./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/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_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/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_274859d6-089a-4675-92d6-1a9a65cc92a4/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 d998c441c771938676edf06a0e9387fce091f1e4d7230def291c87707c204f78 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:20:19,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:20:19,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:20:19,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:20:19,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:20:19,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:20:19,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:20:19,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:20:19,213 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:20:19,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:20:19,214 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:20:19,214 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:20:19,214 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:20:19,214 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:20:19,214 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:20:19,214 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:20:19,215 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:20:19,215 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:20:19,215 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:20:19,215 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:20:19,215 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:20:19,216 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:20:19,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:20:19,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:20:19,216 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:20:19,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:20:19,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:20:19,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:20:19,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:20:19,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:20:19,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:20:19,217 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:20:19,218 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:20:19,218 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:20:19,218 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:20:19,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:20:19,218 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:20:19,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:20:19,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:20:19,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:20:19,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:20:19,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:20:19,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:20:19,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:20:19,219 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:20:19,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:20:19,220 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:20:19,220 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:20:19,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:20:19,220 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_274859d6-089a-4675-92d6-1a9a65cc92a4/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 -> d998c441c771938676edf06a0e9387fce091f1e4d7230def291c87707c204f78 [2024-11-14 03:20:19,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:20:19,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:20:19,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:20:19,606 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:20:19,607 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:20:19,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound50.c Unable to find full path for "g++" [2024-11-14 03:20:21,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:20:22,149 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:20:22,152 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound50.c [2024-11-14 03:20:22,163 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/data/c427976f5/96dbe45e1ee342c1903c0a6b36e0e47e/FLAG1af05c4df [2024-11-14 03:20:22,189 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/data/c427976f5/96dbe45e1ee342c1903c0a6b36e0e47e [2024-11-14 03:20:22,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:20:22,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:20:22,199 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:20:22,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:20:22,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:20:22,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,208 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37263d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22, skipping insertion in model container [2024-11-14 03:20:22,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:20:22,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:20:22,500 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:20:22,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:20:22,564 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:20:22,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22 WrapperNode [2024-11-14 03:20:22,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:20:22,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:20:22,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:20:22,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:20:22,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,588 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,624 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 115 [2024-11-14 03:20:22,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:20:22,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:20:22,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:20:22,629 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:20:22,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:20:22,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:20:22,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:20:22,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:20:22,678 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (1/1) ... [2024-11-14 03:20:22,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:20:22,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:22,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:20:22,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:20:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:20:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:20:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:20:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:20:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:20:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:20:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:20:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:20:22,878 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:20:22,880 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:20:23,584 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2024-11-14 03:20:23,584 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:20:23,638 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:20:23,638 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:20:23,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:20:23 BoogieIcfgContainer [2024-11-14 03:20:23,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:20:23,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:20:23,643 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:20:23,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:20:23,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:20:22" (1/3) ... [2024-11-14 03:20:23,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4385f576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:20:23, skipping insertion in model container [2024-11-14 03:20:23,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:20:22" (2/3) ... [2024-11-14 03:20:23,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4385f576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:20:23, skipping insertion in model container [2024-11-14 03:20:23,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:20:23" (3/3) ... [2024-11-14 03:20:23,653 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound50.c [2024-11-14 03:20:23,674 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:20:23,676 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG bresenham-ll_valuebound50.c that has 3 procedures, 132 locations, 1 initial locations, 1 loop locations, and 58 error locations. [2024-11-14 03:20:23,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:20:23,779 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;@2dd33410, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:20:23,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-14 03:20:23,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 67 states have (on average 1.9104477611940298) internal successors, (128), 125 states have internal predecessors, (128), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:20:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 03:20:23,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:23,798 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:23,798 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:23,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:23,805 INFO L85 PathProgramCache]: Analyzing trace with hash -162689438, now seen corresponding path program 1 times [2024-11-14 03:20:23,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:23,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445136396] [2024-11-14 03:20:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:23,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:24,028 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 03:20:24,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:24,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445136396] [2024-11-14 03:20:24,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445136396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:24,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:24,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:24,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961023840] [2024-11-14 03:20:24,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:24,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:24,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:24,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:24,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:24,067 INFO L87 Difference]: Start difference. First operand has 132 states, 67 states have (on average 1.9104477611940298) internal successors, (128), 125 states have internal predecessors, (128), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:24,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:24,429 INFO L93 Difference]: Finished difference Result 180 states and 184 transitions. [2024-11-14 03:20:24,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:24,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 9 [2024-11-14 03:20:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:24,444 INFO L225 Difference]: With dead ends: 180 [2024-11-14 03:20:24,444 INFO L226 Difference]: Without dead ends: 125 [2024-11-14 03:20:24,447 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 03:20:24,450 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 90 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:24,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 72 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:20:24,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-14 03:20:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-14 03:20:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 66 states have (on average 1.8333333333333333) internal successors, (121), 119 states have internal predecessors, (121), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2024-11-14 03:20:24,499 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 9 [2024-11-14 03:20:24,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:24,503 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2024-11-14 03:20:24,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:24,504 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2024-11-14 03:20:24,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 03:20:24,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:24,506 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:24,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:20:24,507 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:24,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:24,509 INFO L85 PathProgramCache]: Analyzing trace with hash -748405243, now seen corresponding path program 1 times [2024-11-14 03:20:24,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:24,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070750401] [2024-11-14 03:20:24,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:24,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:24,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:24,572 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 03:20:24,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:24,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070750401] [2024-11-14 03:20:24,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070750401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:24,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:24,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:24,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95442682] [2024-11-14 03:20:24,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:24,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:24,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:24,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:24,575 INFO L87 Difference]: Start difference. First operand 125 states and 127 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:24,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:24,747 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2024-11-14 03:20:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:24,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 10 [2024-11-14 03:20:24,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:24,748 INFO L225 Difference]: With dead ends: 125 [2024-11-14 03:20:24,749 INFO L226 Difference]: Without dead ends: 121 [2024-11-14 03:20:24,749 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 03:20:24,750 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 88 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:24,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 69 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:20:24,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-14 03:20:24,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-14 03:20:24,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 66 states have (on average 1.7727272727272727) internal successors, (117), 115 states have internal predecessors, (117), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions. [2024-11-14 03:20:24,775 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 10 [2024-11-14 03:20:24,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:24,775 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 123 transitions. [2024-11-14 03:20:24,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions. [2024-11-14 03:20:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:20:24,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:24,776 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:24,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:20:24,776 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:24,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:24,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1725726012, now seen corresponding path program 1 times [2024-11-14 03:20:24,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:24,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015439667] [2024-11-14 03:20:24,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:24,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:24,885 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 03:20:24,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:24,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015439667] [2024-11-14 03:20:24,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015439667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:24,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:24,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:24,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375812145] [2024-11-14 03:20:24,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:24,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:24,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:24,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:24,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:24,889 INFO L87 Difference]: Start difference. First operand 121 states and 123 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:25,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:25,256 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2024-11-14 03:20:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:20:25,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 11 [2024-11-14 03:20:25,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:25,258 INFO L225 Difference]: With dead ends: 121 [2024-11-14 03:20:25,259 INFO L226 Difference]: Without dead ends: 118 [2024-11-14 03:20:25,259 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 03:20:25,260 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 171 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:25,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 57 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:20:25,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-14 03:20:25,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-14 03:20:25,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 66 states have (on average 1.7272727272727273) internal successors, (114), 112 states have internal predecessors, (114), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2024-11-14 03:20:25,274 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 11 [2024-11-14 03:20:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:25,274 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2024-11-14 03:20:25,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2024-11-14 03:20:25,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 03:20:25,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:25,276 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:25,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:20:25,276 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:25,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:25,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1957898777, now seen corresponding path program 1 times [2024-11-14 03:20:25,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:25,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438074732] [2024-11-14 03:20:25,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:25,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:25,358 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 03:20:25,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:25,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438074732] [2024-11-14 03:20:25,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438074732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:25,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:25,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:25,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419058048] [2024-11-14 03:20:25,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:25,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:25,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:25,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:25,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:25,362 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:25,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:25,684 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2024-11-14 03:20:25,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:20:25,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 12 [2024-11-14 03:20:25,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:25,686 INFO L225 Difference]: With dead ends: 118 [2024-11-14 03:20:25,688 INFO L226 Difference]: Without dead ends: 115 [2024-11-14 03:20:25,689 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 03:20:25,690 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 170 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:25,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 57 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:20:25,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-14 03:20:25,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-14 03:20:25,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 66 states have (on average 1.6818181818181819) internal successors, (111), 109 states have internal predecessors, (111), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:25,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 117 transitions. [2024-11-14 03:20:25,718 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 117 transitions. Word has length 12 [2024-11-14 03:20:25,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:25,718 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 117 transitions. [2024-11-14 03:20:25,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:25,719 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 117 transitions. [2024-11-14 03:20:25,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 03:20:25,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:25,720 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:25,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:20:25,720 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:25,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:25,721 INFO L85 PathProgramCache]: Analyzing trace with hash -345047415, now seen corresponding path program 1 times [2024-11-14 03:20:25,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:25,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671895235] [2024-11-14 03:20:25,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:25,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:25,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425088165] [2024-11-14 03:20:25,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:25,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:25,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:25,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:25,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:20:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:25,852 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:20:25,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:25,888 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 03:20:25,888 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:25,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:25,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671895235] [2024-11-14 03:20:25,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:25,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425088165] [2024-11-14 03:20:25,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425088165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:25,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:25,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:25,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427724126] [2024-11-14 03:20:25,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:25,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:25,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:25,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:25,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:25,896 INFO L87 Difference]: Start difference. First operand 115 states and 117 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, (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 03:20:26,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:26,124 INFO L93 Difference]: Finished difference Result 180 states and 185 transitions. [2024-11-14 03:20:26,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:26,125 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, (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 14 [2024-11-14 03:20:26,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:26,126 INFO L225 Difference]: With dead ends: 180 [2024-11-14 03:20:26,127 INFO L226 Difference]: Without dead ends: 174 [2024-11-14 03:20:26,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:26,128 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 57 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:26,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 202 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:20:26,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-14 03:20:26,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2024-11-14 03:20:26,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 90 states have (on average 1.6666666666666667) internal successors, (150), 133 states have internal predecessors, (150), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:20:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 158 transitions. [2024-11-14 03:20:26,145 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 158 transitions. Word has length 14 [2024-11-14 03:20:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:26,145 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 158 transitions. [2024-11-14 03:20:26,145 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, (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 03:20:26,146 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 158 transitions. [2024-11-14 03:20:26,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 03:20:26,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:26,146 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:26,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 03:20:26,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:26,351 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:26,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:26,352 INFO L85 PathProgramCache]: Analyzing trace with hash -878082261, now seen corresponding path program 1 times [2024-11-14 03:20:26,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:26,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284206183] [2024-11-14 03:20:26,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:26,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:26,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865488550] [2024-11-14 03:20:26,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:26,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:26,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:26,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:26,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:20:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:26,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:20:26,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:26,505 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 03:20:26,505 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:26,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:26,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284206183] [2024-11-14 03:20:26,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:26,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865488550] [2024-11-14 03:20:26,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865488550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:26,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:26,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:20:26,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025990340] [2024-11-14 03:20:26,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:26,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:20:26,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:26,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:20:26,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:20:26,507 INFO L87 Difference]: Start difference. First operand 140 states and 158 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 03:20:26,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:26,638 INFO L93 Difference]: Finished difference Result 237 states and 259 transitions. [2024-11-14 03:20:26,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:20:26,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-14 03:20:26,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:26,641 INFO L225 Difference]: With dead ends: 237 [2024-11-14 03:20:26,641 INFO L226 Difference]: Without dead ends: 231 [2024-11-14 03:20:26,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 03:20:26,643 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 87 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:26,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 202 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:20:26,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-14 03:20:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 189. [2024-11-14 03:20:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 138 states have (on average 1.6666666666666667) internal successors, (230), 181 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 240 transitions. [2024-11-14 03:20:26,663 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 240 transitions. Word has length 16 [2024-11-14 03:20:26,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:26,663 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 240 transitions. [2024-11-14 03:20:26,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (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 03:20:26,664 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 240 transitions. [2024-11-14 03:20:26,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 03:20:26,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:26,664 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 03:20:26,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:20:26,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 03:20:26,865 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:26,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash -2023460915, now seen corresponding path program 1 times [2024-11-14 03:20:26,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:26,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022630028] [2024-11-14 03:20:26,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:26,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:26,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1601858421] [2024-11-14 03:20:26,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:26,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:26,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:26,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:26,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:20:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:26,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:20:26,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:27,024 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 03:20:27,024 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:27,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:27,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022630028] [2024-11-14 03:20:27,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:27,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601858421] [2024-11-14 03:20:27,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601858421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:27,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:27,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:27,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027395144] [2024-11-14 03:20:27,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:27,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:27,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:27,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:27,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:27,027 INFO L87 Difference]: Start difference. First operand 189 states and 240 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 03:20:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:27,436 INFO L93 Difference]: Finished difference Result 257 states and 311 transitions. [2024-11-14 03:20:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:20:27,436 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 03:20:27,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:27,438 INFO L225 Difference]: With dead ends: 257 [2024-11-14 03:20:27,438 INFO L226 Difference]: Without dead ends: 255 [2024-11-14 03:20:27,439 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 03:20:27,440 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 122 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:27,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 210 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:27,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-14 03:20:27,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 190. [2024-11-14 03:20:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 139 states have (on average 1.6546762589928057) internal successors, (230), 182 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 240 transitions. [2024-11-14 03:20:27,458 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 240 transitions. Word has length 18 [2024-11-14 03:20:27,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:27,458 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 240 transitions. [2024-11-14 03:20:27,458 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 03:20:27,458 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 240 transitions. [2024-11-14 03:20:27,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:20:27,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:27,459 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:27,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:20:27,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:27,663 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:27,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:27,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1697221138, now seen corresponding path program 1 times [2024-11-14 03:20:27,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:27,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80534978] [2024-11-14 03:20:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:27,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656268071] [2024-11-14 03:20:27,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:27,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:27,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:27,688 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:27,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:20:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:27,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:20:27,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:27,817 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 03:20:27,817 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:27,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:27,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80534978] [2024-11-14 03:20:27,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:27,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656268071] [2024-11-14 03:20:27,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656268071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:27,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:27,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:27,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897909299] [2024-11-14 03:20:27,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:27,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:27,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:27,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:27,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:27,819 INFO L87 Difference]: Start difference. First operand 190 states and 240 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 03:20:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:28,292 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2024-11-14 03:20:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:20:28,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 19 [2024-11-14 03:20:28,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:28,295 INFO L225 Difference]: With dead ends: 256 [2024-11-14 03:20:28,295 INFO L226 Difference]: Without dead ends: 254 [2024-11-14 03:20:28,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 03:20:28,296 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 120 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:28,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 213 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:28,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-14 03:20:28,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 191. [2024-11-14 03:20:28,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 140 states have (on average 1.6428571428571428) internal successors, (230), 183 states have internal predecessors, (230), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:28,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 240 transitions. [2024-11-14 03:20:28,330 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 240 transitions. Word has length 19 [2024-11-14 03:20:28,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:28,331 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 240 transitions. [2024-11-14 03:20:28,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 03:20:28,332 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 240 transitions. [2024-11-14 03:20:28,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 03:20:28,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:28,333 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:28,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:20:28,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:28,542 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:28,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:28,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1074247791, now seen corresponding path program 1 times [2024-11-14 03:20:28,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:28,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793849847] [2024-11-14 03:20:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:28,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:28,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369357559] [2024-11-14 03:20:28,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:28,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:28,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:28,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:28,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:20:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:28,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:20:28,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:28,675 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 03:20:28,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:28,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:28,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793849847] [2024-11-14 03:20:28,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:28,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369357559] [2024-11-14 03:20:28,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369357559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:28,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:28,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:28,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852095453] [2024-11-14 03:20:28,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:28,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:28,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:28,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:28,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:28,677 INFO L87 Difference]: Start difference. First operand 191 states and 240 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:28,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:28,970 INFO L93 Difference]: Finished difference Result 251 states and 269 transitions. [2024-11-14 03:20:28,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:20:28,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-14 03:20:28,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:28,972 INFO L225 Difference]: With dead ends: 251 [2024-11-14 03:20:28,973 INFO L226 Difference]: Without dead ends: 249 [2024-11-14 03:20:28,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 03:20:28,975 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 168 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:28,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 233 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:20:28,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-14 03:20:28,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 191. [2024-11-14 03:20:28,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 140 states have (on average 1.6214285714285714) internal successors, (227), 183 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:28,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 237 transitions. [2024-11-14 03:20:28,994 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 237 transitions. Word has length 20 [2024-11-14 03:20:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:28,996 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 237 transitions. [2024-11-14 03:20:28,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:28,997 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 237 transitions. [2024-11-14 03:20:28,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:20:28,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:28,998 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:29,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 03:20:29,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 03:20:29,198 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:29,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1058056780, now seen corresponding path program 1 times [2024-11-14 03:20:29,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:29,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781581495] [2024-11-14 03:20:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:29,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:29,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984420555] [2024-11-14 03:20:29,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:29,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:29,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:29,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:29,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:20:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:29,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:20:29,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:29,330 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 03:20:29,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:29,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:29,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781581495] [2024-11-14 03:20:29,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:29,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984420555] [2024-11-14 03:20:29,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984420555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:29,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:29,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:29,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108775357] [2024-11-14 03:20:29,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:29,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:29,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:29,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:29,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:29,332 INFO L87 Difference]: Start difference. First operand 191 states and 237 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:29,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:29,570 INFO L93 Difference]: Finished difference Result 249 states and 266 transitions. [2024-11-14 03:20:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:20:29,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-14 03:20:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:29,575 INFO L225 Difference]: With dead ends: 249 [2024-11-14 03:20:29,575 INFO L226 Difference]: Without dead ends: 247 [2024-11-14 03:20:29,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 03:20:29,576 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:29,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 239 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:20:29,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-14 03:20:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 191. [2024-11-14 03:20:29,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 140 states have (on average 1.6) internal successors, (224), 183 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:29,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 234 transitions. [2024-11-14 03:20:29,589 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 234 transitions. Word has length 21 [2024-11-14 03:20:29,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:29,589 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 234 transitions. [2024-11-14 03:20:29,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:29,589 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 234 transitions. [2024-11-14 03:20:29,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 03:20:29,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:29,590 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:29,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:20:29,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 03:20:29,791 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:29,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:29,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1559978257, now seen corresponding path program 1 times [2024-11-14 03:20:29,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:29,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838094396] [2024-11-14 03:20:29,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:29,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:29,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [720519814] [2024-11-14 03:20:29,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:29,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:29,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:29,812 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:29,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:20:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:29,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:20:29,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:29,977 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 03:20:29,977 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:29,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:29,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838094396] [2024-11-14 03:20:29,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:29,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720519814] [2024-11-14 03:20:29,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720519814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:29,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:29,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:20:29,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768267359] [2024-11-14 03:20:29,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:29,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:20:29,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:29,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:20:29,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:20:29,979 INFO L87 Difference]: Start difference. First operand 191 states and 234 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 03:20:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:30,420 INFO L93 Difference]: Finished difference Result 255 states and 299 transitions. [2024-11-14 03:20:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:20:30,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 22 [2024-11-14 03:20:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:30,423 INFO L225 Difference]: With dead ends: 255 [2024-11-14 03:20:30,423 INFO L226 Difference]: Without dead ends: 253 [2024-11-14 03:20:30,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:20:30,425 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 174 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:30,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 239 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:30,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-14 03:20:30,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 194. [2024-11-14 03:20:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 143 states have (on average 1.5804195804195804) internal successors, (226), 186 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 236 transitions. [2024-11-14 03:20:30,441 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 236 transitions. Word has length 22 [2024-11-14 03:20:30,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:30,441 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 236 transitions. [2024-11-14 03:20:30,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 03:20:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 236 transitions. [2024-11-14 03:20:30,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 03:20:30,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:30,442 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:30,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:20:30,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 03:20:30,643 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:30,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:30,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1114685782, now seen corresponding path program 1 times [2024-11-14 03:20:30,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:30,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038705816] [2024-11-14 03:20:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:30,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:30,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999348790] [2024-11-14 03:20:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:30,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:30,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:30,660 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:30,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:20:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:30,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:20:30,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:30,823 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 03:20:30,823 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:30,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:30,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038705816] [2024-11-14 03:20:30,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:30,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999348790] [2024-11-14 03:20:30,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999348790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:30,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:30,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:20:30,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441309403] [2024-11-14 03:20:30,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:30,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:20:30,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:30,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:20:30,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:20:30,825 INFO L87 Difference]: Start difference. First operand 194 states and 236 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:31,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:31,285 INFO L93 Difference]: Finished difference Result 254 states and 297 transitions. [2024-11-14 03:20:31,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:20:31,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-14 03:20:31,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:31,287 INFO L225 Difference]: With dead ends: 254 [2024-11-14 03:20:31,287 INFO L226 Difference]: Without dead ends: 252 [2024-11-14 03:20:31,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:20:31,289 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 172 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:31,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 242 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-14 03:20:31,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 195. [2024-11-14 03:20:31,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 144 states have (on average 1.5694444444444444) internal successors, (226), 187 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 236 transitions. [2024-11-14 03:20:31,305 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 236 transitions. Word has length 23 [2024-11-14 03:20:31,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:31,305 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 236 transitions. [2024-11-14 03:20:31,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 236 transitions. [2024-11-14 03:20:31,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 03:20:31,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:31,309 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:31,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-14 03:20:31,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 03:20:31,510 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:31,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:31,511 INFO L85 PathProgramCache]: Analyzing trace with hash 195520947, now seen corresponding path program 1 times [2024-11-14 03:20:31,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:31,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778574941] [2024-11-14 03:20:31,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:31,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:31,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397328466] [2024-11-14 03:20:31,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:31,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:31,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:31,537 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:31,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:20:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:31,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:20:31,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:31,770 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 03:20:31,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:31,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:31,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778574941] [2024-11-14 03:20:31,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:31,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397328466] [2024-11-14 03:20:31,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397328466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:31,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:31,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:20:31,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653861572] [2024-11-14 03:20:31,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:31,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:20:31,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:31,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:20:31,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:20:31,773 INFO L87 Difference]: Start difference. First operand 195 states and 236 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:32,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:32,200 INFO L93 Difference]: Finished difference Result 246 states and 295 transitions. [2024-11-14 03:20:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:20:32,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-14 03:20:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:32,202 INFO L225 Difference]: With dead ends: 246 [2024-11-14 03:20:32,202 INFO L226 Difference]: Without dead ends: 244 [2024-11-14 03:20:32,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:20:32,203 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 246 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:32,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 178 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:32,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-14 03:20:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 196. [2024-11-14 03:20:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 145 states have (on average 1.5586206896551724) internal successors, (226), 188 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 236 transitions. [2024-11-14 03:20:32,215 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 236 transitions. Word has length 24 [2024-11-14 03:20:32,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:32,215 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 236 transitions. [2024-11-14 03:20:32,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:32,216 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 236 transitions. [2024-11-14 03:20:32,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 03:20:32,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:32,217 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:32,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 03:20:32,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 03:20:32,421 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:32,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:32,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1766182136, now seen corresponding path program 1 times [2024-11-14 03:20:32,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:32,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792649657] [2024-11-14 03:20:32,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:32,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:20:32,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:32,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792649657] [2024-11-14 03:20:32,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792649657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:20:32,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031231229] [2024-11-14 03:20:32,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:32,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:32,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:32,596 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:32,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:20:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:32,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:20:32,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:32,823 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 03:20:32,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:32,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031231229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:32,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:20:32,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-11-14 03:20:32,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025392079] [2024-11-14 03:20:32,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:32,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:20:32,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:32,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:20:32,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:20:32,826 INFO L87 Difference]: Start difference. First operand 196 states and 236 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 03:20:33,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:33,307 INFO L93 Difference]: Finished difference Result 246 states and 293 transitions. [2024-11-14 03:20:33,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:20:33,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 25 [2024-11-14 03:20:33,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:33,310 INFO L225 Difference]: With dead ends: 246 [2024-11-14 03:20:33,310 INFO L226 Difference]: Without dead ends: 244 [2024-11-14 03:20:33,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:20:33,311 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 245 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:33,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 175 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:33,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-14 03:20:33,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 197. [2024-11-14 03:20:33,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 146 states have (on average 1.547945205479452) internal successors, (226), 189 states have internal predecessors, (226), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:33,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 236 transitions. [2024-11-14 03:20:33,323 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 236 transitions. Word has length 25 [2024-11-14 03:20:33,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:33,323 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 236 transitions. [2024-11-14 03:20:33,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 03:20:33,323 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 236 transitions. [2024-11-14 03:20:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:20:33,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:33,325 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:33,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:20:33,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 03:20:33,527 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:33,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:33,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1312253193, now seen corresponding path program 1 times [2024-11-14 03:20:33,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:33,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216331416] [2024-11-14 03:20:33,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:33,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:33,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:20:33,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:33,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216331416] [2024-11-14 03:20:33,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216331416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:33,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:33,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:20:33,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270200565] [2024-11-14 03:20:33,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:33,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:20:33,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:33,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:20:33,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:20:33,738 INFO L87 Difference]: Start difference. First operand 197 states and 236 transitions. Second operand has 5 states, 3 states have (on average 8.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:34,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:34,088 INFO L93 Difference]: Finished difference Result 197 states and 236 transitions. [2024-11-14 03:20:34,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:20:34,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 8.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-14 03:20:34,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:34,090 INFO L225 Difference]: With dead ends: 197 [2024-11-14 03:20:34,090 INFO L226 Difference]: Without dead ends: 195 [2024-11-14 03:20:34,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:20:34,091 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 118 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:34,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 121 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:20:34,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-14 03:20:34,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-14 03:20:34,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 146 states have (on average 1.5136986301369864) internal successors, (221), 187 states have internal predecessors, (221), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 231 transitions. [2024-11-14 03:20:34,103 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 231 transitions. Word has length 28 [2024-11-14 03:20:34,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:34,103 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 231 transitions. [2024-11-14 03:20:34,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 8.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:20:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 231 transitions. [2024-11-14 03:20:34,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 03:20:34,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:34,104 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:34,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 03:20:34,105 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:34,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:34,105 INFO L85 PathProgramCache]: Analyzing trace with hash -2025143236, now seen corresponding path program 1 times [2024-11-14 03:20:34,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:34,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504541947] [2024-11-14 03:20:34,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:34,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:34,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983791747] [2024-11-14 03:20:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:34,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:34,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:34,135 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:34,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:20:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:34,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:20:34,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:34,453 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 03:20:34,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:34,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:34,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504541947] [2024-11-14 03:20:34,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:34,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983791747] [2024-11-14 03:20:34,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983791747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:34,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:34,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:20:34,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830926542] [2024-11-14 03:20:34,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:34,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:20:34,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:34,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:20:34,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:20:34,456 INFO L87 Difference]: Start difference. First operand 195 states and 231 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:34,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:34,981 INFO L93 Difference]: Finished difference Result 238 states and 285 transitions. [2024-11-14 03:20:34,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:20:34,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-14 03:20:34,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:34,984 INFO L225 Difference]: With dead ends: 238 [2024-11-14 03:20:34,984 INFO L226 Difference]: Without dead ends: 236 [2024-11-14 03:20:34,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:20:34,986 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 247 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:34,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 110 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:34,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-14 03:20:34,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2024-11-14 03:20:34,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 150 states have (on average 1.4933333333333334) internal successors, (224), 191 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:34,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 234 transitions. [2024-11-14 03:20:34,999 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 234 transitions. Word has length 29 [2024-11-14 03:20:34,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:35,000 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 234 transitions. [2024-11-14 03:20:35,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:20:35,000 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 234 transitions. [2024-11-14 03:20:35,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 03:20:35,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:35,001 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:35,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 03:20:35,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 03:20:35,202 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:35,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:35,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1645069209, now seen corresponding path program 1 times [2024-11-14 03:20:35,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:35,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154120480] [2024-11-14 03:20:35,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:35,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:35,286 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 03:20:35,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:35,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154120480] [2024-11-14 03:20:35,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154120480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:35,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:35,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:35,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178501668] [2024-11-14 03:20:35,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:35,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:35,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:35,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:35,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:35,289 INFO L87 Difference]: Start difference. First operand 199 states and 234 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 03:20:35,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:35,739 INFO L93 Difference]: Finished difference Result 218 states and 259 transitions. [2024-11-14 03:20:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:20:35,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 30 [2024-11-14 03:20:35,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:35,742 INFO L225 Difference]: With dead ends: 218 [2024-11-14 03:20:35,742 INFO L226 Difference]: Without dead ends: 216 [2024-11-14 03:20:35,743 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 03:20:35,743 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 92 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:35,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 127 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:35,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-14 03:20:35,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 200. [2024-11-14 03:20:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 151 states have (on average 1.4834437086092715) internal successors, (224), 192 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:35,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 234 transitions. [2024-11-14 03:20:35,758 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 234 transitions. Word has length 30 [2024-11-14 03:20:35,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:35,758 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 234 transitions. [2024-11-14 03:20:35,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 03:20:35,758 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 234 transitions. [2024-11-14 03:20:35,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 03:20:35,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:35,759 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:35,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 03:20:35,760 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:35,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:35,760 INFO L85 PathProgramCache]: Analyzing trace with hash -542461986, now seen corresponding path program 1 times [2024-11-14 03:20:35,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:35,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100901508] [2024-11-14 03:20:35,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:35,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:35,841 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 03:20:35,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:35,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100901508] [2024-11-14 03:20:35,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100901508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:35,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:35,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:35,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072965134] [2024-11-14 03:20:35,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:35,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:35,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:35,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:35,843 INFO L87 Difference]: Start difference. First operand 200 states and 234 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 03:20:36,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:36,275 INFO L93 Difference]: Finished difference Result 218 states and 257 transitions. [2024-11-14 03:20:36,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:20:36,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 31 [2024-11-14 03:20:36,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:36,277 INFO L225 Difference]: With dead ends: 218 [2024-11-14 03:20:36,277 INFO L226 Difference]: Without dead ends: 216 [2024-11-14 03:20:36,278 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 03:20:36,278 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 67 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:36,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 140 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:36,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-14 03:20:36,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 201. [2024-11-14 03:20:36,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 152 states have (on average 1.4736842105263157) internal successors, (224), 193 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:36,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 234 transitions. [2024-11-14 03:20:36,290 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 234 transitions. Word has length 31 [2024-11-14 03:20:36,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:36,291 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 234 transitions. [2024-11-14 03:20:36,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 03:20:36,291 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 234 transitions. [2024-11-14 03:20:36,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 03:20:36,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:36,292 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:36,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 03:20:36,292 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:36,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:36,293 INFO L85 PathProgramCache]: Analyzing trace with hash -85866976, now seen corresponding path program 1 times [2024-11-14 03:20:36,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:36,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138987099] [2024-11-14 03:20:36,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:36,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:36,366 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 03:20:36,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:36,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138987099] [2024-11-14 03:20:36,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138987099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:36,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:36,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:20:36,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042074037] [2024-11-14 03:20:36,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:36,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:20:36,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:36,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:20:36,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:20:36,369 INFO L87 Difference]: Start difference. First operand 201 states and 234 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:36,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:36,736 INFO L93 Difference]: Finished difference Result 218 states and 255 transitions. [2024-11-14 03:20:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:20:36,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-11-14 03:20:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:36,738 INFO L225 Difference]: With dead ends: 218 [2024-11-14 03:20:36,738 INFO L226 Difference]: Without dead ends: 216 [2024-11-14 03:20:36,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:20:36,739 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 308 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:36,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 101 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:20:36,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-14 03:20:36,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2024-11-14 03:20:36,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 161 states have (on average 1.453416149068323) internal successors, (234), 202 states have internal predecessors, (234), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 244 transitions. [2024-11-14 03:20:36,751 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 244 transitions. Word has length 39 [2024-11-14 03:20:36,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:36,751 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 244 transitions. [2024-11-14 03:20:36,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:36,752 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 244 transitions. [2024-11-14 03:20:36,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 03:20:36,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:36,753 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:36,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 03:20:36,753 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:36,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:36,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1633091144, now seen corresponding path program 1 times [2024-11-14 03:20:36,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:36,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93867758] [2024-11-14 03:20:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:36,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:36,814 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 03:20:36,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:36,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93867758] [2024-11-14 03:20:36,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93867758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:36,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:36,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:36,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859820794] [2024-11-14 03:20:36,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:36,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:36,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:36,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:36,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:36,817 INFO L87 Difference]: Start difference. First operand 210 states and 244 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:20:36,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:36,963 INFO L93 Difference]: Finished difference Result 210 states and 244 transitions. [2024-11-14 03:20:36,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:20:36,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-14 03:20:36,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:36,965 INFO L225 Difference]: With dead ends: 210 [2024-11-14 03:20:36,965 INFO L226 Difference]: Without dead ends: 209 [2024-11-14 03:20:36,965 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 03:20:36,966 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 65 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:36,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 129 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:20:36,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-14 03:20:36,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-14 03:20:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 161 states have (on average 1.4409937888198758) internal successors, (232), 201 states have internal predecessors, (232), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:36,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 242 transitions. [2024-11-14 03:20:36,986 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 242 transitions. Word has length 40 [2024-11-14 03:20:36,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:36,987 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 242 transitions. [2024-11-14 03:20:36,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:20:36,988 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 242 transitions. [2024-11-14 03:20:36,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 03:20:36,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:36,989 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:36,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 03:20:36,989 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:36,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1737530314, now seen corresponding path program 1 times [2024-11-14 03:20:36,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:36,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941101429] [2024-11-14 03:20:36,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:36,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:37,109 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 03:20:37,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:37,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941101429] [2024-11-14 03:20:37,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941101429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:37,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:37,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:37,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637474655] [2024-11-14 03:20:37,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:37,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:37,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:37,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:37,113 INFO L87 Difference]: Start difference. First operand 209 states and 242 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:20:37,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:37,267 INFO L93 Difference]: Finished difference Result 224 states and 259 transitions. [2024-11-14 03:20:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:20:37,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-14 03:20:37,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:37,269 INFO L225 Difference]: With dead ends: 224 [2024-11-14 03:20:37,269 INFO L226 Difference]: Without dead ends: 222 [2024-11-14 03:20:37,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:37,271 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 17 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:37,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 291 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:20:37,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-14 03:20:37,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 219. [2024-11-14 03:20:37,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 171 states have (on average 1.432748538011696) internal successors, (245), 211 states have internal predecessors, (245), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:37,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 255 transitions. [2024-11-14 03:20:37,284 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 255 transitions. Word has length 42 [2024-11-14 03:20:37,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:37,284 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 255 transitions. [2024-11-14 03:20:37,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:20:37,285 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 255 transitions. [2024-11-14 03:20:37,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 03:20:37,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:37,286 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:37,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 03:20:37,287 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:37,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:37,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1976500780, now seen corresponding path program 1 times [2024-11-14 03:20:37,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:37,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884412740] [2024-11-14 03:20:37,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:37,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:37,431 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 03:20:37,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:37,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884412740] [2024-11-14 03:20:37,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884412740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:37,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:37,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:20:37,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609296973] [2024-11-14 03:20:37,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:37,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:20:37,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:37,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:20:37,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:20:37,435 INFO L87 Difference]: Start difference. First operand 219 states and 255 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:37,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:37,853 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2024-11-14 03:20:37,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:20:37,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42 [2024-11-14 03:20:37,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:37,859 INFO L225 Difference]: With dead ends: 220 [2024-11-14 03:20:37,859 INFO L226 Difference]: Without dead ends: 219 [2024-11-14 03:20:37,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:20:37,861 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 142 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:37,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 143 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:20:37,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-14 03:20:37,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-11-14 03:20:37,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 171 states have (on average 1.4269005847953216) internal successors, (244), 211 states have internal predecessors, (244), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 254 transitions. [2024-11-14 03:20:37,876 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 254 transitions. Word has length 42 [2024-11-14 03:20:37,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:37,877 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 254 transitions. [2024-11-14 03:20:37,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 254 transitions. [2024-11-14 03:20:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 03:20:37,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:37,878 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:37,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 03:20:37,878 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:37,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:37,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1141981916, now seen corresponding path program 1 times [2024-11-14 03:20:37,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:37,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527159006] [2024-11-14 03:20:37,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:37,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:37,982 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 03:20:37,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:37,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527159006] [2024-11-14 03:20:37,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527159006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:37,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:37,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:20:37,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225394829] [2024-11-14 03:20:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:37,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:20:37,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:20:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:37,985 INFO L87 Difference]: Start difference. First operand 219 states and 254 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:20:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:38,072 INFO L93 Difference]: Finished difference Result 258 states and 269 transitions. [2024-11-14 03:20:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:20:38,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2024-11-14 03:20:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:38,074 INFO L225 Difference]: With dead ends: 258 [2024-11-14 03:20:38,074 INFO L226 Difference]: Without dead ends: 256 [2024-11-14 03:20:38,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:20:38,075 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:38,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 288 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:20:38,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-14 03:20:38,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 227. [2024-11-14 03:20:38,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 179 states have (on average 1.4078212290502794) internal successors, (252), 219 states have internal predecessors, (252), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:38,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 262 transitions. [2024-11-14 03:20:38,096 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 262 transitions. Word has length 43 [2024-11-14 03:20:38,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:38,097 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 262 transitions. [2024-11-14 03:20:38,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:20:38,097 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 262 transitions. [2024-11-14 03:20:38,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 03:20:38,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:38,098 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:38,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-14 03:20:38,098 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:38,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:38,100 INFO L85 PathProgramCache]: Analyzing trace with hash -180142376, now seen corresponding path program 1 times [2024-11-14 03:20:38,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:38,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143087121] [2024-11-14 03:20:38,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:38,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:38,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1541160786] [2024-11-14 03:20:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:38,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:38,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:38,129 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:38,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:20:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:38,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:20:38,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:20:38,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:20:38,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:38,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143087121] [2024-11-14 03:20:38,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:38,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541160786] [2024-11-14 03:20:38,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541160786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:38,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:20:38,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:20:38,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008470120] [2024-11-14 03:20:38,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:38,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:20:38,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:38,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:20:38,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:20:38,531 INFO L87 Difference]: Start difference. First operand 227 states and 262 transitions. Second operand has 7 states, 5 states have (on average 7.8) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:20:38,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:38,889 INFO L93 Difference]: Finished difference Result 227 states and 262 transitions. [2024-11-14 03:20:38,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:20:38,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.8) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-14 03:20:38,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:38,891 INFO L225 Difference]: With dead ends: 227 [2024-11-14 03:20:38,891 INFO L226 Difference]: Without dead ends: 224 [2024-11-14 03:20:38,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:20:38,893 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 105 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:38,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 245 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:20:38,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-14 03:20:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-14 03:20:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 179 states have (on average 1.3743016759776536) internal successors, (246), 216 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2024-11-14 03:20:38,909 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 45 [2024-11-14 03:20:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:38,910 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2024-11-14 03:20:38,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.8) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:20:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2024-11-14 03:20:38,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 03:20:38,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:38,911 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:38,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 03:20:39,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-14 03:20:39,115 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:39,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:39,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1289446305, now seen corresponding path program 1 times [2024-11-14 03:20:39,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:39,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361423089] [2024-11-14 03:20:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:39,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:39,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1807670071] [2024-11-14 03:20:39,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:39,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:39,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:39,146 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:39,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:20:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:39,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:20:39,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:20:39,524 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:20:40,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:40,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361423089] [2024-11-14 03:20:40,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:40,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807670071] [2024-11-14 03:20:40,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807670071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:20:40,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2137929033] [2024-11-14 03:20:40,723 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:20:40,724 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:20:40,727 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:20:40,732 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:20:40,732 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:20:46,414 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 97 for LOIs [2024-11-14 03:20:46,491 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:20:46,512 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:20:50,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2137929033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:20:50,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:20:50,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 23 [2024-11-14 03:20:50,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723478147] [2024-11-14 03:20:50,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:20:50,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:20:50,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:20:50,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:20:50,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702 [2024-11-14 03:20:50,477 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand has 19 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:53,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:20:53,060 INFO L93 Difference]: Finished difference Result 239 states and 256 transitions. [2024-11-14 03:20:53,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 03:20:53,061 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 46 [2024-11-14 03:20:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:20:53,063 INFO L225 Difference]: With dead ends: 239 [2024-11-14 03:20:53,063 INFO L226 Difference]: Without dead ends: 224 [2024-11-14 03:20:53,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 57 SyntacticMatches, 22 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=230, Invalid=960, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 03:20:53,065 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 167 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:20:53,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 177 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:20:53,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-14 03:20:53,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 217. [2024-11-14 03:20:53,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 172 states have (on average 1.302325581395349) internal successors, (224), 209 states have internal predecessors, (224), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 03:20:53,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 234 transitions. [2024-11-14 03:20:53,089 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 234 transitions. Word has length 46 [2024-11-14 03:20:53,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:20:53,089 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 234 transitions. [2024-11-14 03:20:53,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:20:53,090 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 234 transitions. [2024-11-14 03:20:53,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 03:20:53,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:20:53,090 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:20:53,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:20:53,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:53,291 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:20:53,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:20:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2036817043, now seen corresponding path program 1 times [2024-11-14 03:20:53,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:20:53,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693100424] [2024-11-14 03:20:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:53,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:20:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:20:53,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873344426] [2024-11-14 03:20:53,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:53,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:53,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:53,327 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:53,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:20:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:53,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:20:53,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:20:53,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:20:54,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:20:54,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693100424] [2024-11-14 03:20:54,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:20:54,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873344426] [2024-11-14 03:20:54,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873344426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:20:54,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [149603755] [2024-11-14 03:20:54,635 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:20:54,635 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:20:54,635 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:20:54,636 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:20:54,636 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:20:58,370 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 03:20:58,441 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:20:58,458 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:21:02,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [149603755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:21:02,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:21:02,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 27 [2024-11-14 03:21:02,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96473028] [2024-11-14 03:21:02,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:21:02,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:21:02,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:02,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:21:02,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=791, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:21:02,886 INFO L87 Difference]: Start difference. First operand 217 states and 234 transitions. Second operand has 23 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:21:07,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:07,430 INFO L93 Difference]: Finished difference Result 281 states and 307 transitions. [2024-11-14 03:21:07,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 03:21:07,430 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2024-11-14 03:21:07,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:07,431 INFO L225 Difference]: With dead ends: 281 [2024-11-14 03:21:07,432 INFO L226 Difference]: Without dead ends: 265 [2024-11-14 03:21:07,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 65 SyntacticMatches, 22 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=385, Invalid=1595, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 03:21:07,433 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 583 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:07,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 180 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-14 03:21:07,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-14 03:21:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 254. [2024-11-14 03:21:07,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 208 states have (on average 1.2932692307692308) internal successors, (269), 245 states have internal predecessors, (269), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:21:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 281 transitions. [2024-11-14 03:21:07,453 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 281 transitions. Word has length 50 [2024-11-14 03:21:07,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:07,454 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 281 transitions. [2024-11-14 03:21:07,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:21:07,454 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 281 transitions. [2024-11-14 03:21:07,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-14 03:21:07,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:07,455 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:21:07,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:21:07,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 03:21:07,656 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:21:07,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:07,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1123910479, now seen corresponding path program 1 times [2024-11-14 03:21:07,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:07,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852324310] [2024-11-14 03:21:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:07,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:21:07,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240161900] [2024-11-14 03:21:07,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:07,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:07,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:07,682 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:21:07,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 03:21:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:07,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:21:07,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:21:08,046 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:08,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:08,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852324310] [2024-11-14 03:21:08,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:21:08,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240161900] [2024-11-14 03:21:08,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240161900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:21:08,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [293780716] [2024-11-14 03:21:08,401 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:21:08,401 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:21:08,402 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:21:08,402 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:21:08,402 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:21:11,462 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 03:21:11,497 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:21:11,506 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:21:17,849 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13055#(exists ((|v_ULTIMATE.start_main_~y~0#1_42| Int) (|v_ULTIMATE.start_main_~X~0#1_67| Int)) (and (<= |ULTIMATE.start_main_~Y~0#1| 50) (<= 0 (+ |ULTIMATE.start_main_~v~0#1| 100)) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |v_ULTIMATE.start_main_~X~0#1_67|) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~X~0#1_67| |v_ULTIMATE.start_main_~y~0#1_42|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= |v_ULTIMATE.start_main_~X~0#1_67| 50) (<= |v_ULTIMATE.start_main_~y~0#1_42| 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 51) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|)))' at error location [2024-11-14 03:21:17,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:21:17,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:21:17,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 03:21:17,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967325743] [2024-11-14 03:21:17,849 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:21:17,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:21:17,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:17,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:21:17,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=982, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:21:17,851 INFO L87 Difference]: Start difference. First operand 254 states and 281 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:21:18,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:18,188 INFO L93 Difference]: Finished difference Result 378 states and 431 transitions. [2024-11-14 03:21:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:21:18,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2024-11-14 03:21:18,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:18,190 INFO L225 Difference]: With dead ends: 378 [2024-11-14 03:21:18,190 INFO L226 Difference]: Without dead ends: 376 [2024-11-14 03:21:18,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 68 SyntacticMatches, 22 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=140, Invalid=982, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:21:18,191 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 280 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:18,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 276 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:21:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-14 03:21:18,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 334. [2024-11-14 03:21:18,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 286 states have (on average 1.3461538461538463) internal successors, (385), 323 states have internal predecessors, (385), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 03:21:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 401 transitions. [2024-11-14 03:21:18,217 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 401 transitions. Word has length 52 [2024-11-14 03:21:18,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:18,218 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 401 transitions. [2024-11-14 03:21:18,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:21:18,218 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 401 transitions. [2024-11-14 03:21:18,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 03:21:18,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:18,219 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:21:18,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-14 03:21:18,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 03:21:18,424 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:21:18,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:18,425 INFO L85 PathProgramCache]: Analyzing trace with hash -359750401, now seen corresponding path program 1 times [2024-11-14 03:21:18,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:18,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268190270] [2024-11-14 03:21:18,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:18,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:18,544 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 03:21:18,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268190270] [2024-11-14 03:21:18,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268190270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:21:18,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:21:18,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:21:18,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515542241] [2024-11-14 03:21:18,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:21:18,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:21:18,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:18,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:21:18,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:21:18,546 INFO L87 Difference]: Start difference. First operand 334 states and 401 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:21:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:18,936 INFO L93 Difference]: Finished difference Result 343 states and 410 transitions. [2024-11-14 03:21:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:21:18,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-11-14 03:21:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:18,938 INFO L225 Difference]: With dead ends: 343 [2024-11-14 03:21:18,939 INFO L226 Difference]: Without dead ends: 342 [2024-11-14 03:21:18,939 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 03:21:18,939 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 47 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:18,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 116 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:21:18,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-14 03:21:18,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 337. [2024-11-14 03:21:18,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 289 states have (on average 1.342560553633218) internal successors, (388), 326 states have internal predecessors, (388), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 03:21:18,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 404 transitions. [2024-11-14 03:21:18,962 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 404 transitions. Word has length 56 [2024-11-14 03:21:18,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:18,962 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 404 transitions. [2024-11-14 03:21:18,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:21:18,963 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 404 transitions. [2024-11-14 03:21:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 03:21:18,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:18,964 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:21:18,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-14 03:21:18,964 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:21:18,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:18,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1225133293, now seen corresponding path program 1 times [2024-11-14 03:21:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:18,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211772196] [2024-11-14 03:21:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:18,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:21:18,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605783959] [2024-11-14 03:21:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:18,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:18,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:18,987 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:21:18,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 03:21:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:19,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:21:19,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:21:19,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:21:20,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:20,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211772196] [2024-11-14 03:21:20,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:21:20,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605783959] [2024-11-14 03:21:20,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605783959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:21:20,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [637144122] [2024-11-14 03:21:20,435 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:21:20,435 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:21:20,436 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:21:20,436 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:21:20,436 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:21:23,203 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 03:21:23,259 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:21:23,272 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:21:28,662 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14891#(and (<= |ULTIMATE.start_main_~Y~0#1| 50) (<= 0 (+ |ULTIMATE.start_main_~v~0#1| 100)) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 4611686018427387904 (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 51) (<= 0 |ULTIMATE.start_main_~X~0#1|) (<= |ULTIMATE.start_main_~X~0#1| 50) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|))' at error location [2024-11-14 03:21:28,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:21:28,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:21:28,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-11-14 03:21:28,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845299329] [2024-11-14 03:21:28,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:21:28,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:21:28,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:28,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:21:28,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1098, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 03:21:28,664 INFO L87 Difference]: Start difference. First operand 337 states and 404 transitions. Second operand has 14 states, 12 states have (on average 8.0) internal successors, (96), 14 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:21:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:31,167 INFO L93 Difference]: Finished difference Result 521 states and 593 transitions. [2024-11-14 03:21:31,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 03:21:31,168 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.0) internal successors, (96), 14 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 56 [2024-11-14 03:21:31,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:31,170 INFO L225 Difference]: With dead ends: 521 [2024-11-14 03:21:31,170 INFO L226 Difference]: Without dead ends: 493 [2024-11-14 03:21:31,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 107 SyntacticMatches, 25 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=310, Invalid=2042, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 03:21:31,172 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 875 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:31,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 532 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 03:21:31,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-14 03:21:31,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 378. [2024-11-14 03:21:31,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 328 states have (on average 1.3414634146341464) internal successors, (440), 365 states have internal predecessors, (440), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:21:31,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 460 transitions. [2024-11-14 03:21:31,202 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 460 transitions. Word has length 56 [2024-11-14 03:21:31,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:31,202 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 460 transitions. [2024-11-14 03:21:31,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.0) internal successors, (96), 14 states have internal predecessors, (96), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:21:31,203 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 460 transitions. [2024-11-14 03:21:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 03:21:31,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:31,205 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:21:31,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 03:21:31,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 03:21:31,405 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:21:31,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:31,406 INFO L85 PathProgramCache]: Analyzing trace with hash 686218228, now seen corresponding path program 1 times [2024-11-14 03:21:31,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:21:31,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452349886] [2024-11-14 03:21:31,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:31,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:21:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:21:31,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246172603] [2024-11-14 03:21:31,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:31,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:31,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:31,435 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:21:31,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:21:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:31,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 03:21:31,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:32,094 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:21:32,094 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:21:33,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:33,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452349886] [2024-11-14 03:21:33,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:21:33,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246172603] [2024-11-14 03:21:33,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246172603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:21:33,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [155021308] [2024-11-14 03:21:33,396 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:21:33,396 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:21:33,397 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:21:33,397 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:21:33,397 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:21:36,172 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 03:21:36,203 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:21:36,211 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:21:44,940 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16253#(and (<= |ULTIMATE.start_main_~Y~0#1| 50) (<= 0 (+ |ULTIMATE.start_main_~v~0#1| 100)) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~x~0#1| 51) (<= |ULTIMATE.start_main_~y~0#1| 9223372036854775807))' at error location [2024-11-14 03:21:44,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:21:44,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:21:44,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2024-11-14 03:21:44,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159122338] [2024-11-14 03:21:44,940 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:21:44,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 03:21:44,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:21:44,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 03:21:44,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1691, Unknown=0, NotChecked=0, Total=1892 [2024-11-14 03:21:44,942 INFO L87 Difference]: Start difference. First operand 378 states and 460 transitions. Second operand has 22 states, 20 states have (on average 5.1) internal successors, (102), 22 states have internal predecessors, (102), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:21:48,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:22:01,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 03:22:03,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:03,317 INFO L93 Difference]: Finished difference Result 568 states and 696 transitions. [2024-11-14 03:22:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-14 03:22:03,317 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 5.1) internal successors, (102), 22 states have internal predecessors, (102), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 59 [2024-11-14 03:22:03,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:03,320 INFO L225 Difference]: With dead ends: 568 [2024-11-14 03:22:03,320 INFO L226 Difference]: Without dead ends: 563 [2024-11-14 03:22:03,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 107 SyntacticMatches, 26 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2166 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=702, Invalid=5304, Unknown=0, NotChecked=0, Total=6006 [2024-11-14 03:22:03,324 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 909 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:03,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 278 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2024-11-14 03:22:03,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-14 03:22:03,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 401. [2024-11-14 03:22:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 351 states have (on average 1.339031339031339) internal successors, (470), 388 states have internal predecessors, (470), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:22:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 490 transitions. [2024-11-14 03:22:03,365 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 490 transitions. Word has length 59 [2024-11-14 03:22:03,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:03,365 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 490 transitions. [2024-11-14 03:22:03,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 5.1) internal successors, (102), 22 states have internal predecessors, (102), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:22:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 490 transitions. [2024-11-14 03:22:03,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 03:22:03,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:03,367 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:22:03,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 03:22:03,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:03,568 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:22:03,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:03,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1222951194, now seen corresponding path program 1 times [2024-11-14 03:22:03,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:03,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733965104] [2024-11-14 03:22:03,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:03,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:22:03,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640609731] [2024-11-14 03:22:03,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:03,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:03,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:22:03,622 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:22:03,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 03:22:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:03,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:22:03,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:22:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:22:04,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:22:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:22:04,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733965104] [2024-11-14 03:22:04,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:22:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640609731] [2024-11-14 03:22:04,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640609731] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:22:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2008636205] [2024-11-14 03:22:04,388 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:22:04,388 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:22:04,388 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:22:04,389 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:22:04,389 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:22:07,030 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 03:22:07,075 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:22:07,092 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:22:13,231 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17764#(exists ((|v_ULTIMATE.start_main_~Y~0#1_85| Int) (|v_ULTIMATE.start_main_~X~0#1_73| Int) (|v_ULTIMATE.start_main_~v~0#1_73| Int) (|v_ULTIMATE.start_main_~yx~0#1_86| Int) (|v_ULTIMATE.start_main_~xy~0#1_86| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_85|) (<= 0 |v_ULTIMATE.start_main_~X~0#1_73|) (<= 0 |v_ULTIMATE.start_main_~xy~0#1_86|) (<= (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_85|) 9223372036854775809 (* 2 |v_ULTIMATE.start_main_~yx~0#1_86|)) (+ |v_ULTIMATE.start_main_~X~0#1_73| |v_ULTIMATE.start_main_~v~0#1_73| (* 2 |v_ULTIMATE.start_main_~xy~0#1_86|))) (<= (+ |v_ULTIMATE.start_main_~X~0#1_73| (* 2 |v_ULTIMATE.start_main_~xy~0#1_86|)) (+ 9223372036854775808 (* 2 |v_ULTIMATE.start_main_~yx~0#1_86|))) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_86|) (<= |v_ULTIMATE.start_main_~xy~0#1_86| 4611686018427387903) (<= |v_ULTIMATE.start_main_~X~0#1_73| 50) (<= |v_ULTIMATE.start_main_~yx~0#1_86| 2550) (<= |ULTIMATE.start_main_~x~0#1| 51) (<= |v_ULTIMATE.start_main_~v~0#1_73| 9223372036854775807) (<= |ULTIMATE.start_main_~y~0#1| 9223372036854775807) (<= |v_ULTIMATE.start_main_~Y~0#1_85| 50)))' at error location [2024-11-14 03:22:13,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:22:13,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:22:13,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-14 03:22:13,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343920907] [2024-11-14 03:22:13,232 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:22:13,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 03:22:13,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:13,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 03:22:13,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1276, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:22:13,233 INFO L87 Difference]: Start difference. First operand 401 states and 490 transitions. Second operand has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:22:15,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:15,631 INFO L93 Difference]: Finished difference Result 554 states and 701 transitions. [2024-11-14 03:22:15,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:22:15,631 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 65 [2024-11-14 03:22:15,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:15,633 INFO L225 Difference]: With dead ends: 554 [2024-11-14 03:22:15,633 INFO L226 Difference]: Without dead ends: 552 [2024-11-14 03:22:15,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 126 SyntacticMatches, 31 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=271, Invalid=2279, Unknown=0, NotChecked=0, Total=2550 [2024-11-14 03:22:15,634 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 299 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:15,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 278 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 03:22:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-14 03:22:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 497. [2024-11-14 03:22:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 445 states have (on average 1.3820224719101124) internal successors, (615), 482 states have internal predecessors, (615), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:22:15,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 639 transitions. [2024-11-14 03:22:15,667 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 639 transitions. Word has length 65 [2024-11-14 03:22:15,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:15,668 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 639 transitions. [2024-11-14 03:22:15,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.266666666666667) internal successors, (109), 16 states have internal predecessors, (109), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:22:15,668 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 639 transitions. [2024-11-14 03:22:15,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:22:15,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:15,669 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 03:22:15,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 03:22:15,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-14 03:22:15,874 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:22:15,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:15,875 INFO L85 PathProgramCache]: Analyzing trace with hash -49250434, now seen corresponding path program 1 times [2024-11-14 03:22:15,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:15,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925671546] [2024-11-14 03:22:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:15,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:22:15,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:15,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925671546] [2024-11-14 03:22:15,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925671546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:22:15,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:22:15,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:22:15,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062116073] [2024-11-14 03:22:15,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:22:15,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:22:15,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:22:15,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:22:15,982 INFO L87 Difference]: Start difference. First operand 497 states and 639 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:22:16,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:16,774 INFO L93 Difference]: Finished difference Result 497 states and 639 transitions. [2024-11-14 03:22:16,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:22:16,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 71 [2024-11-14 03:22:16,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:16,777 INFO L225 Difference]: With dead ends: 497 [2024-11-14 03:22:16,777 INFO L226 Difference]: Without dead ends: 496 [2024-11-14 03:22:16,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:22:16,778 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 142 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:16,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 95 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:22:16,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-14 03:22:16,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2024-11-14 03:22:16,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 445 states have (on average 1.3707865168539326) internal successors, (610), 481 states have internal predecessors, (610), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:22:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 634 transitions. [2024-11-14 03:22:16,828 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 634 transitions. Word has length 71 [2024-11-14 03:22:16,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:16,829 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 634 transitions. [2024-11-14 03:22:16,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:22:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 634 transitions. [2024-11-14 03:22:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:22:16,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:16,831 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 03:22:16,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-14 03:22:16,831 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:22:16,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:16,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1526763311, now seen corresponding path program 1 times [2024-11-14 03:22:16,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:16,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424581020] [2024-11-14 03:22:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:16,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:22:17,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:17,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424581020] [2024-11-14 03:22:17,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424581020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:22:17,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:22:17,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:22:17,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768728881] [2024-11-14 03:22:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:22:17,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:22:17,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:22:17,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:22:17,070 INFO L87 Difference]: Start difference. First operand 496 states and 634 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:22:18,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:18,397 INFO L93 Difference]: Finished difference Result 496 states and 634 transitions. [2024-11-14 03:22:18,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:22:18,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 72 [2024-11-14 03:22:18,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:18,399 INFO L225 Difference]: With dead ends: 496 [2024-11-14 03:22:18,399 INFO L226 Difference]: Without dead ends: 494 [2024-11-14 03:22:18,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:22:18,400 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 139 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:18,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 95 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 03:22:18,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-11-14 03:22:18,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 488. [2024-11-14 03:22:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 439 states have (on average 1.3485193621867881) internal successors, (592), 473 states have internal predecessors, (592), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:22:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 616 transitions. [2024-11-14 03:22:18,440 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 616 transitions. Word has length 72 [2024-11-14 03:22:18,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:18,441 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 616 transitions. [2024-11-14 03:22:18,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:22:18,441 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 616 transitions. [2024-11-14 03:22:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 03:22:18,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:18,442 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 03:22:18,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-14 03:22:18,442 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:22:18,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:18,443 INFO L85 PathProgramCache]: Analyzing trace with hash -101989310, now seen corresponding path program 1 times [2024-11-14 03:22:18,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:18,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450822595] [2024-11-14 03:22:18,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:18,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:22:18,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:18,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450822595] [2024-11-14 03:22:18,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450822595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:22:18,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807269396] [2024-11-14 03:22:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:18,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:18,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:22:18,659 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:22:18,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 03:22:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:18,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:22:18,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:22:19,072 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:22:19,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:22:19,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807269396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:22:19,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:22:19,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-14 03:22:19,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781093741] [2024-11-14 03:22:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:22:19,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:22:19,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:19,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:22:19,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:22:19,075 INFO L87 Difference]: Start difference. First operand 488 states and 616 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:22:20,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:20,308 INFO L93 Difference]: Finished difference Result 518 states and 647 transitions. [2024-11-14 03:22:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:22:20,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 75 [2024-11-14 03:22:20,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:20,310 INFO L225 Difference]: With dead ends: 518 [2024-11-14 03:22:20,310 INFO L226 Difference]: Without dead ends: 517 [2024-11-14 03:22:20,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:22:20,311 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 190 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:20,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 313 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:22:20,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-14 03:22:20,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 489. [2024-11-14 03:22:20,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 440 states have (on average 1.3477272727272727) internal successors, (593), 474 states have internal predecessors, (593), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:22:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 617 transitions. [2024-11-14 03:22:20,348 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 617 transitions. Word has length 75 [2024-11-14 03:22:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:20,349 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 617 transitions. [2024-11-14 03:22:20,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:22:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 617 transitions. [2024-11-14 03:22:20,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:22:20,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:20,350 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 03:22:20,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 03:22:20,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:20,554 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:22:20,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:20,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1133298837, now seen corresponding path program 1 times [2024-11-14 03:22:20,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:20,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782088874] [2024-11-14 03:22:20,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:20,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:22:20,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:20,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782088874] [2024-11-14 03:22:20,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782088874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:22:20,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680986405] [2024-11-14 03:22:20,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:20,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:20,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:22:20,812 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:22:20,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 03:22:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:20,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:22:20,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:22:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 03:22:21,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:22:21,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680986405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:22:21,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:22:21,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-14 03:22:21,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043164455] [2024-11-14 03:22:21,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:22:21,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:22:21,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:21,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:22:21,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:22:21,032 INFO L87 Difference]: Start difference. First operand 489 states and 617 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:22:21,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:21,257 INFO L93 Difference]: Finished difference Result 517 states and 646 transitions. [2024-11-14 03:22:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:22:21,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 76 [2024-11-14 03:22:21,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:21,261 INFO L225 Difference]: With dead ends: 517 [2024-11-14 03:22:21,261 INFO L226 Difference]: Without dead ends: 516 [2024-11-14 03:22:21,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:22:21,262 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 143 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:21,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 226 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:22:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-14 03:22:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 490. [2024-11-14 03:22:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 441 states have (on average 1.346938775510204) internal successors, (594), 475 states have internal predecessors, (594), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:22:21,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 618 transitions. [2024-11-14 03:22:21,304 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 618 transitions. Word has length 76 [2024-11-14 03:22:21,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:21,305 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 618 transitions. [2024-11-14 03:22:21,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:22:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 618 transitions. [2024-11-14 03:22:21,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:22:21,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:21,306 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 03:22:21,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-14 03:22:21,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:21,507 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:22:21,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:21,507 INFO L85 PathProgramCache]: Analyzing trace with hash 772525732, now seen corresponding path program 1 times [2024-11-14 03:22:21,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:21,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813115107] [2024-11-14 03:22:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:21,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:21,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:21,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813115107] [2024-11-14 03:22:21,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813115107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:22:21,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333862781] [2024-11-14 03:22:21,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:21,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:21,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:22:21,645 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:22:21,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 03:22:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:21,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:22:21,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:22:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:21,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:22:22,001 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:22,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333862781] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:22:22,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [628596260] [2024-11-14 03:22:22,003 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-14 03:22:22,003 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:22:22,003 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:22:22,003 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:22:22,003 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:22:24,025 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 45 for LOIs [2024-11-14 03:22:24,032 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:22:24,047 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:22:27,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [628596260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:22:27,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:22:27,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [6, 6, 6] total 29 [2024-11-14 03:22:27,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515486268] [2024-11-14 03:22:27,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:22:27,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 03:22:27,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:27,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 03:22:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2024-11-14 03:22:27,299 INFO L87 Difference]: Start difference. First operand 490 states and 618 transitions. Second operand has 22 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:22:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:30,410 INFO L93 Difference]: Finished difference Result 505 states and 635 transitions. [2024-11-14 03:22:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 03:22:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 77 [2024-11-14 03:22:30,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:30,412 INFO L225 Difference]: With dead ends: 505 [2024-11-14 03:22:30,412 INFO L226 Difference]: Without dead ends: 502 [2024-11-14 03:22:30,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 169 SyntacticMatches, 38 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=230, Invalid=1330, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:22:30,414 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 533 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:30,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 170 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 03:22:30,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-14 03:22:30,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 501. [2024-11-14 03:22:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 452 states have (on average 1.342920353982301) internal successors, (607), 486 states have internal predecessors, (607), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:22:30,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 631 transitions. [2024-11-14 03:22:30,454 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 631 transitions. Word has length 77 [2024-11-14 03:22:30,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:30,454 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 631 transitions. [2024-11-14 03:22:30,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:22:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 631 transitions. [2024-11-14 03:22:30,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:22:30,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:30,456 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 03:22:30,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-14 03:22:30,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:30,657 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:22:30,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:30,657 INFO L85 PathProgramCache]: Analyzing trace with hash -2120439278, now seen corresponding path program 1 times [2024-11-14 03:22:30,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:30,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552575850] [2024-11-14 03:22:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:30,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:22:30,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733235728] [2024-11-14 03:22:30,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:30,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:30,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:22:30,676 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:22:30,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 03:22:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:30,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:22:30,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:22:30,996 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:30,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:22:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:31,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:31,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552575850] [2024-11-14 03:22:31,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:22:31,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733235728] [2024-11-14 03:22:31,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733235728] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:22:31,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [266092154] [2024-11-14 03:22:31,247 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-14 03:22:31,247 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:22:31,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:22:31,248 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:22:31,248 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:22:33,769 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 03:22:33,775 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:22:33,784 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:22:39,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [266092154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:22:39,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:22:39,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [7, 7] total 38 [2024-11-14 03:22:39,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647679711] [2024-11-14 03:22:39,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:22:39,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 03:22:39,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:39,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 03:22:39,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1302, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 03:22:39,463 INFO L87 Difference]: Start difference. First operand 501 states and 631 transitions. Second operand has 27 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:22:46,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:46,154 INFO L93 Difference]: Finished difference Result 561 states and 710 transitions. [2024-11-14 03:22:46,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:22:46,158 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 77 [2024-11-14 03:22:46,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:46,160 INFO L225 Difference]: With dead ends: 561 [2024-11-14 03:22:46,160 INFO L226 Difference]: Without dead ends: 557 [2024-11-14 03:22:46,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 158 SyntacticMatches, 34 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=492, Invalid=2588, Unknown=0, NotChecked=0, Total=3080 [2024-11-14 03:22:46,163 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 377 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:46,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 161 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-14 03:22:46,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-14 03:22:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 536. [2024-11-14 03:22:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 487 states have (on average 1.3388090349075976) internal successors, (652), 521 states have internal predecessors, (652), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:22:46,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 676 transitions. [2024-11-14 03:22:46,206 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 676 transitions. Word has length 77 [2024-11-14 03:22:46,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:46,207 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 676 transitions. [2024-11-14 03:22:46,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 22 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:22:46,207 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 676 transitions. [2024-11-14 03:22:46,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:22:46,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:46,209 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:22:46,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 03:22:46,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-14 03:22:46,413 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:22:46,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:46,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1921334827, now seen corresponding path program 1 times [2024-11-14 03:22:46,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:46,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308981115] [2024-11-14 03:22:46,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:46,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:46,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:46,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308981115] [2024-11-14 03:22:46,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308981115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:22:46,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531098661] [2024-11-14 03:22:46,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:46,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:46,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:22:46,589 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:22:46,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 03:22:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:46,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:22:46,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:22:47,149 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:47,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:22:47,528 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:47,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531098661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:22:47,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [144352916] [2024-11-14 03:22:47,529 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:22:47,530 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:22:47,530 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:22:47,530 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:22:47,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:22:50,089 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 03:22:50,126 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:22:50,136 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:22:57,035 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27347#(exists ((|v_ULTIMATE.start_main_~X~0#1_75| Int) (|v_ULTIMATE.start_main_~Y~0#1_87| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 |ULTIMATE.start_main_~yx~0#1|) (<= |ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_main_~X~0#1_75|) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_87|) (<= 0 |ULTIMATE.start_main_~xy~0#1|) (<= |v_ULTIMATE.start_main_~Y~0#1_87| 50) (<= |v_ULTIMATE.start_main_~X~0#1_75| 50)))' at error location [2024-11-14 03:22:57,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:22:57,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:22:57,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2024-11-14 03:22:57,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704188574] [2024-11-14 03:22:57,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:22:57,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-14 03:22:57,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:57,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-14 03:22:57,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1375, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:22:57,037 INFO L87 Difference]: Start difference. First operand 536 states and 676 transitions. Second operand has 18 states, 17 states have (on average 11.235294117647058) internal successors, (191), 18 states have internal predecessors, (191), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 03:22:58,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:58,300 INFO L93 Difference]: Finished difference Result 861 states and 1065 transitions. [2024-11-14 03:22:58,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 03:22:58,301 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 11.235294117647058) internal successors, (191), 18 states have internal predecessors, (191), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 77 [2024-11-14 03:22:58,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:58,303 INFO L225 Difference]: With dead ends: 861 [2024-11-14 03:22:58,304 INFO L226 Difference]: Without dead ends: 860 [2024-11-14 03:22:58,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 160 SyntacticMatches, 37 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1573 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=441, Invalid=2639, Unknown=0, NotChecked=0, Total=3080 [2024-11-14 03:22:58,305 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 1045 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:58,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 409 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:22:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-14 03:22:58,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 688. [2024-11-14 03:22:58,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 634 states have (on average 1.3422712933753944) internal successors, (851), 668 states have internal predecessors, (851), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 03:22:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 885 transitions. [2024-11-14 03:22:58,360 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 885 transitions. Word has length 77 [2024-11-14 03:22:58,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:58,361 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 885 transitions. [2024-11-14 03:22:58,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 11.235294117647058) internal successors, (191), 18 states have internal predecessors, (191), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-14 03:22:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 885 transitions. [2024-11-14 03:22:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:22:58,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:58,362 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 03:22:58,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 03:22:58,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-14 03:22:58,566 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:22:58,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:58,566 INFO L85 PathProgramCache]: Analyzing trace with hash -855759047, now seen corresponding path program 1 times [2024-11-14 03:22:58,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:58,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460642877] [2024-11-14 03:22:58,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:58,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:58,660 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:58,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:58,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460642877] [2024-11-14 03:22:58,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460642877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:22:58,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878103623] [2024-11-14 03:22:58,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:58,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:22:58,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:22:58,663 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:22:58,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 03:22:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:58,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:22:58,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:22:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:58,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:22:58,991 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:22:58,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878103623] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:22:58,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1106532658] [2024-11-14 03:22:58,993 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:22:58,994 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:22:58,994 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:22:58,994 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:22:58,994 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:03,027 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:23:03,060 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:23:03,069 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:10,407 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29498#(and (exists ((|v_ULTIMATE.start_main_#t~post7#1_75| Int)) (and (or (and (<= (* 2 |ULTIMATE.start_main_~Y~0#1|) (+ |ULTIMATE.start_main_~v~0#1| (* 2 |ULTIMATE.start_main_~X~0#1|))) (<= |v_ULTIMATE.start_main_#t~post7#1_75| |ULTIMATE.start_main_~X~0#1|) (<= |ULTIMATE.start_main_~X~0#1| (+ |ULTIMATE.start_main_~Y~0#1| 4611686018427387904))) (and (<= |ULTIMATE.start_main_~Y~0#1| 4611686018427387903) (<= |v_ULTIMATE.start_main_#t~post7#1_75| |ULTIMATE.start_main_~X~0#1|) (<= (+ |ULTIMATE.start_main_~v~0#1| 1) (* 2 |ULTIMATE.start_main_~Y~0#1|)))) (<= 9223372036854775807 |v_ULTIMATE.start_main_#t~post7#1_75|))) (or (and (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~y~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|))) (and (<= |ULTIMATE.start_main_~Y~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775805) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))))' at error location [2024-11-14 03:23:10,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:10,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:10,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-14 03:23:10,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998361552] [2024-11-14 03:23:10,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:10,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:23:10,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:10,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:23:10,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2713, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 03:23:10,409 INFO L87 Difference]: Start difference. First operand 688 states and 885 transitions. Second operand has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:23:10,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:10,646 INFO L93 Difference]: Finished difference Result 1019 states and 1278 transitions. [2024-11-14 03:23:10,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:23:10,647 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 78 [2024-11-14 03:23:10,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:10,651 INFO L225 Difference]: With dead ends: 1019 [2024-11-14 03:23:10,651 INFO L226 Difference]: Without dead ends: 1018 [2024-11-14 03:23:10,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 182 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1214 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=257, Invalid=2713, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 03:23:10,654 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 94 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:10,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 450 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:23:10,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2024-11-14 03:23:10,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 928. [2024-11-14 03:23:10,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 868 states have (on average 1.3214285714285714) internal successors, (1147), 902 states have internal predecessors, (1147), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 03:23:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1193 transitions. [2024-11-14 03:23:10,751 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1193 transitions. Word has length 78 [2024-11-14 03:23:10,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:10,751 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1193 transitions. [2024-11-14 03:23:10,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 12 states have internal predecessors, (158), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:23:10,752 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1193 transitions. [2024-11-14 03:23:10,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:23:10,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:10,753 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:23:10,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-14 03:23:10,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 03:23:10,953 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:23:10,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:10,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1309108031, now seen corresponding path program 1 times [2024-11-14 03:23:10,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:10,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186003736] [2024-11-14 03:23:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:10,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:23:10,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412943795] [2024-11-14 03:23:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:10,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:10,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:10,978 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:10,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 03:23:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:11,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:23:11,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:11,345 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:23:11,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:23:11,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:11,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186003736] [2024-11-14 03:23:11,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:23:11,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412943795] [2024-11-14 03:23:11,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412943795] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:11,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [133307563] [2024-11-14 03:23:11,974 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2024-11-14 03:23:11,975 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:11,975 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:11,975 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:11,975 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:14,970 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 03:23:14,978 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:23:14,989 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:23,249 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32060#(and (exists ((|v_ULTIMATE.start_main_~yx~0#1_117| Int) (|v_ULTIMATE.start_main_~x~0#1_105| Int)) (and (<= |ULTIMATE.start_main_~Y~0#1| 50) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= (+ |ULTIMATE.start_main_~X~0#1| 1) |v_ULTIMATE.start_main_~x~0#1_105|) (<= (* |v_ULTIMATE.start_main_~x~0#1_105| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_117|) (<= 4611686018427387904 (* |v_ULTIMATE.start_main_~x~0#1_105| |ULTIMATE.start_main_~y~0#1|)) (<= 0 |ULTIMATE.start_main_~X~0#1|) (<= |ULTIMATE.start_main_~X~0#1| 50) (= |ULTIMATE.start_main_~yx~0#1| (* |v_ULTIMATE.start_main_~x~0#1_105| |ULTIMATE.start_main_~Y~0#1|)))) (<= |ULTIMATE.start_main_~yx~0#1| 4611686018427387903))' at error location [2024-11-14 03:23:23,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:23,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:23:23,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-14 03:23:23,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136963674] [2024-11-14 03:23:23,250 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:23,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:23:23,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:23,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:23:23,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1430, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:23:23,252 INFO L87 Difference]: Start difference. First operand 928 states and 1193 transitions. Second operand has 14 states, 13 states have (on average 9.923076923076923) internal successors, (129), 14 states have internal predecessors, (129), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:23:27,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:27,290 INFO L93 Difference]: Finished difference Result 965 states and 1226 transitions. [2024-11-14 03:23:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 03:23:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.923076923076923) internal successors, (129), 14 states have internal predecessors, (129), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 78 [2024-11-14 03:23:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:27,293 INFO L225 Difference]: With dead ends: 965 [2024-11-14 03:23:27,293 INFO L226 Difference]: Without dead ends: 963 [2024-11-14 03:23:27,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 160 SyntacticMatches, 34 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1137 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=210, Invalid=2340, Unknown=0, NotChecked=0, Total=2550 [2024-11-14 03:23:27,294 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 189 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:27,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 637 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-14 03:23:27,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-14 03:23:27,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 936. [2024-11-14 03:23:27,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 876 states have (on average 1.317351598173516) internal successors, (1154), 910 states have internal predecessors, (1154), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 03:23:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1200 transitions. [2024-11-14 03:23:27,383 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1200 transitions. Word has length 78 [2024-11-14 03:23:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:27,384 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1200 transitions. [2024-11-14 03:23:27,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.923076923076923) internal successors, (129), 14 states have internal predecessors, (129), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:23:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1200 transitions. [2024-11-14 03:23:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:23:27,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:27,385 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:27,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-14 03:23:27,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-14 03:23:27,585 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:23:27,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash 433172375, now seen corresponding path program 1 times [2024-11-14 03:23:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:27,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969181549] [2024-11-14 03:23:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:23:27,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:27,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969181549] [2024-11-14 03:23:27,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969181549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:27,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095257272] [2024-11-14 03:23:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:27,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:27,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:27,713 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:27,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 03:23:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:27,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:23:27,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:27,910 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:23:27,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:28,079 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:23:28,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095257272] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:28,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1274129824] [2024-11-14 03:23:28,081 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 03:23:28,081 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:28,082 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:28,082 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:28,082 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:30,932 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-14 03:23:30,973 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:23:30,984 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:36,076 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34585#(and (<= |ULTIMATE.start_main_~Y~0#1| 50) (<= (* 2 |ULTIMATE.start_main_~Y~0#1|) (+ |ULTIMATE.start_main_~v~0#1| (* 2 |ULTIMATE.start_main_~X~0#1|))) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~X~0#1|) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= 0 |ULTIMATE.start_main_~yx~0#1|) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~xy~0#1|) (<= |ULTIMATE.start_main_~X~0#1| 50))' at error location [2024-11-14 03:23:36,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:36,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:36,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-14 03:23:36,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283472470] [2024-11-14 03:23:36,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:36,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:23:36,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:36,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:23:36,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:23:36,079 INFO L87 Difference]: Start difference. First operand 936 states and 1200 transitions. Second operand has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:23:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:36,328 INFO L93 Difference]: Finished difference Result 1128 states and 1381 transitions. [2024-11-14 03:23:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:23:36,329 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 79 [2024-11-14 03:23:36,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:36,331 INFO L225 Difference]: With dead ends: 1128 [2024-11-14 03:23:36,331 INFO L226 Difference]: Without dead ends: 1127 [2024-11-14 03:23:36,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 170 SyntacticMatches, 38 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1274 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:23:36,332 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 271 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:36,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 746 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:23:36,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2024-11-14 03:23:36,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 989. [2024-11-14 03:23:36,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 928 states have (on average 1.3189655172413792) internal successors, (1224), 962 states have internal predecessors, (1224), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-14 03:23:36,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1272 transitions. [2024-11-14 03:23:36,424 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1272 transitions. Word has length 79 [2024-11-14 03:23:36,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:36,424 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1272 transitions. [2024-11-14 03:23:36,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.636363636363637) internal successors, (161), 12 states have internal predecessors, (161), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-14 03:23:36,425 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1272 transitions. [2024-11-14 03:23:36,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:23:36,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:36,426 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:36,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 03:23:36,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:36,630 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:23:36,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:36,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1008150588, now seen corresponding path program 1 times [2024-11-14 03:23:36,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:36,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841943388] [2024-11-14 03:23:36,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:36,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:23:36,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622971837] [2024-11-14 03:23:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:36,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:36,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:36,652 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:36,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 03:23:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:36,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 03:23:36,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:23:37,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:38,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:38,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841943388] [2024-11-14 03:23:38,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:23:38,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622971837] [2024-11-14 03:23:38,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622971837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:38,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1466984107] [2024-11-14 03:23:38,259 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:23:38,259 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:38,259 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:38,259 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:38,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:42,331 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:23:42,370 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:23:42,379 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:51,495 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37131#(and (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~Y~0#1_88| Int) (|v_ULTIMATE.start_main_~x~0#1_120| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_120| |v_ULTIMATE.start_main_~Y~0#1_88|)) (<= 0 (+ |v_ULTIMATE.start_main_~Y~0#1_88| 13835058055282163713)) (<= |v_ULTIMATE.start_main_~x~0#1_120| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~x~0#1_120| 9223372036854775808)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 03:23:51,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:51,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:23:51,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 03:23:51,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409503908] [2024-11-14 03:23:51,496 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:51,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:23:51,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:51,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:23:51,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=3126, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 03:23:51,498 INFO L87 Difference]: Start difference. First operand 989 states and 1272 transitions. Second operand has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:23:52,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:52,531 INFO L93 Difference]: Finished difference Result 1006 states and 1283 transitions. [2024-11-14 03:23:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:23:52,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 81 [2024-11-14 03:23:52,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:52,535 INFO L225 Difference]: With dead ends: 1006 [2024-11-14 03:23:52,535 INFO L226 Difference]: Without dead ends: 1005 [2024-11-14 03:23:52,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=360, Invalid=4196, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 03:23:52,537 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 218 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:52,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 470 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:23:52,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-14 03:23:52,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 989. [2024-11-14 03:23:52,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 928 states have (on average 1.3178879310344827) internal successors, (1223), 962 states have internal predecessors, (1223), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-14 03:23:52,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1271 transitions. [2024-11-14 03:23:52,596 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1271 transitions. Word has length 81 [2024-11-14 03:23:52,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:52,597 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1271 transitions. [2024-11-14 03:23:52,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 12 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:23:52,597 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1271 transitions. [2024-11-14 03:23:52,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:23:52,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:52,599 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:52,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-14 03:23:52,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:52,803 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:23:52,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:52,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1275430944, now seen corresponding path program 2 times [2024-11-14 03:23:52,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:52,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959520306] [2024-11-14 03:23:52,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:52,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:23:52,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1790761881] [2024-11-14 03:23:52,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:23:52,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:52,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:52,831 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:52,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 03:23:52,893 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:23:52,893 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:23:52,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:23:52,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:53,398 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 03:23:53,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:53,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:53,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959520306] [2024-11-14 03:23:53,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:23:53,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790761881] [2024-11-14 03:23:53,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790761881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:53,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [569407497] [2024-11-14 03:23:53,986 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:23:53,986 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:53,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:53,987 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:53,987 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:58,109 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:23:58,169 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:23:58,184 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:24:07,188 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '39578#(and (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~x~0#1_127| Int) (|v_ULTIMATE.start_main_~Y~0#1_89| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_127| |v_ULTIMATE.start_main_~Y~0#1_89|)) (<= 0 (+ |v_ULTIMATE.start_main_~Y~0#1_89| 13835058055282163713)) (<= 0 (+ |v_ULTIMATE.start_main_~x~0#1_127| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~x~0#1_127| 9223372036854775807))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 03:24:07,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:24:07,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:24:07,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 03:24:07,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453451502] [2024-11-14 03:24:07,189 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:24:07,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:24:07,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:07,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:24:07,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=2690, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 03:24:07,192 INFO L87 Difference]: Start difference. First operand 989 states and 1271 transitions. Second operand has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:24:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:07,556 INFO L93 Difference]: Finished difference Result 989 states and 1271 transitions. [2024-11-14 03:24:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:24:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 81 [2024-11-14 03:24:07,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:07,560 INFO L225 Difference]: With dead ends: 989 [2024-11-14 03:24:07,560 INFO L226 Difference]: Without dead ends: 987 [2024-11-14 03:24:07,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 03:24:07,563 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 176 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:07,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 143 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:24:07,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2024-11-14 03:24:07,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 777. [2024-11-14 03:24:07,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 723 states have (on average 1.309820193637621) internal successors, (947), 755 states have internal predecessors, (947), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-14 03:24:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 985 transitions. [2024-11-14 03:24:07,632 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 985 transitions. Word has length 81 [2024-11-14 03:24:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:07,632 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 985 transitions. [2024-11-14 03:24:07,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:24:07,632 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 985 transitions. [2024-11-14 03:24:07,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:24:07,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:07,633 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:07,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-14 03:24:07,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:07,834 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:24:07,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:07,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2016298437, now seen corresponding path program 1 times [2024-11-14 03:24:07,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:07,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245487865] [2024-11-14 03:24:07,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:07,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:24:07,929 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:24:07,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:07,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245487865] [2024-11-14 03:24:07,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245487865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:24:07,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752933375] [2024-11-14 03:24:07,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:07,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:07,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:24:07,933 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:24:07,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 03:24:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:24:08,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:24:08,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:08,194 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:24:08,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:24:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:24:08,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752933375] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:24:08,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:24:08,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-11-14 03:24:08,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97434390] [2024-11-14 03:24:08,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:24:08,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:24:08,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:08,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:24:08,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:24:08,474 INFO L87 Difference]: Start difference. First operand 777 states and 985 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:24:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:09,041 INFO L93 Difference]: Finished difference Result 945 states and 1213 transitions. [2024-11-14 03:24:09,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:24:09,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 82 [2024-11-14 03:24:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:09,044 INFO L225 Difference]: With dead ends: 945 [2024-11-14 03:24:09,044 INFO L226 Difference]: Without dead ends: 943 [2024-11-14 03:24:09,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:24:09,045 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 108 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:09,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 179 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:24:09,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-14 03:24:09,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 918. [2024-11-14 03:24:09,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 861 states have (on average 1.3310104529616724) internal successors, (1146), 893 states have internal predecessors, (1146), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:24:09,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1190 transitions. [2024-11-14 03:24:09,109 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1190 transitions. Word has length 82 [2024-11-14 03:24:09,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:09,109 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1190 transitions. [2024-11-14 03:24:09,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:24:09,109 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1190 transitions. [2024-11-14 03:24:09,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:24:09,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:09,110 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:09,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-14 03:24:09,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:09,311 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:24:09,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:09,311 INFO L85 PathProgramCache]: Analyzing trace with hash -632542179, now seen corresponding path program 1 times [2024-11-14 03:24:09,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:09,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228791312] [2024-11-14 03:24:09,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:09,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:24:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:24:09,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:09,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228791312] [2024-11-14 03:24:09,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228791312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:24:09,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683491694] [2024-11-14 03:24:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:09,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:09,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:24:09,481 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:24:09,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 03:24:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:24:09,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:24:09,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:24:10,111 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:24:10,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683491694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:24:10,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:24:10,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2024-11-14 03:24:10,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990699482] [2024-11-14 03:24:10,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:24:10,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:24:10,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:10,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:24:10,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:24:10,113 INFO L87 Difference]: Start difference. First operand 918 states and 1190 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:24:11,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:11,153 INFO L93 Difference]: Finished difference Result 921 states and 1191 transitions. [2024-11-14 03:24:11,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:24:11,153 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 84 [2024-11-14 03:24:11,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:11,156 INFO L225 Difference]: With dead ends: 921 [2024-11-14 03:24:11,156 INFO L226 Difference]: Without dead ends: 897 [2024-11-14 03:24:11,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:24:11,157 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 118 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:11,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 220 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:24:11,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-14 03:24:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 897. [2024-11-14 03:24:11,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 840 states have (on average 1.3357142857142856) internal successors, (1122), 872 states have internal predecessors, (1122), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:24:11,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1166 transitions. [2024-11-14 03:24:11,239 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1166 transitions. Word has length 84 [2024-11-14 03:24:11,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:11,239 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1166 transitions. [2024-11-14 03:24:11,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:24:11,240 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1166 transitions. [2024-11-14 03:24:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:24:11,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:11,241 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:24:11,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-14 03:24:11,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:11,441 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:24:11,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash -892077153, now seen corresponding path program 1 times [2024-11-14 03:24:11,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:11,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330849677] [2024-11-14 03:24:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:11,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:24:11,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234554383] [2024-11-14 03:24:11,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:11,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:11,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:24:11,465 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:24:11,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 03:24:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:24:11,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:24:11,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:24:11,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:24:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:24:12,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:12,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330849677] [2024-11-14 03:24:12,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:24:12,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234554383] [2024-11-14 03:24:12,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234554383] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:24:12,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1564031350] [2024-11-14 03:24:12,603 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:24:12,603 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:24:12,604 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:24:12,604 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:24:12,604 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:24:16,769 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:24:16,820 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:24:16,830 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:24:28,881 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '46635#(and (= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~xy~0#1|) (<= 0 (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775808)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 4611686018427387905) 0) (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775808)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 03:24:28,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:24:28,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:24:28,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-14 03:24:28,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197500585] [2024-11-14 03:24:28,881 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:24:28,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 03:24:28,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:28,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 03:24:28,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=3571, Unknown=0, NotChecked=0, Total=3906 [2024-11-14 03:24:28,883 INFO L87 Difference]: Start difference. First operand 897 states and 1166 transitions. Second operand has 20 states, 19 states have (on average 7.421052631578948) internal successors, (141), 20 states have internal predecessors, (141), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:24:34,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:34,620 INFO L93 Difference]: Finished difference Result 1613 states and 2136 transitions. [2024-11-14 03:24:34,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-14 03:24:34,621 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.421052631578948) internal successors, (141), 20 states have internal predecessors, (141), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-11-14 03:24:34,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:34,629 INFO L225 Difference]: With dead ends: 1613 [2024-11-14 03:24:34,629 INFO L226 Difference]: Without dead ends: 1612 [2024-11-14 03:24:34,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 187 SyntacticMatches, 2 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2947 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=758, Invalid=7984, Unknown=0, NotChecked=0, Total=8742 [2024-11-14 03:24:34,631 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 511 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:34,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 604 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1608 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-14 03:24:34,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-11-14 03:24:34,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1428. [2024-11-14 03:24:34,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1354 states have (on average 1.3700147710487445) internal successors, (1855), 1386 states have internal predecessors, (1855), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:24:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1933 transitions. [2024-11-14 03:24:34,800 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1933 transitions. Word has length 84 [2024-11-14 03:24:34,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:34,800 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1933 transitions. [2024-11-14 03:24:34,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.421052631578948) internal successors, (141), 20 states have internal predecessors, (141), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:24:34,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1933 transitions. [2024-11-14 03:24:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:24:34,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:34,801 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:24:34,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-14 03:24:35,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:35,006 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:24:35,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:35,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1212471675, now seen corresponding path program 2 times [2024-11-14 03:24:35,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:35,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817990701] [2024-11-14 03:24:35,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:35,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:24:35,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [407320595] [2024-11-14 03:24:35,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:24:35,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:35,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:24:35,036 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:24:35,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 03:24:35,106 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:24:35,106 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:24:35,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:24:35,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:24:43,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:24:46,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:46,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817990701] [2024-11-14 03:24:46,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:24:46,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407320595] [2024-11-14 03:24:46,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407320595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:24:46,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1248275725] [2024-11-14 03:24:46,486 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:24:46,486 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:24:46,486 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:24:46,487 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:24:46,487 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:24:51,681 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:24:51,714 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:24:51,723 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:25:05,392 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '50361#(and (= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~xy~0#1|) (<= 0 (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775808)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 4611686018427387905) 0) (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775808)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 03:25:05,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:25:05,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:25:05,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 03:25:05,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242634709] [2024-11-14 03:25:05,393 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:25:05,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:25:05,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:25:05,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:25:05,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=3351, Unknown=4, NotChecked=0, Total=3660 [2024-11-14 03:25:05,394 INFO L87 Difference]: Start difference. First operand 1428 states and 1933 transitions. Second operand has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:25:09,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:11,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:13,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:14,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:19,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:21,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:27,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:34,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:36,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:39,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:42,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:44,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:46,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:48,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:25:50,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:26:00,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:26:00,901 INFO L93 Difference]: Finished difference Result 1428 states and 1933 transitions. [2024-11-14 03:26:00,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:26:00,901 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 84 [2024-11-14 03:26:00,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:26:00,906 INFO L225 Difference]: With dead ends: 1428 [2024-11-14 03:26:00,906 INFO L226 Difference]: Without dead ends: 1427 [2024-11-14 03:26:00,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 157 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1558 ImplicationChecksByTransitivity, 47.1s TimeCoverageRelationStatistics Valid=369, Invalid=4039, Unknown=14, NotChecked=0, Total=4422 [2024-11-14 03:26:00,907 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 208 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 9 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:26:00,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 208 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 506 Invalid, 14 Unknown, 0 Unchecked, 32.4s Time] [2024-11-14 03:26:00,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2024-11-14 03:26:00,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 896. [2024-11-14 03:26:00,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 840 states have (on average 1.3202380952380952) internal successors, (1109), 871 states have internal predecessors, (1109), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:26:00,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1153 transitions. [2024-11-14 03:26:00,980 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1153 transitions. Word has length 84 [2024-11-14 03:26:00,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:26:00,980 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1153 transitions. [2024-11-14 03:26:00,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:26:00,980 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1153 transitions. [2024-11-14 03:26:00,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:26:00,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:26:00,981 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 03:26:01,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-14 03:26:01,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-14 03:26:01,182 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:26:01,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:26:01,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1884587904, now seen corresponding path program 1 times [2024-11-14 03:26:01,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:26:01,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537183221] [2024-11-14 03:26:01,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:01,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:26:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:26:01,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13154604] [2024-11-14 03:26:01,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:01,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:26:01,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:26:01,211 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:26:01,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 03:26:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:26:01,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 03:26:01,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:26:01,796 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:26:01,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:26:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:26:03,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:26:03,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537183221] [2024-11-14 03:26:03,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:26:03,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13154604] [2024-11-14 03:26:03,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13154604] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:26:03,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [692778461] [2024-11-14 03:26:03,372 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:26:03,372 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:26:03,373 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:26:03,373 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:26:03,373 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:26:08,269 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:26:08,325 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:26:08,346 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:26:18,790 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53390#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 03:26:18,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:26:18,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:26:18,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-14 03:26:18,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065488898] [2024-11-14 03:26:18,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:26:18,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:26:18,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:26:18,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:26:18,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=3360, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 03:26:18,792 INFO L87 Difference]: Start difference. First operand 896 states and 1153 transitions. Second operand has 19 states, 17 states have (on average 8.705882352941176) internal successors, (148), 19 states have internal predecessors, (148), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 03:26:30,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:26:30,925 INFO L93 Difference]: Finished difference Result 1277 states and 1611 transitions. [2024-11-14 03:26:30,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-14 03:26:30,926 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.705882352941176) internal successors, (148), 19 states have internal predecessors, (148), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 85 [2024-11-14 03:26:30,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:26:30,930 INFO L225 Difference]: With dead ends: 1277 [2024-11-14 03:26:30,930 INFO L226 Difference]: Without dead ends: 1276 [2024-11-14 03:26:30,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 192 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2604 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=738, Invalid=7452, Unknown=0, NotChecked=0, Total=8190 [2024-11-14 03:26:30,933 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 564 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:26:30,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 472 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2024-11-14 03:26:30,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2024-11-14 03:26:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1080. [2024-11-14 03:26:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1020 states have (on average 1.2950980392156863) internal successors, (1321), 1051 states have internal predecessors, (1321), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:26:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1373 transitions. [2024-11-14 03:26:31,014 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1373 transitions. Word has length 85 [2024-11-14 03:26:31,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:26:31,014 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1373 transitions. [2024-11-14 03:26:31,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.705882352941176) internal successors, (148), 19 states have internal predecessors, (148), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 03:26:31,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1373 transitions. [2024-11-14 03:26:31,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:26:31,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:26:31,015 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 03:26:31,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-14 03:26:31,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-14 03:26:31,216 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:26:31,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:26:31,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1068083676, now seen corresponding path program 2 times [2024-11-14 03:26:31,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:26:31,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363071053] [2024-11-14 03:26:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:31,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:26:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:26:31,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50509707] [2024-11-14 03:26:31,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:26:31,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:26:31,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:26:31,237 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:26:31,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 03:26:31,311 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:26:31,311 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:26:31,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 03:26:31,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:26:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:26:32,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:26:33,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:26:33,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363071053] [2024-11-14 03:26:33,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:26:33,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50509707] [2024-11-14 03:26:33,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50509707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:26:33,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1528207651] [2024-11-14 03:26:33,385 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:26:33,385 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:26:33,385 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:26:33,385 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:26:33,385 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:26:37,242 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:26:37,276 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:26:37,285 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:26:50,879 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '56394#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 03:26:50,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:26:50,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:26:50,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 03:26:50,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893918408] [2024-11-14 03:26:50,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:26:50,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:26:50,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:26:50,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:26:50,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=3245, Unknown=0, NotChecked=0, Total=3540 [2024-11-14 03:26:50,881 INFO L87 Difference]: Start difference. First operand 1080 states and 1373 transitions. Second operand has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:26:56,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:26:56,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:26:56,679 INFO L93 Difference]: Finished difference Result 1080 states and 1373 transitions. [2024-11-14 03:26:56,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 03:26:56,679 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 85 [2024-11-14 03:26:56,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:26:56,682 INFO L225 Difference]: With dead ends: 1080 [2024-11-14 03:26:56,682 INFO L226 Difference]: Without dead ends: 1079 [2024-11-14 03:26:56,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1648 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=443, Invalid=4527, Unknown=0, NotChecked=0, Total=4970 [2024-11-14 03:26:56,683 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 227 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:26:56,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 126 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 605 Invalid, 3 Unknown, 0 Unchecked, 5.0s Time] [2024-11-14 03:26:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-14 03:26:56,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 895. [2024-11-14 03:26:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 840 states have (on average 1.3047619047619048) internal successors, (1096), 870 states have internal predecessors, (1096), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:26:56,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1140 transitions. [2024-11-14 03:26:56,795 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1140 transitions. Word has length 85 [2024-11-14 03:26:56,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:26:56,795 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1140 transitions. [2024-11-14 03:26:56,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:26:56,795 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1140 transitions. [2024-11-14 03:26:56,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:26:56,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:26:56,796 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:26:56,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-14 03:26:57,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-14 03:26:57,001 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:26:57,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:26:57,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1530647113, now seen corresponding path program 1 times [2024-11-14 03:26:57,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:26:57,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889796120] [2024-11-14 03:26:57,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:57,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:26:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:26:57,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [10293373] [2024-11-14 03:26:57,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:57,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:26:57,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:26:57,017 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:26:57,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-14 03:26:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:26:57,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 03:26:57,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:26:58,796 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:26:58,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:27:06,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:27:06,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889796120] [2024-11-14 03:27:06,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:27:06,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10293373] [2024-11-14 03:27:06,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10293373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:27:06,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1973403753] [2024-11-14 03:27:06,002 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2024-11-14 03:27:06,002 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:27:06,002 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:27:06,002 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:27:06,002 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:27:09,170 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 03:27:09,176 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:27:09,184 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:27:51,098 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '58977#(exists ((|v_ULTIMATE.start_main_~Y~0#1_97| Int) (|v_ULTIMATE.start_main_~yx~0#1_163| Int) (|v_ULTIMATE.start_main_~X~0#1_84| Int) (|v_ULTIMATE.start_main_~x~0#1_170| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~Y~0#1_97| 50) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_163|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= (* |v_ULTIMATE.start_main_~x~0#1_170| |v_ULTIMATE.start_main_~Y~0#1_97|) 4611686018427387903) (<= (+ |v_ULTIMATE.start_main_~X~0#1_84| 1) |v_ULTIMATE.start_main_~x~0#1_170|) (<= 0 |v_ULTIMATE.start_main_~X~0#1_84|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_84| 9223372036854775808 (* 2 (* |v_ULTIMATE.start_main_~x~0#1_170| |ULTIMATE.start_main_~y~0#1|))) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_97|) (* (* |v_ULTIMATE.start_main_~x~0#1_170| |v_ULTIMATE.start_main_~Y~0#1_97|) 2))) (<= |v_ULTIMATE.start_main_~X~0#1_84| 50)))' at error location [2024-11-14 03:27:51,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:27:51,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:27:51,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-14 03:27:51,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443405978] [2024-11-14 03:27:51,099 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:27:51,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-14 03:27:51,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:27:51,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-14 03:27:51,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=2666, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 03:27:51,100 INFO L87 Difference]: Start difference. First operand 895 states and 1140 transitions. Second operand has 16 states, 13 states have (on average 6.0) internal successors, (78), 16 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:27:52,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:27:52,900 INFO L93 Difference]: Finished difference Result 906 states and 1153 transitions. [2024-11-14 03:27:52,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 03:27:52,900 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 6.0) internal successors, (78), 16 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 86 [2024-11-14 03:27:52,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:27:52,902 INFO L225 Difference]: With dead ends: 906 [2024-11-14 03:27:52,903 INFO L226 Difference]: Without dead ends: 905 [2024-11-14 03:27:52,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 131 SyntacticMatches, 40 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2219 ImplicationChecksByTransitivity, 48.1s TimeCoverageRelationStatistics Valid=365, Invalid=3057, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 03:27:52,904 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 149 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:27:52,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 315 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 03:27:52,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-14 03:27:52,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 899. [2024-11-14 03:27:52,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 844 states have (on average 1.3033175355450237) internal successors, (1100), 874 states have internal predecessors, (1100), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:27:52,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1144 transitions. [2024-11-14 03:27:52,968 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1144 transitions. Word has length 86 [2024-11-14 03:27:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:27:52,968 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1144 transitions. [2024-11-14 03:27:52,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 6.0) internal successors, (78), 16 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:27:52,968 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1144 transitions. [2024-11-14 03:27:52,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:27:52,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:27:52,969 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 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 03:27:52,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-14 03:27:53,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-14 03:27:53,171 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:27:53,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:27:53,171 INFO L85 PathProgramCache]: Analyzing trace with hash 54309859, now seen corresponding path program 1 times [2024-11-14 03:27:53,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:27:53,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711561028] [2024-11-14 03:27:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:27:53,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:27:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:27:53,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935776098] [2024-11-14 03:27:53,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:27:53,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:27:53,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:27:53,189 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:27:53,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-14 03:27:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:27:53,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:27:53,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:27:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 25 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:27:53,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:27:54,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:27:54,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711561028] [2024-11-14 03:27:54,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:27:54,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935776098] [2024-11-14 03:27:54,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935776098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:27:54,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [595475411] [2024-11-14 03:27:54,412 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:27:54,412 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:27:54,412 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:27:54,413 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:27:54,413 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:27:58,356 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:27:58,387 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:27:58,395 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:28:06,956 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '61261#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 03:28:06,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:28:06,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:28:06,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-14 03:28:06,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789842660] [2024-11-14 03:28:06,956 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:28:06,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:28:06,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:28:06,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:28:06,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=3266, Unknown=0, NotChecked=0, Total=3540 [2024-11-14 03:28:06,958 INFO L87 Difference]: Start difference. First operand 899 states and 1144 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:28:08,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:28:08,409 INFO L93 Difference]: Finished difference Result 1069 states and 1349 transitions. [2024-11-14 03:28:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 03:28:08,409 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-14 03:28:08,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:28:08,413 INFO L225 Difference]: With dead ends: 1069 [2024-11-14 03:28:08,413 INFO L226 Difference]: Without dead ends: 1067 [2024-11-14 03:28:08,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1706 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=408, Invalid=4562, Unknown=0, NotChecked=0, Total=4970 [2024-11-14 03:28:08,414 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 214 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:28:08,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 739 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:28:08,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2024-11-14 03:28:08,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 899. [2024-11-14 03:28:08,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 844 states have (on average 1.2950236966824644) internal successors, (1093), 874 states have internal predecessors, (1093), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:28:08,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1137 transitions. [2024-11-14 03:28:08,488 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1137 transitions. Word has length 88 [2024-11-14 03:28:08,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:28:08,489 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1137 transitions. [2024-11-14 03:28:08,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:28:08,489 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1137 transitions. [2024-11-14 03:28:08,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:28:08,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:28:08,490 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:28:08,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-14 03:28:08,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:28:08,691 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:28:08,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:28:08,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2073065643, now seen corresponding path program 1 times [2024-11-14 03:28:08,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:28:08,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139338049] [2024-11-14 03:28:08,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:28:08,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:28:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:28:08,886 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:28:08,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:28:08,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139338049] [2024-11-14 03:28:08,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139338049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:28:08,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503494735] [2024-11-14 03:28:08,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:28:08,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:28:08,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:28:08,889 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:28:08,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-14 03:28:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:28:08,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:28:08,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:28:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:28:09,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:28:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:28:09,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503494735] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:28:09,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1836603656] [2024-11-14 03:28:09,727 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-14 03:28:09,727 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:28:09,727 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:28:09,727 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:28:09,728 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:28:12,372 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 03:28:12,378 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:28:12,387 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:28:58,805 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '63938#(exists ((|v_ULTIMATE.start_main_~Y~0#1_98| Int) (|v_ULTIMATE.start_main_~X~0#1_85| Int) (|v_ULTIMATE.start_main_~yx~0#1_175| Int) (|v_ULTIMATE.start_main_~v~0#1_211| Int) (|v_ULTIMATE.start_main_~x~0#1_185| Int)) (and (<= (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_98|) (* 2 (* |v_ULTIMATE.start_main_~x~0#1_185| |v_ULTIMATE.start_main_~Y~0#1_98|))) (+ |v_ULTIMATE.start_main_~X~0#1_85| 9223372036854775807 (* (* |v_ULTIMATE.start_main_~x~0#1_185| |ULTIMATE.start_main_~y~0#1|) 2))) (<= 1 |#StackHeapBarrier|) (<= (* |v_ULTIMATE.start_main_~x~0#1_185| |ULTIMATE.start_main_~y~0#1|) 4611686018427387903) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_175|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_85| 1) |v_ULTIMATE.start_main_~x~0#1_185|) (<= |v_ULTIMATE.start_main_~Y~0#1_98| 50) (<= (+ |v_ULTIMATE.start_main_~X~0#1_85| (* (* |v_ULTIMATE.start_main_~x~0#1_185| |ULTIMATE.start_main_~y~0#1|) 2)) (+ (* 2 (* |v_ULTIMATE.start_main_~x~0#1_185| |v_ULTIMATE.start_main_~Y~0#1_98|)) 9223372036854775808)) (<= 0 |v_ULTIMATE.start_main_~X~0#1_85|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_98|) (<= |v_ULTIMATE.start_main_~X~0#1_85| 50) (<= (+ |v_ULTIMATE.start_main_~X~0#1_85| |v_ULTIMATE.start_main_~v~0#1_211| 9223372036854775808 (* (* |v_ULTIMATE.start_main_~x~0#1_185| |ULTIMATE.start_main_~y~0#1|) 2)) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_98|) (* 2 (* |v_ULTIMATE.start_main_~x~0#1_185| |v_ULTIMATE.start_main_~Y~0#1_98|)))) (<= (* |v_ULTIMATE.start_main_~x~0#1_185| |v_ULTIMATE.start_main_~Y~0#1_98|) 4611686018427387903)))' at error location [2024-11-14 03:28:58,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:28:58,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:28:58,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-11-14 03:28:58,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765162038] [2024-11-14 03:28:58,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:28:58,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:28:58,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:28:58,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:28:58,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=2528, Unknown=6, NotChecked=0, Total=2756 [2024-11-14 03:28:58,807 INFO L87 Difference]: Start difference. First operand 899 states and 1137 transitions. Second operand has 23 states, 22 states have (on average 10.0) internal successors, (220), 23 states have internal predecessors, (220), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 03:29:00,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:00,521 INFO L93 Difference]: Finished difference Result 913 states and 1153 transitions. [2024-11-14 03:29:00,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 03:29:00,522 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 10.0) internal successors, (220), 23 states have internal predecessors, (220), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 88 [2024-11-14 03:29:00,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:00,526 INFO L225 Difference]: With dead ends: 913 [2024-11-14 03:29:00,526 INFO L226 Difference]: Without dead ends: 912 [2024-11-14 03:29:00,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 179 SyntacticMatches, 40 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2755 ImplicationChecksByTransitivity, 47.2s TimeCoverageRelationStatistics Valid=370, Invalid=3656, Unknown=6, NotChecked=0, Total=4032 [2024-11-14 03:29:00,528 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 288 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:00,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 587 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:29:00,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-14 03:29:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 902. [2024-11-14 03:29:00,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 847 states have (on average 1.2939787485242031) internal successors, (1096), 877 states have internal predecessors, (1096), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:29:00,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1140 transitions. [2024-11-14 03:29:00,634 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1140 transitions. Word has length 88 [2024-11-14 03:29:00,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:00,636 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1140 transitions. [2024-11-14 03:29:00,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 10.0) internal successors, (220), 23 states have internal predecessors, (220), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-14 03:29:00,636 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1140 transitions. [2024-11-14 03:29:00,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:29:00,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:00,637 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:00,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-14 03:29:00,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:00,842 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:29:00,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:00,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2131968959, now seen corresponding path program 2 times [2024-11-14 03:29:00,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:00,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954125074] [2024-11-14 03:29:00,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:00,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:29:00,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437904325] [2024-11-14 03:29:00,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:29:00,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:29:00,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:00,874 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:29:00,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-14 03:29:01,007 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:29:01,007 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:29:01,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 03:29:01,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:29:07,201 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 30 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:29:07,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:29:25,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:25,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954125074] [2024-11-14 03:29:25,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:29:25,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437904325] [2024-11-14 03:29:25,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437904325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:29:25,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [395540837] [2024-11-14 03:29:25,483 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:29:25,483 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:29:25,483 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:29:25,483 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:29:25,483 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:29:29,405 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:29:29,440 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:29:29,448 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:30:08,398 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '66344#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 03:30:08,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:30:08,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:30:08,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-14 03:30:08,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463367727] [2024-11-14 03:30:08,398 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:30:08,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:30:08,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:08,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:30:08,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=3602, Unknown=7, NotChecked=0, Total=3906 [2024-11-14 03:30:08,399 INFO L87 Difference]: Start difference. First operand 902 states and 1140 transitions. Second operand has 13 states, 10 states have (on average 7.8) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:30:10,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:13,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:24,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:28,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:30,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:32,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:35,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:37,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:39,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:41,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:45,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:49,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:56,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:30:58,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:01,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:03,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:05,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:09,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:11,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:14,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:16,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:17,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:19,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:21,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:24,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:27,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:29,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:33,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:35,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:37,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:38,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:31:39,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:39,038 INFO L93 Difference]: Finished difference Result 1310 states and 1678 transitions. [2024-11-14 03:31:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 03:31:39,041 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 7.8) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 88 [2024-11-14 03:31:39,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:39,046 INFO L225 Difference]: With dead ends: 1310 [2024-11-14 03:31:39,046 INFO L226 Difference]: Without dead ends: 1309 [2024-11-14 03:31:39,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 167 SyntacticMatches, 2 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1792 ImplicationChecksByTransitivity, 71.2s TimeCoverageRelationStatistics Valid=403, Invalid=4701, Unknown=8, NotChecked=0, Total=5112 [2024-11-14 03:31:39,048 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 285 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 11 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:39,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 180 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 834 Invalid, 23 Unknown, 0 Unchecked, 81.6s Time] [2024-11-14 03:31:39,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2024-11-14 03:31:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 941. [2024-11-14 03:31:39,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 886 states have (on average 1.2878103837471784) internal successors, (1141), 916 states have internal predecessors, (1141), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 03:31:39,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1185 transitions. [2024-11-14 03:31:39,192 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1185 transitions. Word has length 88 [2024-11-14 03:31:39,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:39,193 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1185 transitions. [2024-11-14 03:31:39,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 7.8) internal successors, (78), 13 states have internal predecessors, (78), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:31:39,193 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1185 transitions. [2024-11-14 03:31:39,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 03:31:39,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:39,194 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:31:39,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-14 03:31:39,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:39,395 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:31:39,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:39,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1683605700, now seen corresponding path program 1 times [2024-11-14 03:31:39,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:39,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924763681] [2024-11-14 03:31:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:39,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:31:39,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555525383] [2024-11-14 03:31:39,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:39,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:39,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:39,417 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:39,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-14 03:31:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:39,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:31:39,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:40,130 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:31:40,131 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:31:40,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:40,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924763681] [2024-11-14 03:31:40,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:31:40,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555525383] [2024-11-14 03:31:40,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555525383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:31:40,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [925362699] [2024-11-14 03:31:40,411 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:31:40,411 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:31:40,411 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:31:40,412 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:31:40,412 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:31:44,750 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:31:44,819 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:31:44,834 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:31:54,973 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '69132#(and (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387904)) (exists ((|v_ULTIMATE.start_main_~yx~0#1_187| Int)) (and (<= |v_ULTIMATE.start_main_~yx~0#1_187| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387904) |v_ULTIMATE.start_main_~yx~0#1_187|) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |v_ULTIMATE.start_main_~yx~0#1_187|) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))))' at error location [2024-11-14 03:31:54,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:31:54,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:31:54,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 03:31:54,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900440323] [2024-11-14 03:31:54,974 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:31:54,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:31:54,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:31:54,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:31:54,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=3155, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 03:31:54,975 INFO L87 Difference]: Start difference. First operand 941 states and 1185 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:31:56,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:56,221 INFO L93 Difference]: Finished difference Result 1152 states and 1459 transitions. [2024-11-14 03:31:56,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:31:56,221 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 89 [2024-11-14 03:31:56,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:56,226 INFO L225 Difference]: With dead ends: 1152 [2024-11-14 03:31:56,226 INFO L226 Difference]: Without dead ends: 1146 [2024-11-14 03:31:56,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 143 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1362 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=318, Invalid=3714, Unknown=0, NotChecked=0, Total=4032 [2024-11-14 03:31:56,227 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 110 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:56,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 566 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:31:56,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2024-11-14 03:31:56,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1105. [2024-11-14 03:31:56,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1046 states have (on average 1.2839388145315487) internal successors, (1343), 1076 states have internal predecessors, (1343), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:31:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1395 transitions. [2024-11-14 03:31:56,398 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1395 transitions. Word has length 89 [2024-11-14 03:31:56,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:56,398 INFO L471 AbstractCegarLoop]: Abstraction has 1105 states and 1395 transitions. [2024-11-14 03:31:56,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:31:56,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1395 transitions. [2024-11-14 03:31:56,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 03:31:56,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:56,400 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:31:56,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-14 03:31:56,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-14 03:31:56,604 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:31:56,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:56,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1666528360, now seen corresponding path program 2 times [2024-11-14 03:31:56,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:56,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730244249] [2024-11-14 03:31:56,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:56,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:31:56,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1641226914] [2024-11-14 03:31:56,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:31:56,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:56,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:56,621 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:56,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-14 03:31:56,686 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:31:56,686 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:31:56,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:31:56,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:04,567 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:32:04,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:32:06,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:32:06,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730244249] [2024-11-14 03:32:06,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:32:06,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641226914] [2024-11-14 03:32:06,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641226914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:32:06,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1954969340] [2024-11-14 03:32:06,497 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:32:06,497 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:32:06,497 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:32:06,498 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:32:06,498 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:10,704 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:32:10,743 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:32:10,752 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:30,833 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '72010#(and (exists ((|v_ULTIMATE.start_main_~yx~0#1_194| Int)) (and (<= |v_ULTIMATE.start_main_~yx~0#1_194| 4611686018427387903) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387904) |v_ULTIMATE.start_main_~yx~0#1_194|) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |v_ULTIMATE.start_main_~yx~0#1_194|))) (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387904)))' at error location [2024-11-14 03:32:30,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:32:30,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:32:30,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-14 03:32:30,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627502113] [2024-11-14 03:32:30,834 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:32:30,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:32:30,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:30,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:32:30,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=3854, Unknown=3, NotChecked=0, Total=4160 [2024-11-14 03:32:30,836 INFO L87 Difference]: Start difference. First operand 1105 states and 1395 transitions. Second operand has 13 states, 10 states have (on average 7.9) internal successors, (79), 13 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:32:32,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:35,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:38,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:40,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:42,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:51,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:53,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:55,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:57,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:32:59,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:33:01,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:33:04,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:33:09,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:33:11,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:33:13,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:33:16,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 03:33:16,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:16,833 INFO L93 Difference]: Finished difference Result 1653 states and 2101 transitions. [2024-11-14 03:33:16,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:33:16,833 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 7.9) internal successors, (79), 13 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 89 [2024-11-14 03:33:16,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:16,837 INFO L225 Difference]: With dead ends: 1653 [2024-11-14 03:33:16,837 INFO L226 Difference]: Without dead ends: 1651 [2024-11-14 03:33:16,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 168 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2257 ImplicationChecksByTransitivity, 35.6s TimeCoverageRelationStatistics Valid=519, Invalid=5798, Unknown=3, NotChecked=0, Total=6320 [2024-11-14 03:33:16,838 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 233 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 8 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:16,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 266 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1268 Invalid, 16 Unknown, 0 Unchecked, 38.1s Time] [2024-11-14 03:33:16,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2024-11-14 03:33:16,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1178. [2024-11-14 03:33:16,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1119 states have (on average 1.2734584450402144) internal successors, (1425), 1149 states have internal predecessors, (1425), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:33:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1477 transitions. [2024-11-14 03:33:16,984 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1477 transitions. Word has length 89 [2024-11-14 03:33:16,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:16,985 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1477 transitions. [2024-11-14 03:33:16,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 7.9) internal successors, (79), 13 states have internal predecessors, (79), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:33:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1477 transitions. [2024-11-14 03:33:16,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 03:33:16,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:16,986 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:17,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-14 03:33:17,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-14 03:33:17,193 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:33:17,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:17,194 INFO L85 PathProgramCache]: Analyzing trace with hash 652169221, now seen corresponding path program 1 times [2024-11-14 03:33:17,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:17,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377572248] [2024-11-14 03:33:17,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:17,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:33:17,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957355701] [2024-11-14 03:33:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:17,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:17,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:17,223 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:17,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-14 03:33:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:17,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 03:33:17,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:17,911 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:33:17,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:33:18,889 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:33:18,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:18,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377572248] [2024-11-14 03:33:18,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:33:18,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957355701] [2024-11-14 03:33:18,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957355701] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:33:18,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [213246099] [2024-11-14 03:33:18,891 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:33:18,891 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:33:18,891 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:33:18,891 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:33:18,891 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:33:23,199 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:33:23,250 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:33:23,260 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:33:33,061 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '75623#(and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-14 03:33:33,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:33:33,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:33:33,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-14 03:33:33,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620887279] [2024-11-14 03:33:33,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:33:33,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 03:33:33,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:33,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 03:33:33,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=3599, Unknown=0, NotChecked=0, Total=3906 [2024-11-14 03:33:33,063 INFO L87 Difference]: Start difference. First operand 1178 states and 1477 transitions. Second operand has 20 states, 19 states have (on average 8.052631578947368) internal successors, (153), 20 states have internal predecessors, (153), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:33:41,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:41,171 INFO L93 Difference]: Finished difference Result 2159 states and 2760 transitions. [2024-11-14 03:33:41,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-14 03:33:41,171 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.052631578947368) internal successors, (153), 20 states have internal predecessors, (153), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 90 [2024-11-14 03:33:41,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:41,175 INFO L225 Difference]: With dead ends: 2159 [2024-11-14 03:33:41,175 INFO L226 Difference]: Without dead ends: 2157 [2024-11-14 03:33:41,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3384 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=741, Invalid=9765, Unknown=0, NotChecked=0, Total=10506 [2024-11-14 03:33:41,177 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 473 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 2872 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:41,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 810 Invalid, 2911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2872 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-14 03:33:41,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2024-11-14 03:33:41,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 1920. [2024-11-14 03:33:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1920 states, 1839 states have (on average 1.288200108754758) internal successors, (2369), 1869 states have internal predecessors, (2369), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 03:33:41,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2465 transitions. [2024-11-14 03:33:41,430 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2465 transitions. Word has length 90 [2024-11-14 03:33:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:41,430 INFO L471 AbstractCegarLoop]: Abstraction has 1920 states and 2465 transitions. [2024-11-14 03:33:41,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.052631578947368) internal successors, (153), 20 states have internal predecessors, (153), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:33:41,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2465 transitions. [2024-11-14 03:33:41,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 03:33:41,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:41,431 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:41,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-14 03:33:41,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-14 03:33:41,632 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:33:41,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:41,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1363989312, now seen corresponding path program 1 times [2024-11-14 03:33:41,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:41,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604590092] [2024-11-14 03:33:41,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:41,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:33:41,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:41,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604590092] [2024-11-14 03:33:41,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604590092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:41,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361532331] [2024-11-14 03:33:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:41,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:41,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:41,737 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:41,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-14 03:33:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:41,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:33:41,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:33:42,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:33:42,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361532331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:33:42,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:33:42,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-14 03:33:42,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198841517] [2024-11-14 03:33:42,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:33:42,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:33:42,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:42,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:33:42,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:33:42,017 INFO L87 Difference]: Start difference. First operand 1920 states and 2465 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:33:42,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:42,663 INFO L93 Difference]: Finished difference Result 1920 states and 2465 transitions. [2024-11-14 03:33:42,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:33:42,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 91 [2024-11-14 03:33:42,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:42,669 INFO L225 Difference]: With dead ends: 1920 [2024-11-14 03:33:42,669 INFO L226 Difference]: Without dead ends: 1917 [2024-11-14 03:33:42,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:33:42,671 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 79 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:42,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 236 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:33:42,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2024-11-14 03:33:42,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1883. [2024-11-14 03:33:42,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1883 states, 1805 states have (on average 1.2753462603878116) internal successors, (2302), 1832 states have internal predecessors, (2302), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 03:33:42,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1883 states to 1883 states and 2398 transitions. [2024-11-14 03:33:42,975 INFO L78 Accepts]: Start accepts. Automaton has 1883 states and 2398 transitions. Word has length 91 [2024-11-14 03:33:42,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:42,975 INFO L471 AbstractCegarLoop]: Abstraction has 1883 states and 2398 transitions. [2024-11-14 03:33:42,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:33:42,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1883 states and 2398 transitions. [2024-11-14 03:33:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 03:33:42,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:42,977 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:42,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-14 03:33:43,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-14 03:33:43,177 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:33:43,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash -666004113, now seen corresponding path program 1 times [2024-11-14 03:33:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:43,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761700607] [2024-11-14 03:33:43,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:43,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:33:43,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415698702] [2024-11-14 03:33:43,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:43,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:43,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:43,196 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:43,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-14 03:33:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:43,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 03:33:43,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:33:44,065 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:33:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:33:44,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:44,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761700607] [2024-11-14 03:33:44,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:33:44,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415698702] [2024-11-14 03:33:44,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415698702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:33:44,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1039156472] [2024-11-14 03:33:44,793 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 03:33:44,793 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:33:44,793 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:33:44,794 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:33:44,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:33:47,693 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 51 for LOIs [2024-11-14 03:33:47,704 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:33:47,719 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:34:11,525 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '84905#(exists ((|v_ULTIMATE.start_main_~x~0#1_222| Int) (|v_ULTIMATE.start_main_~X~0#1_93| Int) (|v_ULTIMATE.start_main_~yx~0#1_209| Int) (|v_ULTIMATE.start_main_~v~0#1_266| Int) (|v_ULTIMATE.start_main_~Y~0#1_105| Int) (|v_ULTIMATE.start_main_~y~0#1_177| Int)) (and (<= (* |v_ULTIMATE.start_main_~y~0#1_177| |v_ULTIMATE.start_main_~x~0#1_222|) 4611686018427387903) (<= 1 |#StackHeapBarrier|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_93| 1) |v_ULTIMATE.start_main_~x~0#1_222|) (<= |v_ULTIMATE.start_main_~X~0#1_93| 50) (<= 0 |v_ULTIMATE.start_main_~X~0#1_93|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_93| |v_ULTIMATE.start_main_~v~0#1_266| (* (* |v_ULTIMATE.start_main_~y~0#1_177| |v_ULTIMATE.start_main_~x~0#1_222|) 2) 9223372036854775808) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_105|) (* 2 (* |v_ULTIMATE.start_main_~x~0#1_222| |v_ULTIMATE.start_main_~Y~0#1_105|)) (* |v_ULTIMATE.start_main_~y~0#1_177| 2))) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_209|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_93| (* (* |v_ULTIMATE.start_main_~y~0#1_177| |v_ULTIMATE.start_main_~x~0#1_222|) 2)) (+ 9223372036854775808 (* 2 (* |v_ULTIMATE.start_main_~x~0#1_222| |v_ULTIMATE.start_main_~Y~0#1_105|)))) (<= |v_ULTIMATE.start_main_~Y~0#1_105| 50) (<= (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_105|) (* 2 (* |v_ULTIMATE.start_main_~x~0#1_222| |v_ULTIMATE.start_main_~Y~0#1_105|))) (+ |v_ULTIMATE.start_main_~X~0#1_93| |v_ULTIMATE.start_main_~v~0#1_266| 9223372036854775807 (* (* |v_ULTIMATE.start_main_~y~0#1_177| |v_ULTIMATE.start_main_~x~0#1_222|) 2))) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_105|) (<= (* |v_ULTIMATE.start_main_~x~0#1_222| |v_ULTIMATE.start_main_~Y~0#1_105|) 4611686018427387903)))' at error location [2024-11-14 03:34:11,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:34:11,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:34:11,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-11-14 03:34:11,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997456407] [2024-11-14 03:34:11,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:34:11,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:34:11,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:11,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:34:11,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=2601, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 03:34:11,526 INFO L87 Difference]: Start difference. First operand 1883 states and 2398 transitions. Second operand has 23 states, 21 states have (on average 7.523809523809524) internal successors, (158), 23 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:34:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:34:14,599 INFO L93 Difference]: Finished difference Result 1910 states and 2427 transitions. [2024-11-14 03:34:14,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:34:14,600 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 7.523809523809524) internal successors, (158), 23 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 92 [2024-11-14 03:34:14,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:34:14,604 INFO L225 Difference]: With dead ends: 1910 [2024-11-14 03:34:14,604 INFO L226 Difference]: Without dead ends: 1883 [2024-11-14 03:34:14,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 179 SyntacticMatches, 43 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2515 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=423, Invalid=3999, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 03:34:14,606 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 341 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:34:14,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 310 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-14 03:34:14,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2024-11-14 03:34:14,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1877. [2024-11-14 03:34:14,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1799 states have (on average 1.2784880489160644) internal successors, (2300), 1826 states have internal predecessors, (2300), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 03:34:14,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2396 transitions. [2024-11-14 03:34:14,840 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2396 transitions. Word has length 92 [2024-11-14 03:34:14,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:34:14,840 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2396 transitions. [2024-11-14 03:34:14,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 7.523809523809524) internal successors, (158), 23 states have internal predecessors, (158), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 03:34:14,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2396 transitions. [2024-11-14 03:34:14,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-14 03:34:14,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:34:14,841 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:34:14,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-14 03:34:15,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-14 03:34:15,042 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:34:15,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:34:15,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1845681714, now seen corresponding path program 1 times [2024-11-14 03:34:15,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:34:15,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767866362] [2024-11-14 03:34:15,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:15,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:34:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:34:15,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460101937] [2024-11-14 03:34:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:15,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:34:15,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:34:15,059 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:34:15,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-14 03:34:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:15,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:34:15,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:34:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 1 proven. 59 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:34:16,486 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:34:20,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:34:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767866362] [2024-11-14 03:34:20,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:34:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460101937] [2024-11-14 03:34:20,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460101937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:34:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1176365478] [2024-11-14 03:34:20,297 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:34:20,297 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:34:20,298 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:34:20,298 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:34:20,298 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:34:24,229 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 113 for LOIs [2024-11-14 03:34:24,260 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 69 for LOIs [2024-11-14 03:34:24,270 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:34:35,916 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '89452#(exists ((|v_ULTIMATE.start_main_~yx~0#1_217| Int) (|v_ULTIMATE.start_main_~Y~0#1_108| Int) (|v_ULTIMATE.start_main_~xy~0#1_215| Int) (|v_ULTIMATE.start_main_~X~0#1_96| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~xy~0#1_215| 4611686018427387904)) (<= (+ (* 2 |v_ULTIMATE.start_main_~xy~0#1_215|) |v_ULTIMATE.start_main_~X~0#1_96| 9223372036854775808) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_108|) (* 2 |v_ULTIMATE.start_main_~yx~0#1_217|))) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= (* 2 |v_ULTIMATE.start_main_~yx~0#1_217|) (+ (* 2 |v_ULTIMATE.start_main_~xy~0#1_215|) |v_ULTIMATE.start_main_~X~0#1_96| 9223372036854775807)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |v_ULTIMATE.start_main_~yx~0#1_217| 4611686018427387904)) (<= |v_ULTIMATE.start_main_~xy~0#1_215| 4611686018427387903) (<= 0 (+ |v_ULTIMATE.start_main_~X~0#1_96| 9223372036854775809)) (<= |v_ULTIMATE.start_main_~Y~0#1_108| 4611686018427387903) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)) (<= |v_ULTIMATE.start_main_~yx~0#1_217| 4611686018427387903)))' at error location [2024-11-14 03:34:35,916 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:34:35,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:34:35,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-14 03:34:35,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728124720] [2024-11-14 03:34:35,916 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 03:34:35,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:34:35,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:35,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:34:35,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=4201, Unknown=0, NotChecked=0, Total=4556 [2024-11-14 03:34:35,918 INFO L87 Difference]: Start difference. First operand 1877 states and 2396 transitions. Second operand has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:34:38,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:34:38,922 INFO L93 Difference]: Finished difference Result 1889 states and 2402 transitions. [2024-11-14 03:34:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 03:34:38,922 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 95 [2024-11-14 03:34:38,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:34:38,925 INFO L225 Difference]: With dead ends: 1889 [2024-11-14 03:34:38,925 INFO L226 Difference]: Without dead ends: 1888 [2024-11-14 03:34:38,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 183 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1681 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=438, Invalid=5112, Unknown=0, NotChecked=0, Total=5550 [2024-11-14 03:34:38,927 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 202 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:34:38,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 487 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:34:38,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2024-11-14 03:34:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1877. [2024-11-14 03:34:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1799 states have (on average 1.2768204558087826) internal successors, (2297), 1826 states have internal predecessors, (2297), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 03:34:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2393 transitions. [2024-11-14 03:34:39,112 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2393 transitions. Word has length 95 [2024-11-14 03:34:39,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:34:39,113 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2393 transitions. [2024-11-14 03:34:39,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.166666666666667) internal successors, (86), 14 states have internal predecessors, (86), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-14 03:34:39,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2393 transitions. [2024-11-14 03:34:39,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 03:34:39,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:34:39,113 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:34:39,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-14 03:34:39,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-14 03:34:39,314 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-14 03:34:39,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:34:39,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1023400853, now seen corresponding path program 1 times [2024-11-14 03:34:39,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:34:39,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429483590] [2024-11-14 03:34:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:39,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:34:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:39,537 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:34:39,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:34:39,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429483590] [2024-11-14 03:34:39,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429483590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:34:39,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792001803] [2024-11-14 03:34:39,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:34:39,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:34:39,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:34:39,540 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:34:39,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_274859d6-089a-4675-92d6-1a9a65cc92a4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-14 03:34:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:34:39,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:34:39,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:34:40,126 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:34:40,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:34:40,430 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:34:40,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792001803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:34:40,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [791786937] [2024-11-14 03:34:40,431 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 03:34:40,431 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:34:40,431 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:34:40,431 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:34:40,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs