./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/cohendiv-ll.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_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/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_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench/cohendiv-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/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_365ef891-6a0f-4157-8da0-4b83aa60f00a/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 601ddeb38cc85433f6271611bfd2617c2fcbf2b89119dbe2c319aedc14aa3b17 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:56:42,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:56:42,368 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:56:42,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:56:42,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:56:42,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:56:42,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:56:42,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:56:42,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:56:42,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:56:42,397 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:56:42,397 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:56:42,397 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:56:42,397 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:56:42,397 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:56:42,397 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:56:42,397 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:56:42,398 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:56:42,398 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:56:42,398 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:56:42,398 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:56:42,398 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:56:42,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:56:42,399 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:56:42,399 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:56:42,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:56:42,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:56:42,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:56:42,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:56:42,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:56:42,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:56:42,404 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:56:42,404 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:56:42,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:56:42,404 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:56:42,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:56:42,404 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:56:42,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:56:42,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:56:42,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:56:42,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:56:42,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:56:42,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:56:42,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:56:42,405 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:56:42,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:56:42,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:56:42,406 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:56:42,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:56:42,406 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_365ef891-6a0f-4157-8da0-4b83aa60f00a/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 -> 601ddeb38cc85433f6271611bfd2617c2fcbf2b89119dbe2c319aedc14aa3b17 [2024-11-14 03:56:42,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:56:42,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:56:42,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:56:42,692 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:56:42,693 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:56:42,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench/cohendiv-ll.c Unable to find full path for "g++" [2024-11-14 03:56:44,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:56:44,890 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:56:44,897 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/sv-benchmarks/c/nla-digbench/cohendiv-ll.c [2024-11-14 03:56:44,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/data/c5d148f59/5277e746802c4d4fa04a76a2585d1a59/FLAG6e2b1fa00 [2024-11-14 03:56:44,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/data/c5d148f59/5277e746802c4d4fa04a76a2585d1a59 [2024-11-14 03:56:44,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:56:44,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:56:44,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:56:44,929 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:56:44,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:56:44,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:56:44" (1/1) ... [2024-11-14 03:56:44,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256a88f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:44, skipping insertion in model container [2024-11-14 03:56:44,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:56:44" (1/1) ... [2024-11-14 03:56:44,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:56:45,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:56:45,133 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:56:45,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:56:45,168 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:56:45,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45 WrapperNode [2024-11-14 03:56:45,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:56:45,169 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:56:45,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:56:45,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:56:45,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,200 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2024-11-14 03:56:45,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:56:45,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:56:45,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:56:45,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:56:45,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:56:45,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:56:45,221 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:56:45,221 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:56:45,222 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (1/1) ... [2024-11-14 03:56:45,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:56:45,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:45,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:56:45,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:56:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:56:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:56:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:56:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:56:45,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:56:45,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:56:45,368 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:56:45,370 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:56:45,790 INFO L? ?]: Removed 64 outVars from TransFormulas that were not future-live. [2024-11-14 03:56:45,790 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:56:45,837 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:56:45,837 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 03:56:45,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:45 BoogieIcfgContainer [2024-11-14 03:56:45,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:56:45,840 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:56:45,840 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:56:45,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:56:45,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:56:44" (1/3) ... [2024-11-14 03:56:45,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39720ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:56:45, skipping insertion in model container [2024-11-14 03:56:45,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:56:45" (2/3) ... [2024-11-14 03:56:45,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39720ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:56:45, skipping insertion in model container [2024-11-14 03:56:45,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:45" (3/3) ... [2024-11-14 03:56:45,848 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll.c [2024-11-14 03:56:45,865 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:56:45,866 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cohendiv-ll.c that has 2 procedures, 76 locations, 1 initial locations, 2 loop locations, and 30 error locations. [2024-11-14 03:56:45,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:56:45,936 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;@3fcfd39b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:56:45,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-14 03:56:45,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 67 states have internal predecessors, (71), 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 03:56:45,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:56:45,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:45,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:56:45,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:45,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:45,954 INFO L85 PathProgramCache]: Analyzing trace with hash 175447, now seen corresponding path program 1 times [2024-11-14 03:56:45,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:45,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371168829] [2024-11-14 03:56:45,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:45,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:46,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328261569] [2024-11-14 03:56:46,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:46,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:46,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:46,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:46,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:56:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:46,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:56:46,140 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:46,179 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 03:56:46,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:56:46,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:46,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371168829] [2024-11-14 03:56:46,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:46,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328261569] [2024-11-14 03:56:46,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328261569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:46,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:46,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:56:46,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560656643] [2024-11-14 03:56:46,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:46,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:56:46,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:46,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:56:46,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:56:46,210 INFO L87 Difference]: Start difference. First operand has 76 states, 37 states have (on average 1.9189189189189189) internal successors, (71), 67 states have internal predecessors, (71), 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 3 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 03:56:46,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:46,386 INFO L93 Difference]: Finished difference Result 175 states and 200 transitions. [2024-11-14 03:56:46,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:56:46,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 03:56:46,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:46,396 INFO L225 Difference]: With dead ends: 175 [2024-11-14 03:56:46,396 INFO L226 Difference]: Without dead ends: 95 [2024-11-14 03:56:46,399 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 03:56:46,405 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 19 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:46,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 137 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:56:46,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-14 03:56:46,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 76. [2024-11-14 03:56:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 39 states have (on average 1.794871794871795) internal successors, (70), 68 states have internal predecessors, (70), 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 03:56:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2024-11-14 03:56:46,468 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 3 [2024-11-14 03:56:46,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:46,469 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2024-11-14 03:56:46,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 03:56:46,470 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2024-11-14 03:56:46,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 03:56:46,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:46,472 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:46,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:56:46,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 03:56:46,673 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:46,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:46,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2133778636, now seen corresponding path program 1 times [2024-11-14 03:56:46,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:46,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733156331] [2024-11-14 03:56:46,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:46,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:46,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [955073087] [2024-11-14 03:56:46,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:46,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:46,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:46,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:46,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:56:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:46,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:56:46,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:46,803 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 03:56:46,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:56:46,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:46,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733156331] [2024-11-14 03:56:46,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:46,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955073087] [2024-11-14 03:56:46,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955073087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:46,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:46,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:56:46,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535961304] [2024-11-14 03:56:46,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:46,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:56:46,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:46,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:56:46,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:56:46,806 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 03:56:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:47,021 INFO L93 Difference]: Finished difference Result 133 states and 154 transitions. [2024-11-14 03:56:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:56:47,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 8 [2024-11-14 03:56:47,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:47,023 INFO L225 Difference]: With dead ends: 133 [2024-11-14 03:56:47,023 INFO L226 Difference]: Without dead ends: 127 [2024-11-14 03:56:47,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 03:56:47,024 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 45 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:47,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 106 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:56:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-14 03:56:47,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 107. [2024-11-14 03:56:47,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 64 states have (on average 1.765625) internal successors, (113), 93 states have internal predecessors, (113), 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 03:56:47,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 137 transitions. [2024-11-14 03:56:47,043 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 137 transitions. Word has length 8 [2024-11-14 03:56:47,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:47,044 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 137 transitions. [2024-11-14 03:56:47,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 03:56:47,044 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 137 transitions. [2024-11-14 03:56:47,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 03:56:47,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:47,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:47,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:56:47,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:47,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:47,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1861870798, now seen corresponding path program 1 times [2024-11-14 03:56:47,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:47,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784061343] [2024-11-14 03:56:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:47,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:47,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045709] [2024-11-14 03:56:47,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:47,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:47,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:47,266 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:47,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:56:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:47,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:56:47,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:47,442 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 03:56:47,442 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:56:47,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:47,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784061343] [2024-11-14 03:56:47,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:47,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045709] [2024-11-14 03:56:47,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:47,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:47,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:56:47,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740247899] [2024-11-14 03:56:47,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:47,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:56:47,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:47,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:56:47,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:56:47,445 INFO L87 Difference]: Start difference. First operand 107 states and 137 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 03:56:47,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:47,625 INFO L93 Difference]: Finished difference Result 126 states and 144 transitions. [2024-11-14 03:56:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:56:47,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2024-11-14 03:56:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:47,630 INFO L225 Difference]: With dead ends: 126 [2024-11-14 03:56:47,630 INFO L226 Difference]: Without dead ends: 123 [2024-11-14 03:56:47,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 03:56:47,631 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 39 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 97 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 03:56:47,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 97 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:56:47,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-14 03:56:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 108. [2024-11-14 03:56:47,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 65 states have (on average 1.7230769230769232) internal successors, (112), 94 states have internal predecessors, (112), 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 03:56:47,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 136 transitions. [2024-11-14 03:56:47,654 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 136 transitions. Word has length 10 [2024-11-14 03:56:47,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:47,655 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 136 transitions. [2024-11-14 03:56:47,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 03:56:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 136 transitions. [2024-11-14 03:56:47,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:56:47,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:47,658 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:47,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:56:47,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:47,859 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:47,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:47,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1883419950, now seen corresponding path program 1 times [2024-11-14 03:56:47,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:47,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479607455] [2024-11-14 03:56:47,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:47,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:47,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132607379] [2024-11-14 03:56:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:47,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:47,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:47,891 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:47,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:56:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:47,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:56:47,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:48,001 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 03:56:48,001 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:56:48,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:48,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479607455] [2024-11-14 03:56:48,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:48,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132607379] [2024-11-14 03:56:48,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132607379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:48,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:48,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:56:48,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761260087] [2024-11-14 03:56:48,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:48,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:56:48,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:48,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:56:48,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:56:48,003 INFO L87 Difference]: Start difference. First operand 108 states and 136 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 03:56:48,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:48,214 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2024-11-14 03:56:48,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:56:48,214 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 03:56:48,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:48,215 INFO L225 Difference]: With dead ends: 126 [2024-11-14 03:56:48,216 INFO L226 Difference]: Without dead ends: 119 [2024-11-14 03:56:48,216 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 03:56:48,220 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 38 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:48,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 100 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:56:48,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-14 03:56:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 105. [2024-11-14 03:56:48,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 62 states have (on average 1.7096774193548387) internal successors, (106), 91 states have internal predecessors, (106), 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 03:56:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2024-11-14 03:56:48,244 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 11 [2024-11-14 03:56:48,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:48,244 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2024-11-14 03:56:48,244 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 03:56:48,245 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2024-11-14 03:56:48,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:56:48,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:48,246 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:48,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:56:48,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:48,451 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:48,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:48,451 INFO L85 PathProgramCache]: Analyzing trace with hash 368412680, now seen corresponding path program 1 times [2024-11-14 03:56:48,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:48,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732979417] [2024-11-14 03:56:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:48,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:48,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512424490] [2024-11-14 03:56:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:48,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:48,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:48,474 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:48,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:56:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:48,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:56:48,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:48,591 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 03:56:48,591 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:56:48,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:48,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732979417] [2024-11-14 03:56:48,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:48,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512424490] [2024-11-14 03:56:48,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512424490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:48,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:48,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:56:48,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896592583] [2024-11-14 03:56:48,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:48,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:56:48,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:48,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:56:48,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:56:48,593 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 03:56:48,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:48,797 INFO L93 Difference]: Finished difference Result 172 states and 238 transitions. [2024-11-14 03:56:48,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:56:48,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 17 [2024-11-14 03:56:48,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:48,800 INFO L225 Difference]: With dead ends: 172 [2024-11-14 03:56:48,800 INFO L226 Difference]: Without dead ends: 166 [2024-11-14 03:56:48,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 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 03:56:48,801 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 101 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 59 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 03:56:48,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 59 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:56:48,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-14 03:56:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 150. [2024-11-14 03:56:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 100 states have (on average 1.62) internal successors, (162), 128 states have internal predecessors, (162), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 03:56:48,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 202 transitions. [2024-11-14 03:56:48,820 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 202 transitions. Word has length 17 [2024-11-14 03:56:48,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:48,820 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 202 transitions. [2024-11-14 03:56:48,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 03:56:48,820 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 202 transitions. [2024-11-14 03:56:48,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 03:56:48,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:48,821 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:48,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 03:56:49,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:49,022 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:49,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:49,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1464108730, now seen corresponding path program 1 times [2024-11-14 03:56:49,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:49,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145258192] [2024-11-14 03:56:49,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:49,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:49,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653939198] [2024-11-14 03:56:49,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:49,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:49,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:49,041 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:49,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:56:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:49,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:56:49,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:49,180 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 03:56:49,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:56:49,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:49,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145258192] [2024-11-14 03:56:49,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:49,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653939198] [2024-11-14 03:56:49,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653939198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:49,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:49,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:56:49,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533950117] [2024-11-14 03:56:49,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:49,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:56:49,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:49,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:56:49,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:56:49,182 INFO L87 Difference]: Start difference. First operand 150 states and 202 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 03:56:49,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:49,468 INFO L93 Difference]: Finished difference Result 214 states and 277 transitions. [2024-11-14 03:56:49,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:56:49,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 18 [2024-11-14 03:56:49,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:49,470 INFO L225 Difference]: With dead ends: 214 [2024-11-14 03:56:49,470 INFO L226 Difference]: Without dead ends: 211 [2024-11-14 03:56:49,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 03:56:49,472 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 111 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:49,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 99 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:56:49,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-14 03:56:49,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 181. [2024-11-14 03:56:49,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 126 states have (on average 1.6111111111111112) internal successors, (203), 154 states have internal predecessors, (203), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:56:49,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 253 transitions. [2024-11-14 03:56:49,511 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 253 transitions. Word has length 18 [2024-11-14 03:56:49,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:49,512 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 253 transitions. [2024-11-14 03:56:49,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 03:56:49,512 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 253 transitions. [2024-11-14 03:56:49,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 03:56:49,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:49,516 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] [2024-11-14 03:56:49,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:56:49,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:49,717 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:49,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:49,717 INFO L85 PathProgramCache]: Analyzing trace with hash -511057685, now seen corresponding path program 1 times [2024-11-14 03:56:49,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:49,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90798566] [2024-11-14 03:56:49,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:49,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:49,974 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 03:56:49,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:49,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90798566] [2024-11-14 03:56:49,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90798566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:49,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:49,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:56:49,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502613545] [2024-11-14 03:56:49,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:49,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:56:49,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:49,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:56:49,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:56:49,976 INFO L87 Difference]: Start difference. First operand 181 states and 253 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 03:56:50,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:50,128 INFO L93 Difference]: Finished difference Result 181 states and 253 transitions. [2024-11-14 03:56:50,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:56:50,129 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), 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 32 [2024-11-14 03:56:50,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:50,130 INFO L225 Difference]: With dead ends: 181 [2024-11-14 03:56:50,130 INFO L226 Difference]: Without dead ends: 179 [2024-11-14 03:56:50,131 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 03:56:50,131 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 85 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 46 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 03:56:50,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 46 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:56:50,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-14 03:56:50,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-14 03:56:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 126 states have (on average 1.5555555555555556) internal successors, (196), 152 states have internal predecessors, (196), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:56:50,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 246 transitions. [2024-11-14 03:56:50,164 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 246 transitions. Word has length 32 [2024-11-14 03:56:50,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:50,164 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 246 transitions. [2024-11-14 03:56:50,164 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), 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 03:56:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 246 transitions. [2024-11-14 03:56:50,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-14 03:56:50,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:50,165 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] [2024-11-14 03:56:50,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:56:50,170 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:50,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:50,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1337081042, now seen corresponding path program 1 times [2024-11-14 03:56:50,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:50,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475593937] [2024-11-14 03:56:50,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:50,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:50,284 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 03:56:50,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:50,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475593937] [2024-11-14 03:56:50,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475593937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:50,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:50,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:56:50,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536893549] [2024-11-14 03:56:50,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:50,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:56:50,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:50,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:56:50,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:56:50,286 INFO L87 Difference]: Start difference. First operand 179 states and 246 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 03:56:50,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:50,510 INFO L93 Difference]: Finished difference Result 215 states and 275 transitions. [2024-11-14 03:56:50,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:56:50,511 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), 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 33 [2024-11-14 03:56:50,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:50,512 INFO L225 Difference]: With dead ends: 215 [2024-11-14 03:56:50,513 INFO L226 Difference]: Without dead ends: 213 [2024-11-14 03:56:50,513 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 03:56:50,513 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 111 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 52 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 03:56:50,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 52 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:56:50,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-14 03:56:50,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 183. [2024-11-14 03:56:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 130 states have (on average 1.5153846153846153) internal successors, (197), 156 states have internal predecessors, (197), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:56:50,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 247 transitions. [2024-11-14 03:56:50,538 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 247 transitions. Word has length 33 [2024-11-14 03:56:50,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:50,538 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 247 transitions. [2024-11-14 03:56:50,539 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), 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 03:56:50,539 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 247 transitions. [2024-11-14 03:56:50,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 03:56:50,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:50,539 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] [2024-11-14 03:56:50,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:56:50,540 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:50,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:50,540 INFO L85 PathProgramCache]: Analyzing trace with hash 739662954, now seen corresponding path program 1 times [2024-11-14 03:56:50,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:50,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950612516] [2024-11-14 03:56:50,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:50,614 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 03:56:50,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:50,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950612516] [2024-11-14 03:56:50,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950612516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:50,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:50,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:56:50,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101200707] [2024-11-14 03:56:50,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:50,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:56:50,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:50,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:56:50,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:56:50,616 INFO L87 Difference]: Start difference. First operand 183 states and 247 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 03:56:50,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:50,682 INFO L93 Difference]: Finished difference Result 189 states and 247 transitions. [2024-11-14 03:56:50,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:56:50,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 35 [2024-11-14 03:56:50,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:50,685 INFO L225 Difference]: With dead ends: 189 [2024-11-14 03:56:50,685 INFO L226 Difference]: Without dead ends: 188 [2024-11-14 03:56:50,686 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 03:56:50,686 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:50,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 112 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:56:50,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-14 03:56:50,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 183. [2024-11-14 03:56:50,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 130 states have (on average 1.5) internal successors, (195), 156 states have internal predecessors, (195), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:56:50,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 245 transitions. [2024-11-14 03:56:50,707 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 245 transitions. Word has length 35 [2024-11-14 03:56:50,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:50,707 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 245 transitions. [2024-11-14 03:56:50,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 03:56:50,707 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 245 transitions. [2024-11-14 03:56:50,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-14 03:56:50,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:50,708 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] [2024-11-14 03:56:50,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:56:50,708 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:50,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:50,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1454715216, now seen corresponding path program 1 times [2024-11-14 03:56:50,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:50,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046445656] [2024-11-14 03:56:50,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:50,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:50,801 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 03:56:50,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:50,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046445656] [2024-11-14 03:56:50,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046445656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:50,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:50,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:56:50,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261889409] [2024-11-14 03:56:50,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:50,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:56:50,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:50,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:56:50,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:56:50,802 INFO L87 Difference]: Start difference. First operand 183 states and 245 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 03:56:50,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:50,891 INFO L93 Difference]: Finished difference Result 183 states and 245 transitions. [2024-11-14 03:56:50,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:56:50,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 36 [2024-11-14 03:56:50,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:50,893 INFO L225 Difference]: With dead ends: 183 [2024-11-14 03:56:50,894 INFO L226 Difference]: Without dead ends: 182 [2024-11-14 03:56:50,894 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 03:56:50,895 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 36 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:50,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 104 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:56:50,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-14 03:56:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-11-14 03:56:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 130 states have (on average 1.476923076923077) internal successors, (192), 155 states have internal predecessors, (192), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:56:50,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 242 transitions. [2024-11-14 03:56:50,912 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 242 transitions. Word has length 36 [2024-11-14 03:56:50,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:50,912 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 242 transitions. [2024-11-14 03:56:50,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 03:56:50,912 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 242 transitions. [2024-11-14 03:56:50,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-14 03:56:50,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:50,913 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] [2024-11-14 03:56:50,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:56:50,913 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:50,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:50,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1454716498, now seen corresponding path program 1 times [2024-11-14 03:56:50,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:50,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725084585] [2024-11-14 03:56:50,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:50,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:51,016 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 03:56:51,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:51,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725084585] [2024-11-14 03:56:51,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725084585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:51,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:51,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:56:51,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434432162] [2024-11-14 03:56:51,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:51,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:56:51,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:51,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:56:51,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:56:51,019 INFO L87 Difference]: Start difference. First operand 182 states and 242 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 03:56:51,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:51,515 INFO L93 Difference]: Finished difference Result 203 states and 254 transitions. [2024-11-14 03:56:51,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:56:51,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 36 [2024-11-14 03:56:51,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:51,517 INFO L225 Difference]: With dead ends: 203 [2024-11-14 03:56:51,518 INFO L226 Difference]: Without dead ends: 202 [2024-11-14 03:56:51,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:56:51,519 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 136 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:51,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 174 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:56:51,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-14 03:56:51,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 182. [2024-11-14 03:56:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 130 states have (on average 1.4461538461538461) internal successors, (188), 155 states have internal predecessors, (188), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:56:51,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 238 transitions. [2024-11-14 03:56:51,535 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 238 transitions. Word has length 36 [2024-11-14 03:56:51,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:51,536 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 238 transitions. [2024-11-14 03:56:51,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 03:56:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 238 transitions. [2024-11-14 03:56:51,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 03:56:51,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:51,537 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] [2024-11-14 03:56:51,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:56:51,537 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:51,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:51,538 INFO L85 PathProgramCache]: Analyzing trace with hash 2146498860, now seen corresponding path program 1 times [2024-11-14 03:56:51,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:51,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289721350] [2024-11-14 03:56:51,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:51,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:51,623 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 03:56:51,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:51,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289721350] [2024-11-14 03:56:51,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289721350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:51,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:51,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:56:51,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142712640] [2024-11-14 03:56:51,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:51,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:56:51,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:51,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:56:51,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:56:51,626 INFO L87 Difference]: Start difference. First operand 182 states and 238 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 03:56:51,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:51,944 INFO L93 Difference]: Finished difference Result 201 states and 251 transitions. [2024-11-14 03:56:51,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:56:51,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 37 [2024-11-14 03:56:51,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:51,947 INFO L225 Difference]: With dead ends: 201 [2024-11-14 03:56:51,948 INFO L226 Difference]: Without dead ends: 199 [2024-11-14 03:56:51,949 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 03:56:51,949 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 46 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:51,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 116 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:56:51,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-14 03:56:51,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 186. [2024-11-14 03:56:51,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 134 states have (on average 1.4328358208955223) internal successors, (192), 159 states have internal predecessors, (192), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:56:51,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 242 transitions. [2024-11-14 03:56:51,968 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 242 transitions. Word has length 37 [2024-11-14 03:56:51,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:51,968 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 242 transitions. [2024-11-14 03:56:51,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 03:56:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 242 transitions. [2024-11-14 03:56:51,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 03:56:51,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:51,970 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] [2024-11-14 03:56:51,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 03:56:51,970 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:51,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:51,972 INFO L85 PathProgramCache]: Analyzing trace with hash -914798065, now seen corresponding path program 1 times [2024-11-14 03:56:51,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:51,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731378365] [2024-11-14 03:56:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:51,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:52,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729333935] [2024-11-14 03:56:52,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:52,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:52,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:52,009 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:52,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:56:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:52,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:56:52,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:52,427 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 03:56:52,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:56:52,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:52,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731378365] [2024-11-14 03:56:52,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:52,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729333935] [2024-11-14 03:56:52,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729333935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:52,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:52,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:56:52,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235455364] [2024-11-14 03:56:52,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:52,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:56:52,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:52,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:56:52,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:56:52,430 INFO L87 Difference]: Start difference. First operand 186 states and 242 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 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 03:56:52,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:52,681 INFO L93 Difference]: Finished difference Result 194 states and 249 transitions. [2024-11-14 03:56:52,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:56:52,682 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), 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 45 [2024-11-14 03:56:52,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:52,684 INFO L225 Difference]: With dead ends: 194 [2024-11-14 03:56:52,684 INFO L226 Difference]: Without dead ends: 186 [2024-11-14 03:56:52,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:56:52,685 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 58 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:52,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 100 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:56:52,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-14 03:56:52,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 173. [2024-11-14 03:56:52,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 129 states have (on average 1.317829457364341) internal successors, (170), 146 states have internal predecessors, (170), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:56:52,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 220 transitions. [2024-11-14 03:56:52,705 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 220 transitions. Word has length 45 [2024-11-14 03:56:52,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:52,705 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 220 transitions. [2024-11-14 03:56:52,705 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), 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 03:56:52,706 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 220 transitions. [2024-11-14 03:56:52,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 03:56:52,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:52,707 INFO L215 NwaCegarLoop]: trace histogram [6, 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] [2024-11-14 03:56:52,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:56:52,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:52,911 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:52,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:52,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1706031113, now seen corresponding path program 1 times [2024-11-14 03:56:52,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:52,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607486566] [2024-11-14 03:56:52,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:52,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:52,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [309644572] [2024-11-14 03:56:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:52,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:52,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:52,933 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:52,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:56:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:53,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:56:53,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:53,375 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 03:56:53,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:56:54,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:54,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607486566] [2024-11-14 03:56:54,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:54,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309644572] [2024-11-14 03:56:54,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309644572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:56:54,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [762524713] [2024-11-14 03:56:54,288 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2024-11-14 03:56:54,288 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:56:54,292 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:56:54,298 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:56:54,299 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:56:56,468 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 03:56:56,470 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:56:57,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [762524713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:57,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:56:57,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 13 [2024-11-14 03:56:57,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513665507] [2024-11-14 03:56:57,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:57,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:56:57,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:57,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:56:57,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:56:57,967 INFO L87 Difference]: Start difference. First operand 173 states and 220 transitions. Second operand has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-14 03:56:58,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:58,823 INFO L93 Difference]: Finished difference Result 191 states and 231 transitions. [2024-11-14 03:56:58,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:56:58,824 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2024-11-14 03:56:58,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:58,825 INFO L225 Difference]: With dead ends: 191 [2024-11-14 03:56:58,825 INFO L226 Difference]: Without dead ends: 177 [2024-11-14 03:56:58,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 77 SyntacticMatches, 16 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:56:58,826 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 90 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:58,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 59 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:56:58,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-14 03:56:58,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 169. [2024-11-14 03:56:58,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 125 states have (on average 1.264) internal successors, (158), 142 states have internal predecessors, (158), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 03:56:58,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 208 transitions. [2024-11-14 03:56:58,843 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 208 transitions. Word has length 46 [2024-11-14 03:56:58,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:58,843 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 208 transitions. [2024-11-14 03:56:58,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-14 03:56:58,844 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 208 transitions. [2024-11-14 03:56:58,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-14 03:56:58,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:58,845 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] [2024-11-14 03:56:58,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-14 03:56:59,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 03:56:59,045 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:56:59,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:59,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1542597794, now seen corresponding path program 1 times [2024-11-14 03:56:59,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:59,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839791554] [2024-11-14 03:56:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:59,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:56:59,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344237573] [2024-11-14 03:56:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:59,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:56:59,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:56:59,065 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:56:59,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:56:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:59,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:56:59,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:59,303 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 03:56:59,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:56:59,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839791554] [2024-11-14 03:56:59,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:56:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344237573] [2024-11-14 03:56:59,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344237573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:56:59,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [331265544] [2024-11-14 03:56:59,674 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-14 03:56:59,674 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:56:59,675 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:56:59,675 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:56:59,675 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:57:03,230 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:57:03,231 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:04,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [331265544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:04,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:57:04,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 19 [2024-11-14 03:57:04,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667848761] [2024-11-14 03:57:04,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:04,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 03:57:04,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:04,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 03:57:04,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:57:04,655 INFO L87 Difference]: Start difference. First operand 169 states and 208 transitions. Second operand has 16 states, 13 states have (on average 2.230769230769231) internal successors, (29), 14 states have internal predecessors, (29), 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 03:57:06,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:06,659 INFO L93 Difference]: Finished difference Result 180 states and 214 transitions. [2024-11-14 03:57:06,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:57:06,660 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.230769230769231) internal successors, (29), 14 states have internal predecessors, (29), 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 48 [2024-11-14 03:57:06,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:06,662 INFO L225 Difference]: With dead ends: 180 [2024-11-14 03:57:06,662 INFO L226 Difference]: Without dead ends: 174 [2024-11-14 03:57:06,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 72 SyntacticMatches, 11 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:57:06,663 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 63 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:06,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 95 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:57:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-14 03:57:06,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 160. [2024-11-14 03:57:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 117 states have (on average 1.2393162393162394) internal successors, (145), 134 states have internal predecessors, (145), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-14 03:57:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 193 transitions. [2024-11-14 03:57:06,685 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 193 transitions. Word has length 48 [2024-11-14 03:57:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:06,685 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 193 transitions. [2024-11-14 03:57:06,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.230769230769231) internal successors, (29), 14 states have internal predecessors, (29), 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 03:57:06,686 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 193 transitions. [2024-11-14 03:57:06,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 03:57:06,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:06,687 INFO L215 NwaCegarLoop]: trace histogram [9, 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 03:57:06,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 03:57:06,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 03:57:06,891 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:57:06,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:06,891 INFO L85 PathProgramCache]: Analyzing trace with hash -184182226, now seen corresponding path program 1 times [2024-11-14 03:57:06,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:06,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011625631] [2024-11-14 03:57:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:06,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:57:07,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011625631] [2024-11-14 03:57:07,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011625631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:07,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133129717] [2024-11-14 03:57:07,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:07,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:07,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:07,063 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:57:07,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:57:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:07,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:57:07,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:57:07,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 03:57:07,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133129717] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:57:07,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1947397841] [2024-11-14 03:57:07,455 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:57:07,455 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:57:07,455 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:57:07,455 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:57:07,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:57:10,393 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:57:10,394 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:12,615 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7206#(and (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~b~0#1|) (exists ((|v_ULTIMATE.start_main_~a~0#1_64| Int) (|v_ULTIMATE.start_main_~q~0#1_58| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= 9223372036854775808 |v_ULTIMATE.start_main_~a~0#1_64|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) |ULTIMATE.start_main_~x~0#1|) (= |v_ULTIMATE.start_main_~q~0#1_58| 0))))' at error location [2024-11-14 03:57:12,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:57:12,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:57:12,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-14 03:57:12,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052427961] [2024-11-14 03:57:12,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:57:12,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:57:12,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:12,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:57:12,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:57:12,620 INFO L87 Difference]: Start difference. First operand 160 states and 193 transitions. Second operand has 11 states, 10 states have (on average 12.4) internal successors, (124), 11 states have internal predecessors, (124), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-14 03:57:13,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:13,212 INFO L93 Difference]: Finished difference Result 397 states and 509 transitions. [2024-11-14 03:57:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:57:13,213 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.4) internal successors, (124), 11 states have internal predecessors, (124), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 68 [2024-11-14 03:57:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:13,215 INFO L225 Difference]: With dead ends: 397 [2024-11-14 03:57:13,215 INFO L226 Difference]: Without dead ends: 396 [2024-11-14 03:57:13,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 167 SyntacticMatches, 12 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:57:13,217 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 265 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:13,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 240 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:57:13,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-14 03:57:13,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 289. [2024-11-14 03:57:13,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 224 states have (on average 1.2232142857142858) internal successors, (274), 241 states have internal predecessors, (274), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 03:57:13,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 366 transitions. [2024-11-14 03:57:13,259 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 366 transitions. Word has length 68 [2024-11-14 03:57:13,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:13,260 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 366 transitions. [2024-11-14 03:57:13,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.4) internal successors, (124), 11 states have internal predecessors, (124), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-14 03:57:13,260 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 366 transitions. [2024-11-14 03:57:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:57:13,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:13,261 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] [2024-11-14 03:57:13,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:57:13,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 03:57:13,466 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:57:13,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:13,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1995556259, now seen corresponding path program 1 times [2024-11-14 03:57:13,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:13,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640830236] [2024-11-14 03:57:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:13,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-14 03:57:13,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:13,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640830236] [2024-11-14 03:57:13,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640830236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:13,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:57:13,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:57:13,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522678607] [2024-11-14 03:57:13,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:13,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:57:13,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:13,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:57:13,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:57:13,576 INFO L87 Difference]: Start difference. First operand 289 states and 366 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 03:57:13,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:13,972 INFO L93 Difference]: Finished difference Result 289 states and 366 transitions. [2024-11-14 03:57:13,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:57:13,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2024-11-14 03:57:13,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:13,975 INFO L225 Difference]: With dead ends: 289 [2024-11-14 03:57:13,975 INFO L226 Difference]: Without dead ends: 288 [2024-11-14 03:57:13,975 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 03:57:13,976 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:13,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 38 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:57:13,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-14 03:57:14,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-11-14 03:57:14,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 224 states have (on average 1.2142857142857142) internal successors, (272), 240 states have internal predecessors, (272), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 03:57:14,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 364 transitions. [2024-11-14 03:57:14,013 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 364 transitions. Word has length 71 [2024-11-14 03:57:14,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:14,013 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 364 transitions. [2024-11-14 03:57:14,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 03:57:14,014 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 364 transitions. [2024-11-14 03:57:14,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-14 03:57:14,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:14,015 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] [2024-11-14 03:57:14,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 03:57:14,015 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:57:14,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:14,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1117842709, now seen corresponding path program 1 times [2024-11-14 03:57:14,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:14,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877349604] [2024-11-14 03:57:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:14,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:14,153 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:57:14,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:14,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877349604] [2024-11-14 03:57:14,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877349604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:14,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013541942] [2024-11-14 03:57:14,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:14,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:14,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:14,156 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:57:14,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:57:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:14,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:57:14,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:14,345 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:57:14,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:57:14,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013541942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:57:14,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2031547909] [2024-11-14 03:57:14,548 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-14 03:57:14,549 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:57:14,549 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:57:14,549 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:57:14,549 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:57:18,826 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 03:57:18,828 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:22,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2031547909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:22,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:57:22,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 5, 5] total 17 [2024-11-14 03:57:22,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17924438] [2024-11-14 03:57:22,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:22,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:57:22,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:57:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:57:22,171 INFO L87 Difference]: Start difference. First operand 288 states and 364 transitions. Second operand has 11 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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 03:57:22,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:22,901 INFO L93 Difference]: Finished difference Result 295 states and 373 transitions. [2024-11-14 03:57:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:57:22,902 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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 73 [2024-11-14 03:57:22,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:22,903 INFO L225 Difference]: With dead ends: 295 [2024-11-14 03:57:22,904 INFO L226 Difference]: Without dead ends: 294 [2024-11-14 03:57:22,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 175 SyntacticMatches, 32 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:57:22,904 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 66 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:22,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 64 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:57:22,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-14 03:57:22,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 287. [2024-11-14 03:57:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 224 states have (on average 1.2053571428571428) internal successors, (270), 239 states have internal predecessors, (270), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 03:57:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 362 transitions. [2024-11-14 03:57:22,948 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 362 transitions. Word has length 73 [2024-11-14 03:57:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:22,948 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 362 transitions. [2024-11-14 03:57:22,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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 03:57:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 362 transitions. [2024-11-14 03:57:22,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:57:22,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:22,950 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, 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 03:57:22,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 03:57:23,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 03:57:23,150 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:57:23,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:23,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2124265115, now seen corresponding path program 1 times [2024-11-14 03:57:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:23,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137126613] [2024-11-14 03:57:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:23,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:57:23,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214987827] [2024-11-14 03:57:23,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:23,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:23,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:23,169 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:57:23,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:57:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:23,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:57:23,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:57:23,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:23,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:23,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137126613] [2024-11-14 03:57:23,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:57:23,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214987827] [2024-11-14 03:57:23,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214987827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:23,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1456523538] [2024-11-14 03:57:23,871 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:57:23,871 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:57:23,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:57:23,872 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:57:23,872 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:57:53,757 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:57:53,762 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:59,957 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10212#(and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (exists ((|v_ULTIMATE.start_main_~q~0#1_80| Int) (|v_ULTIMATE.start_main_~y~0#1_72| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_80| 9223372036854775807) (<= |v_ULTIMATE.start_main_~y~0#1_72| 2147483647) (<= 1 |v_ULTIMATE.start_main_~y~0#1_72|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_80| |v_ULTIMATE.start_main_~y~0#1_72|)))) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)))' at error location [2024-11-14 03:57:59,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:57:59,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:57:59,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 03:57:59,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904122447] [2024-11-14 03:57:59,957 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:57:59,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:57:59,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:59,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:57:59,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1175, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:57:59,959 INFO L87 Difference]: Start difference. First operand 287 states and 362 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 03:58:00,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:00,785 INFO L93 Difference]: Finished difference Result 382 states and 493 transitions. [2024-11-14 03:58:00,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:58:00,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 76 [2024-11-14 03:58:00,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:00,788 INFO L225 Difference]: With dead ends: 382 [2024-11-14 03:58:00,788 INFO L226 Difference]: Without dead ends: 379 [2024-11-14 03:58:00,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 125 SyntacticMatches, 6 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=238, Invalid=1244, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 03:58:00,790 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 97 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:00,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 230 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:58:00,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-14 03:58:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 360. [2024-11-14 03:58:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 284 states have (on average 1.2359154929577465) internal successors, (351), 299 states have internal predecessors, (351), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-14 03:58:00,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 469 transitions. [2024-11-14 03:58:00,855 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 469 transitions. Word has length 76 [2024-11-14 03:58:00,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:00,856 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 469 transitions. [2024-11-14 03:58:00,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 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 03:58:00,856 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 469 transitions. [2024-11-14 03:58:00,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:58:00,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:00,858 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, 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 03:58:00,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:01,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:01,058 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:58:01,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:01,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1427709067, now seen corresponding path program 1 times [2024-11-14 03:58:01,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:01,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094394301] [2024-11-14 03:58:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:01,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:58:01,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094394301] [2024-11-14 03:58:01,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094394301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:01,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:01,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:58:01,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149014092] [2024-11-14 03:58:01,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:01,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:58:01,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:01,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:58:01,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:58:01,273 INFO L87 Difference]: Start difference. First operand 360 states and 469 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 03:58:02,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:02,627 INFO L93 Difference]: Finished difference Result 360 states and 469 transitions. [2024-11-14 03:58:02,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:58:02,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 77 [2024-11-14 03:58:02,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:02,630 INFO L225 Difference]: With dead ends: 360 [2024-11-14 03:58:02,630 INFO L226 Difference]: Without dead ends: 356 [2024-11-14 03:58:02,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:58:02,632 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:02,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 110 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:58:02,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-14 03:58:02,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2024-11-14 03:58:02,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 282 states have (on average 1.1914893617021276) internal successors, (336), 293 states have internal predecessors, (336), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-14 03:58:02,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 454 transitions. [2024-11-14 03:58:02,708 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 454 transitions. Word has length 77 [2024-11-14 03:58:02,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:02,708 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 454 transitions. [2024-11-14 03:58:02,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 03:58:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 454 transitions. [2024-11-14 03:58:02,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:58:02,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:02,710 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, 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 03:58:02,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 03:58:02,711 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:58:02,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:02,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1309308057, now seen corresponding path program 1 times [2024-11-14 03:58:02,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:02,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850804298] [2024-11-14 03:58:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:02,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:58:02,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830637811] [2024-11-14 03:58:02,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:02,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:02,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:02,748 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:02,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:58:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:02,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:58:02,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:03,836 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:58:03,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:08,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:08,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850804298] [2024-11-14 03:58:08,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:58:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830637811] [2024-11-14 03:58:08,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830637811] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:58:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1121152370] [2024-11-14 03:58:08,811 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:58:08,811 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:58:08,811 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:58:08,812 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:58:08,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:58:36,820 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 03:58:36,822 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:58:43,241 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12482#(and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (exists ((|v_ULTIMATE.start_main_~q~0#1_98| Int) (|v_ULTIMATE.start_main_~y~0#1_73| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_98| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~y~0#1_73| 2147483647) (<= 1 |v_ULTIMATE.start_main_~y~0#1_73|) (<= (* |v_ULTIMATE.start_main_~q~0#1_98| |v_ULTIMATE.start_main_~y~0#1_73|) 9223372036854775807))))' at error location [2024-11-14 03:58:43,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:58:43,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:58:43,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 03:58:43,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167917552] [2024-11-14 03:58:43,241 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:58:43,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:58:43,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:43,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:58:43,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1562, Unknown=2, NotChecked=0, Total=1806 [2024-11-14 03:58:43,242 INFO L87 Difference]: Start difference. First operand 354 states and 454 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 03:58:44,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:44,072 INFO L93 Difference]: Finished difference Result 368 states and 462 transitions. [2024-11-14 03:58:44,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:58:44,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 78 [2024-11-14 03:58:44,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:44,075 INFO L225 Difference]: With dead ends: 368 [2024-11-14 03:58:44,075 INFO L226 Difference]: Without dead ends: 361 [2024-11-14 03:58:44,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 173 SyntacticMatches, 6 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=242, Invalid=1562, Unknown=2, NotChecked=0, Total=1806 [2024-11-14 03:58:44,077 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 66 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:44,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 170 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:58:44,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-14 03:58:44,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 352. [2024-11-14 03:58:44,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 280 states have (on average 1.175) internal successors, (329), 291 states have internal predecessors, (329), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-14 03:58:44,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 447 transitions. [2024-11-14 03:58:44,132 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 447 transitions. Word has length 78 [2024-11-14 03:58:44,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:44,132 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 447 transitions. [2024-11-14 03:58:44,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 03:58:44,132 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 447 transitions. [2024-11-14 03:58:44,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:58:44,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:44,133 INFO L215 NwaCegarLoop]: trace histogram [11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:44,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:58:44,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:44,337 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:58:44,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:44,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1815423259, now seen corresponding path program 1 times [2024-11-14 03:58:44,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:44,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33210102] [2024-11-14 03:58:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:44,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:44,480 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-14 03:58:44,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:44,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33210102] [2024-11-14 03:58:44,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33210102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:44,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:44,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:58:44,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324016964] [2024-11-14 03:58:44,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:44,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:58:44,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:44,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:58:44,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:44,482 INFO L87 Difference]: Start difference. First operand 352 states and 447 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 03:58:45,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:45,481 INFO L93 Difference]: Finished difference Result 473 states and 598 transitions. [2024-11-14 03:58:45,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:58:45,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 85 [2024-11-14 03:58:45,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:45,483 INFO L225 Difference]: With dead ends: 473 [2024-11-14 03:58:45,484 INFO L226 Difference]: Without dead ends: 313 [2024-11-14 03:58:45,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:58:45,487 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 29 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:45,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 89 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:58:45,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-14 03:58:45,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 308. [2024-11-14 03:58:45,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 244 states have (on average 1.2008196721311475) internal successors, (293), 255 states have internal predecessors, (293), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 03:58:45,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 395 transitions. [2024-11-14 03:58:45,532 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 395 transitions. Word has length 85 [2024-11-14 03:58:45,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:45,532 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 395 transitions. [2024-11-14 03:58:45,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 03:58:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 395 transitions. [2024-11-14 03:58:45,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:58:45,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:45,535 INFO L215 NwaCegarLoop]: trace histogram [11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:45,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 03:58:45,535 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:58:45,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:45,535 INFO L85 PathProgramCache]: Analyzing trace with hash -680599315, now seen corresponding path program 2 times [2024-11-14 03:58:45,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:45,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318965409] [2024-11-14 03:58:45,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:45,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:58:45,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706626778] [2024-11-14 03:58:45,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:58:45,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:45,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:45,563 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:45,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:58:45,610 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-14 03:58:45,610 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:58:45,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:58:45,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:45,908 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-14 03:58:45,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:58:45,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:45,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318965409] [2024-11-14 03:58:45,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:58:45,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706626778] [2024-11-14 03:58:45,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706626778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:45,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:45,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:58:45,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019431051] [2024-11-14 03:58:45,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:45,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:58:45,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:45,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:58:45,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:58:45,912 INFO L87 Difference]: Start difference. First operand 308 states and 395 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:58:46,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:46,172 INFO L93 Difference]: Finished difference Result 314 states and 400 transitions. [2024-11-14 03:58:46,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:58:46,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 85 [2024-11-14 03:58:46,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:46,174 INFO L225 Difference]: With dead ends: 314 [2024-11-14 03:58:46,174 INFO L226 Difference]: Without dead ends: 312 [2024-11-14 03:58:46,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 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 03:58:46,175 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 37 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:46,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 56 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:58:46,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-14 03:58:46,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 308. [2024-11-14 03:58:46,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 244 states have (on average 1.1762295081967213) internal successors, (287), 255 states have internal predecessors, (287), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 03:58:46,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 389 transitions. [2024-11-14 03:58:46,222 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 389 transitions. Word has length 85 [2024-11-14 03:58:46,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:46,222 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 389 transitions. [2024-11-14 03:58:46,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:58:46,223 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 389 transitions. [2024-11-14 03:58:46,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-14 03:58:46,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:46,226 INFO L215 NwaCegarLoop]: trace histogram [14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:46,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:46,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:46,427 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:58:46,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:46,427 INFO L85 PathProgramCache]: Analyzing trace with hash -996617791, now seen corresponding path program 2 times [2024-11-14 03:58:46,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:46,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630463229] [2024-11-14 03:58:46,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:46,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:58:46,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678372419] [2024-11-14 03:58:46,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:58:46,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:46,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:46,450 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:46,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 03:58:46,507 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:58:46,507 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:58:46,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:58:46,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:47,494 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-11-14 03:58:47,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:48,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:48,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630463229] [2024-11-14 03:58:48,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:58:48,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678372419] [2024-11-14 03:58:48,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678372419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:58:48,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1460782267] [2024-11-14 03:58:48,411 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:58:48,411 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:58:48,411 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:58:48,411 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:58:48,411 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:59:04,586 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 03:59:04,588 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:59:11,430 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15744#(exists ((|v_ULTIMATE.start_main_~y~0#1_76| Int) (|v_ULTIMATE.start_main_~q~0#1_115| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= |v_ULTIMATE.start_main_~y~0#1_76| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_76|) (<= |v_ULTIMATE.start_main_~q~0#1_115| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_115| |v_ULTIMATE.start_main_~y~0#1_76|)) (<= 0 (+ 4611686018427387903 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-14 03:59:11,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:59:11,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:59:11,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 03:59:11,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704971907] [2024-11-14 03:59:11,431 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:59:11,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:59:11,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:59:11,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:59:11,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=1458, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 03:59:11,433 INFO L87 Difference]: Start difference. First operand 308 states and 389 transitions. Second operand has 7 states, 5 states have (on average 8.0) internal successors, (40), 7 states have internal predecessors, (40), 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 03:59:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:12,286 INFO L93 Difference]: Finished difference Result 384 states and 486 transitions. [2024-11-14 03:59:12,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:59:12,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 7 states have internal predecessors, (40), 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 106 [2024-11-14 03:59:12,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:12,289 INFO L225 Difference]: With dead ends: 384 [2024-11-14 03:59:12,289 INFO L226 Difference]: Without dead ends: 381 [2024-11-14 03:59:12,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 178 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 995 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=283, Invalid=1609, Unknown=0, NotChecked=0, Total=1892 [2024-11-14 03:59:12,290 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 92 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:12,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 69 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:59:12,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-14 03:59:12,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 368. [2024-11-14 03:59:12,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 294 states have (on average 1.1734693877551021) internal successors, (345), 305 states have internal predecessors, (345), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-14 03:59:12,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 467 transitions. [2024-11-14 03:59:12,346 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 467 transitions. Word has length 106 [2024-11-14 03:59:12,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:12,347 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 467 transitions. [2024-11-14 03:59:12,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 7 states have internal predecessors, (40), 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 03:59:12,347 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 467 transitions. [2024-11-14 03:59:12,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 03:59:12,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:12,349 INFO L215 NwaCegarLoop]: trace histogram [14, 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] [2024-11-14 03:59:12,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 03:59:12,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:59:12,553 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:59:12,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:12,553 INFO L85 PathProgramCache]: Analyzing trace with hash 28011715, now seen corresponding path program 2 times [2024-11-14 03:59:12,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:12,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717655459] [2024-11-14 03:59:12,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:12,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:59:12,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2021059661] [2024-11-14 03:59:12,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:59:12,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:59:12,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:12,583 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:59:12,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 03:59:12,634 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:59:12,634 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:59:12,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 03:59:12,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:59:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-14 03:59:13,964 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:59:19,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:59:19,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717655459] [2024-11-14 03:59:19,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:59:19,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021059661] [2024-11-14 03:59:19,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021059661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:59:19,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1503612706] [2024-11-14 03:59:19,346 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:59:19,347 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:59:19,347 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:59:19,347 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:59:19,347 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:59:33,187 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 03:59:33,189 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:59:45,500 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17087#(exists ((|v_ULTIMATE.start_main_~r~0#1_123| Int) (|v_ULTIMATE.start_main_~y~0#1_79| Int) (|v_ULTIMATE.start_main_~q~0#1_132| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_123| 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~y~0#1_79|) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_79| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_132| |v_ULTIMATE.start_main_~y~0#1_79|) |v_ULTIMATE.start_main_~r~0#1_123|)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= (* |v_ULTIMATE.start_main_~q~0#1_132| |v_ULTIMATE.start_main_~y~0#1_79|) 9223372036854775807)))' at error location [2024-11-14 03:59:45,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:59:45,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:59:45,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 03:59:45,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164419420] [2024-11-14 03:59:45,500 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:59:45,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:59:45,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:59:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:59:45,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=1930, Unknown=2, NotChecked=0, Total=2256 [2024-11-14 03:59:45,502 INFO L87 Difference]: Start difference. First operand 368 states and 467 transitions. Second operand has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 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 03:59:47,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:47,028 INFO L93 Difference]: Finished difference Result 380 states and 473 transitions. [2024-11-14 03:59:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:59:47,028 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 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 108 [2024-11-14 03:59:47,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:47,030 INFO L225 Difference]: With dead ends: 380 [2024-11-14 03:59:47,030 INFO L226 Difference]: Without dead ends: 373 [2024-11-14 03:59:47,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 178 SyntacticMatches, 9 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=335, Invalid=2015, Unknown=2, NotChecked=0, Total=2352 [2024-11-14 03:59:47,032 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 60 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:47,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 158 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 03:59:47,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-14 03:59:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 295. [2024-11-14 03:59:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 234 states have (on average 1.141025641025641) internal successors, (267), 245 states have internal predecessors, (267), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 03:59:47,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 363 transitions. [2024-11-14 03:59:47,092 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 363 transitions. Word has length 108 [2024-11-14 03:59:47,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:47,092 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 363 transitions. [2024-11-14 03:59:47,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 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 03:59:47,093 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 363 transitions. [2024-11-14 03:59:47,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-14 03:59:47,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:47,094 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:59:47,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 03:59:47,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 03:59:47,295 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 03:59:47,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:47,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1911615280, now seen corresponding path program 3 times [2024-11-14 03:59:47,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:47,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502886365] [2024-11-14 03:59:47,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:47,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:59:47,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525968315] [2024-11-14 03:59:47,318 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:59:47,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:59:47,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:59:47,321 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:59:47,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:59:47,444 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:59:47,444 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:59:47,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:59:47,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:59:48,697 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-14 03:59:48,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:59:49,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:59:49,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502886365] [2024-11-14 03:59:49,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:59:49,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525968315] [2024-11-14 03:59:49,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525968315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:59:49,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [140506501] [2024-11-14 03:59:49,234 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 03:59:49,234 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:59:49,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:59:49,234 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:59:49,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:00:05,024 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:00:05,026 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:00:12,304 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18337#(exists ((|v_ULTIMATE.start_main_~y~0#1_80| Int) (|v_ULTIMATE.start_main_~q~0#1_150| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_150| |v_ULTIMATE.start_main_~y~0#1_80|)) (<= |v_ULTIMATE.start_main_~q~0#1_150| 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_80|) (<= 0 (+ 4611686018427387903 |ULTIMATE.start_main_~r~0#1|)) (<= |v_ULTIMATE.start_main_~y~0#1_80| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-14 04:00:12,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:00:12,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:00:12,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-14 04:00:12,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171101787] [2024-11-14 04:00:12,304 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:00:12,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:00:12,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:00:12,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:00:12,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1470, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 04:00:12,307 INFO L87 Difference]: Start difference. First operand 295 states and 363 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 9 states have internal predecessors, (69), 7 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-14 04:00:13,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:13,219 INFO L93 Difference]: Finished difference Result 397 states and 489 transitions. [2024-11-14 04:00:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:00:13,220 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 9 states have internal predecessors, (69), 7 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 113 [2024-11-14 04:00:13,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:13,221 INFO L225 Difference]: With dead ends: 397 [2024-11-14 04:00:13,221 INFO L226 Difference]: Without dead ends: 395 [2024-11-14 04:00:13,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 192 SyntacticMatches, 9 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=260, Invalid=1546, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 04:00:13,222 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 104 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:13,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 200 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:00:13,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-14 04:00:13,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 338. [2024-11-14 04:00:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 270 states have (on average 1.1296296296296295) internal successors, (305), 281 states have internal predecessors, (305), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 04:00:13,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 415 transitions. [2024-11-14 04:00:13,286 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 415 transitions. Word has length 113 [2024-11-14 04:00:13,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:13,290 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 415 transitions. [2024-11-14 04:00:13,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 9 states have internal predecessors, (69), 7 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-14 04:00:13,290 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 415 transitions. [2024-11-14 04:00:13,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-14 04:00:13,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:13,295 INFO L215 NwaCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:00:13,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-14 04:00:13,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 04:00:13,495 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:00:13,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:13,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1183716750, now seen corresponding path program 3 times [2024-11-14 04:00:13,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:00:13,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792630402] [2024-11-14 04:00:13,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:13,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:00:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:00:13,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027955786] [2024-11-14 04:00:13,523 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:00:13,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:13,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:00:13,525 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:00:13,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 04:00:13,652 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:00:13,652 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:00:13,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 04:00:13,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:15,070 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-14 04:00:15,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:16,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:00:16,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792630402] [2024-11-14 04:00:16,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:00:16,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027955786] [2024-11-14 04:00:16,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027955786] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:00:16,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1060959229] [2024-11-14 04:00:16,346 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:00:16,346 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:00:16,346 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:00:16,346 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:00:16,346 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:00:30,415 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:00:30,417 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:00:40,667 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19880#(exists ((|v_ULTIMATE.start_main_~r~0#1_157| Int) (|v_ULTIMATE.start_main_~q~0#1_169| Int) (|v_ULTIMATE.start_main_~y~0#1_81| Int)) (and (<= (* |v_ULTIMATE.start_main_~q~0#1_169| |v_ULTIMATE.start_main_~y~0#1_81|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~r~0#1_157| 9223372036854775807) (<= |v_ULTIMATE.start_main_~y~0#1_81| 2147483647) (<= 1 |#StackHeapBarrier|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_81|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_169| |v_ULTIMATE.start_main_~y~0#1_81|) |v_ULTIMATE.start_main_~r~0#1_157|)) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))))' at error location [2024-11-14 04:00:40,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:00:40,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:00:40,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 04:00:40,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335466750] [2024-11-14 04:00:40,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:00:40,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 04:00:40,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:00:40,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 04:00:40,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2067, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 04:00:40,669 INFO L87 Difference]: Start difference. First operand 338 states and 415 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 7 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-14 04:00:42,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:42,394 INFO L93 Difference]: Finished difference Result 393 states and 482 transitions. [2024-11-14 04:00:42,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:00:42,395 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 7 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 115 [2024-11-14 04:00:42,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:42,397 INFO L225 Difference]: With dead ends: 393 [2024-11-14 04:00:42,397 INFO L226 Difference]: Without dead ends: 373 [2024-11-14 04:00:42,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 257 SyntacticMatches, 10 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=285, Invalid=2067, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 04:00:42,400 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 68 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:42,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 286 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 04:00:42,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-14 04:00:42,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 322. [2024-11-14 04:00:42,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 256 states have (on average 1.12890625) internal successors, (289), 267 states have internal predecessors, (289), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 04:00:42,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 395 transitions. [2024-11-14 04:00:42,465 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 395 transitions. Word has length 115 [2024-11-14 04:00:42,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:42,465 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 395 transitions. [2024-11-14 04:00:42,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 7 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2024-11-14 04:00:42,466 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 395 transitions. [2024-11-14 04:00:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-14 04:00:42,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:42,471 INFO L215 NwaCegarLoop]: trace histogram [15, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:00:42,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-14 04:00:42,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 04:00:42,675 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:00:42,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:42,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1540486665, now seen corresponding path program 3 times [2024-11-14 04:00:42,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:00:42,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320964780] [2024-11-14 04:00:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:42,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:00:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 28 proven. 39 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-14 04:00:42,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:00:42,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320964780] [2024-11-14 04:00:42,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320964780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:00:42,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765426752] [2024-11-14 04:00:42,939 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:00:42,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:42,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:00:42,942 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:00:42,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 04:00:43,085 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:00:43,085 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:00:43,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:00:43,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:43,431 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 56 proven. 39 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 04:00:43,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:43,826 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 28 proven. 39 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-14 04:00:43,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765426752] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:00:43,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [605614265] [2024-11-14 04:00:43,828 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:00:43,828 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:00:43,828 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:00:43,828 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:00:43,828 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:00:58,141 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:00:58,143 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:01:05,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [605614265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:01:05,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:01:05,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [7, 7, 7] total 38 [2024-11-14 04:01:05,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009049931] [2024-11-14 04:01:05,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:01:05,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-14 04:01:05,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:05,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-14 04:01:05,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1204, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:01:05,407 INFO L87 Difference]: Start difference. First operand 322 states and 395 transitions. Second operand has 32 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:01:17,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:01:20,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:01:22,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:22,498 INFO L93 Difference]: Finished difference Result 323 states and 396 transitions. [2024-11-14 04:01:22,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 04:01:22,499 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 115 [2024-11-14 04:01:22,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:22,501 INFO L225 Difference]: With dead ends: 323 [2024-11-14 04:01:22,501 INFO L226 Difference]: Without dead ends: 310 [2024-11-14 04:01:22,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 298 SyntacticMatches, 16 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=842, Invalid=3580, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 04:01:22,504 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 364 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:22,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 78 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2024-11-14 04:01:22,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-14 04:01:22,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 258. [2024-11-14 04:01:22,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 210 states have (on average 1.0714285714285714) internal successors, (225), 214 states have internal predecessors, (225), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:01:22,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 309 transitions. [2024-11-14 04:01:22,564 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 309 transitions. Word has length 115 [2024-11-14 04:01:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:22,565 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 309 transitions. [2024-11-14 04:01:22,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 25 states have (on average 1.36) internal successors, (34), 26 states have internal predecessors, (34), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 04:01:22,565 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 309 transitions. [2024-11-14 04:01:22,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-14 04:01:22,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:22,567 INFO L215 NwaCegarLoop]: trace histogram [18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:01:22,574 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 04:01:22,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 04:01:22,771 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:01:22,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:22,771 INFO L85 PathProgramCache]: Analyzing trace with hash -948944465, now seen corresponding path program 1 times [2024-11-14 04:01:22,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:22,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029224443] [2024-11-14 04:01:22,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:22,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 39 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-14 04:01:23,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:01:23,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029224443] [2024-11-14 04:01:23,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029224443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:23,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496336564] [2024-11-14 04:01:23,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:23,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:23,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:23,009 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:23,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 04:01:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:23,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:01:23,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 167 proven. 39 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-14 04:01:23,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:23,988 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 39 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-14 04:01:23,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496336564] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:01:23,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1052538365] [2024-11-14 04:01:23,990 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:01:23,991 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:01:23,991 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:01:23,991 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:01:23,991 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:01:38,105 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:01:38,107 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:01:55,600 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23058#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 (+ 9223372036854775808 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-14 04:01:55,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:01:55,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:01:55,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2024-11-14 04:01:55,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135593650] [2024-11-14 04:01:55,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:01:55,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:01:55,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:55,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:01:55,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1274, Unknown=1, NotChecked=0, Total=1482 [2024-11-14 04:01:55,605 INFO L87 Difference]: Start difference. First operand 258 states and 309 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-14 04:01:56,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:56,943 INFO L93 Difference]: Finished difference Result 425 states and 512 transitions. [2024-11-14 04:01:56,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:01:56,943 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 130 [2024-11-14 04:01:56,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:56,944 INFO L225 Difference]: With dead ends: 425 [2024-11-14 04:01:56,944 INFO L226 Difference]: Without dead ends: 300 [2024-11-14 04:01:56,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 347 SyntacticMatches, 13 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=239, Invalid=1652, Unknown=1, NotChecked=0, Total=1892 [2024-11-14 04:01:56,946 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 67 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:56,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 232 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 04:01:56,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-14 04:01:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 276. [2024-11-14 04:01:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 224 states have (on average 1.0848214285714286) internal successors, (243), 228 states have internal predecessors, (243), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 04:01:57,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 335 transitions. [2024-11-14 04:01:57,011 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 335 transitions. Word has length 130 [2024-11-14 04:01:57,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:57,011 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 335 transitions. [2024-11-14 04:01:57,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2024-11-14 04:01:57,012 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 335 transitions. [2024-11-14 04:01:57,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-14 04:01:57,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:57,014 INFO L215 NwaCegarLoop]: trace histogram [19, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-14 04:01:57,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 04:01:57,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 04:01:57,218 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:01:57,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash -178278316, now seen corresponding path program 4 times [2024-11-14 04:01:57,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:57,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450828431] [2024-11-14 04:01:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:57,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:01:57,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346315693] [2024-11-14 04:01:57,244 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:01:57,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:57,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:57,246 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:57,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 04:01:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:57,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 04:01:57,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-14 04:01:58,874 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:59,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:01:59,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450828431] [2024-11-14 04:01:59,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:01:59,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346315693] [2024-11-14 04:01:59,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346315693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:59,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [330908533] [2024-11-14 04:01:59,456 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:01:59,456 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:01:59,456 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:01:59,456 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:01:59,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:02:13,225 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:02:13,226 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:02:31,352 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24447#(exists ((|v_ULTIMATE.start_main_~q~0#1_217| Int) (|v_ULTIMATE.start_main_~y~0#1_83| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_83|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= |v_ULTIMATE.start_main_~q~0#1_217| 9223372036854775807) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_217| |v_ULTIMATE.start_main_~y~0#1_83|)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |v_ULTIMATE.start_main_~y~0#1_83| 2147483647) (<= 0 (+ 4611686018427387903 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-14 04:02:31,352 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:02:31,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:02:31,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 04:02:31,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674651078] [2024-11-14 04:02:31,352 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:02:31,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:02:31,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:02:31,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:02:31,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1625, Unknown=1, NotChecked=0, Total=1892 [2024-11-14 04:02:31,354 INFO L87 Difference]: Start difference. First operand 276 states and 335 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 8 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-14 04:02:32,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:02:32,158 INFO L93 Difference]: Finished difference Result 319 states and 387 transitions. [2024-11-14 04:02:32,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:02:32,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 8 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 143 [2024-11-14 04:02:32,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:02:32,161 INFO L225 Difference]: With dead ends: 319 [2024-11-14 04:02:32,161 INFO L226 Difference]: Without dead ends: 318 [2024-11-14 04:02:32,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 249 SyntacticMatches, 10 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=275, Invalid=1704, Unknown=1, NotChecked=0, Total=1980 [2024-11-14 04:02:32,162 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:02:32,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 238 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:02:32,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-14 04:02:32,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 282. [2024-11-14 04:02:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 229 states have (on average 1.0829694323144106) internal successors, (248), 233 states have internal predecessors, (248), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-14 04:02:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 342 transitions. [2024-11-14 04:02:32,249 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 342 transitions. Word has length 143 [2024-11-14 04:02:32,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:02:32,249 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 342 transitions. [2024-11-14 04:02:32,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 8 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-14 04:02:32,250 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 342 transitions. [2024-11-14 04:02:32,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-14 04:02:32,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:02:32,251 INFO L215 NwaCegarLoop]: trace histogram [19, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2024-11-14 04:02:32,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 04:02:32,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:32,456 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:02:32,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:02:32,457 INFO L85 PathProgramCache]: Analyzing trace with hash 473232022, now seen corresponding path program 4 times [2024-11-14 04:02:32,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:02:32,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046120371] [2024-11-14 04:02:32,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:32,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:02:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:02:32,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1072498994] [2024-11-14 04:02:32,497 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:02:32,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:32,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:02:32,500 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:02:32,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 04:02:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:32,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 04:02:32,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-14 04:02:34,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:37,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:02:37,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046120371] [2024-11-14 04:02:37,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:02:37,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072498994] [2024-11-14 04:02:37,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072498994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:37,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [375524976] [2024-11-14 04:02:37,515 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:02:37,515 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:02:37,516 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:02:37,516 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:02:37,516 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:02:52,164 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:02:52,166 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:03:02,675 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26069#(exists ((|v_ULTIMATE.start_main_~r~0#1_223| Int) (|v_ULTIMATE.start_main_~q~0#1_236| Int) (|v_ULTIMATE.start_main_~y~0#1_84| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= |v_ULTIMATE.start_main_~y~0#1_84| 2147483647) (<= (* |v_ULTIMATE.start_main_~q~0#1_236| |v_ULTIMATE.start_main_~y~0#1_84|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_84|) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_236| |v_ULTIMATE.start_main_~y~0#1_84|) |v_ULTIMATE.start_main_~r~0#1_223|)) (<= |v_ULTIMATE.start_main_~r~0#1_223| 9223372036854775807)))' at error location [2024-11-14 04:03:02,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:03:02,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:03:02,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-14 04:03:02,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877921209] [2024-11-14 04:03:02,675 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:03:02,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:03:02,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:03:02,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:03:02,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2366, Unknown=1, NotChecked=0, Total=2652 [2024-11-14 04:03:02,677 INFO L87 Difference]: Start difference. First operand 282 states and 342 transitions. Second operand has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-14 04:03:04,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:03:04,753 INFO L93 Difference]: Finished difference Result 317 states and 383 transitions. [2024-11-14 04:03:04,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:03:04,754 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 145 [2024-11-14 04:03:04,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:03:04,756 INFO L225 Difference]: With dead ends: 317 [2024-11-14 04:03:04,756 INFO L226 Difference]: Without dead ends: 304 [2024-11-14 04:03:04,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 358 SyntacticMatches, 13 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1388 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=285, Invalid=2366, Unknown=1, NotChecked=0, Total=2652 [2024-11-14 04:03:04,757 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 55 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:03:04,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 344 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 04:03:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-14 04:03:04,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 272. [2024-11-14 04:03:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 220 states have (on average 1.0818181818181818) internal successors, (238), 224 states have internal predecessors, (238), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-14 04:03:04,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 330 transitions. [2024-11-14 04:03:04,843 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 330 transitions. Word has length 145 [2024-11-14 04:03:04,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:03:04,843 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 330 transitions. [2024-11-14 04:03:04,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-11-14 04:03:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 330 transitions. [2024-11-14 04:03:04,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-14 04:03:04,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:03:04,846 INFO L215 NwaCegarLoop]: trace histogram [22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:03:04,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 04:03:05,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:05,050 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:03:05,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:03:05,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1841261835, now seen corresponding path program 2 times [2024-11-14 04:03:05,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:03:05,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229904843] [2024-11-14 04:03:05,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:05,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:03:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:03:05,439 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 163 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-14 04:03:05,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:03:05,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229904843] [2024-11-14 04:03:05,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229904843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:03:05,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226728053] [2024-11-14 04:03:05,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:03:05,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:05,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:03:05,442 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:03:05,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 04:03:05,529 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-14 04:03:05,529 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:03:05,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:03:05,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:03:06,171 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-11-14 04:03:06,171 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:03:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-11-14 04:03:06,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226728053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:03:06,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [981181497] [2024-11-14 04:03:06,849 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:03:06,849 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:03:06,850 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:03:06,850 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:03:06,850 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:03:20,547 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:03:20,549 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:03:39,390 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27794#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 (+ 9223372036854775808 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-14 04:03:39,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:03:39,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:03:39,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 14 [2024-11-14 04:03:39,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346857166] [2024-11-14 04:03:39,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:03:39,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:03:39,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:03:39,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:03:39,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1765, Unknown=1, NotChecked=0, Total=2070 [2024-11-14 04:03:39,393 INFO L87 Difference]: Start difference. First operand 272 states and 330 transitions. Second operand has 15 states, 14 states have (on average 15.357142857142858) internal successors, (215), 15 states have internal predecessors, (215), 13 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 13 states have call predecessors, (48), 13 states have call successors, (48) [2024-11-14 04:03:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:03:42,091 INFO L93 Difference]: Finished difference Result 506 states and 614 transitions. [2024-11-14 04:03:42,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 04:03:42,092 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 15.357142857142858) internal successors, (215), 15 states have internal predecessors, (215), 13 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 13 states have call predecessors, (48), 13 states have call successors, (48) Word has length 160 [2024-11-14 04:03:42,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:03:42,094 INFO L225 Difference]: With dead ends: 506 [2024-11-14 04:03:42,095 INFO L226 Difference]: Without dead ends: 505 [2024-11-14 04:03:42,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 433 SyntacticMatches, 9 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1769 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=601, Invalid=3820, Unknown=1, NotChecked=0, Total=4422 [2024-11-14 04:03:42,097 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 399 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:03:42,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 392 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 04:03:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-14 04:03:42,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 359. [2024-11-14 04:03:42,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 291 states have (on average 1.0790378006872852) internal successors, (314), 295 states have internal predecessors, (314), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-14 04:03:42,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 438 transitions. [2024-11-14 04:03:42,190 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 438 transitions. Word has length 160 [2024-11-14 04:03:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:03:42,191 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 438 transitions. [2024-11-14 04:03:42,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 15.357142857142858) internal successors, (215), 15 states have internal predecessors, (215), 13 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 13 states have call predecessors, (48), 13 states have call successors, (48) [2024-11-14 04:03:42,191 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 438 transitions. [2024-11-14 04:03:42,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-14 04:03:42,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:03:42,194 INFO L215 NwaCegarLoop]: trace histogram [22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:03:42,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 04:03:42,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:42,398 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:03:42,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:03:42,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1781924411, now seen corresponding path program 1 times [2024-11-14 04:03:42,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:03:42,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176149720] [2024-11-14 04:03:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:42,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:03:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:03:42,769 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 22 proven. 157 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-14 04:03:42,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:03:42,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176149720] [2024-11-14 04:03:42,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176149720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:03:42,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252651431] [2024-11-14 04:03:42,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:03:42,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:03:42,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:03:42,772 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:03:42,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 04:03:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:03:42,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:03:42,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:03:43,411 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 22 proven. 157 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-14 04:03:43,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:03:44,179 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 22 proven. 157 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-14 04:03:44,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252651431] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:03:44,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [214529150] [2024-11-14 04:03:44,181 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:03:44,181 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:03:44,181 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:03:44,181 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:03:44,181 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:03:58,542 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:03:58,545 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:04:15,024 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29923#(and (<= 2 |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_main_~a~0#1_325| Int) (|v_ULTIMATE.start_main_~y~0#1_85| Int)) (and (<= 4611686018427387904 (* |v_ULTIMATE.start_main_~a~0#1_325| |v_ULTIMATE.start_main_~y~0#1_85|)) (<= |v_ULTIMATE.start_main_~y~0#1_85| 1073741823) (<= 1 |v_ULTIMATE.start_main_~y~0#1_85|))) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647))' at error location [2024-11-14 04:04:15,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:04:15,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:04:15,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2024-11-14 04:04:15,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876473666] [2024-11-14 04:04:15,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:04:15,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:04:15,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:04:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:04:15,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1581, Unknown=1, NotChecked=0, Total=1806 [2024-11-14 04:04:15,026 INFO L87 Difference]: Start difference. First operand 359 states and 438 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 8 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 8 states have call predecessors, (25), 8 states have call successors, (25) [2024-11-14 04:04:17,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:04:17,137 INFO L93 Difference]: Finished difference Result 622 states and 758 transitions. [2024-11-14 04:04:17,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:04:17,138 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 8 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 8 states have call predecessors, (25), 8 states have call successors, (25) Word has length 165 [2024-11-14 04:04:17,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:04:17,140 INFO L225 Difference]: With dead ends: 622 [2024-11-14 04:04:17,140 INFO L226 Difference]: Without dead ends: 418 [2024-11-14 04:04:17,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 448 SyntacticMatches, 16 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=302, Invalid=2349, Unknown=1, NotChecked=0, Total=2652 [2024-11-14 04:04:17,141 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 178 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:04:17,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 407 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 04:04:17,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-14 04:04:17,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 364. [2024-11-14 04:04:17,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 295 states have (on average 1.0745762711864406) internal successors, (317), 299 states have internal predecessors, (317), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 04:04:17,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 443 transitions. [2024-11-14 04:04:17,230 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 443 transitions. Word has length 165 [2024-11-14 04:04:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:04:17,231 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 443 transitions. [2024-11-14 04:04:17,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 8 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 8 states have call predecessors, (25), 8 states have call successors, (25) [2024-11-14 04:04:17,231 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 443 transitions. [2024-11-14 04:04:17,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-14 04:04:17,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:04:17,233 INFO L215 NwaCegarLoop]: trace histogram [22, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 04:04:17,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 04:04:17,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-14 04:04:17,437 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:04:17,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:04:17,438 INFO L85 PathProgramCache]: Analyzing trace with hash -769266111, now seen corresponding path program 1 times [2024-11-14 04:04:17,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:04:17,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417369472] [2024-11-14 04:04:17,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:04:17,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:04:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:04:17,852 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-14 04:04:17,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:04:17,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417369472] [2024-11-14 04:04:17,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417369472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:04:17,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5993472] [2024-11-14 04:04:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:04:17,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:04:17,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:04:17,856 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:04:17,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 04:04:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:04:17,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 04:04:17,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:04:19,050 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-14 04:04:19,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:04:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-14 04:04:19,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5993472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:04:19,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [702422526] [2024-11-14 04:04:19,935 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:04:19,935 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:04:19,936 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:04:19,936 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:04:19,936 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:04:33,822 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:04:33,824 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:04:42,624 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32198#(and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775805) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 04:04:42,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:04:42,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:04:42,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-14 04:04:42,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824141474] [2024-11-14 04:04:42,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:04:42,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 04:04:42,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:04:42,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 04:04:42,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=2290, Unknown=0, NotChecked=0, Total=2652 [2024-11-14 04:04:42,628 INFO L87 Difference]: Start difference. First operand 364 states and 443 transitions. Second operand has 22 states, 21 states have (on average 13.857142857142858) internal successors, (291), 22 states have internal predecessors, (291), 20 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 20 states have call predecessors, (64), 20 states have call successors, (64) [2024-11-14 04:04:45,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:04:45,318 INFO L93 Difference]: Finished difference Result 1091 states and 1349 transitions. [2024-11-14 04:04:45,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 04:04:45,319 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 13.857142857142858) internal successors, (291), 22 states have internal predecessors, (291), 20 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 20 states have call predecessors, (64), 20 states have call successors, (64) Word has length 165 [2024-11-14 04:04:45,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:04:45,322 INFO L225 Difference]: With dead ends: 1091 [2024-11-14 04:04:45,322 INFO L226 Difference]: Without dead ends: 1090 [2024-11-14 04:04:45,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 436 SyntacticMatches, 15 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2944 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=756, Invalid=3936, Unknown=0, NotChecked=0, Total=4692 [2024-11-14 04:04:45,324 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 862 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:04:45,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 378 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 04:04:45,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-11-14 04:04:45,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 779. [2024-11-14 04:04:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 635 states have (on average 1.0834645669291338) internal successors, (688), 639 states have internal predecessors, (688), 138 states have call successors, (138), 1 states have call predecessors, (138), 1 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-14 04:04:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 964 transitions. [2024-11-14 04:04:45,504 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 964 transitions. Word has length 165 [2024-11-14 04:04:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:04:45,504 INFO L471 AbstractCegarLoop]: Abstraction has 779 states and 964 transitions. [2024-11-14 04:04:45,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 13.857142857142858) internal successors, (291), 22 states have internal predecessors, (291), 20 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 20 states have call predecessors, (64), 20 states have call successors, (64) [2024-11-14 04:04:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 964 transitions. [2024-11-14 04:04:45,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-14 04:04:45,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:04:45,506 INFO L215 NwaCegarLoop]: trace histogram [23, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-11-14 04:04:45,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 04:04:45,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-14 04:04:45,707 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:04:45,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:04:45,708 INFO L85 PathProgramCache]: Analyzing trace with hash 619883632, now seen corresponding path program 5 times [2024-11-14 04:04:45,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:04:45,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736391210] [2024-11-14 04:04:45,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:04:45,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:04:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:04:45,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103946011] [2024-11-14 04:04:45,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:04:45,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:04:45,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:04:45,738 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:04:45,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 04:04:45,882 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:04:45,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:04:45,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:04:45,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:04:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 53 proven. 132 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2024-11-14 04:04:47,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:04:48,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:04:48,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736391210] [2024-11-14 04:04:48,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:04:48,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103946011] [2024-11-14 04:04:48,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103946011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:04:48,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1426884660] [2024-11-14 04:04:48,976 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:04:48,976 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:04:48,977 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:04:48,977 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:04:48,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:05:02,795 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:05:02,797 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:05:16,809 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35142#(exists ((|v_ULTIMATE.start_main_~y~0#1_88| Int) (|v_ULTIMATE.start_main_~q~0#1_301| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_88|) (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_301| |v_ULTIMATE.start_main_~y~0#1_88|)) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= |v_ULTIMATE.start_main_~q~0#1_301| 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |v_ULTIMATE.start_main_~y~0#1_88| 2147483647) (<= 0 (+ 4611686018427387903 |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-14 04:05:16,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:05:16,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:05:16,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 04:05:16,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564207887] [2024-11-14 04:05:16,809 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:05:16,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:05:16,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:05:16,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:05:16,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1860, Unknown=0, NotChecked=0, Total=2162 [2024-11-14 04:05:16,812 INFO L87 Difference]: Start difference. First operand 779 states and 964 transitions. Second operand has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-14 04:05:20,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:05:20,201 INFO L93 Difference]: Finished difference Result 1290 states and 1608 transitions. [2024-11-14 04:05:20,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:05:20,202 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 173 [2024-11-14 04:05:20,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:05:20,205 INFO L225 Difference]: With dead ends: 1290 [2024-11-14 04:05:20,205 INFO L226 Difference]: Without dead ends: 1289 [2024-11-14 04:05:20,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 301 SyntacticMatches, 15 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=413, Invalid=2667, Unknown=0, NotChecked=0, Total=3080 [2024-11-14 04:05:20,207 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 116 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:05:20,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 117 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-14 04:05:20,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-14 04:05:20,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1054. [2024-11-14 04:05:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 863 states have (on average 1.0787949015063731) internal successors, (931), 867 states have internal predecessors, (931), 185 states have call successors, (185), 1 states have call predecessors, (185), 1 states have return successors, (185), 185 states have call predecessors, (185), 185 states have call successors, (185) [2024-11-14 04:05:20,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1301 transitions. [2024-11-14 04:05:20,414 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1301 transitions. Word has length 173 [2024-11-14 04:05:20,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:05:20,415 INFO L471 AbstractCegarLoop]: Abstraction has 1054 states and 1301 transitions. [2024-11-14 04:05:20,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 11 states have internal predecessors, (72), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-14 04:05:20,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1301 transitions. [2024-11-14 04:05:20,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-14 04:05:20,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:05:20,416 INFO L215 NwaCegarLoop]: trace histogram [23, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-11-14 04:05:20,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 04:05:20,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-14 04:05:20,621 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:05:20,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:05:20,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1292281934, now seen corresponding path program 5 times [2024-11-14 04:05:20,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:05:20,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488995521] [2024-11-14 04:05:20,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:05:20,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:05:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:05:20,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283639195] [2024-11-14 04:05:20,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:05:20,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:05:20,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:05:20,656 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:05:20,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 04:05:20,721 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 04:05:20,721 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:05:20,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 04:05:20,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:05:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 36 proven. 134 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2024-11-14 04:05:23,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:05:24,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:05:24,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488995521] [2024-11-14 04:05:24,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:05:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283639195] [2024-11-14 04:05:24,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283639195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:05:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [566220597] [2024-11-14 04:05:24,730 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:05:24,730 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:05:24,730 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:05:24,730 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:05:24,730 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:05:42,287 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2024-11-14 04:05:42,289 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:06:05,042 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38684#(exists ((|v_ULTIMATE.start_main_~y~0#1_91| Int) (|v_ULTIMATE.start_main_~q~0#1_319| Int) (|v_ULTIMATE.start_main_~r~0#1_306| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_91| 2147483647) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_91|) (<= |v_ULTIMATE.start_main_~r~0#1_306| 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~q~0#1_319| |v_ULTIMATE.start_main_~y~0#1_91|) 9223372036854775807) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_319| |v_ULTIMATE.start_main_~y~0#1_91|) |v_ULTIMATE.start_main_~r~0#1_306|))))' at error location [2024-11-14 04:06:05,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:06:05,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:06:05,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 04:06:05,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171861379] [2024-11-14 04:06:05,043 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:06:05,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 04:06:05,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:05,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 04:06:05,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=2418, Unknown=3, NotChecked=0, Total=2756 [2024-11-14 04:06:05,044 INFO L87 Difference]: Start difference. First operand 1054 states and 1301 transitions. Second operand has 14 states, 12 states have (on average 6.083333333333333) internal successors, (73), 14 states have internal predecessors, (73), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:06:08,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:08,858 INFO L93 Difference]: Finished difference Result 1280 states and 1585 transitions. [2024-11-14 04:06:08,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:06:08,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.083333333333333) internal successors, (73), 14 states have internal predecessors, (73), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 175 [2024-11-14 04:06:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:08,862 INFO L225 Difference]: With dead ends: 1280 [2024-11-14 04:06:08,862 INFO L226 Difference]: Without dead ends: 1267 [2024-11-14 04:06:08,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 308 SyntacticMatches, 8 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1353 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=364, Invalid=2713, Unknown=3, NotChecked=0, Total=3080 [2024-11-14 04:06:08,863 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 47 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:08,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 354 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-14 04:06:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-14 04:06:09,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1056. [2024-11-14 04:06:09,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 866 states have (on average 1.0727482678983833) internal successors, (929), 870 states have internal predecessors, (929), 184 states have call successors, (184), 1 states have call predecessors, (184), 1 states have return successors, (184), 184 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-14 04:06:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1297 transitions. [2024-11-14 04:06:09,120 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1297 transitions. Word has length 175 [2024-11-14 04:06:09,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:09,121 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1297 transitions. [2024-11-14 04:06:09,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.083333333333333) internal successors, (73), 14 states have internal predecessors, (73), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 04:06:09,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1297 transitions. [2024-11-14 04:06:09,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-14 04:06:09,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:09,122 INFO L215 NwaCegarLoop]: trace histogram [26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:06:09,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-14 04:06:09,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-14 04:06:09,327 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:06:09,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:09,327 INFO L85 PathProgramCache]: Analyzing trace with hash -826853025, now seen corresponding path program 2 times [2024-11-14 04:06:09,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:09,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076495676] [2024-11-14 04:06:09,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:09,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:06:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 84 proven. 2 refuted. 0 times theorem prover too weak. 839 trivial. 0 not checked. [2024-11-14 04:06:09,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:09,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076495676] [2024-11-14 04:06:09,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076495676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:06:09,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193016305] [2024-11-14 04:06:09,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:06:09,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:06:09,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:06:09,627 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:06:09,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 04:06:09,699 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 04:06:09,700 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:06:09,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 04:06:09,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:06:10,804 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 173 proven. 18 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2024-11-14 04:06:10,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:06:11,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193016305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:06:11,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1496573533] [2024-11-14 04:06:11,707 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:06:11,707 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:06:11,707 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:06:11,707 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:06:11,707 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:06:38,774 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:06:38,776 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:06:49,288 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42258#(and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~a~0#1_413| Int) (|v_ULTIMATE.start_main_~y~0#1_94| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_94|) (<= 4611686018427387904 (* |v_ULTIMATE.start_main_~a~0#1_413| |v_ULTIMATE.start_main_~y~0#1_94|)) (<= |v_ULTIMATE.start_main_~y~0#1_94| 1073741823))) (<= |ULTIMATE.start_main_~x~0#1| 2147483647))' at error location [2024-11-14 04:06:49,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:06:49,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:06:49,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2024-11-14 04:06:49,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799330591] [2024-11-14 04:06:49,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 04:06:49,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:06:49,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:06:49,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:06:49,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1261, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 04:06:49,290 INFO L87 Difference]: Start difference. First operand 1056 states and 1297 transitions. Second operand has 10 states, 8 states have (on average 14.25) internal successors, (114), 10 states have internal predecessors, (114), 5 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-14 04:06:51,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:06:51,370 INFO L93 Difference]: Finished difference Result 1057 states and 1298 transitions. [2024-11-14 04:06:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 04:06:51,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 14.25) internal successors, (114), 10 states have internal predecessors, (114), 5 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 195 [2024-11-14 04:06:51,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:06:51,376 INFO L225 Difference]: With dead ends: 1057 [2024-11-14 04:06:51,376 INFO L226 Difference]: Without dead ends: 1055 [2024-11-14 04:06:51,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 357 SyntacticMatches, 17 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1117 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=319, Invalid=1937, Unknown=0, NotChecked=0, Total=2256 [2024-11-14 04:06:51,377 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 93 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:06:51,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 118 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 04:06:51,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-11-14 04:06:51,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 991. [2024-11-14 04:06:51,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 815 states have (on average 1.0576687116564416) internal successors, (862), 817 states have internal predecessors, (862), 172 states have call successors, (172), 1 states have call predecessors, (172), 1 states have return successors, (172), 172 states have call predecessors, (172), 172 states have call successors, (172) [2024-11-14 04:06:51,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1206 transitions. [2024-11-14 04:06:51,610 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1206 transitions. Word has length 195 [2024-11-14 04:06:51,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:06:51,611 INFO L471 AbstractCegarLoop]: Abstraction has 991 states and 1206 transitions. [2024-11-14 04:06:51,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 14.25) internal successors, (114), 10 states have internal predecessors, (114), 5 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-14 04:06:51,611 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1206 transitions. [2024-11-14 04:06:51,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-14 04:06:51,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:06:51,612 INFO L215 NwaCegarLoop]: trace histogram [28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-14 04:06:51,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-14 04:06:51,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-14 04:06:51,813 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:06:51,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:06:51,813 INFO L85 PathProgramCache]: Analyzing trace with hash -377542907, now seen corresponding path program 6 times [2024-11-14 04:06:51,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:06:51,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102526465] [2024-11-14 04:06:51,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:06:51,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:06:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:06:51,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459347964] [2024-11-14 04:06:51,858 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:06:51,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:06:51,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:06:51,861 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:06:51,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 04:06:51,977 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:06:51,977 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:06:51,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 04:06:51,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:06:54,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2024-11-14 04:06:54,335 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:06:54,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:06:54,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102526465] [2024-11-14 04:06:54,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:06:54,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459347964] [2024-11-14 04:06:54,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459347964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:06:54,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [176561871] [2024-11-14 04:06:54,822 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:06:54,822 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:06:54,822 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:06:54,822 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:06:54,822 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:07:22,459 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:07:22,461 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:07:32,168 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '45521#(and (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387904)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (exists ((|v_ULTIMATE.start_main_~q~0#1_354| Int) (|v_ULTIMATE.start_main_~y~0#1_95| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_354| |v_ULTIMATE.start_main_~y~0#1_95|)) (<= |v_ULTIMATE.start_main_~y~0#1_95| 2147483647) (<= |v_ULTIMATE.start_main_~q~0#1_354| 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~y~0#1_95|))))' at error location [2024-11-14 04:07:32,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:07:32,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:07:32,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-14 04:07:32,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199664348] [2024-11-14 04:07:32,168 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:07:32,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:07:32,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:07:32,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:07:32,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=1612, Unknown=0, NotChecked=0, Total=1892 [2024-11-14 04:07:32,170 INFO L87 Difference]: Start difference. First operand 991 states and 1206 transitions. Second operand has 13 states, 12 states have (on average 10.583333333333334) internal successors, (127), 13 states have internal predecessors, (127), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-14 04:07:33,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:07:33,360 INFO L93 Difference]: Finished difference Result 1031 states and 1252 transitions. [2024-11-14 04:07:33,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:07:33,361 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.583333333333334) internal successors, (127), 13 states have internal predecessors, (127), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) Word has length 210 [2024-11-14 04:07:33,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:07:33,368 INFO L225 Difference]: With dead ends: 1031 [2024-11-14 04:07:33,368 INFO L226 Difference]: Without dead ends: 1030 [2024-11-14 04:07:33,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 375 SyntacticMatches, 18 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1436 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=290, Invalid=1690, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 04:07:33,369 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:07:33,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 268 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:07:33,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-14 04:07:33,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1028. [2024-11-14 04:07:33,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 846 states have (on average 1.0555555555555556) internal successors, (893), 848 states have internal predecessors, (893), 178 states have call successors, (178), 1 states have call predecessors, (178), 1 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-14 04:07:33,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1249 transitions. [2024-11-14 04:07:33,621 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1249 transitions. Word has length 210 [2024-11-14 04:07:33,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:07:33,621 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1249 transitions. [2024-11-14 04:07:33,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.583333333333334) internal successors, (127), 13 states have internal predecessors, (127), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-14 04:07:33,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1249 transitions. [2024-11-14 04:07:33,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-14 04:07:33,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:07:33,623 INFO L215 NwaCegarLoop]: trace histogram [28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 1, 1] [2024-11-14 04:07:33,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-14 04:07:33,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-14 04:07:33,824 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:07:33,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:07:33,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2041478905, now seen corresponding path program 6 times [2024-11-14 04:07:33,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:07:33,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162765956] [2024-11-14 04:07:33,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:07:33,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:07:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:07:33,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962482589] [2024-11-14 04:07:33,858 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 04:07:33,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:07:33,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:07:33,866 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:07:33,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 04:07:33,973 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 04:07:33,973 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:07:33,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 04:07:33,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:07:36,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2024-11-14 04:07:36,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:07:42,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:07:42,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162765956] [2024-11-14 04:07:42,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:07:42,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962482589] [2024-11-14 04:07:42,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962482589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:07:42,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1892208442] [2024-11-14 04:07:42,751 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:07:42,751 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:07:42,752 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:07:42,752 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:07:42,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:08:15,306 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:08:15,308 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:08:42,195 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49349#(and (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387900)) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_96| Int) (|v_ULTIMATE.start_main_~q~0#1_376| Int)) (and (<= (* |v_ULTIMATE.start_main_~q~0#1_376| |v_ULTIMATE.start_main_~y~0#1_96|) 9223372036854775807) (<= 0 (+ (* |v_ULTIMATE.start_main_~q~0#1_376| |v_ULTIMATE.start_main_~y~0#1_96|) 9903520295836298127630925822)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_96|) (<= |v_ULTIMATE.start_main_~y~0#1_96| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_376| 9223372036854775808)))) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)))' at error location [2024-11-14 04:08:42,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:08:42,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:08:42,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-14 04:08:42,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102398336] [2024-11-14 04:08:42,195 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:08:42,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 04:08:42,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:08:42,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 04:08:42,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2602, Unknown=3, NotChecked=0, Total=2862 [2024-11-14 04:08:42,197 INFO L87 Difference]: Start difference. First operand 1028 states and 1249 transitions. Second operand has 18 states, 17 states have (on average 7.588235294117647) internal successors, (129), 18 states have internal predecessors, (129), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-14 04:08:45,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:08:45,746 INFO L93 Difference]: Finished difference Result 1031 states and 1251 transitions. [2024-11-14 04:08:45,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 04:08:45,747 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.588235294117647) internal successors, (129), 18 states have internal predecessors, (129), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 212 [2024-11-14 04:08:45,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:08:45,751 INFO L225 Difference]: With dead ends: 1031 [2024-11-14 04:08:45,751 INFO L226 Difference]: Without dead ends: 942 [2024-11-14 04:08:45,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 549 SyntacticMatches, 21 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1497 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=257, Invalid=2602, Unknown=3, NotChecked=0, Total=2862 [2024-11-14 04:08:45,752 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 27 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:08:45,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 609 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-14 04:08:45,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-14 04:08:45,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2024-11-14 04:08:45,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 775 states have (on average 1.0593548387096774) internal successors, (821), 777 states have internal predecessors, (821), 163 states have call successors, (163), 1 states have call predecessors, (163), 1 states have return successors, (163), 163 states have call predecessors, (163), 163 states have call successors, (163) [2024-11-14 04:08:45,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1147 transitions. [2024-11-14 04:08:45,938 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1147 transitions. Word has length 212 [2024-11-14 04:08:45,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:08:45,939 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1147 transitions. [2024-11-14 04:08:45,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.588235294117647) internal successors, (129), 18 states have internal predecessors, (129), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-14 04:08:45,939 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1147 transitions. [2024-11-14 04:08:45,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-14 04:08:45,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:08:45,940 INFO L215 NwaCegarLoop]: trace histogram [32, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 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, 1, 1] [2024-11-14 04:08:45,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-14 04:08:46,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 04:08:46,141 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:08:46,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:08:46,141 INFO L85 PathProgramCache]: Analyzing trace with hash 651901537, now seen corresponding path program 7 times [2024-11-14 04:08:46,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:08:46,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862834098] [2024-11-14 04:08:46,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:08:46,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:08:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:08:46,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545592342] [2024-11-14 04:08:46,191 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:08:46,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:08:46,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:08:46,193 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:08:46,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 04:08:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:08:46,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:08:46,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:08:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 0 proven. 387 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-11-14 04:08:49,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:08:49,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:08:49,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862834098] [2024-11-14 04:08:49,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:08:49,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545592342] [2024-11-14 04:08:49,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545592342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:08:49,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1936218525] [2024-11-14 04:08:49,398 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:08:49,398 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:08:49,398 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:08:49,399 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:08:49,399 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:09:18,120 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:09:18,122 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:09:27,938 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '52592#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_97| Int) (|v_ULTIMATE.start_main_~q~0#1_396| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_396| 9223372036854775807) (<= |v_ULTIMATE.start_main_~y~0#1_97| 2147483647) (<= 1 |v_ULTIMATE.start_main_~y~0#1_97|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_396| |v_ULTIMATE.start_main_~y~0#1_97|)))) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |ULTIMATE.start_main_~r~0#1| 4611686018427387902) (<= 0 (+ 4611686018427387903 |ULTIMATE.start_main_~r~0#1|)) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-14 04:09:27,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:09:27,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:09:27,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 04:09:27,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148420923] [2024-11-14 04:09:27,938 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:09:27,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 04:09:27,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:09:27,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 04:09:27,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1616, Unknown=0, NotChecked=0, Total=1892 [2024-11-14 04:09:27,939 INFO L87 Difference]: Start difference. First operand 942 states and 1147 transitions. Second operand has 14 states, 13 states have (on average 11.153846153846153) internal successors, (145), 14 states have internal predecessors, (145), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-14 04:09:29,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:09:29,154 INFO L93 Difference]: Finished difference Result 1034 states and 1256 transitions. [2024-11-14 04:09:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 04:09:29,155 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.153846153846153) internal successors, (145), 14 states have internal predecessors, (145), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) Word has length 240 [2024-11-14 04:09:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:09:29,158 INFO L225 Difference]: With dead ends: 1034 [2024-11-14 04:09:29,158 INFO L226 Difference]: Without dead ends: 1033 [2024-11-14 04:09:29,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 432 SyntacticMatches, 21 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1724 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=287, Invalid=1693, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 04:09:29,159 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 142 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:09:29,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 244 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:09:29,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2024-11-14 04:09:29,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 979. [2024-11-14 04:09:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 806 states have (on average 1.0570719602977667) internal successors, (852), 808 states have internal predecessors, (852), 169 states have call successors, (169), 1 states have call predecessors, (169), 1 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) [2024-11-14 04:09:29,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1190 transitions. [2024-11-14 04:09:29,350 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1190 transitions. Word has length 240 [2024-11-14 04:09:29,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:09:29,350 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1190 transitions. [2024-11-14 04:09:29,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.153846153846153) internal successors, (145), 14 states have internal predecessors, (145), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-14 04:09:29,350 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1190 transitions. [2024-11-14 04:09:29,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-14 04:09:29,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:09:29,353 INFO L215 NwaCegarLoop]: trace histogram [32, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-14 04:09:29,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 04:09:29,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:09:29,557 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:09:29,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:09:29,557 INFO L85 PathProgramCache]: Analyzing trace with hash -587846301, now seen corresponding path program 7 times [2024-11-14 04:09:29,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:09:29,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503537224] [2024-11-14 04:09:29,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:09:29,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:09:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:09:29,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666955475] [2024-11-14 04:09:29,598 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 04:09:29,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:09:29,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:09:29,600 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:09:29,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 04:09:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:09:29,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 04:09:29,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:09:33,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 0 proven. 393 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-11-14 04:09:33,190 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:09:39,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:09:39,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503537224] [2024-11-14 04:09:39,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:09:39,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666955475] [2024-11-14 04:09:39,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666955475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:09:39,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1132744550] [2024-11-14 04:09:39,233 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:09:39,233 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:09:39,234 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:09:39,234 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:09:39,234 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:10:11,174 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 04:10:11,176 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:10:41,887 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '56543#(and (<= 0 (+ |ULTIMATE.start_main_~b~0#1| 4611686018427387900)) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (exists ((|v_ULTIMATE.start_main_~q~0#1_418| Int) (|v_ULTIMATE.start_main_~y~0#1_98| Int)) (and (<= (* |v_ULTIMATE.start_main_~q~0#1_418| |v_ULTIMATE.start_main_~y~0#1_98|) 9223372036854775807) (<= 1 |v_ULTIMATE.start_main_~y~0#1_98|) (<= 0 (+ (* |v_ULTIMATE.start_main_~q~0#1_418| |v_ULTIMATE.start_main_~y~0#1_98|) 9903520295836298127630925822)) (<= |v_ULTIMATE.start_main_~y~0#1_98| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_418| 9223372036854775808)))))' at error location [2024-11-14 04:10:41,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 04:10:41,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:10:41,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-14 04:10:41,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900387615] [2024-11-14 04:10:41,888 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 04:10:41,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 04:10:41,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:41,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 04:10:41,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=3016, Unknown=3, NotChecked=0, Total=3306 [2024-11-14 04:10:41,889 INFO L87 Difference]: Start difference. First operand 979 states and 1190 transitions. Second operand has 20 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 20 states have internal predecessors, (147), 11 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-14 04:10:45,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:45,988 INFO L93 Difference]: Finished difference Result 1030 states and 1250 transitions. [2024-11-14 04:10:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 04:10:45,989 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 20 states have internal predecessors, (147), 11 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) Word has length 242 [2024-11-14 04:10:45,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:45,992 INFO L225 Difference]: With dead ends: 1030 [2024-11-14 04:10:45,992 INFO L226 Difference]: Without dead ends: 990 [2024-11-14 04:10:45,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 633 SyntacticMatches, 23 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1821 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=287, Invalid=3016, Unknown=3, NotChecked=0, Total=3306 [2024-11-14 04:10:45,993 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 66 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:45,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 550 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-14 04:10:45,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-11-14 04:10:46,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 942. [2024-11-14 04:10:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 775 states have (on average 1.0580645161290323) internal successors, (820), 777 states have internal predecessors, (820), 163 states have call successors, (163), 1 states have call predecessors, (163), 1 states have return successors, (163), 163 states have call predecessors, (163), 163 states have call successors, (163) [2024-11-14 04:10:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1146 transitions. [2024-11-14 04:10:46,195 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1146 transitions. Word has length 242 [2024-11-14 04:10:46,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:46,195 INFO L471 AbstractCegarLoop]: Abstraction has 942 states and 1146 transitions. [2024-11-14 04:10:46,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.7368421052631575) internal successors, (147), 20 states have internal predecessors, (147), 11 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-14 04:10:46,196 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1146 transitions. [2024-11-14 04:10:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-14 04:10:46,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:46,198 INFO L215 NwaCegarLoop]: trace histogram [36, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-14 04:10:46,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-14 04:10:46,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:10:46,399 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-14 04:10:46,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:46,399 INFO L85 PathProgramCache]: Analyzing trace with hash -402452539, now seen corresponding path program 8 times [2024-11-14 04:10:46,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:46,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406822379] [2024-11-14 04:10:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:46,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:10:46,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932950071] [2024-11-14 04:10:46,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:10:46,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:10:46,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:10:46,439 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:10:46,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365ef891-6a0f-4157-8da0-4b83aa60f00a/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 04:10:46,569 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 04:10:46,569 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:10:46,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 04:10:46,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:10:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1774 backedges. 110 proven. 343 refuted. 0 times theorem prover too weak. 1321 trivial. 0 not checked. [2024-11-14 04:10:48,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:10:50,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:50,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406822379] [2024-11-14 04:10:50,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 04:10:50,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932950071] [2024-11-14 04:10:50,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932950071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:10:50,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2017039825] [2024-11-14 04:10:50,248 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 04:10:50,248 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:10:50,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:10:50,248 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:10:50,248 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs