./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound5.i --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_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/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_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/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_028b0a7e-1f8e-4c45-8c18-00b36db5742f/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 3d0e3bce6f4731d98bf8e5301c405fc62948194b21f76143536933e108212a93 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:10:12,466 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:10:12,535 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:10:12,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:10:12,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:10:12,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:10:12,564 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:10:12,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:10:12,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:10:12,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:10:12,565 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:10:12,565 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:10:12,565 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:10:12,565 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:10:12,565 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:10:12,565 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:10:12,566 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:10:12,566 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:10:12,566 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:10:12,566 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:10:12,566 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:10:12,566 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:10:12,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:10:12,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:10:12,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:10:12,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:10:12,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:10:12,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:10:12,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:10:12,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:10:12,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:10:12,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:10:12,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:10:12,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:10:12,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:10:12,569 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:10:12,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:10:12,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:10:12,571 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:10:12,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:10:12,571 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_028b0a7e-1f8e-4c45-8c18-00b36db5742f/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 -> 3d0e3bce6f4731d98bf8e5301c405fc62948194b21f76143536933e108212a93 [2024-11-14 05:10:12,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:10:12,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:10:12,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:10:12,982 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:10:12,982 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:10:12,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound5.i Unable to find full path for "g++" [2024-11-14 05:10:15,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:10:15,414 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:10:15,415 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound5.i [2024-11-14 05:10:15,423 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/data/eb2311a1c/4402663795824ff7b7cbc7eff6a2d952/FLAG8bdfb71fb [2024-11-14 05:10:15,440 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/data/eb2311a1c/4402663795824ff7b7cbc7eff6a2d952 [2024-11-14 05:10:15,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:10:15,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:10:15,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:10:15,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:10:15,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:10:15,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c9124f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15, skipping insertion in model container [2024-11-14 05:10:15,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:10:15,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:10:15,744 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:10:15,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:10:15,797 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:10:15,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15 WrapperNode [2024-11-14 05:10:15,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:10:15,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:10:15,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:10:15,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:10:15,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,847 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-11-14 05:10:15,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:10:15,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:10:15,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:10:15,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:10:15,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,885 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:10:15,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:10:15,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:10:15,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:10:15,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (1/1) ... [2024-11-14 05:10:15,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:10:15,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:15,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:10:15,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:10:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:10:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:10:15,973 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:10:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:10:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:10:15,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:10:15,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:10:15,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:10:16,056 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:10:16,059 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:10:16,323 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-14 05:10:16,323 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:10:16,404 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:10:16,405 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 05:10:16,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:10:16 BoogieIcfgContainer [2024-11-14 05:10:16,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:10:16,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:10:16,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:10:16,416 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:10:16,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:10:15" (1/3) ... [2024-11-14 05:10:16,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3c6020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:10:16, skipping insertion in model container [2024-11-14 05:10:16,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:15" (2/3) ... [2024-11-14 05:10:16,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3c6020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:10:16, skipping insertion in model container [2024-11-14 05:10:16,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:10:16" (3/3) ... [2024-11-14 05:10:16,420 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin_unwindbound5.i [2024-11-14 05:10:16,441 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:10:16,443 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG divbin_unwindbound5.i that has 3 procedures, 26 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-11-14 05:10:16,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:10:16,540 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;@368c74fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:10:16,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-14 05:10:16,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 19 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:10:16,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:10:16,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:16,560 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:16,561 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:16,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:16,570 INFO L85 PathProgramCache]: Analyzing trace with hash 645110086, now seen corresponding path program 1 times [2024-11-14 05:10:16,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:16,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074230563] [2024-11-14 05:10:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:16,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:16,983 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 05:10:16,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:16,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074230563] [2024-11-14 05:10:16,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074230563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:16,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:16,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:10:16,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92408685] [2024-11-14 05:10:16,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:16,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:10:16,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:17,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:10:17,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:17,027 INFO L87 Difference]: Start difference. First operand has 26 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 19 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:17,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:17,189 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2024-11-14 05:10:17,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:17,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2024-11-14 05:10:17,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:17,200 INFO L225 Difference]: With dead ends: 45 [2024-11-14 05:10:17,201 INFO L226 Difference]: Without dead ends: 27 [2024-11-14 05:10:17,206 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 05:10:17,210 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:17,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:17,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-14 05:10:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-14 05:10:17,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:10:17,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2024-11-14 05:10:17,255 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2024-11-14 05:10:17,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:17,257 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2024-11-14 05:10:17,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2024-11-14 05:10:17,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 05:10:17,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:17,262 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:17,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:10:17,262 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:17,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:17,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2026622410, now seen corresponding path program 1 times [2024-11-14 05:10:17,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:17,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6248843] [2024-11-14 05:10:17,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:17,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:17,615 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 05:10:17,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:17,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6248843] [2024-11-14 05:10:17,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6248843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:17,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:17,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:10:17,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381227781] [2024-11-14 05:10:17,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:17,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:17,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:17,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:17,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:10:17,622 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:17,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:17,846 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2024-11-14 05:10:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:10:17,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-14 05:10:17,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:17,849 INFO L225 Difference]: With dead ends: 43 [2024-11-14 05:10:17,849 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 05:10:17,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:10:17,851 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:17,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 63 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:10:17,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 05:10:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2024-11-14 05:10:17,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.32) internal successors, (33), 28 states have internal predecessors, (33), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:10:17,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2024-11-14 05:10:17,870 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 15 [2024-11-14 05:10:17,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:17,871 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2024-11-14 05:10:17,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2024-11-14 05:10:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 05:10:17,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:17,873 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:17,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:10:17,874 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:17,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2026623692, now seen corresponding path program 1 times [2024-11-14 05:10:17,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:17,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021134169] [2024-11-14 05:10:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:17,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:18,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:18,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021134169] [2024-11-14 05:10:18,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021134169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:18,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481690836] [2024-11-14 05:10:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:18,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:18,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:18,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:18,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:10:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:18,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:10:18,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:18,360 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 05:10:18,360 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:18,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481690836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:18,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:10:18,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 05:10:18,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709306854] [2024-11-14 05:10:18,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:18,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:10:18,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:18,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:10:18,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:10:18,363 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:18,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:18,458 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-11-14 05:10:18,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:10:18,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-14 05:10:18,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:18,460 INFO L225 Difference]: With dead ends: 44 [2024-11-14 05:10:18,461 INFO L226 Difference]: Without dead ends: 43 [2024-11-14 05:10:18,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:10:18,463 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:18,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 34 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:18,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-14 05:10:18,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2024-11-14 05:10:18,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.28) internal successors, (32), 27 states have internal predecessors, (32), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:10:18,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2024-11-14 05:10:18,482 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 15 [2024-11-14 05:10:18,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:18,483 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2024-11-14 05:10:18,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:18,484 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2024-11-14 05:10:18,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 05:10:18,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:18,486 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:18,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 05:10:18,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:18,691 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:18,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:18,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1599214667, now seen corresponding path program 1 times [2024-11-14 05:10:18,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:18,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591334913] [2024-11-14 05:10:18,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:18,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:18,880 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 05:10:18,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591334913] [2024-11-14 05:10:18,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591334913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:18,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:18,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:10:18,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294329231] [2024-11-14 05:10:18,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:18,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:18,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:18,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:18,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:10:18,884 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:19,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:19,022 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2024-11-14 05:10:19,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:10:19,023 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-14 05:10:19,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:19,025 INFO L225 Difference]: With dead ends: 44 [2024-11-14 05:10:19,026 INFO L226 Difference]: Without dead ends: 43 [2024-11-14 05:10:19,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:10:19,028 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:19,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 55 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:19,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-14 05:10:19,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2024-11-14 05:10:19,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.25) internal successors, (35), 30 states have internal predecessors, (35), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:10:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2024-11-14 05:10:19,048 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 16 [2024-11-14 05:10:19,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:19,048 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2024-11-14 05:10:19,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:19,048 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2024-11-14 05:10:19,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 05:10:19,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:19,049 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:19,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:10:19,049 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:19,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:19,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1599174945, now seen corresponding path program 1 times [2024-11-14 05:10:19,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:19,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833130974] [2024-11-14 05:10:19,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:19,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:19,205 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:19,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833130974] [2024-11-14 05:10:19,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833130974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118527782] [2024-11-14 05:10:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:19,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:19,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:19,209 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:19,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:10:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:19,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:10:19,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:19,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:19,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118527782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:19,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:10:19,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 05:10:19,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201716148] [2024-11-14 05:10:19,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:19,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:10:19,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:19,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:10:19,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:10:19,325 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:19,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:19,432 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2024-11-14 05:10:19,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:19,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-14 05:10:19,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:19,436 INFO L225 Difference]: With dead ends: 43 [2024-11-14 05:10:19,436 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 05:10:19,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:10:19,437 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:19,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 49 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:19,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 05:10:19,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2024-11-14 05:10:19,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 29 states have internal predecessors, (34), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:10:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-14 05:10:19,457 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 16 [2024-11-14 05:10:19,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:19,458 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-14 05:10:19,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:19,458 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-14 05:10:19,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 05:10:19,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:19,491 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:19,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:10:19,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:19,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:19,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1243493167, now seen corresponding path program 1 times [2024-11-14 05:10:19,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:19,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215834713] [2024-11-14 05:10:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:19,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:19,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215834713] [2024-11-14 05:10:19,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215834713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:19,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949198949] [2024-11-14 05:10:19,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:19,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:19,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:19,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:19,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:10:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:19,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:10:19,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:19,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:20,095 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:20,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949198949] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:10:20,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1314277479] [2024-11-14 05:10:20,123 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2024-11-14 05:10:20,123 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:10:20,127 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:10:20,132 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:10:20,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:21,005 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-14 05:10:21,009 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:10:21,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1314277479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:21,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:21,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7, 5, 6] total 24 [2024-11-14 05:10:21,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899326599] [2024-11-14 05:10:21,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:21,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:10:21,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:21,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:10:21,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2024-11-14 05:10:21,470 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:10:22,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:22,009 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2024-11-14 05:10:22,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 05:10:22,010 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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 19 [2024-11-14 05:10:22,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:22,011 INFO L225 Difference]: With dead ends: 50 [2024-11-14 05:10:22,012 INFO L226 Difference]: Without dead ends: 49 [2024-11-14 05:10:22,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:10:22,014 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:22,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 85 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:10:22,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-14 05:10:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 39. [2024-11-14 05:10:22,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 30 states have (on average 1.2) internal successors, (36), 31 states have internal predecessors, (36), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:10:22,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2024-11-14 05:10:22,034 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 19 [2024-11-14 05:10:22,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:22,035 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2024-11-14 05:10:22,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:10:22,035 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2024-11-14 05:10:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 05:10:22,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:22,036 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:22,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:10:22,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:10:22,237 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:22,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:22,238 INFO L85 PathProgramCache]: Analyzing trace with hash 106417550, now seen corresponding path program 1 times [2024-11-14 05:10:22,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:22,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990303938] [2024-11-14 05:10:22,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:22,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:22,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:22,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990303938] [2024-11-14 05:10:22,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990303938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:22,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852095453] [2024-11-14 05:10:22,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:22,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:22,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:22,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:22,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:10:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:22,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:10:22,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:22,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:22,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852095453] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:10:22,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [655923495] [2024-11-14 05:10:22,552 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:10:22,557 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:10:22,557 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:10:22,557 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:10:22,557 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:23,062 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-14 05:10:23,063 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:10:23,497 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1102#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (= ~counter~0 2147483647))' at error location [2024-11-14 05:10:23,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:10:23,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:23,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-14 05:10:23,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495325340] [2024-11-14 05:10:23,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:10:23,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:10:23,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:23,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:10:23,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-11-14 05:10:23,500 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:10:23,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:23,692 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2024-11-14 05:10:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:10:23,693 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 20 [2024-11-14 05:10:23,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:23,694 INFO L225 Difference]: With dead ends: 75 [2024-11-14 05:10:23,695 INFO L226 Difference]: Without dead ends: 63 [2024-11-14 05:10:23,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=174, Invalid=756, Unknown=0, NotChecked=0, Total=930 [2024-11-14 05:10:23,696 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 33 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:23,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 84 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:23,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-14 05:10:23,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2024-11-14 05:10:23,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 45 states have internal predecessors, (52), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:10:23,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2024-11-14 05:10:23,710 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 20 [2024-11-14 05:10:23,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:23,710 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2024-11-14 05:10:23,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:10:23,711 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2024-11-14 05:10:23,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 05:10:23,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:23,711 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:23,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:10:23,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:23,912 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:23,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:23,912 INFO L85 PathProgramCache]: Analyzing trace with hash 106469380, now seen corresponding path program 1 times [2024-11-14 05:10:23,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:23,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838048571] [2024-11-14 05:10:23,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:23,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:24,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:24,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838048571] [2024-11-14 05:10:24,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838048571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:24,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394675460] [2024-11-14 05:10:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:24,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:24,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:24,094 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:24,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:10:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:24,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:10:24,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:24,239 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:24,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:24,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394675460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:24,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:10:24,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-14 05:10:24,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445647406] [2024-11-14 05:10:24,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:24,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:24,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:24,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:24,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:10:24,241 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:24,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:24,317 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2024-11-14 05:10:24,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:24,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-14 05:10:24,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:24,320 INFO L225 Difference]: With dead ends: 53 [2024-11-14 05:10:24,320 INFO L226 Difference]: Without dead ends: 52 [2024-11-14 05:10:24,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-14 05:10:24,321 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:24,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 27 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:10:24,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-14 05:10:24,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 42. [2024-11-14 05:10:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:10:24,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-11-14 05:10:24,331 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 20 [2024-11-14 05:10:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:24,332 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-11-14 05:10:24,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:24,332 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2024-11-14 05:10:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 05:10:24,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:24,333 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:24,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 05:10:24,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:24,534 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:24,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:24,534 INFO L85 PathProgramCache]: Analyzing trace with hash -994416453, now seen corresponding path program 1 times [2024-11-14 05:10:24,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:24,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883726556] [2024-11-14 05:10:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:24,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:24,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:24,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883726556] [2024-11-14 05:10:24,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883726556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:24,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752952263] [2024-11-14 05:10:24,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:24,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:24,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:24,643 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:24,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:10:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:24,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:10:24,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:24,791 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:24,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:24,915 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:24,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752952263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:10:24,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [367862422] [2024-11-14 05:10:24,917 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:10:24,917 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:10:24,917 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:10:24,917 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:10:24,918 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:25,347 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-14 05:10:25,349 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:10:25,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [367862422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:25,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:25,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 6, 6] total 29 [2024-11-14 05:10:25,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745092099] [2024-11-14 05:10:25,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:25,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:10:25,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:25,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:10:25,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=686, Unknown=0, NotChecked=0, Total=870 [2024-11-14 05:10:25,917 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:10:26,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:26,236 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2024-11-14 05:10:26,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 05:10:26,236 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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 21 [2024-11-14 05:10:26,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:26,237 INFO L225 Difference]: With dead ends: 46 [2024-11-14 05:10:26,237 INFO L226 Difference]: Without dead ends: 45 [2024-11-14 05:10:26,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:10:26,239 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:26,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 27 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:26,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-14 05:10:26,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2024-11-14 05:10:26,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:10:26,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-11-14 05:10:26,246 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 21 [2024-11-14 05:10:26,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:26,247 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-11-14 05:10:26,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:10:26,247 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2024-11-14 05:10:26,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 05:10:26,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:26,248 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:26,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:10:26,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 05:10:26,452 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:26,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:26,453 INFO L85 PathProgramCache]: Analyzing trace with hash 708428467, now seen corresponding path program 1 times [2024-11-14 05:10:26,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:26,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880483198] [2024-11-14 05:10:26,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:26,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:26,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:26,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:26,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880483198] [2024-11-14 05:10:26,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880483198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:26,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454353420] [2024-11-14 05:10:26,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:26,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:26,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:26,604 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:26,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:10:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:26,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:10:26,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:26,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:26,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454353420] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:10:26,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1788939128] [2024-11-14 05:10:26,883 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-14 05:10:26,885 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:10:26,886 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:10:26,886 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:10:26,886 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:27,388 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2024-11-14 05:10:27,403 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-14 05:10:27,404 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:10:28,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1788939128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:28,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:28,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [8, 6, 6] total 32 [2024-11-14 05:10:28,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188267007] [2024-11-14 05:10:28,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:28,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 05:10:28,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:28,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 05:10:28,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 05:10:28,390 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:10:28,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:28,693 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2024-11-14 05:10:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 05:10:28,694 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 24 [2024-11-14 05:10:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:28,694 INFO L225 Difference]: With dead ends: 59 [2024-11-14 05:10:28,694 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 05:10:28,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=269, Invalid=853, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 05:10:28,696 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:28,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 24 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:10:28,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 05:10:28,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-14 05:10:28,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:10:28,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2024-11-14 05:10:28,703 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 24 [2024-11-14 05:10:28,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:28,704 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2024-11-14 05:10:28,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:10:28,704 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2024-11-14 05:10:28,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 05:10:28,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:28,705 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:28,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:10:28,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:10:28,906 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:28,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:28,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1712576953, now seen corresponding path program 1 times [2024-11-14 05:10:28,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:28,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637474655] [2024-11-14 05:10:28,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:28,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:29,093 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:29,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:29,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637474655] [2024-11-14 05:10:29,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637474655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:29,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413369615] [2024-11-14 05:10:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:29,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:29,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:29,098 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:29,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:10:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:29,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:10:29,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:29,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:29,487 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:29,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413369615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:10:29,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1654560277] [2024-11-14 05:10:29,489 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-14 05:10:29,491 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:10:29,492 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:10:29,492 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:10:29,492 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:30,088 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 for LOIs [2024-11-14 05:10:30,095 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-14 05:10:30,097 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:10:31,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1654560277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:31,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:31,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [10, 8, 8] total 40 [2024-11-14 05:10:31,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676333869] [2024-11-14 05:10:31,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:31,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 05:10:31,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:31,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 05:10:31,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=1325, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 05:10:31,097 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 18 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:10:32,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:32,329 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2024-11-14 05:10:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 05:10:32,330 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 29 [2024-11-14 05:10:32,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:32,331 INFO L225 Difference]: With dead ends: 51 [2024-11-14 05:10:32,331 INFO L226 Difference]: Without dead ends: 39 [2024-11-14 05:10:32,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 932 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=416, Invalid=1746, Unknown=0, NotChecked=0, Total=2162 [2024-11-14 05:10:32,332 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 27 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:32,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 26 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:10:32,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-14 05:10:32,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-14 05:10:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:10:32,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2024-11-14 05:10:32,339 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 29 [2024-11-14 05:10:32,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:32,339 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2024-11-14 05:10:32,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:10:32,339 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2024-11-14 05:10:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 05:10:32,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:32,340 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:32,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-14 05:10:32,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 05:10:32,541 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:32,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:32,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1028826156, now seen corresponding path program 2 times [2024-11-14 05:10:32,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:32,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441686906] [2024-11-14 05:10:32,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:32,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:32,812 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:32,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:32,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441686906] [2024-11-14 05:10:32,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441686906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:32,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026304124] [2024-11-14 05:10:32,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:10:32,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:32,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:32,816 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:32,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:10:32,862 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:10:32,862 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:10:32,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:10:32,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 05:10:32,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:33,070 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 05:10:33,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026304124] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:10:33,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1582031501] [2024-11-14 05:10:33,072 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 05:10:33,072 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:10:33,073 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:10:33,073 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:10:33,073 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:33,379 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 7 for LOIs [2024-11-14 05:10:33,382 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:10:34,000 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2657#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~q~0#1| 0) (= ~counter~0 2147483647))' at error location [2024-11-14 05:10:34,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:10:34,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:34,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 23 [2024-11-14 05:10:34,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100790236] [2024-11-14 05:10:34,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:10:34,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:10:34,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:34,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:10:34,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 05:10:34,002 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:10:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:34,379 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2024-11-14 05:10:34,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 05:10:34,380 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-11-14 05:10:34,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:34,381 INFO L225 Difference]: With dead ends: 64 [2024-11-14 05:10:34,381 INFO L226 Difference]: Without dead ends: 55 [2024-11-14 05:10:34,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 77 SyntacticMatches, 6 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=469, Invalid=1883, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 05:10:34,383 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 82 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:34,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 51 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:34,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-14 05:10:34,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-14 05:10:34,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 47 states have internal predecessors, (49), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:10:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2024-11-14 05:10:34,390 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 35 [2024-11-14 05:10:34,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:34,391 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2024-11-14 05:10:34,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 05:10:34,391 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2024-11-14 05:10:34,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:10:34,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:34,392 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:34,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 05:10:34,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 05:10:34,593 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-14 05:10:34,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:34,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1000129290, now seen corresponding path program 1 times [2024-11-14 05:10:34,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:34,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531309046] [2024-11-14 05:10:34,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:34,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:34,685 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-14 05:10:34,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:34,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531309046] [2024-11-14 05:10:34,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531309046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:34,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:34,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:10:34,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716222290] [2024-11-14 05:10:34,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:34,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:10:34,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:34,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:10:34,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:10:34,687 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:10:34,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:34,720 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2024-11-14 05:10:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:34,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-11-14 05:10:34,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:34,722 INFO L225 Difference]: With dead ends: 55 [2024-11-14 05:10:34,722 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:10:34,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:10:34,723 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:34,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:10:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:10:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:10:34,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:34,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:10:34,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2024-11-14 05:10:34,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:34,724 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:10:34,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 05:10:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:10:34,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:10:34,727 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-14 05:10:34,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-14 05:10:34,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-14 05:10:34,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-14 05:10:34,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 05:10:34,731 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:34,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:10:35,233 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:10:35,245 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:10:35,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:10:35,249 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:10:35,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:10:35,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:10:35,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:10:35,250 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:10:35,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:10:35,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:10:35,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:10:35,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:10:35,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:10:35,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:10:35,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:10:35,251 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:10:35,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:10:35,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:10:35,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:10:35,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:10:35,252 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:10:35,259 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:10:35,259 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:10:35,259 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:10:35,259 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:10:35,259 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:10:35,259 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:10:35,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:10:35,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:10:35,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:10:35,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:10:35,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:10:35,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:10:35,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:10:35,260 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:10:35,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:10:35,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:10:35,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:10:35,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:10:35,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:10:35,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:10:35,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-11-14 05:10:35,261 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] [2024-11-14 05:10:35,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:10:35,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:10:35,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:10:35,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:10:35,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-14 05:10:35,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-14 05:10:35,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:10:35,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:10:35,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:10:35,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-14 05:10:35,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-14 05:10:35,263 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-14 05:10:35,268 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-14 05:10:35,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:10:35 BoogieIcfgContainer [2024-11-14 05:10:35,271 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:10:35,271 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:10:35,273 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:10:35,273 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:10:35,274 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:10:16" (3/4) ... [2024-11-14 05:10:35,276 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:10:35,280 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-14 05:10:35,280 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-14 05:10:35,284 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-14 05:10:35,284 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-14 05:10:35,285 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 05:10:35,285 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:10:35,377 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:10:35,377 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:10:35,377 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:10:35,379 INFO L158 Benchmark]: Toolchain (without parser) took 19933.51ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 92.7MB in the beginning and 74.5MB in the end (delta: 18.3MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. [2024-11-14 05:10:35,379 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:10:35,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.16ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 81.9MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:10:35,380 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.01ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.5MB in the end (delta: 891.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:10:35,380 INFO L158 Benchmark]: Boogie Preprocessor took 36.77ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.8MB in the end (delta: 732.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:10:35,381 INFO L158 Benchmark]: RCFGBuilder took 515.14ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 66.5MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:10:35,381 INFO L158 Benchmark]: TraceAbstraction took 18861.93ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 65.6MB in the beginning and 80.6MB in the end (delta: -14.9MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2024-11-14 05:10:35,381 INFO L158 Benchmark]: Witness Printer took 106.10ms. Allocated memory is still 218.1MB. Free memory was 80.6MB in the beginning and 74.5MB in the end (delta: 6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:10:35,384 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.16ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 81.9MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.01ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.5MB in the end (delta: 891.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.77ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.8MB in the end (delta: 732.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 515.14ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 66.5MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18861.93ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 65.6MB in the beginning and 80.6MB in the end (delta: -14.9MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. * Witness Printer took 106.10ms. Allocated memory is still 218.1MB. Free memory was 80.6MB in the beginning and 74.5MB in the end (delta: 6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#length,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 18.2s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 285 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 284 mSDsluCounter, 613 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 458 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1212 IncrementalHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 155 mSDtfsCounter, 1212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 621 GetRequests, 337 SyntacticMatches, 19 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3500 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=12, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 57 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 495 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 1407 SizeOfPredicates, 27 NumberOfNonLiveVariables, 541 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 28 InterpolantComputations, 7 PerfectInterpolantSequences, 253/370 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 2.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 10, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 72, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 120, TOOLS_POST_TIME: 1.2s, TOOLS_POST_CALL_APPLICATIONS: 36, TOOLS_POST_CALL_TIME: 0.5s, TOOLS_POST_RETURN_APPLICATIONS: 26, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 181, TOOLS_QUANTIFIERELIM_TIME: 1.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 276, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 40, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 7, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 72, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 5, LOOP_SUMMARIZER_CACHE_MISSES: 5, LOOP_SUMMARIZER_OVERALL_TIME: 1.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 26, CALL_SUMMARIZER_CACHE_MISSES: 6, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 935, DAG_COMPRESSION_RETAINED_NODES: 232, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((2 <= counter) && (counter <= 5)) || ((((1 <= counter) && (q == 0)) && (counter <= 5)) && (((long long) r + 1) <= b))) || (counter == 6)) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((1 <= B) && (q == 0)) && (B == b)) && (B <= 2147483646)) && (counter == 0)) && (A == r)) || (((1 <= counter) && (q == 0)) && (counter <= 5))) - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (counter == 0) Ensures: (((cond != 0) && (counter == 0)) && (counter == \old(counter))) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-11-14 05:10:35,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_028b0a7e-1f8e-4c45-8c18-00b36db5742f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE