./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/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_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/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_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/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 e40af029af23d5cbf5d8bd74acfdc7af42526c81be3e447d3e43ec16d52857d1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:43:53,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:43:53,803 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 04:43:53,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:43:53,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:43:53,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:43:53,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:43:53,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:43:53,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:43:53,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:43:53,852 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:43:53,852 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:43:53,853 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:43:53,853 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:43:53,853 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:43:53,853 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:43:53,853 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:43:53,853 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:43:53,853 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:43:53,853 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:43:53,853 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:43:53,853 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:43:53,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:43:53,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:43:53,854 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:43:53,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:43:53,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:43:53,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:43:53,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:43:53,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:43:53,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:43:53,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:43:53,856 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:43:53,856 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:43:53,857 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:43:53,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:43:53,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:43:53,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:43:53,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:43:53,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:43:53,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:43:53,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:43:53,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:43:53,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:43:53,858 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:43:53,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:43:53,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:43:53,858 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:43:53,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:43:53,858 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_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/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 -> e40af029af23d5cbf5d8bd74acfdc7af42526c81be3e447d3e43ec16d52857d1 [2024-11-14 04:43:54,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:43:54,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:43:54,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:43:54,213 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:43:54,213 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:43:54,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound100.c Unable to find full path for "g++" [2024-11-14 04:43:56,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:43:56,376 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:43:56,378 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_unwindbound100.c [2024-11-14 04:43:56,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/data/a06a47764/55c57064fb4d4bc7951300c94d8fad1f/FLAGbc6b97642 [2024-11-14 04:43:56,411 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/data/a06a47764/55c57064fb4d4bc7951300c94d8fad1f [2024-11-14 04:43:56,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:43:56,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:43:56,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:43:56,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:43:56,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:43:56,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b898c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56, skipping insertion in model container [2024-11-14 04:43:56,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,438 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:43:56,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:43:56,650 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:43:56,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:43:56,705 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:43:56,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56 WrapperNode [2024-11-14 04:43:56,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:43:56,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:43:56,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:43:56,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:43:56,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,768 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 152 [2024-11-14 04:43:56,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:43:56,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:43:56,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:43:56,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:43:56,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:43:56,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:43:56,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:43:56,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:43:56,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (1/1) ... [2024-11-14 04:43:56,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:43:56,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:43:56,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:43:56,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:43:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:43:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:43:56,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:43:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:43:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 04:43:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 04:43:56,967 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:43:56,970 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:43:57,773 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-14 04:43:57,774 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:43:57,826 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:43:57,827 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:43:57,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:43:57 BoogieIcfgContainer [2024-11-14 04:43:57,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:43:57,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:43:57,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:43:57,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:43:57,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:43:56" (1/3) ... [2024-11-14 04:43:57,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3672b86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:43:57, skipping insertion in model container [2024-11-14 04:43:57,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:43:56" (2/3) ... [2024-11-14 04:43:57,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3672b86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:43:57, skipping insertion in model container [2024-11-14 04:43:57,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:43:57" (3/3) ... [2024-11-14 04:43:57,841 INFO L112 eAbstractionObserver]: Analyzing ICFG ps6-ll_unwindbound100.c [2024-11-14 04:43:57,856 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:43:57,858 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG ps6-ll_unwindbound100.c that has 2 procedures, 219 locations, 1 initial locations, 1 loop locations, and 104 error locations. [2024-11-14 04:43:57,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:43:57,957 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;@4b8ece8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:43:57,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-11-14 04:43:57,967 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 110 states have (on average 1.9727272727272727) internal successors, (217), 214 states have internal predecessors, (217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:43:57,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 04:43:57,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:57,974 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 04:43:57,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:43:57,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:57,980 INFO L85 PathProgramCache]: Analyzing trace with hash 289678, now seen corresponding path program 1 times [2024-11-14 04:43:57,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:57,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399758320] [2024-11-14 04:43:57,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:57,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:58,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:43:58,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:58,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399758320] [2024-11-14 04:43:58,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399758320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:58,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:43:58,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:43:58,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592525917] [2024-11-14 04:43:58,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:58,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:43:58,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:58,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:43:58,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:43:58,222 INFO L87 Difference]: Start difference. First operand has 219 states, 110 states have (on average 1.9727272727272727) internal successors, (217), 214 states have internal predecessors, (217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:43:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:58,321 INFO L93 Difference]: Finished difference Result 305 states and 321 transitions. [2024-11-14 04:43:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:43:58,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 04:43:58,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:58,331 INFO L225 Difference]: With dead ends: 305 [2024-11-14 04:43:58,331 INFO L226 Difference]: Without dead ends: 190 [2024-11-14 04:43:58,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:43:58,338 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 196 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:58,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 374 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:43:58,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-14 04:43:58,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-14 04:43:58,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 109 states have (on average 1.724770642201835) internal successors, (188), 186 states have internal predecessors, (188), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:43:58,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 192 transitions. [2024-11-14 04:43:58,387 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 192 transitions. Word has length 3 [2024-11-14 04:43:58,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:58,387 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 192 transitions. [2024-11-14 04:43:58,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:43:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 192 transitions. [2024-11-14 04:43:58,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:43:58,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:58,388 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:43:58,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:43:58,389 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:43:58,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:58,390 INFO L85 PathProgramCache]: Analyzing trace with hash 8980065, now seen corresponding path program 1 times [2024-11-14 04:43:58,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:58,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801574275] [2024-11-14 04:43:58,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:58,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:58,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:43:58,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:58,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801574275] [2024-11-14 04:43:58,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801574275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:58,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:43:58,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:43:58,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184256926] [2024-11-14 04:43:58,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:58,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:43:58,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:58,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:43:58,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:43:58,474 INFO L87 Difference]: Start difference. First operand 190 states and 192 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:43:58,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:58,555 INFO L93 Difference]: Finished difference Result 278 states and 280 transitions. [2024-11-14 04:43:58,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:43:58,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 04:43:58,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:58,559 INFO L225 Difference]: With dead ends: 278 [2024-11-14 04:43:58,559 INFO L226 Difference]: Without dead ends: 194 [2024-11-14 04:43:58,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:43:58,563 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 3 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:58,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 557 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:43:58,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-14 04:43:58,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-14 04:43:58,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 113 states have (on average 1.6991150442477876) internal successors, (192), 190 states have internal predecessors, (192), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:43:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 196 transitions. [2024-11-14 04:43:58,587 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 196 transitions. Word has length 4 [2024-11-14 04:43:58,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:58,590 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 196 transitions. [2024-11-14 04:43:58,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:43:58,590 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 196 transitions. [2024-11-14 04:43:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 04:43:58,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:58,591 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 04:43:58,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:43:58,591 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:43:58,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:58,592 INFO L85 PathProgramCache]: Analyzing trace with hash 39909539, now seen corresponding path program 1 times [2024-11-14 04:43:58,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:58,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542687812] [2024-11-14 04:43:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:58,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:58,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:43:58,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:58,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542687812] [2024-11-14 04:43:58,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542687812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:58,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:43:58,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 04:43:58,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040216575] [2024-11-14 04:43:58,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:58,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:43:58,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:58,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:43:58,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:43:58,674 INFO L87 Difference]: Start difference. First operand 194 states and 196 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:43:59,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:59,295 INFO L93 Difference]: Finished difference Result 354 states and 362 transitions. [2024-11-14 04:43:59,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:43:59,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 04:43:59,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:59,298 INFO L225 Difference]: With dead ends: 354 [2024-11-14 04:43:59,298 INFO L226 Difference]: Without dead ends: 290 [2024-11-14 04:43:59,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:43:59,299 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 98 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:59,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 125 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:43:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-14 04:43:59,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 284. [2024-11-14 04:43:59,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 202 states have (on average 1.4405940594059405) internal successors, (291), 279 states have internal predecessors, (291), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:43:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 297 transitions. [2024-11-14 04:43:59,325 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 297 transitions. Word has length 6 [2024-11-14 04:43:59,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:59,325 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 297 transitions. [2024-11-14 04:43:59,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:43:59,326 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 297 transitions. [2024-11-14 04:43:59,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 04:43:59,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:59,327 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:59,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:43:59,327 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:43:59,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:59,328 INFO L85 PathProgramCache]: Analyzing trace with hash 613483401, now seen corresponding path program 1 times [2024-11-14 04:43:59,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:59,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142381748] [2024-11-14 04:43:59,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:59,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:59,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:43:59,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:59,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142381748] [2024-11-14 04:43:59,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142381748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:59,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:43:59,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 04:43:59,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831478022] [2024-11-14 04:43:59,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:59,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:43:59,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:59,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:43:59,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:43:59,537 INFO L87 Difference]: Start difference. First operand 284 states and 297 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:43:59,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:59,640 INFO L93 Difference]: Finished difference Result 308 states and 315 transitions. [2024-11-14 04:43:59,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:43:59,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-14 04:43:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:59,642 INFO L225 Difference]: With dead ends: 308 [2024-11-14 04:43:59,643 INFO L226 Difference]: Without dead ends: 301 [2024-11-14 04:43:59,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:43:59,646 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 68 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:59,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 347 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:43:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-14 04:43:59,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 283. [2024-11-14 04:43:59,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 201 states have (on average 1.4129353233830846) internal successors, (284), 278 states have internal predecessors, (284), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:43:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 290 transitions. [2024-11-14 04:43:59,663 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 290 transitions. Word has length 44 [2024-11-14 04:43:59,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:59,664 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 290 transitions. [2024-11-14 04:43:59,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:43:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 290 transitions. [2024-11-14 04:43:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 04:43:59,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:59,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:59,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:43:59,666 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:43:59,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1147033035, now seen corresponding path program 1 times [2024-11-14 04:43:59,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:59,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564572460] [2024-11-14 04:43:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:59,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:43:59,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:59,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564572460] [2024-11-14 04:43:59,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564572460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:59,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:43:59,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:43:59,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537375721] [2024-11-14 04:43:59,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:59,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:43:59,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:59,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:43:59,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:43:59,850 INFO L87 Difference]: Start difference. First operand 283 states and 290 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:44:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:00,639 INFO L93 Difference]: Finished difference Result 303 states and 308 transitions. [2024-11-14 04:44:00,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:44:00,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-14 04:44:00,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:00,641 INFO L225 Difference]: With dead ends: 303 [2024-11-14 04:44:00,641 INFO L226 Difference]: Without dead ends: 260 [2024-11-14 04:44:00,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:44:00,642 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 105 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:00,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 288 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:44:00,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-14 04:44:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 242. [2024-11-14 04:44:00,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 160 states have (on average 1.50625) internal successors, (241), 237 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:44:00,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 247 transitions. [2024-11-14 04:44:00,654 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 247 transitions. Word has length 46 [2024-11-14 04:44:00,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:00,654 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 247 transitions. [2024-11-14 04:44:00,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:44:00,654 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 247 transitions. [2024-11-14 04:44:00,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 04:44:00,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:00,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:00,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:44:00,656 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:00,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:00,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1650195189, now seen corresponding path program 1 times [2024-11-14 04:44:00,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:00,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192809251] [2024-11-14 04:44:00,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:00,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:00,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:00,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:00,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192809251] [2024-11-14 04:44:00,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192809251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:00,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:00,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:44:00,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640897328] [2024-11-14 04:44:00,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:00,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:44:00,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:00,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:44:00,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:00,765 INFO L87 Difference]: Start difference. First operand 242 states and 247 transitions. Second operand has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:00,803 INFO L93 Difference]: Finished difference Result 244 states and 247 transitions. [2024-11-14 04:44:00,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:44:00,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2024-11-14 04:44:00,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:00,805 INFO L225 Difference]: With dead ends: 244 [2024-11-14 04:44:00,808 INFO L226 Difference]: Without dead ends: 242 [2024-11-14 04:44:00,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:00,809 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:00,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 371 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:44:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-14 04:44:00,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-14 04:44:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 160 states have (on average 1.49375) internal successors, (239), 237 states have internal predecessors, (239), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:44:00,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 245 transitions. [2024-11-14 04:44:00,828 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 245 transitions. Word has length 52 [2024-11-14 04:44:00,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:00,829 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 245 transitions. [2024-11-14 04:44:00,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.0) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:00,830 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 245 transitions. [2024-11-14 04:44:00,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 04:44:00,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:00,833 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:00,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:44:00,834 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:00,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:00,834 INFO L85 PathProgramCache]: Analyzing trace with hash 611486401, now seen corresponding path program 1 times [2024-11-14 04:44:00,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:00,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804619524] [2024-11-14 04:44:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:00,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:44:00,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628781521] [2024-11-14 04:44:00,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:00,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:00,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:00,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:00,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:44:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:00,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:44:00,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:01,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:44:01,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:01,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804619524] [2024-11-14 04:44:01,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:44:01,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628781521] [2024-11-14 04:44:01,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628781521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:01,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:01,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:44:01,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637444112] [2024-11-14 04:44:01,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:01,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:44:01,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:01,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:44:01,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:44:01,127 INFO L87 Difference]: Start difference. First operand 242 states and 245 transitions. Second operand has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:01,727 INFO L93 Difference]: Finished difference Result 421 states and 435 transitions. [2024-11-14 04:44:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:44:01,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2024-11-14 04:44:01,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:01,729 INFO L225 Difference]: With dead ends: 421 [2024-11-14 04:44:01,729 INFO L226 Difference]: Without dead ends: 356 [2024-11-14 04:44:01,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:44:01,731 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 113 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:01,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 145 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:44:01,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-14 04:44:01,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 349. [2024-11-14 04:44:01,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 265 states have (on average 1.3584905660377358) internal successors, (360), 342 states have internal predecessors, (360), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 04:44:01,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 370 transitions. [2024-11-14 04:44:01,747 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 370 transitions. Word has length 57 [2024-11-14 04:44:01,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:01,747 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 370 transitions. [2024-11-14 04:44:01,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:01,747 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 370 transitions. [2024-11-14 04:44:01,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:44:01,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:01,750 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:01,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:44:01,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:01,951 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:01,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:01,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1564846337, now seen corresponding path program 1 times [2024-11-14 04:44:01,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:01,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139209366] [2024-11-14 04:44:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:01,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:02,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:02,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139209366] [2024-11-14 04:44:02,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139209366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:02,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:02,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:44:02,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957695178] [2024-11-14 04:44:02,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:02,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:44:02,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:02,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:44:02,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:44:02,087 INFO L87 Difference]: Start difference. First operand 349 states and 370 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:02,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:02,542 INFO L93 Difference]: Finished difference Result 350 states and 370 transitions. [2024-11-14 04:44:02,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:44:02,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-11-14 04:44:02,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:02,545 INFO L225 Difference]: With dead ends: 350 [2024-11-14 04:44:02,546 INFO L226 Difference]: Without dead ends: 349 [2024-11-14 04:44:02,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:44:02,548 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 57 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:02,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 321 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:44:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-14 04:44:02,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-14 04:44:02,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 265 states have (on average 1.3547169811320754) internal successors, (359), 342 states have internal predecessors, (359), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 04:44:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 369 transitions. [2024-11-14 04:44:02,566 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 369 transitions. Word has length 64 [2024-11-14 04:44:02,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:02,567 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 369 transitions. [2024-11-14 04:44:02,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:02,568 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 369 transitions. [2024-11-14 04:44:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 04:44:02,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:02,570 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:02,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 04:44:02,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:02,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:02,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1265596361, now seen corresponding path program 1 times [2024-11-14 04:44:02,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:02,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489418539] [2024-11-14 04:44:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:02,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:02,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:02,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:02,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489418539] [2024-11-14 04:44:02,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489418539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:02,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:02,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:44:02,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198652970] [2024-11-14 04:44:02,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:02,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:44:02,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:02,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:44:02,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:44:02,724 INFO L87 Difference]: Start difference. First operand 349 states and 369 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:02,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:02,871 INFO L93 Difference]: Finished difference Result 350 states and 369 transitions. [2024-11-14 04:44:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:44:02,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2024-11-14 04:44:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:02,873 INFO L225 Difference]: With dead ends: 350 [2024-11-14 04:44:02,873 INFO L226 Difference]: Without dead ends: 349 [2024-11-14 04:44:02,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:44:02,875 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 50 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:02,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 314 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:44:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-14 04:44:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-14 04:44:02,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 265 states have (on average 1.350943396226415) internal successors, (358), 342 states have internal predecessors, (358), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 04:44:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 368 transitions. [2024-11-14 04:44:02,889 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 368 transitions. Word has length 65 [2024-11-14 04:44:02,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:02,889 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 368 transitions. [2024-11-14 04:44:02,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:02,889 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 368 transitions. [2024-11-14 04:44:02,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 04:44:02,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:02,892 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:02,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 04:44:02,893 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:02,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:02,893 INFO L85 PathProgramCache]: Analyzing trace with hash -2136658268, now seen corresponding path program 1 times [2024-11-14 04:44:02,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:02,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586527981] [2024-11-14 04:44:02,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:02,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:03,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:03,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586527981] [2024-11-14 04:44:03,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586527981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:03,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798401751] [2024-11-14 04:44:03,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:03,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:03,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:03,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:03,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:44:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:03,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:44:03,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:03,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:03,276 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:44:03,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798401751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:03,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:44:03,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-14 04:44:03,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435481296] [2024-11-14 04:44:03,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:03,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:44:03,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:03,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:44:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:44:03,278 INFO L87 Difference]: Start difference. First operand 349 states and 368 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:03,347 INFO L93 Difference]: Finished difference Result 477 states and 501 transitions. [2024-11-14 04:44:03,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:44:03,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2024-11-14 04:44:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:03,350 INFO L225 Difference]: With dead ends: 477 [2024-11-14 04:44:03,350 INFO L226 Difference]: Without dead ends: 476 [2024-11-14 04:44:03,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:44:03,351 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 129 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:03,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 872 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:44:03,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-14 04:44:03,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 436. [2024-11-14 04:44:03,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 350 states have (on average 1.36) internal successors, (476), 428 states have internal predecessors, (476), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:44:03,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 490 transitions. [2024-11-14 04:44:03,369 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 490 transitions. Word has length 68 [2024-11-14 04:44:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:03,369 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 490 transitions. [2024-11-14 04:44:03,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 490 transitions. [2024-11-14 04:44:03,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 04:44:03,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:03,371 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:03,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 04:44:03,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 04:44:03,571 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr96ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:03,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:03,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1708167129, now seen corresponding path program 1 times [2024-11-14 04:44:03,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:03,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92780184] [2024-11-14 04:44:03,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:03,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:03,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:03,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:03,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92780184] [2024-11-14 04:44:03,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92780184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:03,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638042070] [2024-11-14 04:44:03,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:03,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:03,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:03,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:03,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:44:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:03,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:44:03,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:03,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:04,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638042070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:04,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2091545875] [2024-11-14 04:44:04,158 INFO L159 IcfgInterpreter]: Started Sifa with 105 locations of interest [2024-11-14 04:44:04,158 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:04,162 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:04,167 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:04,167 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:09,676 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 04:44:09,705 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:44:22,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2091545875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:22,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:44:22,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [6, 5, 6] total 31 [2024-11-14 04:44:22,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889978292] [2024-11-14 04:44:22,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:22,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:44:22,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:22,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:44:22,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=791, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:44:22,067 INFO L87 Difference]: Start difference. First operand 436 states and 490 transitions. Second operand has 23 states, 21 states have (on average 4.904761904761905) internal successors, (103), 20 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:27,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:44:28,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:28,582 INFO L93 Difference]: Finished difference Result 478 states and 501 transitions. [2024-11-14 04:44:28,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 04:44:28,582 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 4.904761904761905) internal successors, (103), 20 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2024-11-14 04:44:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:28,584 INFO L225 Difference]: With dead ends: 478 [2024-11-14 04:44:28,584 INFO L226 Difference]: Without dead ends: 332 [2024-11-14 04:44:28,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 221 SyntacticMatches, 78 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1533 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=315, Invalid=1407, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 04:44:28,585 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 422 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 110 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:28,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 75 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1700 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-11-14 04:44:28,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-14 04:44:28,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 327. [2024-11-14 04:44:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 285 states have (on average 1.1473684210526316) internal successors, (327), 319 states have internal predecessors, (327), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 04:44:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 337 transitions. [2024-11-14 04:44:28,601 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 337 transitions. Word has length 108 [2024-11-14 04:44:28,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:28,601 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 337 transitions. [2024-11-14 04:44:28,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 4.904761904761905) internal successors, (103), 20 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 04:44:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 337 transitions. [2024-11-14 04:44:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-14 04:44:28,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:28,603 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:28,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:44:28,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:28,808 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr96ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:28,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1111063263, now seen corresponding path program 1 times [2024-11-14 04:44:28,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:28,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748628660] [2024-11-14 04:44:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:28,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:28,941 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-14 04:44:28,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:28,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748628660] [2024-11-14 04:44:28,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748628660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:28,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:28,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:44:28,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605787084] [2024-11-14 04:44:28,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:28,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:44:28,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:28,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:44:28,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:28,944 INFO L87 Difference]: Start difference. First operand 327 states and 337 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:44:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:28,981 INFO L93 Difference]: Finished difference Result 328 states and 337 transitions. [2024-11-14 04:44:28,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:44:28,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 154 [2024-11-14 04:44:28,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:28,983 INFO L225 Difference]: With dead ends: 328 [2024-11-14 04:44:28,984 INFO L226 Difference]: Without dead ends: 327 [2024-11-14 04:44:28,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:28,985 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 93 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:28,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 203 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:44:28,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-14 04:44:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 326. [2024-11-14 04:44:28,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 285 states have (on average 1.1403508771929824) internal successors, (325), 318 states have internal predecessors, (325), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 04:44:28,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 335 transitions. [2024-11-14 04:44:29,000 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 335 transitions. Word has length 154 [2024-11-14 04:44:29,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:29,001 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 335 transitions. [2024-11-14 04:44:29,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:44:29,002 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 335 transitions. [2024-11-14 04:44:29,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-14 04:44:29,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:29,005 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:29,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 04:44:29,005 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr97ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:29,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:29,006 INFO L85 PathProgramCache]: Analyzing trace with hash 83223038, now seen corresponding path program 1 times [2024-11-14 04:44:29,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:29,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113958630] [2024-11-14 04:44:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:29,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 04:44:29,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:29,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113958630] [2024-11-14 04:44:29,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113958630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:29,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:29,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:44:29,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454662986] [2024-11-14 04:44:29,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:29,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:44:29,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:29,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:44:29,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:29,108 INFO L87 Difference]: Start difference. First operand 326 states and 335 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:44:29,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:29,146 INFO L93 Difference]: Finished difference Result 327 states and 335 transitions. [2024-11-14 04:44:29,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:44:29,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 155 [2024-11-14 04:44:29,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:29,149 INFO L225 Difference]: With dead ends: 327 [2024-11-14 04:44:29,149 INFO L226 Difference]: Without dead ends: 325 [2024-11-14 04:44:29,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:29,150 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 93 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:29,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 203 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:44:29,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-14 04:44:29,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 324. [2024-11-14 04:44:29,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 285 states have (on average 1.1263157894736842) internal successors, (321), 316 states have internal predecessors, (321), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 04:44:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 331 transitions. [2024-11-14 04:44:29,166 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 331 transitions. Word has length 155 [2024-11-14 04:44:29,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:29,167 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 331 transitions. [2024-11-14 04:44:29,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:44:29,168 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 331 transitions. [2024-11-14 04:44:29,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 04:44:29,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:29,170 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:44:29,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 04:44:29,170 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:29,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:29,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1017436250, now seen corresponding path program 1 times [2024-11-14 04:44:29,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:29,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964592699] [2024-11-14 04:44:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:29,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:44:29,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:29,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964592699] [2024-11-14 04:44:29,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964592699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:44:29,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649611851] [2024-11-14 04:44:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:29,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:29,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:29,422 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:29,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:44:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:29,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:44:29,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:29,721 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:44:29,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:44:29,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649611851] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:29,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [305294483] [2024-11-14 04:44:29,995 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-14 04:44:29,995 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:29,995 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:29,996 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:29,996 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:33,563 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 04:44:33,579 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:44:57,970 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10958#(and (<= 101 ~counter~0) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_228| Int)) (and (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) (* (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 3))) (= (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|)) (+ (* 5 (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|)) (* (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 2) (* (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 6))) (<= (* |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228| |v_ULTIMATE.start_main_~y~0#1_228|) 4611686018427387904))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 04:44:57,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:44:57,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:44:57,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2024-11-14 04:44:57,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313869125] [2024-11-14 04:44:57,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:44:57,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 04:44:57,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:57,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 04:44:57,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=979, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 04:44:57,973 INFO L87 Difference]: Start difference. First operand 324 states and 331 transitions. Second operand has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-14 04:44:58,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:58,374 INFO L93 Difference]: Finished difference Result 810 states and 814 transitions. [2024-11-14 04:44:58,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 04:44:58,374 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 156 [2024-11-14 04:44:58,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:58,378 INFO L225 Difference]: With dead ends: 810 [2024-11-14 04:44:58,378 INFO L226 Difference]: Without dead ends: 786 [2024-11-14 04:44:58,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 333 SyntacticMatches, 109 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3245 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=297, Invalid=1683, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 04:44:58,379 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 429 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:58,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1174 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:44:58,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-14 04:44:58,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 540. [2024-11-14 04:44:58,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 492 states have (on average 1.0853658536585367) internal successors, (534), 523 states have internal predecessors, (534), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 04:44:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 550 transitions. [2024-11-14 04:44:58,411 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 550 transitions. Word has length 156 [2024-11-14 04:44:58,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:58,411 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 550 transitions. [2024-11-14 04:44:58,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.0) internal successors, (280), 14 states have internal predecessors, (280), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-14 04:44:58,412 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 550 transitions. [2024-11-14 04:44:58,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 04:44:58,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:58,413 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-11-14 04:44:58,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 04:44:58,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:58,614 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:44:58,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:58,614 INFO L85 PathProgramCache]: Analyzing trace with hash -850634753, now seen corresponding path program 1 times [2024-11-14 04:44:58,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:58,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771739752] [2024-11-14 04:44:58,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:58,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:44:58,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540703851] [2024-11-14 04:44:58,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:58,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:44:58,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:44:58,662 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:44:58,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:44:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:58,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:44:58,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:58,973 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:44:58,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:44:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:44:59,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:59,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771739752] [2024-11-14 04:44:59,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:44:59,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540703851] [2024-11-14 04:44:59,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540703851] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:44:59,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [4933785] [2024-11-14 04:44:59,598 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 04:44:59,598 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:44:59,598 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:44:59,598 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:44:59,598 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:45:02,022 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 04:45:02,037 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:45:19,114 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13359#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_237| Int)) (and (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|) (* 3 (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|)))) (<= (* |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237| |v_ULTIMATE.start_main_~y~0#1_237|) 4611686018427387904))) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 04:45:19,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:45:19,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:45:19,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-14 04:45:19,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054117897] [2024-11-14 04:45:19,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:45:19,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:45:19,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:45:19,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:45:19,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2024-11-14 04:45:19,117 INFO L87 Difference]: Start difference. First operand 540 states and 550 transitions. Second operand has 8 states, 7 states have (on average 43.0) internal successors, (301), 8 states have internal predecessors, (301), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 04:45:22,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:45:24,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:45:26,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 04:45:26,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:26,832 INFO L93 Difference]: Finished difference Result 706 states and 808 transitions. [2024-11-14 04:45:26,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:45:26,833 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 43.0) internal successors, (301), 8 states have internal predecessors, (301), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 156 [2024-11-14 04:45:26,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:26,836 INFO L225 Difference]: With dead ends: 706 [2024-11-14 04:45:26,837 INFO L226 Difference]: Without dead ends: 669 [2024-11-14 04:45:26,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 336 SyntacticMatches, 105 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1712 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2024-11-14 04:45:26,838 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 713 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 122 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:26,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 158 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 990 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2024-11-14 04:45:26,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-14 04:45:26,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 487. [2024-11-14 04:45:26,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 468 states have (on average 1.0192307692307692) internal successors, (477), 472 states have internal predecessors, (477), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:45:26,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 491 transitions. [2024-11-14 04:45:26,871 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 491 transitions. Word has length 156 [2024-11-14 04:45:26,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:26,873 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 491 transitions. [2024-11-14 04:45:26,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 43.0) internal successors, (301), 8 states have internal predecessors, (301), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 04:45:26,874 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 491 transitions. [2024-11-14 04:45:26,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 04:45:26,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:26,876 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:45:26,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 04:45:27,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 04:45:27,077 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr98ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:45:27,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:27,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1715052863, now seen corresponding path program 1 times [2024-11-14 04:45:27,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:45:27,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911494811] [2024-11-14 04:45:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:27,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:45:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:27,174 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-14 04:45:27,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:45:27,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911494811] [2024-11-14 04:45:27,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911494811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:27,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:45:27,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:45:27,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384050401] [2024-11-14 04:45:27,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:27,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:45:27,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:45:27,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:45:27,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:45:27,177 INFO L87 Difference]: Start difference. First operand 487 states and 491 transitions. Second operand has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:45:27,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:27,549 INFO L93 Difference]: Finished difference Result 487 states and 491 transitions. [2024-11-14 04:45:27,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:45:27,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 156 [2024-11-14 04:45:27,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:27,552 INFO L225 Difference]: With dead ends: 487 [2024-11-14 04:45:27,552 INFO L226 Difference]: Without dead ends: 486 [2024-11-14 04:45:27,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:45:27,553 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 51 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:27,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 32 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:45:27,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-14 04:45:27,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2024-11-14 04:45:27,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 468 states have (on average 1.017094017094017) internal successors, (476), 471 states have internal predecessors, (476), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:45:27,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 490 transitions. [2024-11-14 04:45:27,579 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 490 transitions. Word has length 156 [2024-11-14 04:45:27,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:27,579 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 490 transitions. [2024-11-14 04:45:27,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 53.5) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:45:27,579 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 490 transitions. [2024-11-14 04:45:27,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-14 04:45:27,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:27,581 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:45:27,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 04:45:27,581 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr100ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:45:27,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:27,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1367853872, now seen corresponding path program 1 times [2024-11-14 04:45:27,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:45:27,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487995619] [2024-11-14 04:45:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:27,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:45:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:45:27,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15076796] [2024-11-14 04:45:27,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:27,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:27,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:45:27,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:45:27,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:45:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:27,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:45:27,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:45:28,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:28,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:45:28,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487995619] [2024-11-14 04:45:28,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:45:28,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15076796] [2024-11-14 04:45:28,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15076796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:45:28,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1817378694] [2024-11-14 04:45:28,508 INFO L159 IcfgInterpreter]: Started Sifa with 110 locations of interest [2024-11-14 04:45:28,509 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:45:28,509 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:45:28,510 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:45:28,510 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:45:31,192 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 126 for LOIs [2024-11-14 04:45:31,259 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:45:41,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1817378694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:41,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:45:41,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [4] total 22 [2024-11-14 04:45:41,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42537536] [2024-11-14 04:45:41,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:41,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 04:45:41,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:45:41,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 04:45:41,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-11-14 04:45:41,918 INFO L87 Difference]: Start difference. First operand 486 states and 490 transitions. Second operand has 20 states, 18 states have (on average 5.944444444444445) internal successors, (107), 17 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:45:55,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:55,906 INFO L93 Difference]: Finished difference Result 486 states and 490 transitions. [2024-11-14 04:45:55,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 04:45:55,906 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.944444444444445) internal successors, (107), 17 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 161 [2024-11-14 04:45:55,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:55,908 INFO L225 Difference]: With dead ends: 486 [2024-11-14 04:45:55,908 INFO L226 Difference]: Without dead ends: 437 [2024-11-14 04:45:55,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 327 SyntacticMatches, 82 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1450 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=386, Invalid=1093, Unknown=3, NotChecked=0, Total=1482 [2024-11-14 04:45:55,909 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 281 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:55,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 3 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-14 04:45:55,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-14 04:45:55,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2024-11-14 04:45:55,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 423 states have (on average 1.0047281323877069) internal successors, (425), 424 states have internal predecessors, (425), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:45:55,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 437 transitions. [2024-11-14 04:45:55,941 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 437 transitions. Word has length 161 [2024-11-14 04:45:55,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:55,941 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 437 transitions. [2024-11-14 04:45:55,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.944444444444445) internal successors, (107), 17 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 04:45:55,941 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 437 transitions. [2024-11-14 04:45:55,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-14 04:45:55,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:55,950 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:45:55,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 04:45:56,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:56,151 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:45:56,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:56,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1120126310, now seen corresponding path program 2 times [2024-11-14 04:45:56,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:45:56,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617801013] [2024-11-14 04:45:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:56,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:45:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:57,090 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:45:57,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:45:57,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617801013] [2024-11-14 04:45:57,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617801013] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:45:57,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249085797] [2024-11-14 04:45:57,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:45:57,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:45:57,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:45:57,093 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:45:57,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:45:57,434 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 04:45:57,435 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:45:57,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:45:57,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:45:58,046 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 0 proven. 984 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:45:58,046 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:45:58,859 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 0 proven. 954 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:45:58,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249085797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:45:58,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [684861676] [2024-11-14 04:45:58,866 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-14 04:45:58,866 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:45:58,866 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:45:58,866 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:45:58,867 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:46:01,784 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 04:46:01,809 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:46:52,700 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20009#(and (<= 101 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_255| Int)) (and (= (+ (* 5 (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|)) (* (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|) 2) (* 6 (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|))) (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|))) (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|) (* 3 (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|)))) (<= (* |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255| |v_ULTIMATE.start_main_~y~0#1_255|) 4611686018427387904))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 04:46:52,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:46:52,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:46:52,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 16] total 30 [2024-11-14 04:46:52,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427606133] [2024-11-14 04:46:52,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:46:52,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-14 04:46:52,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:46:52,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-14 04:46:52,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=2123, Unknown=0, NotChecked=0, Total=2450 [2024-11-14 04:46:52,704 INFO L87 Difference]: Start difference. First operand 437 states and 437 transitions. Second operand has 30 states, 30 states have (on average 25.733333333333334) internal successors, (772), 30 states have internal predecessors, (772), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-11-14 04:46:53,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:46:53,661 INFO L93 Difference]: Finished difference Result 957 states and 964 transitions. [2024-11-14 04:46:53,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-14 04:46:53,662 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 25.733333333333334) internal successors, (772), 30 states have internal predecessors, (772), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) Word has length 412 [2024-11-14 04:46:53,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:46:53,666 INFO L225 Difference]: With dead ends: 957 [2024-11-14 04:46:53,666 INFO L226 Difference]: Without dead ends: 933 [2024-11-14 04:46:53,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1277 GetRequests, 917 SyntacticMatches, 285 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15777 ImplicationChecksByTransitivity, 51.7s TimeCoverageRelationStatistics Valid=1137, Invalid=4715, Unknown=0, NotChecked=0, Total=5852 [2024-11-14 04:46:53,668 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 164 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:46:53,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1619 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:46:53,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2024-11-14 04:46:53,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 926. [2024-11-14 04:46:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 896 states have (on average 1.0100446428571428) internal successors, (905), 897 states have internal predecessors, (905), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 04:46:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 933 transitions. [2024-11-14 04:46:53,728 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 933 transitions. Word has length 412 [2024-11-14 04:46:53,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:46:53,729 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 933 transitions. [2024-11-14 04:46:53,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 25.733333333333334) internal successors, (772), 30 states have internal predecessors, (772), 12 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-11-14 04:46:53,730 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 933 transitions. [2024-11-14 04:46:53,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-14 04:46:53,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:46:53,737 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1] [2024-11-14 04:46:53,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 04:46:53,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 04:46:53,938 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:46:53,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:46:53,939 INFO L85 PathProgramCache]: Analyzing trace with hash -747944693, now seen corresponding path program 2 times [2024-11-14 04:46:53,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:46:53,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524591317] [2024-11-14 04:46:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:53,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:46:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:46:54,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4533285] [2024-11-14 04:46:54,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:46:54,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:54,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:46:54,023 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:46:54,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 04:46:54,339 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 04:46:54,339 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:46:54,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:46:54,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:46:54,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:46:54,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:46:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 04:46:56,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:46:56,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524591317] [2024-11-14 04:46:56,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:46:56,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4533285] [2024-11-14 04:46:56,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4533285] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:46:56,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [175805914] [2024-11-14 04:46:56,362 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 04:46:56,362 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:46:56,363 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:46:56,363 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:46:56,363 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:46:58,574 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 04:46:58,593 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:47:55,333 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24562#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (exists ((|v_ULTIMATE.start_main_~y~0#1_272| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272|) 4611686018427387904) (<= 4611686018427387905 (+ (* (* |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272|) 3) (* |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272| |v_ULTIMATE.start_main_~y~0#1_272|))))) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 04:47:55,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:47:55,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:47:55,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-14 04:47:55,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053650359] [2024-11-14 04:47:55,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:47:55,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 04:47:55,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:47:55,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 04:47:55,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1079, Unknown=1, NotChecked=0, Total=1260 [2024-11-14 04:47:55,337 INFO L87 Difference]: Start difference. First operand 926 states and 933 transitions. Second operand has 16 states, 15 states have (on average 52.6) internal successors, (789), 16 states have internal predecessors, (789), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 04:47:58,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:47:58,770 INFO L93 Difference]: Finished difference Result 950 states and 957 transitions. [2024-11-14 04:47:58,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:47:58,770 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 52.6) internal successors, (789), 16 states have internal predecessors, (789), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 412 [2024-11-14 04:47:58,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:47:58,773 INFO L225 Difference]: With dead ends: 950 [2024-11-14 04:47:58,773 INFO L226 Difference]: Without dead ends: 949 [2024-11-14 04:47:58,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 926 SyntacticMatches, 274 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6142 ImplicationChecksByTransitivity, 57.6s TimeCoverageRelationStatistics Valid=276, Invalid=1445, Unknown=1, NotChecked=0, Total=1722 [2024-11-14 04:47:58,775 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 226 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 3114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:47:58,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 610 Invalid, 3114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-14 04:47:58,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-14 04:47:58,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2024-11-14 04:47:58,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 919 states have (on average 1.002176278563656) internal successors, (921), 920 states have internal predecessors, (921), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 04:47:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 949 transitions. [2024-11-14 04:47:58,840 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 949 transitions. Word has length 412 [2024-11-14 04:47:58,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:47:58,841 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 949 transitions. [2024-11-14 04:47:58,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 52.6) internal successors, (789), 16 states have internal predecessors, (789), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 04:47:58,842 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 949 transitions. [2024-11-14 04:47:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2024-11-14 04:47:58,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:47:58,850 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:47:58,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 04:47:59,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:47:59,051 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:47:59,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:47:59,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1982521474, now seen corresponding path program 3 times [2024-11-14 04:47:59,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:47:59,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727975666] [2024-11-14 04:47:59,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:47:59,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:47:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:48:03,047 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5698 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 04:48:03,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:48:03,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727975666] [2024-11-14 04:48:03,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727975666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:48:03,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025814266] [2024-11-14 04:48:03,048 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:48:03,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:48:03,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:48:03,050 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:48:03,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 04:48:03,306 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:48:03,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:48:03,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 04:48:03,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:48:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:48:04,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:48:06,321 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5698 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 04:48:06,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025814266] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:48:06,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1816686552] [2024-11-14 04:48:06,323 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-14 04:48:06,323 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:48:06,324 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:48:06,324 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:48:06,324 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:48:08,912 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 04:48:08,929 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:50:37,806 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32207#(and (<= 101 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~k~0#1| 256) (exists ((|v_ULTIMATE.start_main_~y~0#1_291| Int)) (and (= (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (+ (* 5 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (* 2 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (* 6 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)))) (<= 4611686018427387905 (+ (* 3 (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|)) (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|))) (<= (* |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291| |v_ULTIMATE.start_main_~y~0#1_291|) 4611686018427387904))))' at error location [2024-11-14 04:50:37,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:50:37,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:50:37,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 32] total 62 [2024-11-14 04:50:37,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101618493] [2024-11-14 04:50:37,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:50:37,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-14 04:50:37,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:50:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-14 04:50:37,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1079, Invalid=5563, Unknown=0, NotChecked=0, Total=6642 [2024-11-14 04:50:37,814 INFO L87 Difference]: Start difference. First operand 949 states and 949 transitions. Second operand has 62 states, 62 states have (on average 28.322580645161292) internal successors, (1756), 62 states have internal predecessors, (1756), 28 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 28 states have call predecessors, (42), 28 states have call successors, (42) [2024-11-14 04:50:40,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:50:40,738 INFO L93 Difference]: Finished difference Result 1989 states and 2004 transitions. [2024-11-14 04:50:40,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-14 04:50:40,739 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 28.322580645161292) internal successors, (1756), 62 states have internal predecessors, (1756), 28 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 28 states have call predecessors, (42), 28 states have call successors, (42) Word has length 924 [2024-11-14 04:50:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:50:40,746 INFO L225 Difference]: With dead ends: 1989 [2024-11-14 04:50:40,746 INFO L226 Difference]: Without dead ends: 1965 [2024-11-14 04:50:40,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2861 GetRequests, 2085 SyntacticMatches, 637 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67619 ImplicationChecksByTransitivity, 152.0s TimeCoverageRelationStatistics Valid=4737, Invalid=15003, Unknown=0, NotChecked=0, Total=19740 [2024-11-14 04:50:40,752 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 428 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:50:40,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2113 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:50:40,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-14 04:50:40,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1950. [2024-11-14 04:50:40,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1950 states, 1888 states have (on average 1.0090042372881356) internal successors, (1905), 1889 states have internal predecessors, (1905), 30 states have call successors, (30), 30 states have call predecessors, (30), 30 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 04:50:40,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 1965 transitions. [2024-11-14 04:50:40,875 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 1965 transitions. Word has length 924 [2024-11-14 04:50:40,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:50:40,876 INFO L471 AbstractCegarLoop]: Abstraction has 1950 states and 1965 transitions. [2024-11-14 04:50:40,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 28.322580645161292) internal successors, (1756), 62 states have internal predecessors, (1756), 28 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 28 states have call predecessors, (42), 28 states have call successors, (42) [2024-11-14 04:50:40,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 1965 transitions. [2024-11-14 04:50:40,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2024-11-14 04:50:40,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:50:40,885 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1] [2024-11-14 04:50:40,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 04:50:41,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:50:41,086 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:50:41,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:50:41,087 INFO L85 PathProgramCache]: Analyzing trace with hash 444374819, now seen corresponding path program 3 times [2024-11-14 04:50:41,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:50:41,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208261845] [2024-11-14 04:50:41,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:50:41,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:50:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:50:41,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135343632] [2024-11-14 04:50:41,274 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:50:41,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:50:41,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:50:41,276 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:50:41,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 04:50:41,535 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:50:41,535 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:50:41,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 04:50:41,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:50:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 6202 backedges. 0 proven. 6020 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 04:50:42,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:50:47,152 INFO L134 CoverageAnalysis]: Checked inductivity of 6202 backedges. 0 proven. 6020 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 04:50:47,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:50:47,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208261845] [2024-11-14 04:50:47,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:50:47,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135343632] [2024-11-14 04:50:47,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135343632] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:50:47,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [925296298] [2024-11-14 04:50:47,155 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 04:50:47,155 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:50:47,155 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:50:47,155 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:50:47,156 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:50:49,368 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 04:50:49,385 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:53:23,839 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42096#(and (exists ((|v_ULTIMATE.start_main_~y~0#1_324| Int)) (and (<= 4611686018427387905 (+ (* |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324|) (* (* |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324|) 3))) (<= (* |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324| |v_ULTIMATE.start_main_~y~0#1_324|) 4611686018427387904))) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 ~counter~0) (<= 0 |ULTIMATE.start_main_~c~0#1|) (<= 0 (+ |ULTIMATE.start_main_~k~0#1| 32768)) (<= |ULTIMATE.start_main_~k~0#1| 256))' at error location [2024-11-14 04:53:23,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:53:23,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:53:23,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2024-11-14 04:53:23,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576301810] [2024-11-14 04:53:23,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:53:23,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-14 04:53:23,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:53:23,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-14 04:53:23,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=2257, Unknown=1, NotChecked=0, Total=2652 [2024-11-14 04:53:23,846 INFO L87 Difference]: Start difference. First operand 1950 states and 1965 transitions. Second operand has 32 states, 31 states have (on average 56.935483870967744) internal successors, (1765), 32 states have internal predecessors, (1765), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-14 04:53:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:53:48,934 INFO L93 Difference]: Finished difference Result 1974 states and 1989 transitions. [2024-11-14 04:53:48,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-14 04:53:48,935 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 56.935483870967744) internal successors, (1765), 32 states have internal predecessors, (1765), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 924 [2024-11-14 04:53:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:53:48,941 INFO L225 Difference]: With dead ends: 1974 [2024-11-14 04:53:48,941 INFO L226 Difference]: Without dead ends: 1973 [2024-11-14 04:53:48,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2784 GetRequests, 2092 SyntacticMatches, 628 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18863 ImplicationChecksByTransitivity, 171.9s TimeCoverageRelationStatistics Valid=842, Invalid=3447, Unknown=1, NotChecked=0, Total=4290 [2024-11-14 04:53:48,943 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 394 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 12927 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 12943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 12927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:53:48,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 2450 Invalid, 12943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 12927 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-14 04:53:48,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-11-14 04:53:49,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1973. [2024-11-14 04:53:49,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1911 states have (on average 1.0010465724751438) internal successors, (1913), 1912 states have internal predecessors, (1913), 30 states have call successors, (30), 30 states have call predecessors, (30), 30 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 04:53:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 1973 transitions. [2024-11-14 04:53:49,063 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 1973 transitions. Word has length 924 [2024-11-14 04:53:49,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:53:49,065 INFO L471 AbstractCegarLoop]: Abstraction has 1973 states and 1973 transitions. [2024-11-14 04:53:49,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 56.935483870967744) internal successors, (1765), 32 states have internal predecessors, (1765), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-14 04:53:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 1973 transitions. [2024-11-14 04:53:49,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1949 [2024-11-14 04:53:49,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:53:49,093 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:53:49,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 04:53:49,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-14 04:53:49,293 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 101 more)] === [2024-11-14 04:53:49,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:53:49,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1128649646, now seen corresponding path program 4 times [2024-11-14 04:53:49,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:53:49,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405384862] [2024-11-14 04:53:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:53:49,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:53:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:54:01,485 INFO L134 CoverageAnalysis]: Checked inductivity of 27960 backedges. 0 proven. 27090 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-14 04:54:01,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:54:01,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405384862] [2024-11-14 04:54:01,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405384862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:54:01,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905347264] [2024-11-14 04:54:01,486 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:54:01,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:54:01,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:54:01,488 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:54:01,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_801655da-d3f7-4ab5-91ff-5719c8c0ed3e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 04:54:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:54:01,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 2342 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-14 04:54:01,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:54:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 27960 backedges. 0 proven. 27960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:54:04,264 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:54:10,568 INFO L134 CoverageAnalysis]: Checked inductivity of 27960 backedges. 0 proven. 27090 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-14 04:54:10,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905347264] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:54:10,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [590546516] [2024-11-14 04:54:10,571 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-14 04:54:10,572 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:54:10,572 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:54:10,572 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:54:10,572 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:54:13,197 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 74 for LOIs [2024-11-14 04:54:13,212 INFO L180 IcfgInterpreter]: Interpretation finished