,772 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:39:46,772 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:39:46,772 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:39:46,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:39:46,772 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:39:46,773 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:39:46,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:39:46,773 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:39:46,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:39:46,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:39:46,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:39:46,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:39:46,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:39:46,775 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:39:46,775 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:39:46,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:39:46,775 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:39:46,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ff6703d3-b6bb-437c-93ed-6f0325618953/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 -> 0ac0f213d1d000e527ab073eb0dd4288784176d966909606abb71d9dc425fd71 [2024-11-14 03:39:47,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:39:47,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:39:47,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:39:47,150 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:39:47,150 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:39:47,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c Unable to find full path for "g++" [2024-11-14 03:39:49,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:39:49,564 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:39:49,565 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound50.c [2024-11-14 03:39:49,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/data/5faa711e3/668e68e573514fab96fe0e922552584b/FLAG57b1284f6 [2024-11-14 03:39:49,603 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/data/5faa711e3/668e68e573514fab96fe0e922552584b [2024-11-14 03:39:49,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:39:49,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:39:49,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:39:49,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:39:49,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:39:49,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:49,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d4f84e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49, skipping insertion in model container [2024-11-14 03:39:49,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:49,636 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:39:49,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:39:49,894 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:39:49,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:39:49,964 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:39:49,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49 WrapperNode [2024-11-14 03:39:49,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:39:49,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:39:49,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:39:49,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:39:49,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:49,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,004 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 150 [2024-11-14 03:39:50,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:39:50,005 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:39:50,005 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:39:50,005 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:39:50,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:39:50,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:39:50,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:39:50,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:39:50,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (1/1) ... [2024-11-14 03:39:50,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:39:50,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:39:50,076 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:39:50,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:39:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:39:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:39:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:39:50,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:39:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:39:50,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:39:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:39:50,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:39:50,190 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:39:50,192 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:40:48,433 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-14 03:40:48,433 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:40:48,459 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:40:48,459 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 03:40:48,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:40:48 BoogieIcfgContainer [2024-11-14 03:40:48,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:40:48,465 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:40:48,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:40:48,470 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:40:48,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:39:49" (1/3) ... [2024-11-14 03:40:48,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c70aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:40:48, skipping insertion in model container [2024-11-14 03:40:48,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:49" (2/3) ... [2024-11-14 03:40:48,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c70aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:40:48, skipping insertion in model container [2024-11-14 03:40:48,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:40:48" (3/3) ... [2024-11-14 03:40:48,474 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound50.c [2024-11-14 03:40:48,488 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:40:48,489 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG fermat1-ll_valuebound50.c that has 3 procedures, 215 locations, 1 initial locations, 3 loop locations, and 92 error locations. [2024-11-14 03:40:48,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:40:48,549 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;@4d900591, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:40:48,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2024-11-14 03:40:48,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 215 states, 112 states have (on average 1.9196428571428572) internal successors, (215), 204 states have internal predecessors, (215), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 03:40:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 03:40:48,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:40:48,562 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:40:48,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:40:48,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:40:48,568 INFO L85 PathProgramCache]: Analyzing trace with hash -36063535, now seen corresponding path program 1 times [2024-11-14 03:40:48,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:40:48,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647179785] [2024-11-14 03:40:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:40:48,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:40:48,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:40:48,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:40:48,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 03:40:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:40:48,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:40:48,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:40:48,673 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:40:48,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:40:48,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647179785] [2024-11-14 03:40:48,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647179785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:40:48,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:40:48,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:40:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98044402] [2024-11-14 03:40:48,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:40:48,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:40:48,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:40:48,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:40:48,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:40:48,698 INFO L87 Difference]: Start difference. First operand has 215 states, 112 states have (on average 1.9196428571428572) internal successors, (215), 204 states have internal predecessors, (215), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:40:48,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:40:48,736 INFO L93 Difference]: Finished difference Result 414 states and 465 transitions. [2024-11-14 03:40:48,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:40:48,739 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-14 03:40:48,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:40:48,748 INFO L225 Difference]: With dead ends: 414 [2024-11-14 03:40:48,748 INFO L226 Difference]: Without dead ends: 196 [2024-11-14 03:40:48,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:40:48,760 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:40:48,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:40:48,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-14 03:40:48,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-14 03:40:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 107 states have (on average 1.766355140186916) internal successors, (189), 186 states have internal predecessors, (189), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:40:48,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 203 transitions. [2024-11-14 03:40:48,828 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 203 transitions. Word has length 14 [2024-11-14 03:40:48,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:40:48,829 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 203 transitions. [2024-11-14 03:40:48,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:40:48,830 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 203 transitions. [2024-11-14 03:40:48,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 03:40:48,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:40:48,831 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:40:48,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 03:40:49,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:40:49,032 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:40:49,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:40:49,033 INFO L85 PathProgramCache]: Analyzing trace with hash 220212497, now seen corresponding path program 1 times [2024-11-14 03:40:49,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:40:49,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924139795] [2024-11-14 03:40:49,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:40:49,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:40:49,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:40:49,036 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:40:49,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 03:40:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:40:49,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:40:49,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:49,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:40:49,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:40:49,344 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:40:49,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924139795] [2024-11-14 03:40:49,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924139795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:40:49,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:40:49,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:40:49,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255408016] [2024-11-14 03:40:49,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:40:49,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:40:49,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:40:49,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:40:49,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:40:49,348 INFO L87 Difference]: Start difference. First operand 196 states and 203 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:40:50,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:40:50,521 INFO L93 Difference]: Finished difference Result 196 states and 203 transitions. [2024-11-14 03:40:50,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:40:50,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-14 03:40:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:40:50,534 INFO L225 Difference]: With dead ends: 196 [2024-11-14 03:40:50,536 INFO L226 Difference]: Without dead ends: 190 [2024-11-14 03:40:50,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:40:50,538 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 9 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:40:50,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 699 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:40:50,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-14 03:40:50,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-14 03:40:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 107 states have (on average 1.7102803738317758) internal successors, (183), 180 states have internal predecessors, (183), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:40:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 197 transitions. [2024-11-14 03:40:50,562 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 197 transitions. Word has length 18 [2024-11-14 03:40:50,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:40:50,568 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 197 transitions. [2024-11-14 03:40:50,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:40:50,568 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 197 transitions. [2024-11-14 03:40:50,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 03:40:50,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:40:50,569 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 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 03:40:50,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 03:40:50,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:40:50,770 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:40:50,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:40:50,770 INFO L85 PathProgramCache]: Analyzing trace with hash -607868052, now seen corresponding path program 1 times [2024-11-14 03:40:50,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:40:50,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27866321] [2024-11-14 03:40:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:40:50,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:40:50,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:40:50,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:40:50,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 03:40:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:40:50,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:40:50,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:51,433 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:40:51,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:40:51,726 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:40:51,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27866321] [2024-11-14 03:40:51,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27866321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:40:51,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [315041952] [2024-11-14 03:40:51,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:40:51,728 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:40:51,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:40:51,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:40:51,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-14 03:40:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:40:52,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:40:52,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:40:52,888 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:40:53,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [315041952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:40:53,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896007489] [2024-11-14 03:40:53,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:40:53,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:40:53,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:40:53,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:40:53,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:40:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:40:53,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:40:53,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:54,049 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:40:54,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:40:54,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896007489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:40:54,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:40:54,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-14 03:40:54,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539070711] [2024-11-14 03:40:54,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:40:54,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:40:54,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:40:54,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:40:54,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:40:54,221 INFO L87 Difference]: Start difference. First operand 190 states and 197 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:40:56,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:40:58,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:40:59,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:40:59,829 INFO L93 Difference]: Finished difference Result 190 states and 197 transitions. [2024-11-14 03:40:59,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:40:59,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-14 03:40:59,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:40:59,832 INFO L225 Difference]: With dead ends: 190 [2024-11-14 03:40:59,833 INFO L226 Difference]: Without dead ends: 187 [2024-11-14 03:40:59,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:40:59,833 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 147 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:40:59,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 494 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2024-11-14 03:40:59,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-14 03:40:59,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2024-11-14 03:40:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 107 states have (on average 1.6822429906542056) internal successors, (180), 177 states have internal predecessors, (180), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:40:59,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 194 transitions. [2024-11-14 03:40:59,846 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 194 transitions. Word has length 39 [2024-11-14 03:40:59,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:40:59,846 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 194 transitions. [2024-11-14 03:40:59,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:40:59,847 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 194 transitions. [2024-11-14 03:40:59,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 03:40:59,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:40:59,848 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 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 03:40:59,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:41:00,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-14 03:41:00,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 03:41:00,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:41:00,449 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 89 more)] === [2024-11-14 03:41:00,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:41:00,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1664040351, now seen corresponding path program 1 times [2024-11-14 03:41:00,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:41:00,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164908945] [2024-11-14 03:41:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:00,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:41:00,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:41:00,453 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:41:00,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 03:41:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:41:00,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:41:00,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:41:02,259 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:41:02,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:41:06,471 WARN L873 $PredicateComparison]: unable to prove that (bvsle (let ((.cse0 ((_ sign_extend 32) |c_ULTIMATE.start_main_~A~0#1|))) (bvadd ((_ sign_extend 1) (bvadd (bvneg .cse0) (let ((.cse1 ((_ sign_extend 32) |c_ULTIMATE.start_main_~R~0#1|))) (bvmul .cse1 .cse1)))) ((_ sign_extend 1) .cse0))) (_ bv9223372036854775807 65)) is different from true [2024-11-14 03:41:29,138 WARN L873 $PredicateComparison]: unable to prove that (or (not (= (bvsrem |c_ULTIMATE.start_main_~A~0#1| (_ bv2 32)) (_ bv1 32))) (bvsle (let ((.cse0 ((_ sign_extend 32) |c_ULTIMATE.start_main_~A~0#1|))) (bvadd ((_ sign_extend 1) (bvadd (bvneg .cse0) (let ((.cse1 ((_ sign_extend 32) |c_ULTIMATE.start_main_~R~0#1|))) (bvmul .cse1 .cse1)))) ((_ sign_extend 1) .cse0))) (_ bv9223372036854775807 65))) is different from true [2024-11-14 03:41:39,266 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13| (_ BitVec 32))) (or (bvsle (let ((.cse1 ((_ sign_extend 32) |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13|))) (bvadd ((_ sign_extend 1) (bvadd (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_3|))) (bvmul .cse0 .cse0)) (bvneg .cse1))) ((_ sign_extend 1) .cse1))) (_ bv9223372036854775807 65)) (= (_ bv1 32) (bvsrem |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13| (_ bv2 32)))))) is different from true [2024-11-14 03:41:57,568 WARN L873 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_3| (_ BitVec 32)) (|v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13| (_ BitVec 32))) (or (bvsle (let ((.cse1 ((_ sign_extend 32) |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13|))) (bvadd ((_ sign_extend 1) (bvadd (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_3|))) (bvmul .cse0 .cse0)) (bvneg .cse1))) ((_ sign_extend 1) .cse1))) (_ bv9223372036854775807 65)) (= (_ bv1 32) (bvsrem |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_13| (_ bv2 32)))))) is different from true [2024-11-14 03:42:58,822 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_15| (_ BitVec 32))) (or (bvsle (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_15|))) (bvadd ((_ sign_extend 1) .cse0) ((_ sign_extend 1) (bvadd (let ((.cse1 ((_ sign_extend 32) |v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_5|))) (bvmul .cse1 .cse1)) (bvneg .cse0))))) (_ bv9223372036854775807 65)) (not (= (_ bv1 32) (bvsrem |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_15| (_ bv2 32))))))) is different from true [2024-11-14 03:43:17,065 WARN L873 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_15| (_ BitVec 32))) (or (bvsle (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_15|))) (bvadd ((_ sign_extend 1) .cse0) ((_ sign_extend 1) (bvadd (let ((.cse1 ((_ sign_extend 32) |v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_5|))) (bvmul .cse1 .cse1)) (bvneg .cse0))))) (_ bv9223372036854775807 65)) (not (= (_ bv1 32) (bvsrem |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_15| (_ bv2 32))))))) is different from true [2024-11-14 03:43:17,116 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 3 times theorem prover too weak. 9 trivial. 3 not checked. [2024-11-14 03:43:17,116 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:43:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164908945] [2024-11-14 03:43:17,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164908945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:43:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1096490763] [2024-11-14 03:43:17,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:43:17,117 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:43:17,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:43:17,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:43:17,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-14 03:43:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:17,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:43:17,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:43:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:43:19,039 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:43:23,158 WARN L873 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~A~0#1| (_ BitVec 32))) (bvsle (let ((.cse0 ((_ sign_extend 32) |ULTIMATE.start_main_~A~0#1|))) (bvadd ((_ sign_extend 1) .cse0) ((_ sign_extend 1) (bvadd (bvneg .cse0) (let ((.cse1 ((_ sign_extend 32) |c_ULTIMATE.start_main_~R~0#1|))) (bvmul .cse1 .cse1)))))) (_ bv9223372036854775807 65))) is different from true [2024-11-14 03:43:39,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1096490763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:43:39,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774103430] [2024-11-14 03:43:39,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:43:39,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:43:39,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:43:39,791 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:43:39,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6703d3-b6bb-437c-93ed-6f0325618953/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:43:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:40,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:43:40,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:43:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:43:41,561 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:44:14,487 WARN L873 $PredicateComparison]: unable to prove that (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_10| (_ BitVec 32)) (|v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_20| (_ BitVec 32))) (or (= (bvsrem |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_20| (_ bv2 32)) (_ bv1 32)) (bvsle (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_20|))) (bvadd ((_ sign_extend 1) .cse0) ((_ sign_extend 1) (bvadd (let ((.cse1 ((_ sign_extend 32) |v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_10|))) (bvmul .cse1 .cse1)) (bvneg .cse0))))) (_ bv9223372036854775807 65))))) is different from true [2024-11-14 03:44:32,781 WARN L873 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_10| (_ BitVec 32)) (|v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_20| (_ BitVec 32))) (or (= (bvsrem |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_20| (_ bv2 32)) (_ bv1 32)) (bvsle (let ((.cse0 ((_ sign_extend 32) |v_ULTIMATE.start_main_~A~0#1_BEFORE_CALL_20|))) (bvadd ((_ sign_extend 1) .cse0) ((_ sign_extend 1) (bvadd (let ((.cse1 ((_ sign_extend 32) |v_ULTIMATE.start_main_~R~0#1_BEFORE_CALL_10|))) (bvmul .cse1 .cse1)) (bvneg .cse0))))) (_ bv9223372036854775807 65))))) is different from true