./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-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_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/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_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/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_7fce3ae8-1998-4327-805d-83dd596a128e/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 7cdbf1a1c8f20bea42ab4ad35fbada62352deeb8460cfeb3778e870071fb234e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:29:01,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:29:01,178 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:29:01,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:29:01,185 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:29:01,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:29:01,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:29:01,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:29:01,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:29:01,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:29:01,224 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:29:01,224 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:29:01,224 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:29:01,224 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:29:01,225 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:29:01,225 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:29:01,225 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:29:01,225 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:29:01,225 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:29:01,225 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:29:01,225 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:29:01,225 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:29:01,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:29:01,226 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:29:01,227 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:29:01,227 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:29:01,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:29:01,227 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:29:01,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:29:01,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:29:01,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:29:01,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:29:01,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:29:01,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:29:01,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:29:01,229 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:29:01,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:29:01,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:29:01,229 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:29:01,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:29:01,229 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_7fce3ae8-1998-4327-805d-83dd596a128e/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 -> 7cdbf1a1c8f20bea42ab4ad35fbada62352deeb8460cfeb3778e870071fb234e [2024-11-14 03:29:01,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:29:01,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:29:01,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:29:01,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:29:01,580 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:29:01,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c Unable to find full path for "g++" [2024-11-14 03:29:03,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:29:03,739 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:29:03,740 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound100.c [2024-11-14 03:29:03,751 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/data/8dcb99b4f/942f3647afc94382aa359aceacabda53/FLAG72666c13e [2024-11-14 03:29:03,775 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/data/8dcb99b4f/942f3647afc94382aa359aceacabda53 [2024-11-14 03:29:03,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:29:03,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:29:03,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:29:03,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:29:03,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:29:03,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:29:03" (1/1) ... [2024-11-14 03:29:03,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eba54c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:03, skipping insertion in model container [2024-11-14 03:29:03,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:29:03" (1/1) ... [2024-11-14 03:29:03,813 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:29:04,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:29:04,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:29:04,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:29:04,075 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:29:04,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04 WrapperNode [2024-11-14 03:29:04,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:29:04,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:29:04,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:29:04,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:29:04,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,131 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2024-11-14 03:29:04,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:29:04,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:29:04,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:29:04,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:29:04,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:29:04,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:29:04,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:29:04,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:29:04,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (1/1) ... [2024-11-14 03:29:04,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:29:04,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:04,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:29:04,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:29:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:29:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:29:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:29:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:29:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:29:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:29:04,333 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:29:04,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:29:04,760 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-14 03:29:04,760 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:29:04,834 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:29:04,834 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 03:29:04,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:29:04 BoogieIcfgContainer [2024-11-14 03:29:04,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:29:04,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:29:04,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:29:04,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:29:04,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:29:03" (1/3) ... [2024-11-14 03:29:04,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19579121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:29:04, skipping insertion in model container [2024-11-14 03:29:04,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:04" (2/3) ... [2024-11-14 03:29:04,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19579121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:29:04, skipping insertion in model container [2024-11-14 03:29:04,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:29:04" (3/3) ... [2024-11-14 03:29:04,850 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound100.c [2024-11-14 03:29:04,868 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:29:04,870 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cohendiv-ll_unwindbound100.c that has 2 procedures, 86 locations, 1 initial locations, 2 loop locations, and 34 error locations. [2024-11-14 03:29:04,953 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:29:04,972 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;@54a4a6c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:29:04,972 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-14 03:29:04,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 43 states have (on average 1.930232558139535) internal successors, (83), 77 states have internal predecessors, (83), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 03:29:04,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:29:04,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:04,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:29:04,986 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:04,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:04,992 INFO L85 PathProgramCache]: Analyzing trace with hash 186048, now seen corresponding path program 1 times [2024-11-14 03:29:05,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:05,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607616066] [2024-11-14 03:29:05,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:05,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:05,175 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 03:29:05,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:05,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607616066] [2024-11-14 03:29:05,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607616066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:05,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:05,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:29:05,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363269168] [2024-11-14 03:29:05,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:05,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:29:05,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:05,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:29:05,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:29:05,215 INFO L87 Difference]: Start difference. First operand has 86 states, 43 states have (on average 1.930232558139535) internal successors, (83), 77 states have internal predecessors, (83), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 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 03:29:05,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:05,280 INFO L93 Difference]: Finished difference Result 171 states and 193 transitions. [2024-11-14 03:29:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:29:05,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 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 03:29:05,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:05,292 INFO L225 Difference]: With dead ends: 171 [2024-11-14 03:29:05,293 INFO L226 Difference]: Without dead ends: 83 [2024-11-14 03:29:05,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:29:05,304 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:05,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:29:05,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-14 03:29:05,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-14 03:29:05,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 42 states have (on average 1.880952380952381) internal successors, (79), 75 states have internal predecessors, (79), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:29:05,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2024-11-14 03:29:05,355 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 3 [2024-11-14 03:29:05,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:05,356 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2024-11-14 03:29:05,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 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 03:29:05,356 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2024-11-14 03:29:05,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:29:05,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:05,357 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:29:05,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:29:05,358 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:05,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:05,358 INFO L85 PathProgramCache]: Analyzing trace with hash 183007, now seen corresponding path program 1 times [2024-11-14 03:29:05,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:05,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069852847] [2024-11-14 03:29:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:05,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:05,493 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 03:29:05,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:05,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069852847] [2024-11-14 03:29:05,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069852847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:05,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:05,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:29:05,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833130974] [2024-11-14 03:29:05,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:05,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:29:05,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:05,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:29:05,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:29:05,497 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. 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 03:29:05,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:05,601 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2024-11-14 03:29:05,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:29:05,602 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 03:29:05,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:05,603 INFO L225 Difference]: With dead ends: 97 [2024-11-14 03:29:05,603 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 03:29:05,604 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 03:29:05,605 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 4 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:05,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 251 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:29:05,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 03:29:05,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-14 03:29:05,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.8043478260869565) internal successors, (83), 79 states have internal predecessors, (83), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:29:05,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2024-11-14 03:29:05,615 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 3 [2024-11-14 03:29:05,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:05,615 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2024-11-14 03:29:05,615 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 03:29:05,615 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2024-11-14 03:29:05,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:29:05,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:05,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 03:29:05,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:29:05,616 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:05,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:05,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1157041074, now seen corresponding path program 1 times [2024-11-14 03:29:05,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:05,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675442306] [2024-11-14 03:29:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:05,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:29:05,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605217421] [2024-11-14 03:29:05,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:05,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:05,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:05,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:05,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:29:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:05,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:29:05,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:05,719 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 03:29:05,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:05,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:05,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675442306] [2024-11-14 03:29:05,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:29:05,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605217421] [2024-11-14 03:29:05,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605217421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:05,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:05,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:29:05,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875348008] [2024-11-14 03:29:05,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:05,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:29:05,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:05,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:29:05,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:05,722 INFO L87 Difference]: Start difference. First operand 87 states and 95 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 03:29:05,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:05,911 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2024-11-14 03:29:05,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:29:05,912 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 03:29:05,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:05,913 INFO L225 Difference]: With dead ends: 110 [2024-11-14 03:29:05,913 INFO L226 Difference]: Without dead ends: 108 [2024-11-14 03:29:05,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:05,915 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 18 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:05,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 155 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:29:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-14 03:29:05,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 89. [2024-11-14 03:29:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 48 states have (on average 1.7708333333333333) internal successors, (85), 81 states have internal predecessors, (85), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:29:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2024-11-14 03:29:05,926 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 6 [2024-11-14 03:29:05,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:05,926 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2024-11-14 03:29:05,926 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 03:29:05,926 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2024-11-14 03:29:05,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:29:05,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:05,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:05,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:29:06,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:06,135 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:06,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash 903440272, now seen corresponding path program 1 times [2024-11-14 03:29:06,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:06,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613526544] [2024-11-14 03:29:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:29:06,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966575647] [2024-11-14 03:29:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:06,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:06,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:06,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:06,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:29:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:06,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:29:06,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:06,320 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 03:29:06,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:06,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:06,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613526544] [2024-11-14 03:29:06,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:29:06,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966575647] [2024-11-14 03:29:06,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966575647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:06,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:06,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:29:06,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95272359] [2024-11-14 03:29:06,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:06,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:29:06,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:06,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:29:06,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:06,327 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 03:29:06,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:06,609 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2024-11-14 03:29:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:29:06,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 11 [2024-11-14 03:29:06,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:06,614 INFO L225 Difference]: With dead ends: 151 [2024-11-14 03:29:06,614 INFO L226 Difference]: Without dead ends: 145 [2024-11-14 03:29:06,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:06,615 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 51 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:06,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 130 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:29:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-14 03:29:06,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 123. [2024-11-14 03:29:06,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 76 states have (on average 1.763157894736842) internal successors, (134), 109 states have internal predecessors, (134), 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 03:29:06,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 158 transitions. [2024-11-14 03:29:06,646 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 158 transitions. Word has length 11 [2024-11-14 03:29:06,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:06,647 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 158 transitions. [2024-11-14 03:29:06,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 03:29:06,647 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 158 transitions. [2024-11-14 03:29:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 03:29:06,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:06,651 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:06,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:29:06,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:06,852 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:06,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:06,852 INFO L85 PathProgramCache]: Analyzing trace with hash 622709554, now seen corresponding path program 1 times [2024-11-14 03:29:06,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:06,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499937222] [2024-11-14 03:29:06,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:06,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:29:06,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1101886383] [2024-11-14 03:29:06,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:06,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:06,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:06,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:06,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:29:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:06,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:29:06,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:07,092 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 03:29:07,093 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:07,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:07,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499937222] [2024-11-14 03:29:07,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:29:07,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101886383] [2024-11-14 03:29:07,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101886383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:07,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:07,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:29:07,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434918258] [2024-11-14 03:29:07,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:07,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:29:07,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:07,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:29:07,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:07,095 INFO L87 Difference]: Start difference. First operand 123 states and 158 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 03:29:07,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:07,312 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2024-11-14 03:29:07,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:29:07,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 13 [2024-11-14 03:29:07,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:07,314 INFO L225 Difference]: With dead ends: 144 [2024-11-14 03:29:07,315 INFO L226 Difference]: Without dead ends: 141 [2024-11-14 03:29:07,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:07,316 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 45 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:07,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 121 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:29:07,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-14 03:29:07,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 124. [2024-11-14 03:29:07,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 77 states have (on average 1.7272727272727273) internal successors, (133), 110 states have internal predecessors, (133), 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 03:29:07,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 157 transitions. [2024-11-14 03:29:07,333 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 157 transitions. Word has length 13 [2024-11-14 03:29:07,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:07,334 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 157 transitions. [2024-11-14 03:29:07,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 03:29:07,334 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 157 transitions. [2024-11-14 03:29:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 03:29:07,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:07,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:07,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:29:07,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:07,535 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:07,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:07,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2124127055, now seen corresponding path program 1 times [2024-11-14 03:29:07,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:07,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664280215] [2024-11-14 03:29:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:07,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:29:07,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [971209506] [2024-11-14 03:29:07,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:07,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:07,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:07,561 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:07,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:29:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:07,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:29:07,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:07,711 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 03:29:07,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:07,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:07,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664280215] [2024-11-14 03:29:07,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:29:07,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971209506] [2024-11-14 03:29:07,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971209506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:07,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:07,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:29:07,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986303375] [2024-11-14 03:29:07,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:07,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:29:07,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:07,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:29:07,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:07,714 INFO L87 Difference]: Start difference. First operand 124 states and 157 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 03:29:08,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:08,012 INFO L93 Difference]: Finished difference Result 144 states and 162 transitions. [2024-11-14 03:29:08,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:29:08,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14 [2024-11-14 03:29:08,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:08,014 INFO L225 Difference]: With dead ends: 144 [2024-11-14 03:29:08,014 INFO L226 Difference]: Without dead ends: 137 [2024-11-14 03:29:08,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:08,015 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 44 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:08,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 124 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:29:08,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-14 03:29:08,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 121. [2024-11-14 03:29:08,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 74 states have (on average 1.7162162162162162) internal successors, (127), 107 states have internal predecessors, (127), 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 03:29:08,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 151 transitions. [2024-11-14 03:29:08,025 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 151 transitions. Word has length 14 [2024-11-14 03:29:08,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:08,025 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 151 transitions. [2024-11-14 03:29:08,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 03:29:08,026 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 151 transitions. [2024-11-14 03:29:08,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 03:29:08,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:08,026 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:08,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:29:08,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:08,230 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:08,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:08,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1093961277, now seen corresponding path program 1 times [2024-11-14 03:29:08,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:08,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900155133] [2024-11-14 03:29:08,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:08,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:29:08,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:08,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900155133] [2024-11-14 03:29:08,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900155133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:08,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:08,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:29:08,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427724126] [2024-11-14 03:29:08,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:08,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:29:08,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:08,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:29:08,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:29:08,506 INFO L87 Difference]: Start difference. First operand 121 states and 151 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:29:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:08,684 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2024-11-14 03:29:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:29:08,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-14 03:29:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:08,686 INFO L225 Difference]: With dead ends: 150 [2024-11-14 03:29:08,686 INFO L226 Difference]: Without dead ends: 149 [2024-11-14 03:29:08,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:29:08,688 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 62 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:08,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 453 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:29:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-14 03:29:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2024-11-14 03:29:08,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 75 states have (on average 1.6933333333333334) internal successors, (127), 108 states have internal predecessors, (127), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:29:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2024-11-14 03:29:08,702 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 20 [2024-11-14 03:29:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:08,703 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2024-11-14 03:29:08,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:29:08,703 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2024-11-14 03:29:08,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:29:08,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:08,704 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:08,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:29:08,705 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:08,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:08,706 INFO L85 PathProgramCache]: Analyzing trace with hash 446938860, now seen corresponding path program 1 times [2024-11-14 03:29:08,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:08,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625777264] [2024-11-14 03:29:08,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:08,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:29:08,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:08,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625777264] [2024-11-14 03:29:08,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625777264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:08,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:08,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:29:08,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262091824] [2024-11-14 03:29:08,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:08,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:29:08,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:08,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:29:08,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:29:08,907 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:29:09,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:09,013 INFO L93 Difference]: Finished difference Result 211 states and 248 transitions. [2024-11-14 03:29:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:29:09,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-14 03:29:09,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:09,016 INFO L225 Difference]: With dead ends: 211 [2024-11-14 03:29:09,016 INFO L226 Difference]: Without dead ends: 129 [2024-11-14 03:29:09,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:29:09,017 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 9 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:09,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 328 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:29:09,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-14 03:29:09,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-14 03:29:09,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 80 states have (on average 1.65) internal successors, (132), 113 states have internal predecessors, (132), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:29:09,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions. [2024-11-14 03:29:09,030 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 21 [2024-11-14 03:29:09,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:09,030 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 156 transitions. [2024-11-14 03:29:09,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:29:09,031 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions. [2024-11-14 03:29:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:29:09,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:09,032 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:09,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:29:09,032 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:09,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:09,032 INFO L85 PathProgramCache]: Analyzing trace with hash 11517550, now seen corresponding path program 1 times [2024-11-14 03:29:09,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:09,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284834188] [2024-11-14 03:29:09,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:09,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:29:09,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274176943] [2024-11-14 03:29:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:09,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:09,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:09,065 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:09,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:29:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:09,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:29:09,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:29:09,231 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:09,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:09,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284834188] [2024-11-14 03:29:09,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:29:09,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274176943] [2024-11-14 03:29:09,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274176943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:09,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:29:09,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252533939] [2024-11-14 03:29:09,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:09,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:29:09,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:09,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:29:09,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:29:09,233 INFO L87 Difference]: Start difference. First operand 129 states and 156 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:29:09,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:09,456 INFO L93 Difference]: Finished difference Result 205 states and 275 transitions. [2024-11-14 03:29:09,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:29:09,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-14 03:29:09,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:09,459 INFO L225 Difference]: With dead ends: 205 [2024-11-14 03:29:09,459 INFO L226 Difference]: Without dead ends: 199 [2024-11-14 03:29:09,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 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 03:29:09,460 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 123 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:09,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 88 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:29:09,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-14 03:29:09,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 179. [2024-11-14 03:29:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 123 states have (on average 1.6178861788617886) internal successors, (199), 155 states have internal predecessors, (199), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 03:29:09,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2024-11-14 03:29:09,482 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 23 [2024-11-14 03:29:09,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:09,482 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2024-11-14 03:29:09,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:29:09,483 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2024-11-14 03:29:09,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 03:29:09,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:09,483 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:09,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:29:09,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:09,684 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:09,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:09,685 INFO L85 PathProgramCache]: Analyzing trace with hash 357044138, now seen corresponding path program 1 times [2024-11-14 03:29:09,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:09,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126918548] [2024-11-14 03:29:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:09,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:29:09,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064399518] [2024-11-14 03:29:09,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:09,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:09,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:09,702 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:09,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:29:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:09,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:29:09,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:09,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:29:09,871 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:09,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:09,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126918548] [2024-11-14 03:29:09,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:29:09,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064399518] [2024-11-14 03:29:09,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064399518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:09,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:09,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:29:09,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677070457] [2024-11-14 03:29:09,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:09,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:29:09,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:09,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:29:09,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:29:09,874 INFO L87 Difference]: Start difference. First operand 179 states and 239 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:29:10,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:10,176 INFO L93 Difference]: Finished difference Result 258 states and 333 transitions. [2024-11-14 03:29:10,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:29:10,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-14 03:29:10,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:10,178 INFO L225 Difference]: With dead ends: 258 [2024-11-14 03:29:10,178 INFO L226 Difference]: Without dead ends: 255 [2024-11-14 03:29:10,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:29:10,179 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 128 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:10,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 136 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:29:10,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-14 03:29:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 216. [2024-11-14 03:29:10,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 155 states have (on average 1.6258064516129032) internal successors, (252), 187 states have internal predecessors, (252), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:29:10,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 302 transitions. [2024-11-14 03:29:10,211 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 302 transitions. Word has length 24 [2024-11-14 03:29:10,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:10,211 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 302 transitions. [2024-11-14 03:29:10,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:29:10,211 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 302 transitions. [2024-11-14 03:29:10,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 03:29:10,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:10,212 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:10,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:29:10,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:10,413 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:10,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:10,413 INFO L85 PathProgramCache]: Analyzing trace with hash -344715730, now seen corresponding path program 1 times [2024-11-14 03:29:10,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:10,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566122050] [2024-11-14 03:29:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:10,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:10,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:10,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566122050] [2024-11-14 03:29:10,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566122050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:10,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:10,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:29:10,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716271552] [2024-11-14 03:29:10,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:10,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:29:10,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:10,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:29:10,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:29:10,499 INFO L87 Difference]: Start difference. First operand 216 states and 302 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:10,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:10,645 INFO L93 Difference]: Finished difference Result 216 states and 302 transitions. [2024-11-14 03:29:10,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:29:10,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-11-14 03:29:10,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:10,647 INFO L225 Difference]: With dead ends: 216 [2024-11-14 03:29:10,648 INFO L226 Difference]: Without dead ends: 214 [2024-11-14 03:29:10,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:29:10,649 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 103 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:10,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 64 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:29:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-14 03:29:10,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-14 03:29:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 155 states have (on average 1.5806451612903225) internal successors, (245), 185 states have internal predecessors, (245), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:29:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 295 transitions. [2024-11-14 03:29:10,671 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 295 transitions. Word has length 38 [2024-11-14 03:29:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:10,672 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 295 transitions. [2024-11-14 03:29:10,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:10,672 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 295 transitions. [2024-11-14 03:29:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 03:29:10,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:10,674 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:10,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:29:10,675 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:10,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:10,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2096252935, now seen corresponding path program 1 times [2024-11-14 03:29:10,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:10,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548103507] [2024-11-14 03:29:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:10,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:10,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:10,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548103507] [2024-11-14 03:29:10,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548103507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:10,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:10,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:29:10,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844818325] [2024-11-14 03:29:10,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:10,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:29:10,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:10,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:29:10,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:29:10,813 INFO L87 Difference]: Start difference. First operand 214 states and 295 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:11,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:11,044 INFO L93 Difference]: Finished difference Result 254 states and 324 transitions. [2024-11-14 03:29:11,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:29:11,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2024-11-14 03:29:11,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:11,046 INFO L225 Difference]: With dead ends: 254 [2024-11-14 03:29:11,049 INFO L226 Difference]: Without dead ends: 252 [2024-11-14 03:29:11,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:29:11,050 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 136 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:11,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 78 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:29:11,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-14 03:29:11,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 218. [2024-11-14 03:29:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.5471698113207548) internal successors, (246), 189 states have internal predecessors, (246), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:29:11,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 296 transitions. [2024-11-14 03:29:11,070 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 296 transitions. Word has length 39 [2024-11-14 03:29:11,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:11,070 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 296 transitions. [2024-11-14 03:29:11,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:11,071 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 296 transitions. [2024-11-14 03:29:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-14 03:29:11,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:11,072 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:11,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 03:29:11,072 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:11,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:11,072 INFO L85 PathProgramCache]: Analyzing trace with hash -159405295, now seen corresponding path program 1 times [2024-11-14 03:29:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:11,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906378949] [2024-11-14 03:29:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:11,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:11,142 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:11,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:11,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906378949] [2024-11-14 03:29:11,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906378949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:11,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:11,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:29:11,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275822435] [2024-11-14 03:29:11,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:11,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:29:11,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:11,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:29:11,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:11,145 INFO L87 Difference]: Start difference. First operand 218 states and 296 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:11,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:11,219 INFO L93 Difference]: Finished difference Result 226 states and 296 transitions. [2024-11-14 03:29:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:29:11,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2024-11-14 03:29:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:11,221 INFO L225 Difference]: With dead ends: 226 [2024-11-14 03:29:11,222 INFO L226 Difference]: Without dead ends: 225 [2024-11-14 03:29:11,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:11,222 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 17 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:11,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 138 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:29:11,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-14 03:29:11,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 218. [2024-11-14 03:29:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.5345911949685536) internal successors, (244), 189 states have internal predecessors, (244), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:29:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 294 transitions. [2024-11-14 03:29:11,243 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 294 transitions. Word has length 41 [2024-11-14 03:29:11,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:11,244 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 294 transitions. [2024-11-14 03:29:11,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:11,244 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 294 transitions. [2024-11-14 03:29:11,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 03:29:11,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:11,246 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:11,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 03:29:11,246 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:11,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:11,247 INFO L85 PathProgramCache]: Analyzing trace with hash -646596717, now seen corresponding path program 1 times [2024-11-14 03:29:11,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:11,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184256926] [2024-11-14 03:29:11,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:11,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:11,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:11,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184256926] [2024-11-14 03:29:11,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184256926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:11,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:11,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:29:11,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112916722] [2024-11-14 03:29:11,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:11,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:29:11,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:11,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:29:11,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:29:11,365 INFO L87 Difference]: Start difference. First operand 218 states and 294 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:29:11,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:11,499 INFO L93 Difference]: Finished difference Result 365 states and 507 transitions. [2024-11-14 03:29:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:29:11,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-14 03:29:11,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:11,502 INFO L225 Difference]: With dead ends: 365 [2024-11-14 03:29:11,503 INFO L226 Difference]: Without dead ends: 364 [2024-11-14 03:29:11,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:29:11,506 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 43 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 193 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 03:29:11,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 193 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:29:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-14 03:29:11,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 331. [2024-11-14 03:29:11,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 257 states have (on average 1.583657587548638) internal successors, (407), 287 states have internal predecessors, (407), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:29:11,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 487 transitions. [2024-11-14 03:29:11,544 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 487 transitions. Word has length 42 [2024-11-14 03:29:11,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:11,544 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 487 transitions. [2024-11-14 03:29:11,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:29:11,545 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 487 transitions. [2024-11-14 03:29:11,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 03:29:11,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:11,546 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:11,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 03:29:11,547 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:11,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:11,547 INFO L85 PathProgramCache]: Analyzing trace with hash -646595435, now seen corresponding path program 1 times [2024-11-14 03:29:11,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:11,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683625423] [2024-11-14 03:29:11,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:11,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:11,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:11,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683625423] [2024-11-14 03:29:11,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683625423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:11,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:11,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:29:11,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110654580] [2024-11-14 03:29:11,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:11,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:29:11,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:11,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:29:11,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:29:11,704 INFO L87 Difference]: Start difference. First operand 331 states and 487 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:12,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:12,290 INFO L93 Difference]: Finished difference Result 368 states and 517 transitions. [2024-11-14 03:29:12,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:29:12,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-14 03:29:12,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:12,294 INFO L225 Difference]: With dead ends: 368 [2024-11-14 03:29:12,295 INFO L226 Difference]: Without dead ends: 367 [2024-11-14 03:29:12,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:29:12,297 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 164 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:12,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 252 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:29:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-14 03:29:12,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 331. [2024-11-14 03:29:12,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 257 states have (on average 1.5603112840466926) internal successors, (401), 287 states have internal predecessors, (401), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:29:12,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 481 transitions. [2024-11-14 03:29:12,326 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 481 transitions. Word has length 42 [2024-11-14 03:29:12,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:12,327 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 481 transitions. [2024-11-14 03:29:12,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:12,327 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 481 transitions. [2024-11-14 03:29:12,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 03:29:12,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:12,329 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:12,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 03:29:12,330 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:12,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:12,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1430338387, now seen corresponding path program 1 times [2024-11-14 03:29:12,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:12,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915525241] [2024-11-14 03:29:12,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:12,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:12,420 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:12,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:12,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915525241] [2024-11-14 03:29:12,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915525241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:12,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:12,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:29:12,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310844669] [2024-11-14 03:29:12,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:12,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:29:12,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:12,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:29:12,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:29:12,422 INFO L87 Difference]: Start difference. First operand 331 states and 481 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:12,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:12,784 INFO L93 Difference]: Finished difference Result 356 states and 502 transitions. [2024-11-14 03:29:12,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:29:12,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-14 03:29:12,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:12,787 INFO L225 Difference]: With dead ends: 356 [2024-11-14 03:29:12,787 INFO L226 Difference]: Without dead ends: 354 [2024-11-14 03:29:12,788 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 03:29:12,788 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:12,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 163 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:29:12,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-14 03:29:12,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 335. [2024-11-14 03:29:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 261 states have (on average 1.5517241379310345) internal successors, (405), 291 states have internal predecessors, (405), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:29:12,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 485 transitions. [2024-11-14 03:29:12,816 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 485 transitions. Word has length 43 [2024-11-14 03:29:12,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:12,816 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 485 transitions. [2024-11-14 03:29:12,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:12,817 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 485 transitions. [2024-11-14 03:29:12,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 03:29:12,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:12,818 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-11-14 03:29:12,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 03:29:12,818 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:12,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:12,819 INFO L85 PathProgramCache]: Analyzing trace with hash 840475575, now seen corresponding path program 1 times [2024-11-14 03:29:12,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:12,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143087121] [2024-11-14 03:29:12,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:12,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:12,961 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:12,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:12,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143087121] [2024-11-14 03:29:12,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143087121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:29:12,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780683145] [2024-11-14 03:29:12,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:12,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:12,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:12,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:12,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:29:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:13,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:29:13,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:13,183 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 03:29:13,183 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:13,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780683145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:13,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:29:13,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-14 03:29:13,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119095620] [2024-11-14 03:29:13,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:13,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:29:13,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:13,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:29:13,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-14 03:29:13,185 INFO L87 Difference]: Start difference. First operand 335 states and 485 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:13,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:13,274 INFO L93 Difference]: Finished difference Result 335 states and 485 transitions. [2024-11-14 03:29:13,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:29:13,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-14 03:29:13,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:13,277 INFO L225 Difference]: With dead ends: 335 [2024-11-14 03:29:13,277 INFO L226 Difference]: Without dead ends: 333 [2024-11-14 03:29:13,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:29:13,278 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 114 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:13,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 216 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:29:13,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-14 03:29:13,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-14 03:29:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 261 states have (on average 1.5057471264367817) internal successors, (393), 289 states have internal predecessors, (393), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:29:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 473 transitions. [2024-11-14 03:29:13,310 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 473 transitions. Word has length 46 [2024-11-14 03:29:13,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:13,311 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 473 transitions. [2024-11-14 03:29:13,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:13,312 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 473 transitions. [2024-11-14 03:29:13,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 03:29:13,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:13,314 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-11-14 03:29:13,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:29:13,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 03:29:13,518 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:13,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:13,518 INFO L85 PathProgramCache]: Analyzing trace with hash 284939096, now seen corresponding path program 1 times [2024-11-14 03:29:13,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:13,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839618878] [2024-11-14 03:29:13,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:13,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:13,682 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:13,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:13,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839618878] [2024-11-14 03:29:13,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839618878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:29:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249706325] [2024-11-14 03:29:13,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:13,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:13,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:13,685 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:13,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:29:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:13,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:29:13,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:13,880 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 03:29:13,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:29:14,072 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:14,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249706325] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:29:14,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:29:14,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 6] total 18 [2024-11-14 03:29:14,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447825168] [2024-11-14 03:29:14,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:14,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:29:14,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:14,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:29:14,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:29:14,074 INFO L87 Difference]: Start difference. First operand 333 states and 473 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:14,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:14,279 INFO L93 Difference]: Finished difference Result 368 states and 495 transitions. [2024-11-14 03:29:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:29:14,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-11-14 03:29:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:14,281 INFO L225 Difference]: With dead ends: 368 [2024-11-14 03:29:14,282 INFO L226 Difference]: Without dead ends: 366 [2024-11-14 03:29:14,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2024-11-14 03:29:14,283 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 57 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:14,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 421 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:29:14,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-14 03:29:14,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 339. [2024-11-14 03:29:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 264 states have (on average 1.4696969696969697) internal successors, (388), 292 states have internal predecessors, (388), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:29:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 468 transitions. [2024-11-14 03:29:14,310 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 468 transitions. Word has length 47 [2024-11-14 03:29:14,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:14,310 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 468 transitions. [2024-11-14 03:29:14,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 468 transitions. [2024-11-14 03:29:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 03:29:14,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:14,313 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-11-14 03:29:14,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:29:14,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 03:29:14,518 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:14,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:14,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1051433997, now seen corresponding path program 1 times [2024-11-14 03:29:14,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:14,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569195080] [2024-11-14 03:29:14,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:14,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:14,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:14,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569195080] [2024-11-14 03:29:14,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569195080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:29:14,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381700979] [2024-11-14 03:29:14,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:14,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:14,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:14,661 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:14,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:29:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:14,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:29:14,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:14,826 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 03:29:14,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:29:14,989 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:29:14,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381700979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:29:14,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1165092592] [2024-11-14 03:29:15,017 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-14 03:29:15,018 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:29:15,021 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:29:15,027 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:29:15,028 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:29:23,305 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 03:29:23,307 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:29:27,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1165092592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:27,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:29:27,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9, 7, 8] total 29 [2024-11-14 03:29:27,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138410569] [2024-11-14 03:29:27,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:27,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:29:27,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:27,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:29:27,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:29:27,666 INFO L87 Difference]: Start difference. First operand 339 states and 468 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:29,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:29,022 INFO L93 Difference]: Finished difference Result 476 states and 629 transitions. [2024-11-14 03:29:29,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 03:29:29,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-11-14 03:29:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:29,025 INFO L225 Difference]: With dead ends: 476 [2024-11-14 03:29:29,025 INFO L226 Difference]: Without dead ends: 320 [2024-11-14 03:29:29,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 106 SyntacticMatches, 21 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=182, Invalid=748, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:29:29,027 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 30 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:29,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 133 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:29:29,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-14 03:29:29,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 303. [2024-11-14 03:29:29,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 230 states have (on average 1.4130434782608696) internal successors, (325), 259 states have internal predecessors, (325), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 03:29:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 397 transitions. [2024-11-14 03:29:29,061 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 397 transitions. Word has length 49 [2024-11-14 03:29:29,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:29,061 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 397 transitions. [2024-11-14 03:29:29,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:29:29,062 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 397 transitions. [2024-11-14 03:29:29,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 03:29:29,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:29,062 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-14 03:29:29,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 03:29:29,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:29,267 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:29,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:29,267 INFO L85 PathProgramCache]: Analyzing trace with hash -789173253, now seen corresponding path program 1 times [2024-11-14 03:29:29,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:29,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043348851] [2024-11-14 03:29:29,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:29,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:29:29,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:29,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043348851] [2024-11-14 03:29:29,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043348851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:29:29,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210923039] [2024-11-14 03:29:29,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:29,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:29,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:29,425 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:29,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:29:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:29,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:29:29,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:29:29,620 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:29:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:29:29,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210923039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:29:29,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [573617772] [2024-11-14 03:29:29,786 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:29:29,787 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:29:29,787 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:29:29,787 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:29:29,787 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:29:34,947 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:29:34,950 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:29:40,817 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11514#(and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 2147483647 ~counter~0) (<= |ULTIMATE.start_main_~y~0#1| 1073741823) (<= 0 (+ 4611686018427387903 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 1) 0) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0))' at error location [2024-11-14 03:29:40,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:29:40,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:29:40,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-14 03:29:40,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427030036] [2024-11-14 03:29:40,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:29:40,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:29:40,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:40,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:29:40,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1040, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 03:29:40,820 INFO L87 Difference]: Start difference. First operand 303 states and 397 transitions. Second operand has 19 states, 18 states have (on average 6.0) internal successors, (108), 19 states have internal predecessors, (108), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 03:29:41,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:41,415 INFO L93 Difference]: Finished difference Result 765 states and 981 transitions. [2024-11-14 03:29:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 03:29:41,416 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.0) internal successors, (108), 19 states have internal predecessors, (108), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 54 [2024-11-14 03:29:41,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:41,420 INFO L225 Difference]: With dead ends: 765 [2024-11-14 03:29:41,420 INFO L226 Difference]: Without dead ends: 651 [2024-11-14 03:29:41,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 114 SyntacticMatches, 20 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=462, Invalid=2294, Unknown=0, NotChecked=0, Total=2756 [2024-11-14 03:29:41,422 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 374 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:41,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 669 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:29:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-14 03:29:41,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 524. [2024-11-14 03:29:41,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 413 states have (on average 1.460048426150121) internal successors, (603), 442 states have internal predecessors, (603), 68 states have call successors, (68), 14 states have call predecessors, (68), 14 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-14 03:29:41,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 739 transitions. [2024-11-14 03:29:41,465 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 739 transitions. Word has length 54 [2024-11-14 03:29:41,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:41,466 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 739 transitions. [2024-11-14 03:29:41,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.0) internal successors, (108), 19 states have internal predecessors, (108), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 03:29:41,466 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 739 transitions. [2024-11-14 03:29:41,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 03:29:41,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:41,467 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-14 03:29:41,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:29:41,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:41,668 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:41,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:41,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1813717949, now seen corresponding path program 1 times [2024-11-14 03:29:41,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:41,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097503564] [2024-11-14 03:29:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:41,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:29:41,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [106687760] [2024-11-14 03:29:41,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:41,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:41,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:41,701 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:41,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:29:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:41,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:29:41,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:29:41,928 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:29:41,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:41,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097503564] [2024-11-14 03:29:41,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:29:41,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106687760] [2024-11-14 03:29:41,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106687760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:41,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:41,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:29:41,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82280998] [2024-11-14 03:29:41,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:41,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:29:41,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:41,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:29:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:29:41,930 INFO L87 Difference]: Start difference. First operand 524 states and 739 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:29:42,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:42,186 INFO L93 Difference]: Finished difference Result 545 states and 778 transitions. [2024-11-14 03:29:42,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:29:42,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 56 [2024-11-14 03:29:42,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:42,189 INFO L225 Difference]: With dead ends: 545 [2024-11-14 03:29:42,190 INFO L226 Difference]: Without dead ends: 541 [2024-11-14 03:29:42,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:29:42,190 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 134 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:42,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 151 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:29:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-14 03:29:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 516. [2024-11-14 03:29:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 409 states have (on average 1.374083129584352) internal successors, (562), 434 states have internal predecessors, (562), 68 states have call successors, (68), 14 states have call predecessors, (68), 14 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-14 03:29:42,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 698 transitions. [2024-11-14 03:29:42,236 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 698 transitions. Word has length 56 [2024-11-14 03:29:42,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:42,236 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 698 transitions. [2024-11-14 03:29:42,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:29:42,236 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 698 transitions. [2024-11-14 03:29:42,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 03:29:42,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:42,237 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-14 03:29:42,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 03:29:42,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:42,441 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:42,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:42,442 INFO L85 PathProgramCache]: Analyzing trace with hash 390681659, now seen corresponding path program 1 times [2024-11-14 03:29:42,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:42,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047643595] [2024-11-14 03:29:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:42,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:29:42,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371452574] [2024-11-14 03:29:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:42,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:42,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:42,468 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:42,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:29:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:42,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:29:42,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 03:29:42,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:29:42,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:42,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047643595] [2024-11-14 03:29:42,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:29:42,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371452574] [2024-11-14 03:29:42,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371452574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:29:42,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [310971978] [2024-11-14 03:29:42,968 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:29:42,968 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:29:42,969 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:29:42,969 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:29:42,969 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:29:46,128 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:29:46,129 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:29:52,421 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14807#(exists ((|v_ULTIMATE.start_main_~a~0#1_65| Int) (|v_ULTIMATE.start_main_~y~0#1_69| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_69| |v_ULTIMATE.start_main_~a~0#1_65|)) (exists ((|v_ULTIMATE.start_main_#t~post7#1_40| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_69| 1073741823) (= ~counter~0 (+ |v_ULTIMATE.start_main_#t~post7#1_40| 1)) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 0 (+ 4611686018427387903 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= 1 |v_ULTIMATE.start_main_~y~0#1_69|) (<= (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 1) 0) (<= |v_ULTIMATE.start_main_#t~post7#1_40| 99) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0) (<= 3 ~counter~0)))))' at error location [2024-11-14 03:29:52,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:29:52,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:29:52,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 03:29:52,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339840694] [2024-11-14 03:29:52,422 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:29:52,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:29:52,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:52,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:29:52,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:29:52,423 INFO L87 Difference]: Start difference. First operand 516 states and 698 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:29:52,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:52,692 INFO L93 Difference]: Finished difference Result 662 states and 931 transitions. [2024-11-14 03:29:52,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:29:52,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2024-11-14 03:29:52,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:52,699 INFO L225 Difference]: With dead ends: 662 [2024-11-14 03:29:52,699 INFO L226 Difference]: Without dead ends: 658 [2024-11-14 03:29:52,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 81 SyntacticMatches, 20 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:29:52,703 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 147 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:52,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 206 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:29:52,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-14 03:29:52,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 596. [2024-11-14 03:29:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 479 states have (on average 1.3757828810020878) internal successors, (659), 504 states have internal predecessors, (659), 78 states have call successors, (78), 14 states have call predecessors, (78), 14 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-14 03:29:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 815 transitions. [2024-11-14 03:29:52,768 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 815 transitions. Word has length 57 [2024-11-14 03:29:52,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:52,769 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 815 transitions. [2024-11-14 03:29:52,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:29:52,769 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 815 transitions. [2024-11-14 03:29:52,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:29:52,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:52,770 INFO L215 NwaCegarLoop]: trace histogram [9, 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] [2024-11-14 03:29:52,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 03:29:52,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-14 03:29:52,972 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:29:52,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1585799352, now seen corresponding path program 1 times [2024-11-14 03:29:52,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:52,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200849376] [2024-11-14 03:29:52,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:52,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:29:53,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:53,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200849376] [2024-11-14 03:29:53,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200849376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:29:53,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436627969] [2024-11-14 03:29:53,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:53,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:53,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:53,055 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:53,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:29:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:53,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:29:53,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:53,194 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:29:53,194 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:29:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:29:53,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436627969] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:29:53,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1720703948] [2024-11-14 03:29:53,338 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:29:53,339 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:29:53,340 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:29:53,340 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:29:53,340 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:29:56,463 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:29:56,463 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:30:02,556 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16797#(and (<= 1 |#StackHeapBarrier|) (= (mod (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) 2) 0) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 1073741823) (<= 4611686018427387904 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= ~counter~0 100) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= 3 ~counter~0))' at error location [2024-11-14 03:30:02,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:30:02,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:30:02,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-14 03:30:02,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900764672] [2024-11-14 03:30:02,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:30:02,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:30:02,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:30:02,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2024-11-14 03:30:02,558 INFO L87 Difference]: Start difference. First operand 596 states and 815 transitions. Second operand has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 8 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-11-14 03:30:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:03,742 INFO L93 Difference]: Finished difference Result 883 states and 1208 transitions. [2024-11-14 03:30:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 03:30:03,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 8 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) Word has length 72 [2024-11-14 03:30:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:03,748 INFO L225 Difference]: With dead ends: 883 [2024-11-14 03:30:03,748 INFO L226 Difference]: Without dead ends: 881 [2024-11-14 03:30:03,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 171 SyntacticMatches, 26 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=256, Invalid=934, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 03:30:03,749 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 435 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:03,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 441 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:30:03,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-14 03:30:03,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 619. [2024-11-14 03:30:03,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 497 states have (on average 1.3460764587525151) internal successors, (669), 521 states have internal predecessors, (669), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 03:30:03,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 837 transitions. [2024-11-14 03:30:03,812 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 837 transitions. Word has length 72 [2024-11-14 03:30:03,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:03,813 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 837 transitions. [2024-11-14 03:30:03,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 8 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-11-14 03:30:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 837 transitions. [2024-11-14 03:30:03,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 03:30:03,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:03,814 INFO L215 NwaCegarLoop]: trace histogram [9, 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] [2024-11-14 03:30:03,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:30:04,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-14 03:30:04,018 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:30:04,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:04,018 INFO L85 PathProgramCache]: Analyzing trace with hash 760216224, now seen corresponding path program 1 times [2024-11-14 03:30:04,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:04,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6872862] [2024-11-14 03:30:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:04,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:30:04,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:04,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6872862] [2024-11-14 03:30:04,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6872862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:04,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:04,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:30:04,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935787877] [2024-11-14 03:30:04,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:04,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:30:04,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:04,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:30:04,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:30:04,093 INFO L87 Difference]: Start difference. First operand 619 states and 837 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 03:30:04,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:04,196 INFO L93 Difference]: Finished difference Result 619 states and 837 transitions. [2024-11-14 03:30:04,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:30:04,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2024-11-14 03:30:04,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:04,200 INFO L225 Difference]: With dead ends: 619 [2024-11-14 03:30:04,200 INFO L226 Difference]: Without dead ends: 618 [2024-11-14 03:30:04,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:30:04,201 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 20 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:04,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 135 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:30:04,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-14 03:30:04,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2024-11-14 03:30:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 497 states have (on average 1.3380281690140845) internal successors, (665), 520 states have internal predecessors, (665), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 03:30:04,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 833 transitions. [2024-11-14 03:30:04,247 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 833 transitions. Word has length 74 [2024-11-14 03:30:04,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:04,247 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 833 transitions. [2024-11-14 03:30:04,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 03:30:04,248 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 833 transitions. [2024-11-14 03:30:04,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:30:04,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:04,249 INFO L215 NwaCegarLoop]: trace histogram [9, 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] [2024-11-14 03:30:04,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-14 03:30:04,249 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:30:04,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:04,249 INFO L85 PathProgramCache]: Analyzing trace with hash 423355170, now seen corresponding path program 1 times [2024-11-14 03:30:04,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:04,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551678014] [2024-11-14 03:30:04,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:04,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:30:04,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:04,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551678014] [2024-11-14 03:30:04,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551678014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:04,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214534609] [2024-11-14 03:30:04,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:04,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:04,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:04,348 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:04,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:30:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:04,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:30:04,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:30:04,579 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:30:04,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214534609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:04,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:30:04,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-14 03:30:04,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171617648] [2024-11-14 03:30:04,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:04,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:30:04,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:04,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:30:04,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:30:04,581 INFO L87 Difference]: Start difference. First operand 618 states and 833 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 03:30:04,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:04,965 INFO L93 Difference]: Finished difference Result 663 states and 914 transitions. [2024-11-14 03:30:04,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:30:04,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2024-11-14 03:30:04,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:04,968 INFO L225 Difference]: With dead ends: 663 [2024-11-14 03:30:04,969 INFO L226 Difference]: Without dead ends: 662 [2024-11-14 03:30:04,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:30:04,970 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 87 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:04,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 118 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:30:04,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-14 03:30:05,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 617. [2024-11-14 03:30:05,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 497 states have (on average 1.3219315895372235) internal successors, (657), 519 states have internal predecessors, (657), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 03:30:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 825 transitions. [2024-11-14 03:30:05,026 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 825 transitions. Word has length 76 [2024-11-14 03:30:05,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:05,027 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 825 transitions. [2024-11-14 03:30:05,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 03:30:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 825 transitions. [2024-11-14 03:30:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:30:05,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:05,029 INFO L215 NwaCegarLoop]: trace histogram [9, 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] [2024-11-14 03:30:05,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:30:05,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 03:30:05,230 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:30:05,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:05,231 INFO L85 PathProgramCache]: Analyzing trace with hash 239108518, now seen corresponding path program 1 times [2024-11-14 03:30:05,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:05,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455910730] [2024-11-14 03:30:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:05,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:30:05,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:05,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455910730] [2024-11-14 03:30:05,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455910730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:05,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050395176] [2024-11-14 03:30:05,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:05,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:05,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:05,337 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:05,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 03:30:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:05,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:30:05,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:05,579 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:30:05,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:30:05,728 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:30:05,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050395176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:30:05,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [269702174] [2024-11-14 03:30:05,730 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:30:05,730 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:30:05,731 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:30:05,731 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:30:05,731 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:30:08,768 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:30:08,768 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:30:15,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [269702174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:15,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:30:15,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [4, 4, 4] total 28 [2024-11-14 03:30:15,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294078506] [2024-11-14 03:30:15,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:15,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 03:30:15,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:15,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 03:30:15,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:30:15,452 INFO L87 Difference]: Start difference. First operand 617 states and 825 transitions. Second operand has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 19 states have internal predecessors, (39), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:30:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:19,196 INFO L93 Difference]: Finished difference Result 642 states and 848 transitions. [2024-11-14 03:30:19,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-14 03:30:19,200 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 19 states have internal predecessors, (39), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 77 [2024-11-14 03:30:19,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:19,202 INFO L225 Difference]: With dead ends: 642 [2024-11-14 03:30:19,202 INFO L226 Difference]: Without dead ends: 638 [2024-11-14 03:30:19,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 177 SyntacticMatches, 29 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=354, Invalid=1206, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:30:19,203 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 37 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:19,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 98 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 03:30:19,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-14 03:30:19,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 627. [2024-11-14 03:30:19,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 507 states have (on average 1.2998027613412229) internal successors, (659), 529 states have internal predecessors, (659), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 03:30:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 827 transitions. [2024-11-14 03:30:19,264 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 827 transitions. Word has length 77 [2024-11-14 03:30:19,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:19,265 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 827 transitions. [2024-11-14 03:30:19,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 19 states have internal predecessors, (39), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:30:19,265 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 827 transitions. [2024-11-14 03:30:19,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:30:19,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:19,266 INFO L215 NwaCegarLoop]: trace histogram [9, 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] [2024-11-14 03:30:19,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 03:30:19,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 03:30:19,467 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:30:19,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:19,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2068841561, now seen corresponding path program 1 times [2024-11-14 03:30:19,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:19,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367260802] [2024-11-14 03:30:19,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:30:19,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:19,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367260802] [2024-11-14 03:30:19,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367260802] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:19,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373357390] [2024-11-14 03:30:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:19,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:19,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:19,669 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:19,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 03:30:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:19,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:30:19,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:19,912 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 68 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:30:19,913 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:30:20,138 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:30:20,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373357390] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:30:20,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [611677862] [2024-11-14 03:30:20,140 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:30:20,141 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:30:20,142 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:30:20,142 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:30:20,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:30:52,351 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:30:52,353 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:30:58,035 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24550#(and (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1| 1) (+ (* 2 |ULTIMATE.start_main_~b~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= 1 |#StackHeapBarrier|) (= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) (+ 9223372036854775808 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|)))' at error location [2024-11-14 03:30:58,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:30:58,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:30:58,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-14 03:30:58,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462019786] [2024-11-14 03:30:58,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:30:58,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-14 03:30:58,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:58,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-14 03:30:58,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=497, Invalid=3163, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 03:30:58,038 INFO L87 Difference]: Start difference. First operand 627 states and 827 transitions. Second operand has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 25 states have internal predecessors, (160), 9 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-14 03:30:58,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:58,885 INFO L93 Difference]: Finished difference Result 822 states and 1021 transitions. [2024-11-14 03:30:58,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-14 03:30:58,885 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 25 states have internal predecessors, (160), 9 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 80 [2024-11-14 03:30:58,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:58,889 INFO L225 Difference]: With dead ends: 822 [2024-11-14 03:30:58,889 INFO L226 Difference]: Without dead ends: 813 [2024-11-14 03:30:58,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 181 SyntacticMatches, 8 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2891 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=888, Invalid=6084, Unknown=0, NotChecked=0, Total=6972 [2024-11-14 03:30:58,892 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 255 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:58,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 957 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:30:58,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-14 03:30:58,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 657. [2024-11-14 03:30:58,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 529 states have (on average 1.2911153119092627) internal successors, (683), 554 states have internal predecessors, (683), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-14 03:30:58,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 863 transitions. [2024-11-14 03:30:58,961 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 863 transitions. Word has length 80 [2024-11-14 03:30:58,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:58,961 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 863 transitions. [2024-11-14 03:30:58,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 25 states have internal predecessors, (160), 9 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-14 03:30:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 863 transitions. [2024-11-14 03:30:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:30:58,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:58,963 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-14 03:30:58,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 03:30:59,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 03:30:59,164 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:30:59,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:59,166 INFO L85 PathProgramCache]: Analyzing trace with hash -297787203, now seen corresponding path program 1 times [2024-11-14 03:30:59,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:59,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158156163] [2024-11-14 03:30:59,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:59,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:30:59,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:59,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158156163] [2024-11-14 03:30:59,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158156163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:59,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285775087] [2024-11-14 03:30:59,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:59,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:59,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:59,293 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:59,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:30:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:59,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:30:59,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:30:59,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:30:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:30:59,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285775087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:30:59,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2047553761] [2024-11-14 03:30:59,762 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2024-11-14 03:30:59,762 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:30:59,762 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:30:59,762 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:30:59,762 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:31:03,127 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 03:31:03,128 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:31:08,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2047553761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:08,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:31:08,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5, 5] total 21 [2024-11-14 03:31:08,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813773341] [2024-11-14 03:31:08,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:08,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 03:31:08,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:08,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 03:31:08,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:31:08,130 INFO L87 Difference]: Start difference. First operand 657 states and 863 transitions. Second operand has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:31:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:09,162 INFO L93 Difference]: Finished difference Result 664 states and 870 transitions. [2024-11-14 03:31:09,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 03:31:09,163 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-14 03:31:09,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:09,165 INFO L225 Difference]: With dead ends: 664 [2024-11-14 03:31:09,165 INFO L226 Difference]: Without dead ends: 663 [2024-11-14 03:31:09,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 197 SyntacticMatches, 41 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-11-14 03:31:09,166 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 12 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:09,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 123 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:31:09,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-14 03:31:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 656. [2024-11-14 03:31:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 529 states have (on average 1.289224952741021) internal successors, (682), 553 states have internal predecessors, (682), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-14 03:31:09,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 862 transitions. [2024-11-14 03:31:09,234 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 862 transitions. Word has length 85 [2024-11-14 03:31:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:09,234 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 862 transitions. [2024-11-14 03:31:09,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 03:31:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 862 transitions. [2024-11-14 03:31:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:31:09,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:09,236 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 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 03:31:09,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 03:31:09,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 03:31:09,437 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:31:09,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:09,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1369479481, now seen corresponding path program 1 times [2024-11-14 03:31:09,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:09,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271710364] [2024-11-14 03:31:09,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:09,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:31:09,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515271612] [2024-11-14 03:31:09,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:09,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:09,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:09,491 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:09,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 03:31:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:09,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:31:09,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:31:09,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:31:09,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:09,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271710364] [2024-11-14 03:31:09,925 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:31:09,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515271612] [2024-11-14 03:31:09,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515271612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:09,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:31:09,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:31:09,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834211340] [2024-11-14 03:31:09,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:09,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:31:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:09,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:31:09,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:31:09,927 INFO L87 Difference]: Start difference. First operand 656 states and 862 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 03:31:10,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:10,308 INFO L93 Difference]: Finished difference Result 857 states and 1160 transitions. [2024-11-14 03:31:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:31:10,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 87 [2024-11-14 03:31:10,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:10,313 INFO L225 Difference]: With dead ends: 857 [2024-11-14 03:31:10,314 INFO L226 Difference]: Without dead ends: 854 [2024-11-14 03:31:10,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:31:10,315 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 134 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:10,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 287 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:31:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-14 03:31:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 653. [2024-11-14 03:31:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 529 states have (on average 1.2570888468809074) internal successors, (665), 550 states have internal predecessors, (665), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-14 03:31:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 845 transitions. [2024-11-14 03:31:10,388 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 845 transitions. Word has length 87 [2024-11-14 03:31:10,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:10,388 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 845 transitions. [2024-11-14 03:31:10,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 03:31:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 845 transitions. [2024-11-14 03:31:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:31:10,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:10,390 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 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] [2024-11-14 03:31:10,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-14 03:31:10,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 03:31:10,592 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:31:10,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:10,593 INFO L85 PathProgramCache]: Analyzing trace with hash -495808988, now seen corresponding path program 1 times [2024-11-14 03:31:10,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:10,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078719593] [2024-11-14 03:31:10,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:10,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:31:10,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387171696] [2024-11-14 03:31:10,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:10,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:10,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:10,615 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:10,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 03:31:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:10,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:31:10,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:11,019 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:31:11,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:31:11,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:11,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078719593] [2024-11-14 03:31:11,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:31:11,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387171696] [2024-11-14 03:31:11,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387171696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:31:11,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1251134310] [2024-11-14 03:31:11,371 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:31:11,371 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:31:11,371 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:31:11,372 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:31:11,372 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:31:44,873 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:31:44,874 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:31:57,430 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31020#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~q~0#1_96| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_71| 2147483647) (= |ULTIMATE.start_main_~b~0#1| (* |v_ULTIMATE.start_main_~y~0#1_71| |ULTIMATE.start_main_~a~0#1|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_71|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_96| |v_ULTIMATE.start_main_~y~0#1_71|)) (<= |v_ULTIMATE.start_main_~q~0#1_96| 9223372036854775807))) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~r~0#1| 4611686018427387902) (<= ~counter~0 100) (<= 0 (+ 4611686018427387903 |ULTIMATE.start_main_~r~0#1|)) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-14 03:31:57,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:31:57,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:31:57,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 03:31:57,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676000667] [2024-11-14 03:31:57,431 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:31:57,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:31:57,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:57,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:31:57,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=1644, Unknown=3, NotChecked=0, Total=1980 [2024-11-14 03:31:57,432 INFO L87 Difference]: Start difference. First operand 653 states and 845 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 03:31:57,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:57,809 INFO L93 Difference]: Finished difference Result 827 states and 1085 transitions. [2024-11-14 03:31:57,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:31:57,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 88 [2024-11-14 03:31:57,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:57,813 INFO L225 Difference]: With dead ends: 827 [2024-11-14 03:31:57,814 INFO L226 Difference]: Without dead ends: 824 [2024-11-14 03:31:57,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 143 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=340, Invalid=1727, Unknown=3, NotChecked=0, Total=2070 [2024-11-14 03:31:57,815 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 126 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:57,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 241 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:31:57,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-11-14 03:31:57,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 785. [2024-11-14 03:31:57,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 639 states have (on average 1.2644757433489828) internal successors, (808), 661 states have internal predecessors, (808), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 03:31:57,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1032 transitions. [2024-11-14 03:31:57,891 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1032 transitions. Word has length 88 [2024-11-14 03:31:57,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:57,892 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 1032 transitions. [2024-11-14 03:31:57,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 03:31:57,892 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1032 transitions. [2024-11-14 03:31:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 03:31:57,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:57,893 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 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] [2024-11-14 03:31:57,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 03:31:58,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:58,094 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:31:58,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:58,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1809790619, now seen corresponding path program 1 times [2024-11-14 03:31:58,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:58,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530015719] [2024-11-14 03:31:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:58,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:58,268 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:31:58,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:58,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530015719] [2024-11-14 03:31:58,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530015719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:31:58,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:31:58,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:31:58,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547989884] [2024-11-14 03:31:58,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:31:58,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:31:58,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:58,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:31:58,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:31:58,270 INFO L87 Difference]: Start difference. First operand 785 states and 1032 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 03:31:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:59,343 INFO L93 Difference]: Finished difference Result 788 states and 1033 transitions. [2024-11-14 03:31:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:31:59,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 89 [2024-11-14 03:31:59,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:59,346 INFO L225 Difference]: With dead ends: 788 [2024-11-14 03:31:59,347 INFO L226 Difference]: Without dead ends: 785 [2024-11-14 03:31:59,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:31:59,348 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 103 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:59,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 171 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:31:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2024-11-14 03:31:59,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 782. [2024-11-14 03:31:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 639 states have (on average 1.2284820031298904) internal successors, (785), 658 states have internal predecessors, (785), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 03:31:59,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1009 transitions. [2024-11-14 03:31:59,432 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1009 transitions. Word has length 89 [2024-11-14 03:31:59,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:59,432 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1009 transitions. [2024-11-14 03:31:59,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 03:31:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1009 transitions. [2024-11-14 03:31:59,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 03:31:59,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:59,434 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 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] [2024-11-14 03:31:59,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-14 03:31:59,434 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:31:59,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:59,434 INFO L85 PathProgramCache]: Analyzing trace with hash 268934406, now seen corresponding path program 1 times [2024-11-14 03:31:59,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:59,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468420009] [2024-11-14 03:31:59,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:59,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:31:59,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703553994] [2024-11-14 03:31:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:59,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:59,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:59,457 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:59,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 03:31:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:59,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:31:59,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:00,058 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:32:00,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:04,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:04,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468420009] [2024-11-14 03:32:04,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:32:04,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703553994] [2024-11-14 03:32:04,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703553994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:04,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [262041538] [2024-11-14 03:32:04,574 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:32:04,574 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:04,574 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:04,575 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:04,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:37,681 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:32:37,682 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:44,571 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35478#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~q~0#1_114| Int) (|v_ULTIMATE.start_main_~y~0#1_72| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_72| 2147483647) (<= 4611686018427387906 (* |v_ULTIMATE.start_main_~q~0#1_114| |v_ULTIMATE.start_main_~y~0#1_72|)) (= (* |v_ULTIMATE.start_main_~y~0#1_72| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~b~0#1|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_72|) (<= (* |v_ULTIMATE.start_main_~q~0#1_114| |v_ULTIMATE.start_main_~y~0#1_72|) 9223372036854775807))) (<= ~counter~0 100) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-14 03:32:44,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:32:44,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:32:44,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 03:32:44,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052441779] [2024-11-14 03:32:44,572 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:32:44,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:32:44,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:44,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:32:44,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=2060, Unknown=2, NotChecked=0, Total=2450 [2024-11-14 03:32:44,573 INFO L87 Difference]: Start difference. First operand 782 states and 1009 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 03:32:45,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:32:45,098 INFO L93 Difference]: Finished difference Result 806 states and 1028 transitions. [2024-11-14 03:32:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:32:45,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 90 [2024-11-14 03:32:45,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:32:45,101 INFO L225 Difference]: With dead ends: 806 [2024-11-14 03:32:45,101 INFO L226 Difference]: Without dead ends: 799 [2024-11-14 03:32:45,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 197 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=388, Invalid=2060, Unknown=2, NotChecked=0, Total=2450 [2024-11-14 03:32:45,102 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 76 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:32:45,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 303 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:32:45,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-14 03:32:45,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 780. [2024-11-14 03:32:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 637 states have (on average 1.218210361067504) internal successors, (776), 656 states have internal predecessors, (776), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 03:32:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1000 transitions. [2024-11-14 03:32:45,192 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1000 transitions. Word has length 90 [2024-11-14 03:32:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:32:45,192 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1000 transitions. [2024-11-14 03:32:45,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 03:32:45,192 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1000 transitions. [2024-11-14 03:32:45,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 03:32:45,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:32:45,194 INFO L215 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:32:45,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 03:32:45,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-14 03:32:45,394 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:32:45,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:32:45,395 INFO L85 PathProgramCache]: Analyzing trace with hash 679388618, now seen corresponding path program 2 times [2024-11-14 03:32:45,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:32:45,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641248508] [2024-11-14 03:32:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:32:45,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:32:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:32:45,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651562633] [2024-11-14 03:32:45,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:32:45,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:32:45,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:32:45,411 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:32:45,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 03:32:45,464 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:32:45,464 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:32:45,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:32:45,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:45,782 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-14 03:32:45,782 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:48,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:48,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641248508] [2024-11-14 03:32:48,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:32:48,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651562633] [2024-11-14 03:32:48,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651562633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:48,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [394869664] [2024-11-14 03:32:48,176 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:32:48,176 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:48,176 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:48,177 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:48,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:51,281 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:32:51,282 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:58,981 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37766#(exists ((|v_ULTIMATE.start_main_~y~0#1_75| Int) (|v_ULTIMATE.start_main_~a~0#1_161| Int)) (and (exists ((|v_ULTIMATE.start_main_#t~post7#1_126| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |v_ULTIMATE.start_main_~y~0#1_75| 1073741823) (<= 0 (+ 4611686018427387903 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= 2 |v_ULTIMATE.start_main_#t~post7#1_126|) (<= (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 1) 0) (<= 1 |v_ULTIMATE.start_main_~y~0#1_75|) (<= |v_ULTIMATE.start_main_#t~post7#1_126| 99) (= ~counter~0 (+ |v_ULTIMATE.start_main_#t~post7#1_126| 1)) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_161| |v_ULTIMATE.start_main_~y~0#1_75|))))' at error location [2024-11-14 03:32:58,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:32:58,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:32:58,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 03:32:58,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660232357] [2024-11-14 03:32:58,982 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:32:58,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:32:58,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:58,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:32:58,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=517, Unknown=1, NotChecked=0, Total=650 [2024-11-14 03:32:58,983 INFO L87 Difference]: Start difference. First operand 780 states and 1000 transitions. Second operand has 7 states, 5 states have (on average 9.6) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:33:00,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:00,114 INFO L93 Difference]: Finished difference Result 1070 states and 1401 transitions. [2024-11-14 03:33:00,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:33:00,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.6) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2024-11-14 03:33:00,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:00,119 INFO L225 Difference]: With dead ends: 1070 [2024-11-14 03:33:00,119 INFO L226 Difference]: Without dead ends: 1068 [2024-11-14 03:33:00,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 133 SyntacticMatches, 33 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=152, Invalid=603, Unknown=1, NotChecked=0, Total=756 [2024-11-14 03:33:00,120 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 124 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:00,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 283 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:33:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-14 03:33:00,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 788. [2024-11-14 03:33:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 645 states have (on average 1.2124031007751939) internal successors, (782), 664 states have internal predecessors, (782), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 03:33:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1006 transitions. [2024-11-14 03:33:00,218 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1006 transitions. Word has length 90 [2024-11-14 03:33:00,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:00,219 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 1006 transitions. [2024-11-14 03:33:00,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.6) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 03:33:00,219 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1006 transitions. [2024-11-14 03:33:00,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 03:33:00,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:00,220 INFO L215 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:00,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-14 03:33:00,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:00,424 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:33:00,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:00,428 INFO L85 PathProgramCache]: Analyzing trace with hash 56943242, now seen corresponding path program 1 times [2024-11-14 03:33:00,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:00,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981521006] [2024-11-14 03:33:00,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:00,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:00,628 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:33:00,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:00,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981521006] [2024-11-14 03:33:00,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981521006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:00,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627535644] [2024-11-14 03:33:00,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:00,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:00,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:00,631 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:00,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 03:33:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:00,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:33:00,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 03:33:00,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:33:01,108 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:33:01,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627535644] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:33:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [717968957] [2024-11-14 03:33:01,109 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:33:01,110 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:33:01,110 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:33:01,110 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:33:01,110 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:33:03,836 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:33:03,837 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:33:12,119 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40623#(and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 101 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (div |ULTIMATE.start_main_~b~0#1| 2) 4611686018427387903) (<= 2 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 1073741823) (<= ~counter~0 2147483647) (<= 1 (div |ULTIMATE.start_main_~b~0#1| 2)) (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) 2147483647) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0))' at error location [2024-11-14 03:33:12,120 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:33:12,120 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:33:12,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-14 03:33:12,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641236130] [2024-11-14 03:33:12,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:33:12,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 03:33:12,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:12,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 03:33:12,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1427, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 03:33:12,122 INFO L87 Difference]: Start difference. First operand 788 states and 1006 transitions. Second operand has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-14 03:33:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:12,794 INFO L93 Difference]: Finished difference Result 1159 states and 1453 transitions. [2024-11-14 03:33:12,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 03:33:12,794 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 92 [2024-11-14 03:33:12,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:12,799 INFO L225 Difference]: With dead ends: 1159 [2024-11-14 03:33:12,799 INFO L226 Difference]: Without dead ends: 948 [2024-11-14 03:33:12,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 212 SyntacticMatches, 34 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2091 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=461, Invalid=2845, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 03:33:12,801 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 201 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:12,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 732 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:33:12,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-14 03:33:12,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 905. [2024-11-14 03:33:12,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 741 states have (on average 1.1889338731443995) internal successors, (881), 761 states have internal predecessors, (881), 128 states have call successors, (128), 21 states have call predecessors, (128), 21 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-14 03:33:12,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1137 transitions. [2024-11-14 03:33:12,914 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1137 transitions. Word has length 92 [2024-11-14 03:33:12,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:12,914 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1137 transitions. [2024-11-14 03:33:12,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-14 03:33:12,915 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1137 transitions. [2024-11-14 03:33:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-14 03:33:12,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:12,916 INFO L215 NwaCegarLoop]: trace histogram [12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:12,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 03:33:13,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:13,119 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:33:13,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1465152392, now seen corresponding path program 1 times [2024-11-14 03:33:13,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:13,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057305905] [2024-11-14 03:33:13,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:13,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-14 03:33:13,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:13,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057305905] [2024-11-14 03:33:13,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057305905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:33:13,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:33:13,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:33:13,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971373265] [2024-11-14 03:33:13,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:33:13,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:33:13,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:13,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:33:13,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:33:13,403 INFO L87 Difference]: Start difference. First operand 905 states and 1137 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:33:14,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:14,012 INFO L93 Difference]: Finished difference Result 908 states and 1140 transitions. [2024-11-14 03:33:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:33:14,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2024-11-14 03:33:14,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:14,016 INFO L225 Difference]: With dead ends: 908 [2024-11-14 03:33:14,017 INFO L226 Difference]: Without dead ends: 906 [2024-11-14 03:33:14,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:33:14,018 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:14,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 55 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:33:14,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-14 03:33:14,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2024-11-14 03:33:14,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 743 states have (on average 1.1695827725437415) internal successors, (869), 762 states have internal predecessors, (869), 128 states have call successors, (128), 21 states have call predecessors, (128), 21 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-14 03:33:14,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1125 transitions. [2024-11-14 03:33:14,123 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1125 transitions. Word has length 105 [2024-11-14 03:33:14,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:14,123 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1125 transitions. [2024-11-14 03:33:14,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:33:14,124 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1125 transitions. [2024-11-14 03:33:14,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 03:33:14,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:14,125 INFO L215 NwaCegarLoop]: trace histogram [12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:14,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-14 03:33:14,125 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:33:14,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:14,126 INFO L85 PathProgramCache]: Analyzing trace with hash -737821334, now seen corresponding path program 1 times [2024-11-14 03:33:14,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:14,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607549982] [2024-11-14 03:33:14,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:14,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-14 03:33:14,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:14,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607549982] [2024-11-14 03:33:14,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607549982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:33:14,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:33:14,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:33:14,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621141021] [2024-11-14 03:33:14,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:33:14,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:33:14,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:14,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:33:14,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:33:14,180 INFO L87 Difference]: Start difference. First operand 906 states and 1125 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:33:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:14,394 INFO L93 Difference]: Finished difference Result 909 states and 1127 transitions. [2024-11-14 03:33:14,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:33:14,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2024-11-14 03:33:14,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:14,398 INFO L225 Difference]: With dead ends: 909 [2024-11-14 03:33:14,398 INFO L226 Difference]: Without dead ends: 903 [2024-11-14 03:33:14,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:33:14,399 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:14,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 56 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:33:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-14 03:33:14,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 780. [2024-11-14 03:33:14,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 639 states have (on average 1.1408450704225352) internal successors, (729), 656 states have internal predecessors, (729), 107 states have call successors, (107), 21 states have call predecessors, (107), 21 states have return successors, (107), 102 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-14 03:33:14,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 943 transitions. [2024-11-14 03:33:14,502 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 943 transitions. Word has length 107 [2024-11-14 03:33:14,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:14,502 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 943 transitions. [2024-11-14 03:33:14,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:33:14,503 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 943 transitions. [2024-11-14 03:33:14,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-14 03:33:14,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:14,505 INFO L215 NwaCegarLoop]: trace histogram [14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:14,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-14 03:33:14,505 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:33:14,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:14,505 INFO L85 PathProgramCache]: Analyzing trace with hash -786666370, now seen corresponding path program 1 times [2024-11-14 03:33:14,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:14,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638032267] [2024-11-14 03:33:14,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:14,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 03:33:14,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:14,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638032267] [2024-11-14 03:33:14,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638032267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:14,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022464072] [2024-11-14 03:33:14,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:14,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:14,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:14,659 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:14,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 03:33:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:14,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:33:14,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:14,824 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-14 03:33:14,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:33:14,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022464072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:33:14,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:33:14,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-14 03:33:14,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111109490] [2024-11-14 03:33:14,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:33:14,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:33:14,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:14,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:33:14,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:33:14,826 INFO L87 Difference]: Start difference. First operand 780 states and 943 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 03:33:15,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:15,249 INFO L93 Difference]: Finished difference Result 1312 states and 1629 transitions. [2024-11-14 03:33:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:33:15,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 120 [2024-11-14 03:33:15,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:15,252 INFO L225 Difference]: With dead ends: 1312 [2024-11-14 03:33:15,252 INFO L226 Difference]: Without dead ends: 800 [2024-11-14 03:33:15,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:33:15,253 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 41 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:15,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 124 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:33:15,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-14 03:33:15,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 725. [2024-11-14 03:33:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 599 states have (on average 1.1585976627712855) internal successors, (694), 614 states have internal predecessors, (694), 96 states have call successors, (96), 17 states have call predecessors, (96), 17 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-14 03:33:15,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 886 transitions. [2024-11-14 03:33:15,335 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 886 transitions. Word has length 120 [2024-11-14 03:33:15,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:15,336 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 886 transitions. [2024-11-14 03:33:15,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 03:33:15,336 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 886 transitions. [2024-11-14 03:33:15,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-14 03:33:15,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:15,337 INFO L215 NwaCegarLoop]: trace histogram [14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:15,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 03:33:15,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:15,538 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:33:15,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:15,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2055313164, now seen corresponding path program 2 times [2024-11-14 03:33:15,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:15,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384479596] [2024-11-14 03:33:15,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:15,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:15,693 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 03:33:15,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:15,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384479596] [2024-11-14 03:33:15,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384479596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:15,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148885303] [2024-11-14 03:33:15,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:33:15,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:15,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:15,698 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:15,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 03:33:15,769 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:33:15,769 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:33:15,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:33:15,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-14 03:33:16,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:33:16,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148885303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:16,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1983460399] [2024-11-14 03:33:16,867 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:33:16,867 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:33:16,867 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:33:16,867 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:33:16,868 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:33:48,053 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:33:48,054 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:33:54,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1983460399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:33:54,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:33:54,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [6, 7] total 47 [2024-11-14 03:33:54,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199981882] [2024-11-14 03:33:54,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:33:54,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-14 03:33:54,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:54,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-14 03:33:54,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=2315, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 03:33:54,152 INFO L87 Difference]: Start difference. First operand 725 states and 886 transitions. Second operand has 37 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:33:59,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:59,258 INFO L93 Difference]: Finished difference Result 825 states and 983 transitions. [2024-11-14 03:33:59,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-14 03:33:59,258 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 120 [2024-11-14 03:33:59,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:59,262 INFO L225 Difference]: With dead ends: 825 [2024-11-14 03:33:59,263 INFO L226 Difference]: Without dead ends: 787 [2024-11-14 03:33:59,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 233 SyntacticMatches, 12 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2516 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1355, Invalid=5287, Unknown=0, NotChecked=0, Total=6642 [2024-11-14 03:33:59,264 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 267 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:59,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 143 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-14 03:33:59,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-11-14 03:33:59,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 702. [2024-11-14 03:33:59,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 574 states have (on average 1.1236933797909407) internal successors, (645), 589 states have internal predecessors, (645), 92 states have call successors, (92), 23 states have call predecessors, (92), 23 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-14 03:33:59,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 829 transitions. [2024-11-14 03:33:59,367 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 829 transitions. Word has length 120 [2024-11-14 03:33:59,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:59,368 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 829 transitions. [2024-11-14 03:33:59,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:33:59,368 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 829 transitions. [2024-11-14 03:33:59,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-14 03:33:59,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:59,370 INFO L215 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:59,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 03:33:59,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:59,574 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:33:59,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:59,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2114452671, now seen corresponding path program 1 times [2024-11-14 03:33:59,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:59,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766659078] [2024-11-14 03:33:59,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:59,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:59,995 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 2 proven. 152 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-14 03:33:59,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:59,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766659078] [2024-11-14 03:33:59,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766659078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:59,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389722770] [2024-11-14 03:33:59,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:59,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:59,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:34:00,000 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:34:00,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 03:34:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:00,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:34:00,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:34:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 2 proven. 448 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 03:34:00,365 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:34:00,882 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 2 proven. 152 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-14 03:34:00,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389722770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:34:00,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [517367475] [2024-11-14 03:34:00,883 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:34:00,884 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:34:00,884 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:34:00,884 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:34:00,884 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:34:27,101 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:34:27,102 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:34:32,304 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53955#(exists ((|v_ULTIMATE.start_main_~r~0#1_148| Int) (|v_ULTIMATE.start_main_~b~0#1_194| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= ~counter~0 2147483647) (<= (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_194|) |v_ULTIMATE.start_main_~r~0#1_148|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-14 03:34:32,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:34:32,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:34:32,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 16] total 33 [2024-11-14 03:34:32,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539723750] [2024-11-14 03:34:32,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:34:32,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 03:34:32,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:32,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 03:34:32,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=4283, Unknown=0, NotChecked=0, Total=4830 [2024-11-14 03:34:32,309 INFO L87 Difference]: Start difference. First operand 702 states and 829 transitions. Second operand has 33 states, 33 states have (on average 6.909090909090909) internal successors, (228), 33 states have internal predecessors, (228), 12 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 12 states have call predecessors, (57), 12 states have call successors, (57) [2024-11-14 03:34:33,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:34:33,521 INFO L93 Difference]: Finished difference Result 1412 states and 1673 transitions. [2024-11-14 03:34:33,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-14 03:34:33,522 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 6.909090909090909) internal successors, (228), 33 states have internal predecessors, (228), 12 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 12 states have call predecessors, (57), 12 states have call successors, (57) Word has length 166 [2024-11-14 03:34:33,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:34:33,526 INFO L225 Difference]: With dead ends: 1412 [2024-11-14 03:34:33,526 INFO L226 Difference]: Without dead ends: 1173 [2024-11-14 03:34:33,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 431 SyntacticMatches, 14 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5123 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=1306, Invalid=9406, Unknown=0, NotChecked=0, Total=10712 [2024-11-14 03:34:33,530 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 247 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:34:33,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 706 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:34:33,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2024-11-14 03:34:33,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1018. [2024-11-14 03:34:33,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 834 states have (on average 1.0971223021582734) internal successors, (915), 849 states have internal predecessors, (915), 136 states have call successors, (136), 35 states have call predecessors, (136), 35 states have return successors, (136), 133 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-14 03:34:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1187 transitions. [2024-11-14 03:34:33,638 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1187 transitions. Word has length 166 [2024-11-14 03:34:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:34:33,638 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1187 transitions. [2024-11-14 03:34:33,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.909090909090909) internal successors, (228), 33 states have internal predecessors, (228), 12 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 12 states have call predecessors, (57), 12 states have call successors, (57) [2024-11-14 03:34:33,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1187 transitions. [2024-11-14 03:34:33,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-14 03:34:33,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:34:33,641 INFO L215 NwaCegarLoop]: trace histogram [24, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 03:34:33,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-14 03:34:33,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 03:34:33,845 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:34:33,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:34:33,845 INFO L85 PathProgramCache]: Analyzing trace with hash -341157749, now seen corresponding path program 2 times [2024-11-14 03:34:33,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:34:33,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598117762] [2024-11-14 03:34:33,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:33,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:34:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 102 proven. 148 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-11-14 03:34:34,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:34:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598117762] [2024-11-14 03:34:34,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598117762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:34:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822944596] [2024-11-14 03:34:34,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:34:34,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:34:34,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:34:34,122 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:34:34,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 03:34:34,218 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:34:34,218 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:34:34,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:34:34,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:34:34,809 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 120 proven. 102 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2024-11-14 03:34:34,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:34:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2024-11-14 03:34:35,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822944596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:34:35,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [162900759] [2024-11-14 03:34:35,345 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:34:35,345 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:34:35,345 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:34:35,345 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:34:35,345 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:35:03,501 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:35:03,503 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:35:11,442 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '58354#(exists ((|v_ULTIMATE.start_main_~r~0#1_166| Int) (|v_ULTIMATE.start_main_~b~0#1_219| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_219|) |v_ULTIMATE.start_main_~r~0#1_166|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-14 03:35:11,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:35:11,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:35:11,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-14 03:35:11,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718020351] [2024-11-14 03:35:11,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:35:11,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 03:35:11,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:11,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 03:35:11,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=3166, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 03:35:11,445 INFO L87 Difference]: Start difference. First operand 1018 states and 1187 transitions. Second operand has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 16 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 16 states have call predecessors, (60), 16 states have call successors, (60) [2024-11-14 03:35:17,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:17,185 INFO L93 Difference]: Finished difference Result 3105 states and 3814 transitions. [2024-11-14 03:35:17,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-14 03:35:17,185 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 16 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 16 states have call predecessors, (60), 16 states have call successors, (60) Word has length 209 [2024-11-14 03:35:17,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:17,193 INFO L225 Difference]: With dead ends: 3105 [2024-11-14 03:35:17,193 INFO L226 Difference]: Without dead ends: 2628 [2024-11-14 03:35:17,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 561 SyntacticMatches, 15 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5787 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=2254, Invalid=12508, Unknown=0, NotChecked=0, Total=14762 [2024-11-14 03:35:17,198 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 2170 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:17,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 1818 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 2878 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 03:35:17,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2024-11-14 03:35:17,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2049. [2024-11-14 03:35:17,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1710 states have (on average 1.1251461988304094) internal successors, (1924), 1730 states have internal predecessors, (1924), 291 states have call successors, (291), 35 states have call predecessors, (291), 35 states have return successors, (291), 283 states have call predecessors, (291), 291 states have call successors, (291) [2024-11-14 03:35:17,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2506 transitions. [2024-11-14 03:35:17,449 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2506 transitions. Word has length 209 [2024-11-14 03:35:17,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:17,450 INFO L471 AbstractCegarLoop]: Abstraction has 2049 states and 2506 transitions. [2024-11-14 03:35:17,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 16 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 16 states have call predecessors, (60), 16 states have call successors, (60) [2024-11-14 03:35:17,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2506 transitions. [2024-11-14 03:35:17,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-14 03:35:17,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:17,454 INFO L215 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2024-11-14 03:35:17,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 03:35:17,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-14 03:35:17,655 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:35:17,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:17,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1874799958, now seen corresponding path program 1 times [2024-11-14 03:35:17,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:17,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273885413] [2024-11-14 03:35:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:17,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:18,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2024-11-14 03:35:18,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:18,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273885413] [2024-11-14 03:35:18,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273885413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:35:18,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492649697] [2024-11-14 03:35:18,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:18,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:35:18,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:35:18,064 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:35:18,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 03:35:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:18,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:35:18,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 622 proven. 48 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2024-11-14 03:35:18,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:35:18,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 230 proven. 48 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2024-11-14 03:35:18,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492649697] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:35:18,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [400687001] [2024-11-14 03:35:18,676 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:35:18,676 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:35:18,676 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:35:18,676 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:35:18,676 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:35:41,650 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:35:41,651 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:35:47,393 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '66247#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~q~0#1_180| Int) (|v_ULTIMATE.start_main_~a~0#1_261| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_261| |v_ULTIMATE.start_main_~q~0#1_180|))) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 03:35:47,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:35:47,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:35:47,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 18 [2024-11-14 03:35:47,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522016099] [2024-11-14 03:35:47,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:35:47,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 03:35:47,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:47,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 03:35:47,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=2616, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 03:35:47,395 INFO L87 Difference]: Start difference. First operand 2049 states and 2506 transitions. Second operand has 18 states, 18 states have (on average 15.444444444444445) internal successors, (278), 18 states have internal predecessors, (278), 15 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-14 03:35:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:49,238 INFO L93 Difference]: Finished difference Result 2725 states and 3326 transitions. [2024-11-14 03:35:49,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-14 03:35:49,239 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.444444444444445) internal successors, (278), 18 states have internal predecessors, (278), 15 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) Word has length 244 [2024-11-14 03:35:49,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:49,246 INFO L225 Difference]: With dead ends: 2725 [2024-11-14 03:35:49,246 INFO L226 Difference]: Without dead ends: 1764 [2024-11-14 03:35:49,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 668 SyntacticMatches, 23 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2912 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=606, Invalid=5400, Unknown=0, NotChecked=0, Total=6006 [2024-11-14 03:35:49,250 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 370 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 1613 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:49,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 874 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1613 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 03:35:49,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-14 03:35:49,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1422. [2024-11-14 03:35:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1177 states have (on average 1.112999150382328) internal successors, (1310), 1194 states have internal predecessors, (1310), 197 states have call successors, (197), 35 states have call predecessors, (197), 35 states have return successors, (197), 192 states have call predecessors, (197), 197 states have call successors, (197) [2024-11-14 03:35:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1704 transitions. [2024-11-14 03:35:49,438 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1704 transitions. Word has length 244 [2024-11-14 03:35:49,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:49,439 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 1704 transitions. [2024-11-14 03:35:49,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.444444444444445) internal successors, (278), 18 states have internal predecessors, (278), 15 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-14 03:35:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1704 transitions. [2024-11-14 03:35:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-14 03:35:49,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:49,442 INFO L215 NwaCegarLoop]: trace histogram [31, 8, 8, 8, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-14 03:35:49,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-14 03:35:49,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:35:49,646 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:35:49,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:49,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1204054052, now seen corresponding path program 2 times [2024-11-14 03:35:49,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:35:49,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421192786] [2024-11-14 03:35:49,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:49,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:35:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 0 proven. 516 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-11-14 03:35:50,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:50,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421192786] [2024-11-14 03:35:50,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421192786] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:35:50,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312922780] [2024-11-14 03:35:50,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:35:50,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:35:50,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:35:50,116 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:35:50,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 03:35:50,192 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:35:50,192 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:35:50,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 03:35:50,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:54,398 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int) (|v_ULTIMATE.start_main_~a~0#1_262| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~a~0#1_262| |ULTIMATE.start_main_~y~0#1|))) (and (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= .cse0 4611686018427387903) (<= (+ (* 2 (* |c_ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) 1) .cse0) (<= |c_ULTIMATE.start_main_~q~0#1| |v_ULTIMATE.start_main_~a~0#1_262|)))) is different from true [2024-11-14 03:35:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 59 proven. 180 refuted. 0 times theorem prover too weak. 1197 trivial. 10 not checked. [2024-11-14 03:35:54,857 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:35:54,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312922780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:35:54,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [538390243] [2024-11-14 03:35:54,992 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:35:54,992 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:35:54,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:35:54,992 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:35:54,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:36:19,670 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:36:19,674 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:37:07,864 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '72281#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~q~0#1_195| Int) (|v_ULTIMATE.start_main_~a~0#1_284| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_284| |v_ULTIMATE.start_main_~q~0#1_195|))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 03:37:07,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:37:07,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:37:07,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2024-11-14 03:37:07,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059585311] [2024-11-14 03:37:07,864 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:37:07,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 03:37:07,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:37:07,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 03:37:07,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=3115, Unknown=6, NotChecked=116, Total=3660 [2024-11-14 03:37:07,867 INFO L87 Difference]: Start difference. First operand 1422 states and 1704 transitions. Second operand has 21 states, 19 states have (on average 13.421052631578947) internal successors, (255), 21 states have internal predecessors, (255), 12 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) [2024-11-14 03:37:09,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:37:11,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:37:13,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:37:18,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:37:20,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:37:26,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:37:31,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:37:33,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:37:35,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:37:48,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:37:48,725 INFO L93 Difference]: Finished difference Result 1684 states and 2016 transitions. [2024-11-14 03:37:48,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-14 03:37:48,726 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 13.421052631578947) internal successors, (255), 21 states have internal predecessors, (255), 12 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) Word has length 267 [2024-11-14 03:37:48,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:37:48,733 INFO L225 Difference]: With dead ends: 1684 [2024-11-14 03:37:48,733 INFO L226 Difference]: Without dead ends: 1683 [2024-11-14 03:37:48,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 472 SyntacticMatches, 27 SemanticMatches, 105 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 5536 ImplicationChecksByTransitivity, 67.3s TimeCoverageRelationStatistics Valid=1251, Invalid=9877, Unknown=6, NotChecked=208, Total=11342 [2024-11-14 03:37:48,737 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 422 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 83 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 601 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:37:48,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 466 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 914 Invalid, 9 Unknown, 601 Unchecked, 25.2s Time] [2024-11-14 03:37:48,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2024-11-14 03:37:49,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1519. [2024-11-14 03:37:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1263 states have (on average 1.1132224861441014) internal successors, (1406), 1280 states have internal predecessors, (1406), 208 states have call successors, (208), 35 states have call predecessors, (208), 35 states have return successors, (208), 203 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-14 03:37:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1822 transitions. [2024-11-14 03:37:49,012 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1822 transitions. Word has length 267 [2024-11-14 03:37:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:37:49,013 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 1822 transitions. [2024-11-14 03:37:49,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 13.421052631578947) internal successors, (255), 21 states have internal predecessors, (255), 12 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 12 states have call predecessors, (43), 12 states have call successors, (43) [2024-11-14 03:37:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1822 transitions. [2024-11-14 03:37:49,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-14 03:37:49,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:37:49,016 INFO L215 NwaCegarLoop]: trace histogram [31, 8, 8, 8, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-14 03:37:49,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-14 03:37:49,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:37:49,217 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:37:49,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:37:49,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1457034165, now seen corresponding path program 1 times [2024-11-14 03:37:49,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:37:49,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778296256] [2024-11-14 03:37:49,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:49,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:37:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:49,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1454 backedges. 12 proven. 512 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-11-14 03:37:49,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:37:49,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778296256] [2024-11-14 03:37:49,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778296256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:37:49,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686840041] [2024-11-14 03:37:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:37:49,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:37:49,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:37:49,961 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:37:49,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 03:37:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:37:50,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 03:37:50,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:37:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1454 backedges. 12 proven. 1360 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-14 03:37:50,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:37:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1454 backedges. 12 proven. 512 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-11-14 03:37:51,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686840041] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:37:51,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [175291914] [2024-11-14 03:37:51,581 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 03:37:51,582 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:37:51,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:37:51,582 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:37:51,582 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:38:17,273 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:38:17,274 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:38:25,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '78016#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~y~0#1_80| Int) (|v_ULTIMATE.start_main_~q~0#1_211| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_211| |v_ULTIMATE.start_main_~y~0#1_80|)) (<= |v_ULTIMATE.start_main_~q~0#1_211| 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~y~0#1_80|) (<= |v_ULTIMATE.start_main_~y~0#1_80| 2147483647))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 03:38:25,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:38:25,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:38:25,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 22] total 45 [2024-11-14 03:38:25,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594809712] [2024-11-14 03:38:25,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:38:25,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-14 03:38:25,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:38:25,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-14 03:38:25,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=777, Invalid=6195, Unknown=0, NotChecked=0, Total=6972 [2024-11-14 03:38:25,666 INFO L87 Difference]: Start difference. First operand 1519 states and 1822 transitions. Second operand has 45 states, 45 states have (on average 8.11111111111111) internal successors, (365), 45 states have internal predecessors, (365), 18 states have call successors, (93), 10 states have call predecessors, (93), 10 states have return successors, (93), 18 states have call predecessors, (93), 18 states have call successors, (93) [2024-11-14 03:38:27,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:38:27,979 INFO L93 Difference]: Finished difference Result 2800 states and 3370 transitions. [2024-11-14 03:38:27,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-14 03:38:27,980 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 8.11111111111111) internal successors, (365), 45 states have internal predecessors, (365), 18 states have call successors, (93), 10 states have call predecessors, (93), 10 states have return successors, (93), 18 states have call predecessors, (93), 18 states have call successors, (93) Word has length 273 [2024-11-14 03:38:27,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:38:27,989 INFO L225 Difference]: With dead ends: 2800 [2024-11-14 03:38:27,989 INFO L226 Difference]: Without dead ends: 2214 [2024-11-14 03:38:27,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 732 SyntacticMatches, 26 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8954 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=2392, Invalid=15430, Unknown=0, NotChecked=0, Total=17822 [2024-11-14 03:38:27,994 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 373 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:38:27,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 898 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:38:27,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-14 03:38:28,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1756. [2024-11-14 03:38:28,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1452 states have (on average 1.1026170798898072) internal successors, (1601), 1469 states have internal predecessors, (1601), 245 states have call successors, (245), 46 states have call predecessors, (245), 46 states have return successors, (245), 240 states have call predecessors, (245), 245 states have call successors, (245) [2024-11-14 03:38:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2091 transitions. [2024-11-14 03:38:28,356 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2091 transitions. Word has length 273 [2024-11-14 03:38:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:38:28,357 INFO L471 AbstractCegarLoop]: Abstraction has 1756 states and 2091 transitions. [2024-11-14 03:38:28,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 8.11111111111111) internal successors, (365), 45 states have internal predecessors, (365), 18 states have call successors, (93), 10 states have call predecessors, (93), 10 states have return successors, (93), 18 states have call predecessors, (93), 18 states have call successors, (93) [2024-11-14 03:38:28,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2091 transitions. [2024-11-14 03:38:28,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-14 03:38:28,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:38:28,360 INFO L215 NwaCegarLoop]: trace histogram [34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:38:28,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-14 03:38:28,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:28,560 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:38:28,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:38:28,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1090991439, now seen corresponding path program 1 times [2024-11-14 03:38:28,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:38:28,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039335620] [2024-11-14 03:38:28,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:28,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:38:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 259 proven. 150 refuted. 0 times theorem prover too weak. 1302 trivial. 0 not checked. [2024-11-14 03:38:28,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:38:28,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039335620] [2024-11-14 03:38:28,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039335620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:38:28,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709384708] [2024-11-14 03:38:28,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:38:28,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:38:28,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:38:28,775 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:38:28,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 03:38:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:38:28,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:38:28,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:38:29,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 857 proven. 187 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2024-11-14 03:38:29,278 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:38:29,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 329 proven. 187 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2024-11-14 03:38:29,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709384708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:38:29,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [545152420] [2024-11-14 03:38:29,780 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:38:29,780 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:38:29,780 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:38:29,780 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:38:29,780 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:39:07,984 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:39:07,985 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:39:18,410 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '85456#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~r~0#1|) (exists ((|v_ULTIMATE.start_main_~b~0#1_318| Int)) (and (<= 4611686018427387904 |v_ULTIMATE.start_main_~b~0#1_318|) (or (< ~counter~0 101) (and (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= 0 (+ 9223372036854775808 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |v_ULTIMATE.start_main_~b~0#1_318|))))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-14 03:39:18,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:39:18,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:39:18,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 16 [2024-11-14 03:39:18,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810393216] [2024-11-14 03:39:18,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:39:18,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 03:39:18,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:39:18,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 03:39:18,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=2327, Unknown=0, NotChecked=0, Total=2652 [2024-11-14 03:39:18,413 INFO L87 Difference]: Start difference. First operand 1756 states and 2091 transitions. Second operand has 16 states, 16 states have (on average 15.5) internal successors, (248), 16 states have internal predecessors, (248), 13 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 13 states have call predecessors, (49), 13 states have call successors, (49) [2024-11-14 03:39:24,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:39:24,272 INFO L93 Difference]: Finished difference Result 3962 states and 4853 transitions. [2024-11-14 03:39:24,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-14 03:39:24,272 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.5) internal successors, (248), 16 states have internal predecessors, (248), 13 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 13 states have call predecessors, (49), 13 states have call successors, (49) Word has length 280 [2024-11-14 03:39:24,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:39:24,282 INFO L225 Difference]: With dead ends: 3962 [2024-11-14 03:39:24,282 INFO L226 Difference]: Without dead ends: 2959 [2024-11-14 03:39:24,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 915 GetRequests, 780 SyntacticMatches, 33 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4013 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=1075, Invalid=9637, Unknown=0, NotChecked=0, Total=10712 [2024-11-14 03:39:24,286 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 861 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 2918 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 3045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:39:24,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1707 Invalid, 3045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2918 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-14 03:39:24,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2024-11-14 03:39:24,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2017. [2024-11-14 03:39:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1675 states have (on average 1.1038805970149255) internal successors, (1849), 1692 states have internal predecessors, (1849), 284 states have call successors, (284), 45 states have call predecessors, (284), 45 states have return successors, (284), 279 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-14 03:39:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2417 transitions. [2024-11-14 03:39:24,604 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2417 transitions. Word has length 280 [2024-11-14 03:39:24,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:39:24,604 INFO L471 AbstractCegarLoop]: Abstraction has 2017 states and 2417 transitions. [2024-11-14 03:39:24,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.5) internal successors, (248), 16 states have internal predecessors, (248), 13 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 13 states have call predecessors, (49), 13 states have call successors, (49) [2024-11-14 03:39:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2417 transitions. [2024-11-14 03:39:24,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-14 03:39:24,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:39:24,607 INFO L215 NwaCegarLoop]: trace histogram [41, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1] [2024-11-14 03:39:24,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-14 03:39:24,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:39:24,808 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:39:24,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:39:24,808 INFO L85 PathProgramCache]: Analyzing trace with hash 682846258, now seen corresponding path program 3 times [2024-11-14 03:39:24,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:39:24,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562790104] [2024-11-14 03:39:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:39:24,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:39:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:39:25,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2489 backedges. 0 proven. 849 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2024-11-14 03:39:25,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:39:25,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562790104] [2024-11-14 03:39:25,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562790104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:39:25,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488375725] [2024-11-14 03:39:25,427 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:39:25,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:39:25,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:39:25,429 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:39:25,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 03:39:25,558 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:39:25,558 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:39:25,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 03:39:25,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:39:26,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2489 backedges. 12 proven. 2379 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-14 03:39:26,460 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:39:27,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2489 backedges. 12 proven. 837 refuted. 0 times theorem prover too weak. 1640 trivial. 0 not checked. [2024-11-14 03:39:27,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488375725] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:39:27,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1051575274] [2024-11-14 03:39:27,917 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:39:27,917 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:39:27,917 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:39:27,917 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:39:27,917 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:39:56,939 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:39:56,940 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:40:06,383 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '95098#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~a~0#1_364| Int) (|v_ULTIMATE.start_main_~q~0#1_244| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_364| |v_ULTIMATE.start_main_~q~0#1_244|))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 03:40:06,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:40:06,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:40:06,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 29, 30] total 72 [2024-11-14 03:40:06,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563318664] [2024-11-14 03:40:06,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:40:06,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-11-14 03:40:06,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:40:06,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-11-14 03:40:06,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1084, Invalid=10688, Unknown=0, NotChecked=0, Total=11772 [2024-11-14 03:40:06,388 INFO L87 Difference]: Start difference. First operand 2017 states and 2417 transitions. Second operand has 72 states, 72 states have (on average 9.722222222222221) internal successors, (700), 72 states have internal predecessors, (700), 39 states have call successors, (123), 14 states have call predecessors, (123), 14 states have return successors, (123), 39 states have call predecessors, (123), 39 states have call successors, (123) [2024-11-14 03:40:18,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:40:18,140 INFO L93 Difference]: Finished difference Result 5204 states and 6229 transitions. [2024-11-14 03:40:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2024-11-14 03:40:18,141 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 9.722222222222221) internal successors, (700), 72 states have internal predecessors, (700), 39 states have call successors, (123), 14 states have call predecessors, (123), 14 states have return successors, (123), 39 states have call predecessors, (123), 39 states have call successors, (123) Word has length 353 [2024-11-14 03:40:18,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:40:18,149 INFO L225 Difference]: With dead ends: 5204 [2024-11-14 03:40:18,149 INFO L226 Difference]: Without dead ends: 4133 [2024-11-14 03:40:18,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1265 GetRequests, 937 SyntacticMatches, 28 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 38560 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=12709, Invalid=78193, Unknown=0, NotChecked=0, Total=90902 [2024-11-14 03:40:18,156 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 2605 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 2008 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2613 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 2008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:40:18,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2613 Valid, 1625 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 2008 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 03:40:18,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2024-11-14 03:40:18,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 3645. [2024-11-14 03:40:18,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3645 states, 3014 states have (on average 1.06635700066357) internal successors, (3214), 3040 states have internal predecessors, (3214), 526 states have call successors, (526), 92 states have call predecessors, (526), 92 states have return successors, (526), 512 states have call predecessors, (526), 526 states have call successors, (526) [2024-11-14 03:40:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3645 states to 3645 states and 4266 transitions. [2024-11-14 03:40:18,759 INFO L78 Accepts]: Start accepts. Automaton has 3645 states and 4266 transitions. Word has length 353 [2024-11-14 03:40:18,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:40:18,760 INFO L471 AbstractCegarLoop]: Abstraction has 3645 states and 4266 transitions. [2024-11-14 03:40:18,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 9.722222222222221) internal successors, (700), 72 states have internal predecessors, (700), 39 states have call successors, (123), 14 states have call predecessors, (123), 14 states have return successors, (123), 39 states have call predecessors, (123), 39 states have call successors, (123) [2024-11-14 03:40:18,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3645 states and 4266 transitions. [2024-11-14 03:40:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2024-11-14 03:40:18,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:40:18,767 INFO L215 NwaCegarLoop]: trace histogram [61, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1] [2024-11-14 03:40:18,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 03:40:18,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:40:18,972 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:40:18,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:40:18,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1026349349, now seen corresponding path program 4 times [2024-11-14 03:40:18,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:40:18,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036986462] [2024-11-14 03:40:18,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:40:18,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:40:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:40:20,200 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 0 proven. 2109 refuted. 0 times theorem prover too weak. 3660 trivial. 0 not checked. [2024-11-14 03:40:20,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:40:20,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036986462] [2024-11-14 03:40:20,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036986462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:40:20,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784741519] [2024-11-14 03:40:20,200 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:40:20,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:40:20,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:40:20,202 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:40:20,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 03:40:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:40:20,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:40:20,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 1695 proven. 1397 refuted. 0 times theorem prover too weak. 2677 trivial. 0 not checked. [2024-11-14 03:40:21,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:40:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 675 proven. 1397 refuted. 0 times theorem prover too weak. 3697 trivial. 0 not checked. [2024-11-14 03:40:22,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784741519] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:40:22,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1312082075] [2024-11-14 03:40:22,840 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:40:22,840 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:40:22,840 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:40:22,841 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:40:22,841 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:40:54,171 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:40:54,172 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:41:08,252 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '109566#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~a~0#1_397| Int) (|v_ULTIMATE.start_main_~q~0#1_261| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_397| |v_ULTIMATE.start_main_~q~0#1_261|))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 03:41:08,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:41:08,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:41:08,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 43 [2024-11-14 03:41:08,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702598273] [2024-11-14 03:41:08,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:41:08,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-14 03:41:08,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:41:08,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-14 03:41:08,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=488, Invalid=5832, Unknown=0, NotChecked=0, Total=6320 [2024-11-14 03:41:08,256 INFO L87 Difference]: Start difference. First operand 3645 states and 4266 transitions. Second operand has 43 states, 43 states have (on average 17.74418604651163) internal successors, (763), 43 states have internal predecessors, (763), 40 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 40 states have call predecessors, (146), 40 states have call successors, (146) [2024-11-14 03:41:20,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:41:20,663 INFO L93 Difference]: Finished difference Result 8538 states and 10332 transitions. [2024-11-14 03:41:20,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-11-14 03:41:20,663 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 17.74418604651163) internal successors, (763), 43 states have internal predecessors, (763), 40 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 40 states have call predecessors, (146), 40 states have call successors, (146) Word has length 518 [2024-11-14 03:41:20,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:41:20,681 INFO L225 Difference]: With dead ends: 8538 [2024-11-14 03:41:20,681 INFO L226 Difference]: Without dead ends: 6060 [2024-11-14 03:41:20,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1669 GetRequests, 1456 SyntacticMatches, 56 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12083 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=2142, Invalid=22980, Unknown=0, NotChecked=0, Total=25122 [2024-11-14 03:41:20,689 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 3087 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 9540 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 4465 SdHoareTripleChecker+Invalid, 10120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 9540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:41:20,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3106 Valid, 4465 Invalid, 10120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [580 Valid, 9540 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-14 03:41:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6060 states. [2024-11-14 03:41:21,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 4525. [2024-11-14 03:41:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4525 states, 3779 states have (on average 1.0939401958189998) internal successors, (4134), 3796 states have internal predecessors, (4134), 652 states have call successors, (652), 81 states have call predecessors, (652), 81 states have return successors, (652), 647 states have call predecessors, (652), 652 states have call successors, (652) [2024-11-14 03:41:21,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4525 states to 4525 states and 5438 transitions. [2024-11-14 03:41:21,492 INFO L78 Accepts]: Start accepts. Automaton has 4525 states and 5438 transitions. Word has length 518 [2024-11-14 03:41:21,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:41:21,492 INFO L471 AbstractCegarLoop]: Abstraction has 4525 states and 5438 transitions. [2024-11-14 03:41:21,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 17.74418604651163) internal successors, (763), 43 states have internal predecessors, (763), 40 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 40 states have call predecessors, (146), 40 states have call successors, (146) [2024-11-14 03:41:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4525 states and 5438 transitions. [2024-11-14 03:41:21,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-14 03:41:21,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:41:21,501 INFO L215 NwaCegarLoop]: trace histogram [68, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2024-11-14 03:41:21,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-14 03:41:21,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:41:21,702 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:41:21,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:41:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash 2132443068, now seen corresponding path program 5 times [2024-11-14 03:41:21,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:41:21,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106462233] [2024-11-14 03:41:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:21,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:41:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:41:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7410 backedges. 0 proven. 2854 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2024-11-14 03:41:23,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:41:23,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106462233] [2024-11-14 03:41:23,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106462233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:41:23,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513311528] [2024-11-14 03:41:23,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:41:23,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:41:23,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:41:23,035 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:41:23,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 03:41:23,122 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 03:41:23,122 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:41:23,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:41:23,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:41:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 7410 backedges. 376 proven. 124 refuted. 0 times theorem prover too weak. 6910 trivial. 0 not checked. [2024-11-14 03:41:23,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:41:24,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513311528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:41:24,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [48087880] [2024-11-14 03:41:24,043 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:41:24,043 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:41:24,043 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:41:24,043 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:41:24,043 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:41:50,395 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:41:50,396 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:42:03,689 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '127528#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~q~0#1_276| Int) (|v_ULTIMATE.start_main_~a~0#1_419| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_419| |v_ULTIMATE.start_main_~q~0#1_276|))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 03:42:03,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:42:03,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:42:03,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 6] total 26 [2024-11-14 03:42:03,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206170543] [2024-11-14 03:42:03,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:42:03,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 03:42:03,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:42:03,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 03:42:03,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=601, Invalid=3821, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 03:42:03,692 INFO L87 Difference]: Start difference. First operand 4525 states and 5438 transitions. Second operand has 27 states, 25 states have (on average 17.64) internal successors, (441), 27 states have internal predecessors, (441), 21 states have call successors, (79), 1 states have call predecessors, (79), 2 states have return successors, (79), 22 states have call predecessors, (79), 21 states have call successors, (79) [2024-11-14 03:42:13,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:42:13,243 INFO L93 Difference]: Finished difference Result 4925 states and 5915 transitions. [2024-11-14 03:42:13,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-14 03:42:13,244 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 17.64) internal successors, (441), 27 states have internal predecessors, (441), 21 states have call successors, (79), 1 states have call predecessors, (79), 2 states have return successors, (79), 22 states have call predecessors, (79), 21 states have call successors, (79) Word has length 574 [2024-11-14 03:42:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:42:13,257 INFO L225 Difference]: With dead ends: 4925 [2024-11-14 03:42:13,257 INFO L226 Difference]: Without dead ends: 4924 [2024-11-14 03:42:13,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1219 GetRequests, 1057 SyntacticMatches, 59 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 7813 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=1582, Invalid=9338, Unknown=0, NotChecked=0, Total=10920 [2024-11-14 03:42:13,259 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 933 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:42:13,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 556 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-14 03:42:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4924 states. [2024-11-14 03:42:14,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4924 to 4575. [2024-11-14 03:42:14,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 3829 states have (on average 1.0914076782449726) internal successors, (4179), 3846 states have internal predecessors, (4179), 652 states have call successors, (652), 81 states have call predecessors, (652), 81 states have return successors, (652), 647 states have call predecessors, (652), 652 states have call successors, (652) [2024-11-14 03:42:14,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 5483 transitions. [2024-11-14 03:42:14,129 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 5483 transitions. Word has length 574 [2024-11-14 03:42:14,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:42:14,129 INFO L471 AbstractCegarLoop]: Abstraction has 4575 states and 5483 transitions. [2024-11-14 03:42:14,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 17.64) internal successors, (441), 27 states have internal predecessors, (441), 21 states have call successors, (79), 1 states have call predecessors, (79), 2 states have return successors, (79), 22 states have call predecessors, (79), 21 states have call successors, (79) [2024-11-14 03:42:14,130 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 5483 transitions. [2024-11-14 03:42:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2024-11-14 03:42:14,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:14,136 INFO L215 NwaCegarLoop]: trace histogram [68, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-14 03:42:14,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-14 03:42:14,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-14 03:42:14,336 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 03:42:14,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:14,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1610386973, now seen corresponding path program 2 times [2024-11-14 03:42:14,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:14,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691007863] [2024-11-14 03:42:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:14,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:42:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 7422 backedges. 20 proven. 2846 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2024-11-14 03:42:16,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:42:16,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691007863] [2024-11-14 03:42:16,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691007863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:42:16,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804399707] [2024-11-14 03:42:16,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:42:16,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:42:16,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:42:16,506 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:42:16,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fce3ae8-1998-4327-805d-83dd596a128e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 03:42:16,649 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 03:42:16,649 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:42:16,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-14 03:42:16,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:42:21,605 INFO L134 CoverageAnalysis]: Checked inductivity of 7422 backedges. 320 proven. 1403 refuted. 0 times theorem prover too weak. 5699 trivial. 0 not checked. [2024-11-14 03:42:21,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:42:22,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804399707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:42:22,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [786577078] [2024-11-14 03:42:22,457 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 03:42:22,457 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:42:22,457 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:42:22,457 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:42:22,457 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:42:47,726 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 03:42:47,727 INFO L180 IcfgInterpreter]: Interpretation finished