./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje --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 72cd0a4215707a62376e213156123902caf611a87605e41064b672632b6ef1f9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:34:17,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:34:17,692 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:34:17,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:34:17,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:34:17,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:34:17,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:34:17,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:34:17,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:34:17,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:34:17,751 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:34:17,751 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:34:17,752 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:34:17,752 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:34:17,752 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:34:17,753 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:34:17,755 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:34:17,756 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:34:17,756 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:34:17,757 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:34:17,757 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:34:17,757 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:34:17,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:34:17,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:34:17,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:34:17,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:34:17,763 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:34:17,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:34:17,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:34:17,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:34:17,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:34:17,764 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:34:17,765 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:34:17,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:34:17,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:34:17,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:34:17,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:34:17,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:34:17,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:34:17,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:34:17,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:34:17,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:34:17,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:34:17,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:34:17,770 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:34:17,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:34:17,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:34:17,771 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:34:17,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:34:17,771 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72cd0a4215707a62376e213156123902caf611a87605e41064b672632b6ef1f9 [2024-11-09 06:34:18,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:34:18,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:34:18,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:34:18,107 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:34:18,108 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:34:18,109 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c Unable to find full path for "g++" [2024-11-09 06:34:20,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:34:20,252 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:34:20,253 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c [2024-11-09 06:34:20,260 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/data/2799b621f/d1a50e62d4ca40e4ba20a1cd46742ee3/FLAG19c3e9355 [2024-11-09 06:34:20,275 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/data/2799b621f/d1a50e62d4ca40e4ba20a1cd46742ee3 [2024-11-09 06:34:20,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:34:20,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:34:20,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:34:20,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:34:20,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:34:20,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba0a8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20, skipping insertion in model container [2024-11-09 06:34:20,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,327 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:34:20,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:34:20,618 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:34:20,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:34:20,661 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:34:20,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20 WrapperNode [2024-11-09 06:34:20,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:34:20,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:34:20,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:34:20,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:34:20,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,704 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 115 [2024-11-09 06:34:20,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:34:20,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:34:20,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:34:20,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:34:20,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,720 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:34:20,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:34:20,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:34:20,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:34:20,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (1/1) ... [2024-11-09 06:34:20,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:34:20,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:20,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:34:20,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:34:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:34:20,806 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:34:20,807 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:34:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:34:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:34:20,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:34:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:34:20,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:34:20,885 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:34:20,888 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:34:21,406 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2024-11-09 06:34:21,406 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:34:21,475 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:34:21,475 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:34:21,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:34:21 BoogieIcfgContainer [2024-11-09 06:34:21,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:34:21,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:34:21,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:34:21,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:34:21,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:34:20" (1/3) ... [2024-11-09 06:34:21,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444e320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:34:21, skipping insertion in model container [2024-11-09 06:34:21,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:34:20" (2/3) ... [2024-11-09 06:34:21,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7444e320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:34:21, skipping insertion in model container [2024-11-09 06:34:21,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:34:21" (3/3) ... [2024-11-09 06:34:21,491 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound2.c [2024-11-09 06:34:21,515 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:34:21,515 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2024-11-09 06:34:21,584 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:34:21,592 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;@47dd80f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:34:21,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-09 06:34:21,598 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) [2024-11-09 06:34:21,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:34:21,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:21,607 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:21,607 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)] === [2024-11-09 06:34:21,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:21,614 INFO L85 PathProgramCache]: Analyzing trace with hash -162689438, now seen corresponding path program 1 times [2024-11-09 06:34:21,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:21,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621877489] [2024-11-09 06:34:21,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:21,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:21,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:21,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621877489] [2024-11-09 06:34:21,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621877489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:21,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:21,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:34:21,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551488714] [2024-11-09 06:34:21,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:21,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:34:21,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:21,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:34:21,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:34:21,889 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) [2024-11-09 06:34:22,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:22,209 INFO L93 Difference]: Finished difference Result 180 states and 184 transitions. [2024-11-09 06:34:22,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:34:22,212 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 [2024-11-09 06:34:22,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:22,222 INFO L225 Difference]: With dead ends: 180 [2024-11-09 06:34:22,222 INFO L226 Difference]: Without dead ends: 125 [2024-11-09 06:34:22,225 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 [2024-11-09 06:34:22,229 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 90 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-11-09 06:34:22,231 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] [2024-11-09 06:34:22,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-09 06:34:22,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-09 06:34:22,314 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) [2024-11-09 06:34:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions. [2024-11-09 06:34:22,321 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 9 [2024-11-09 06:34:22,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:22,324 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 127 transitions. [2024-11-09 06:34:22,325 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) [2024-11-09 06:34:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions. [2024-11-09 06:34:22,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 06:34:22,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:22,329 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:22,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:34:22,330 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)] === [2024-11-09 06:34:22,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:22,333 INFO L85 PathProgramCache]: Analyzing trace with hash -748405243, now seen corresponding path program 1 times [2024-11-09 06:34:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:22,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205693883] [2024-11-09 06:34:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:22,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:22,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:22,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:22,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205693883] [2024-11-09 06:34:22,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205693883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:22,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:22,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:34:22,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564208595] [2024-11-09 06:34:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:22,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:34:22,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:22,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:34:22,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:34:22,445 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) [2024-11-09 06:34:22,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:22,608 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2024-11-09 06:34:22,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:34:22,609 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 [2024-11-09 06:34:22,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:22,610 INFO L225 Difference]: With dead ends: 125 [2024-11-09 06:34:22,610 INFO L226 Difference]: Without dead ends: 121 [2024-11-09 06:34:22,611 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 [2024-11-09 06:34:22,612 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 [2024-11-09 06:34:22,613 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] [2024-11-09 06:34:22,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-09 06:34:22,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-09 06:34:22,630 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) [2024-11-09 06:34:22,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions. [2024-11-09 06:34:22,634 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 10 [2024-11-09 06:34:22,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:22,636 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 123 transitions. [2024-11-09 06:34:22,637 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) [2024-11-09 06:34:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions. [2024-11-09 06:34:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 06:34:22,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:22,638 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:22,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:34:22,638 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)] === [2024-11-09 06:34:22,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:22,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1725726012, now seen corresponding path program 1 times [2024-11-09 06:34:22,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:22,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294979479] [2024-11-09 06:34:22,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:22,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:22,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:22,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:22,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294979479] [2024-11-09 06:34:22,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294979479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:22,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:22,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:22,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192045083] [2024-11-09 06:34:22,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:22,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:22,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:22,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:22,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:22,804 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) [2024-11-09 06:34:23,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:23,138 INFO L93 Difference]: Finished difference Result 121 states and 123 transitions. [2024-11-09 06:34:23,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:34:23,139 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 [2024-11-09 06:34:23,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:23,140 INFO L225 Difference]: With dead ends: 121 [2024-11-09 06:34:23,140 INFO L226 Difference]: Without dead ends: 118 [2024-11-09 06:34:23,141 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 [2024-11-09 06:34:23,142 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 171 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-11-09 06:34:23,143 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] [2024-11-09 06:34:23,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-09 06:34:23,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-09 06:34:23,153 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) [2024-11-09 06:34:23,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2024-11-09 06:34:23,155 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 11 [2024-11-09 06:34:23,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:23,155 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2024-11-09 06:34:23,156 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) [2024-11-09 06:34:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2024-11-09 06:34:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:34:23,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:23,157 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:23,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:34:23,157 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)] === [2024-11-09 06:34:23,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1957898777, now seen corresponding path program 1 times [2024-11-09 06:34:23,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:23,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652864747] [2024-11-09 06:34:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:23,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:23,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:23,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652864747] [2024-11-09 06:34:23,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652864747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:23,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:23,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:23,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881722911] [2024-11-09 06:34:23,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:23,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:23,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:23,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:23,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:23,254 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) [2024-11-09 06:34:23,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:23,512 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2024-11-09 06:34:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:34:23,513 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 [2024-11-09 06:34:23,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:23,514 INFO L225 Difference]: With dead ends: 118 [2024-11-09 06:34:23,515 INFO L226 Difference]: Without dead ends: 115 [2024-11-09 06:34:23,515 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 [2024-11-09 06:34:23,517 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 170 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:23,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 57 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:34:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-09 06:34:23,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-09 06:34:23,528 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) [2024-11-09 06:34:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 117 transitions. [2024-11-09 06:34:23,530 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 117 transitions. Word has length 12 [2024-11-09 06:34:23,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:23,531 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 117 transitions. [2024-11-09 06:34:23,531 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) [2024-11-09 06:34:23,531 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 117 transitions. [2024-11-09 06:34:23,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:34:23,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:23,532 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:23,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:34:23,533 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)] === [2024-11-09 06:34:23,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:23,534 INFO L85 PathProgramCache]: Analyzing trace with hash -345047415, now seen corresponding path program 1 times [2024-11-09 06:34:23,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:23,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639743026] [2024-11-09 06:34:23,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:23,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:23,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1980861213] [2024-11-09 06:34:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:23,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:23,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:23,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:23,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:34:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:23,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:34:23,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:23,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:23,661 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:23,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:23,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639743026] [2024-11-09 06:34:23,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:23,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980861213] [2024-11-09 06:34:23,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980861213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:23,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:23,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:34:23,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593571846] [2024-11-09 06:34:23,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:23,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:34:23,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:23,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:34:23,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:34:23,668 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) [2024-11-09 06:34:23,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:23,854 INFO L93 Difference]: Finished difference Result 180 states and 185 transitions. [2024-11-09 06:34:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:34:23,855 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 [2024-11-09 06:34:23,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:23,857 INFO L225 Difference]: With dead ends: 180 [2024-11-09 06:34:23,857 INFO L226 Difference]: Without dead ends: 174 [2024-11-09 06:34:23,857 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 [2024-11-09 06:34:23,859 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 57 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-11-09 06:34:23,859 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] [2024-11-09 06:34:23,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-09 06:34:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 140. [2024-11-09 06:34:23,873 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) [2024-11-09 06:34:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 158 transitions. [2024-11-09 06:34:23,875 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 158 transitions. Word has length 14 [2024-11-09 06:34:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:23,875 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 158 transitions. [2024-11-09 06:34:23,876 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) [2024-11-09 06:34:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 158 transitions. [2024-11-09 06:34:23,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:34:23,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:23,877 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:23,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:34:24,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:24,081 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)] === [2024-11-09 06:34:24,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:24,082 INFO L85 PathProgramCache]: Analyzing trace with hash -878082261, now seen corresponding path program 1 times [2024-11-09 06:34:24,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:24,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042966286] [2024-11-09 06:34:24,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:24,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:24,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827413355] [2024-11-09 06:34:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:24,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:24,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:24,111 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:24,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:34:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:24,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:34:24,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:24,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:24,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:24,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042966286] [2024-11-09 06:34:24,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:24,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827413355] [2024-11-09 06:34:24,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827413355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:24,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:24,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:34:24,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008044437] [2024-11-09 06:34:24,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:24,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:34:24,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:24,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:34:24,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:34:24,203 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) [2024-11-09 06:34:24,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:24,280 INFO L93 Difference]: Finished difference Result 237 states and 259 transitions. [2024-11-09 06:34:24,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:34:24,281 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 [2024-11-09 06:34:24,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:24,283 INFO L225 Difference]: With dead ends: 237 [2024-11-09 06:34:24,283 INFO L226 Difference]: Without dead ends: 231 [2024-11-09 06:34:24,284 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 [2024-11-09 06:34:24,288 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 87 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2024-11-09 06:34:24,290 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] [2024-11-09 06:34:24,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-09 06:34:24,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 189. [2024-11-09 06:34:24,310 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) [2024-11-09 06:34:24,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 240 transitions. [2024-11-09 06:34:24,312 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 240 transitions. Word has length 16 [2024-11-09 06:34:24,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:24,313 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 240 transitions. [2024-11-09 06:34:24,313 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) [2024-11-09 06:34:24,314 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 240 transitions. [2024-11-09 06:34:24,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 06:34:24,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:24,315 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:24,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:34:24,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 06:34:24,519 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)] === [2024-11-09 06:34:24,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:24,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2023460915, now seen corresponding path program 1 times [2024-11-09 06:34:24,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:24,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187590169] [2024-11-09 06:34:24,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:24,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:24,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382757844] [2024-11-09 06:34:24,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:24,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:24,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:24,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:24,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:34:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:24,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:34:24,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:24,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:24,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:24,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:24,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187590169] [2024-11-09 06:34:24,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:24,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382757844] [2024-11-09 06:34:24,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382757844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:24,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:24,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:24,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689522966] [2024-11-09 06:34:24,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:24,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:24,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:24,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:24,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:24,673 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) [2024-11-09 06:34:25,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:25,030 INFO L93 Difference]: Finished difference Result 257 states and 311 transitions. [2024-11-09 06:34:25,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:34:25,031 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 [2024-11-09 06:34:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:25,032 INFO L225 Difference]: With dead ends: 257 [2024-11-09 06:34:25,032 INFO L226 Difference]: Without dead ends: 255 [2024-11-09 06:34:25,033 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 [2024-11-09 06:34:25,034 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:25,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 210 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:34:25,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-09 06:34:25,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 190. [2024-11-09 06:34:25,048 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) [2024-11-09 06:34:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 240 transitions. [2024-11-09 06:34:25,050 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 240 transitions. Word has length 18 [2024-11-09 06:34:25,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:25,051 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 240 transitions. [2024-11-09 06:34:25,051 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) [2024-11-09 06:34:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 240 transitions. [2024-11-09 06:34:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 06:34:25,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:25,052 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:25,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:34:25,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 06:34:25,253 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)] === [2024-11-09 06:34:25,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:25,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1697221138, now seen corresponding path program 1 times [2024-11-09 06:34:25,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:25,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457925238] [2024-11-09 06:34:25,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:25,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:25,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [363897033] [2024-11-09 06:34:25,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:25,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:25,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:25,273 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:25,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:34:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:25,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:34:25,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:25,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:25,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:25,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:25,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457925238] [2024-11-09 06:34:25,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:25,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363897033] [2024-11-09 06:34:25,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363897033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:25,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:25,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:25,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924781559] [2024-11-09 06:34:25,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:25,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:25,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:25,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:25,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:25,375 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) [2024-11-09 06:34:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:25,762 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2024-11-09 06:34:25,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:34:25,763 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 [2024-11-09 06:34:25,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:25,764 INFO L225 Difference]: With dead ends: 256 [2024-11-09 06:34:25,764 INFO L226 Difference]: Without dead ends: 254 [2024-11-09 06:34:25,765 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 [2024-11-09 06:34:25,766 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 120 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2024-11-09 06:34:25,766 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] [2024-11-09 06:34:25,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-09 06:34:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 191. [2024-11-09 06:34:25,790 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) [2024-11-09 06:34:25,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 240 transitions. [2024-11-09 06:34:25,795 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 240 transitions. Word has length 19 [2024-11-09 06:34:25,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:25,795 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 240 transitions. [2024-11-09 06:34:25,795 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) [2024-11-09 06:34:25,795 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 240 transitions. [2024-11-09 06:34:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:34:25,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:25,796 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:34:25,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:34:25,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 06:34:25,997 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)] === [2024-11-09 06:34:25,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1074247791, now seen corresponding path program 1 times [2024-11-09 06:34:25,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:25,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48750728] [2024-11-09 06:34:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:25,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:26,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342147997] [2024-11-09 06:34:26,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:26,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:26,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:26,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:26,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:34:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:26,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:34:26,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:26,094 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:26,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:26,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48750728] [2024-11-09 06:34:26,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:26,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342147997] [2024-11-09 06:34:26,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342147997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:26,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:26,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:26,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866164394] [2024-11-09 06:34:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:26,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:26,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:26,097 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) [2024-11-09 06:34:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:26,383 INFO L93 Difference]: Finished difference Result 251 states and 269 transitions. [2024-11-09 06:34:26,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:34:26,383 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 [2024-11-09 06:34:26,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:26,385 INFO L225 Difference]: With dead ends: 251 [2024-11-09 06:34:26,385 INFO L226 Difference]: Without dead ends: 249 [2024-11-09 06:34:26,385 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 [2024-11-09 06:34:26,386 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 [2024-11-09 06:34:26,387 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] [2024-11-09 06:34:26,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-09 06:34:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 191. [2024-11-09 06:34:26,402 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) [2024-11-09 06:34:26,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 237 transitions. [2024-11-09 06:34:26,405 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 237 transitions. Word has length 20 [2024-11-09 06:34:26,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:26,407 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 237 transitions. [2024-11-09 06:34:26,407 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) [2024-11-09 06:34:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 237 transitions. [2024-11-09 06:34:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:34:26,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:26,408 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] [2024-11-09 06:34:26,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:34:26,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-09 06:34:26,609 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)] === [2024-11-09 06:34:26,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:26,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1058056780, now seen corresponding path program 1 times [2024-11-09 06:34:26,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:26,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421877131] [2024-11-09 06:34:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:26,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:26,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16093820] [2024-11-09 06:34:26,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:26,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:26,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:26,631 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:26,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:34:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:26,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:34:26,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:26,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:26,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:26,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:26,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421877131] [2024-11-09 06:34:26,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:26,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16093820] [2024-11-09 06:34:26,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16093820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:26,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:26,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:26,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589572139] [2024-11-09 06:34:26,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:26,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:26,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:26,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:26,743 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) [2024-11-09 06:34:26,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:26,971 INFO L93 Difference]: Finished difference Result 249 states and 266 transitions. [2024-11-09 06:34:26,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:34:26,972 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 [2024-11-09 06:34:26,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:26,974 INFO L225 Difference]: With dead ends: 249 [2024-11-09 06:34:26,974 INFO L226 Difference]: Without dead ends: 247 [2024-11-09 06:34:26,974 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 [2024-11-09 06:34:26,975 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 [2024-11-09 06:34:26,975 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] [2024-11-09 06:34:26,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-09 06:34:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 191. [2024-11-09 06:34:26,986 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) [2024-11-09 06:34:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 234 transitions. [2024-11-09 06:34:26,988 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 234 transitions. Word has length 21 [2024-11-09 06:34:26,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:26,988 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 234 transitions. [2024-11-09 06:34:26,989 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) [2024-11-09 06:34:26,989 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 234 transitions. [2024-11-09 06:34:26,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 06:34:26,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:26,990 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] [2024-11-09 06:34:27,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:34:27,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 06:34:27,194 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)] === [2024-11-09 06:34:27,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:27,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1559978257, now seen corresponding path program 1 times [2024-11-09 06:34:27,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:27,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227938814] [2024-11-09 06:34:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:27,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:27,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449372037] [2024-11-09 06:34:27,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:27,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:27,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:27,215 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:27,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:34:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:27,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:34:27,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:27,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:27,393 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:27,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:27,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227938814] [2024-11-09 06:34:27,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:27,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449372037] [2024-11-09 06:34:27,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449372037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:27,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:27,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:34:27,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285290753] [2024-11-09 06:34:27,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:27,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:34:27,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:27,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:34:27,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:34:27,400 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) [2024-11-09 06:34:27,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:27,951 INFO L93 Difference]: Finished difference Result 255 states and 299 transitions. [2024-11-09 06:34:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:34:27,952 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 [2024-11-09 06:34:27,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:27,953 INFO L225 Difference]: With dead ends: 255 [2024-11-09 06:34:27,953 INFO L226 Difference]: Without dead ends: 253 [2024-11-09 06:34:27,954 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 [2024-11-09 06:34:27,954 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 174 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:27,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 239 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:34:27,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-09 06:34:27,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 194. [2024-11-09 06:34:27,965 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) [2024-11-09 06:34:27,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 236 transitions. [2024-11-09 06:34:27,966 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 236 transitions. Word has length 22 [2024-11-09 06:34:27,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:27,966 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 236 transitions. [2024-11-09 06:34:27,967 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) [2024-11-09 06:34:27,967 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 236 transitions. [2024-11-09 06:34:27,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:34:27,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:27,967 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] [2024-11-09 06:34:27,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 06:34:28,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 06:34:28,172 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)] === [2024-11-09 06:34:28,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:28,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1114685782, now seen corresponding path program 1 times [2024-11-09 06:34:28,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:28,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165008722] [2024-11-09 06:34:28,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:28,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:28,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56487133] [2024-11-09 06:34:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:28,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:28,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:28,192 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:28,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 06:34:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:28,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:34:28,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:28,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:28,362 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:28,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:28,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165008722] [2024-11-09 06:34:28,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:28,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56487133] [2024-11-09 06:34:28,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56487133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:28,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:28,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:34:28,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854841112] [2024-11-09 06:34:28,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:28,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:34:28,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:28,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:34:28,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:34:28,366 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) [2024-11-09 06:34:28,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:28,847 INFO L93 Difference]: Finished difference Result 254 states and 297 transitions. [2024-11-09 06:34:28,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:34:28,847 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 [2024-11-09 06:34:28,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:28,849 INFO L225 Difference]: With dead ends: 254 [2024-11-09 06:34:28,849 INFO L226 Difference]: Without dead ends: 252 [2024-11-09 06:34:28,849 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 [2024-11-09 06:34:28,850 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 [2024-11-09 06:34:28,850 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] [2024-11-09 06:34:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-09 06:34:28,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 195. [2024-11-09 06:34:28,860 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) [2024-11-09 06:34:28,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 236 transitions. [2024-11-09 06:34:28,861 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 236 transitions. Word has length 23 [2024-11-09 06:34:28,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:28,861 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 236 transitions. [2024-11-09 06:34:28,862 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) [2024-11-09 06:34:28,862 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 236 transitions. [2024-11-09 06:34:28,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 06:34:28,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:28,863 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] [2024-11-09 06:34:28,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 06:34:29,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 06:34:29,068 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)] === [2024-11-09 06:34:29,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash 195520947, now seen corresponding path program 1 times [2024-11-09 06:34:29,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:29,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734891641] [2024-11-09 06:34:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:29,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:29,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056907631] [2024-11-09 06:34:29,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:29,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:29,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:29,088 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:29,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 06:34:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:29,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:34:29,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:29,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:29,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:29,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:29,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734891641] [2024-11-09 06:34:29,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:29,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056907631] [2024-11-09 06:34:29,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056907631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:29,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:29,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:34:29,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659117978] [2024-11-09 06:34:29,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:29,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:34:29,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:29,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:34:29,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:34:29,298 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) [2024-11-09 06:34:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:29,672 INFO L93 Difference]: Finished difference Result 246 states and 295 transitions. [2024-11-09 06:34:29,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:34:29,673 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 [2024-11-09 06:34:29,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:29,674 INFO L225 Difference]: With dead ends: 246 [2024-11-09 06:34:29,674 INFO L226 Difference]: Without dead ends: 244 [2024-11-09 06:34:29,675 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 [2024-11-09 06:34:29,676 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:29,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 178 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:34:29,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-09 06:34:29,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 196. [2024-11-09 06:34:29,686 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) [2024-11-09 06:34:29,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 236 transitions. [2024-11-09 06:34:29,688 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 236 transitions. Word has length 24 [2024-11-09 06:34:29,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:29,688 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 236 transitions. [2024-11-09 06:34:29,688 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) [2024-11-09 06:34:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 236 transitions. [2024-11-09 06:34:29,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 06:34:29,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:29,715 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] [2024-11-09 06:34:29,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 06:34:29,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 06:34:29,919 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)] === [2024-11-09 06:34:29,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:29,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1766182136, now seen corresponding path program 1 times [2024-11-09 06:34:29,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:29,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817335412] [2024-11-09 06:34:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:29,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:30,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:34:30,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:30,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817335412] [2024-11-09 06:34:30,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817335412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:34:30,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841009455] [2024-11-09 06:34:30,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:30,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:30,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:30,128 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:30,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 06:34:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:30,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:34:30,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:30,374 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:30,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841009455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:30,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:34:30,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-11-09 06:34:30,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195273342] [2024-11-09 06:34:30,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:30,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:34:30,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:30,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:34:30,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:34:30,376 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) [2024-11-09 06:34:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:30,901 INFO L93 Difference]: Finished difference Result 246 states and 293 transitions. [2024-11-09 06:34:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:34:30,901 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 [2024-11-09 06:34:30,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:30,904 INFO L225 Difference]: With dead ends: 246 [2024-11-09 06:34:30,904 INFO L226 Difference]: Without dead ends: 244 [2024-11-09 06:34:30,904 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 [2024-11-09 06:34:30,906 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:30,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 175 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:34:30,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-09 06:34:30,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 197. [2024-11-09 06:34:30,915 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) [2024-11-09 06:34:30,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 236 transitions. [2024-11-09 06:34:30,916 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 236 transitions. Word has length 25 [2024-11-09 06:34:30,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:30,917 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 236 transitions. [2024-11-09 06:34:30,917 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) [2024-11-09 06:34:30,917 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 236 transitions. [2024-11-09 06:34:30,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 06:34:30,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:30,920 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] [2024-11-09 06:34:30,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:34:31,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 06:34:31,121 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)] === [2024-11-09 06:34:31,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:31,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1312253193, now seen corresponding path program 1 times [2024-11-09 06:34:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:31,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229708305] [2024-11-09 06:34:31,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:31,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:34:31,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:31,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229708305] [2024-11-09 06:34:31,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229708305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:31,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:31,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:34:31,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083590498] [2024-11-09 06:34:31,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:31,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:34:31,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:34:31,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:34:31,235 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) [2024-11-09 06:34:31,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:31,582 INFO L93 Difference]: Finished difference Result 197 states and 236 transitions. [2024-11-09 06:34:31,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:34:31,582 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 [2024-11-09 06:34:31,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:31,584 INFO L225 Difference]: With dead ends: 197 [2024-11-09 06:34:31,584 INFO L226 Difference]: Without dead ends: 195 [2024-11-09 06:34:31,584 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 [2024-11-09 06:34:31,585 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 [2024-11-09 06:34:31,585 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] [2024-11-09 06:34:31,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-09 06:34:31,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-09 06:34:31,596 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) [2024-11-09 06:34:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 231 transitions. [2024-11-09 06:34:31,597 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 231 transitions. Word has length 28 [2024-11-09 06:34:31,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:31,598 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 231 transitions. [2024-11-09 06:34:31,598 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) [2024-11-09 06:34:31,598 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 231 transitions. [2024-11-09 06:34:31,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 06:34:31,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:31,599 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] [2024-11-09 06:34:31,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:34:31,600 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)] === [2024-11-09 06:34:31,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:31,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2025143236, now seen corresponding path program 1 times [2024-11-09 06:34:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:31,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733047697] [2024-11-09 06:34:31,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:31,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:31,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110013394] [2024-11-09 06:34:31,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:31,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:31,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:31,621 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:31,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 06:34:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:31,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:34:31,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:31,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:31,953 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:31,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:31,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733047697] [2024-11-09 06:34:31,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:31,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110013394] [2024-11-09 06:34:31,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110013394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:31,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:31,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:34:31,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629621901] [2024-11-09 06:34:31,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:31,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:34:31,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:31,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:34:31,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:34:31,958 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) [2024-11-09 06:34:32,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:32,520 INFO L93 Difference]: Finished difference Result 238 states and 285 transitions. [2024-11-09 06:34:32,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:34:32,520 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 [2024-11-09 06:34:32,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:32,522 INFO L225 Difference]: With dead ends: 238 [2024-11-09 06:34:32,523 INFO L226 Difference]: Without dead ends: 236 [2024-11-09 06:34:32,523 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 [2024-11-09 06:34:32,524 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:32,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 110 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:34:32,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-09 06:34:32,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 199. [2024-11-09 06:34:32,537 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) [2024-11-09 06:34:32,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 234 transitions. [2024-11-09 06:34:32,539 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 234 transitions. Word has length 29 [2024-11-09 06:34:32,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:32,540 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 234 transitions. [2024-11-09 06:34:32,541 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) [2024-11-09 06:34:32,541 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 234 transitions. [2024-11-09 06:34:32,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 06:34:32,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:32,543 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] [2024-11-09 06:34:32,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 06:34:32,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 06:34:32,748 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)] === [2024-11-09 06:34:32,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:32,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1645069209, now seen corresponding path program 1 times [2024-11-09 06:34:32,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:32,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196481766] [2024-11-09 06:34:32,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:32,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:32,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:32,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196481766] [2024-11-09 06:34:32,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196481766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:32,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:32,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:32,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455295646] [2024-11-09 06:34:32,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:32,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:32,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:32,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:32,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:32,855 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) [2024-11-09 06:34:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:33,213 INFO L93 Difference]: Finished difference Result 218 states and 259 transitions. [2024-11-09 06:34:33,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:34:33,214 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 [2024-11-09 06:34:33,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:33,215 INFO L225 Difference]: With dead ends: 218 [2024-11-09 06:34:33,215 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 06:34:33,216 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 [2024-11-09 06:34:33,216 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 92 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:33,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 127 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:34:33,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 06:34:33,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 200. [2024-11-09 06:34:33,226 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) [2024-11-09 06:34:33,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 234 transitions. [2024-11-09 06:34:33,228 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 234 transitions. Word has length 30 [2024-11-09 06:34:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:33,228 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 234 transitions. [2024-11-09 06:34:33,229 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) [2024-11-09 06:34:33,229 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 234 transitions. [2024-11-09 06:34:33,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 06:34:33,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:33,230 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] [2024-11-09 06:34:33,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:34:33,230 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)] === [2024-11-09 06:34:33,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:33,231 INFO L85 PathProgramCache]: Analyzing trace with hash -542461986, now seen corresponding path program 1 times [2024-11-09 06:34:33,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:33,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748093123] [2024-11-09 06:34:33,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:33,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:33,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:33,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:33,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748093123] [2024-11-09 06:34:33,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748093123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:33,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:33,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:33,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628596807] [2024-11-09 06:34:33,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:33,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:33,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:33,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:33,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:33,297 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) [2024-11-09 06:34:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:33,711 INFO L93 Difference]: Finished difference Result 218 states and 257 transitions. [2024-11-09 06:34:33,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:34:33,712 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 [2024-11-09 06:34:33,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:33,713 INFO L225 Difference]: With dead ends: 218 [2024-11-09 06:34:33,714 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 06:34:33,714 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 [2024-11-09 06:34:33,715 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 67 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2024-11-09 06:34:33,715 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] [2024-11-09 06:34:33,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 06:34:33,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 201. [2024-11-09 06:34:33,726 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) [2024-11-09 06:34:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 234 transitions. [2024-11-09 06:34:33,727 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 234 transitions. Word has length 31 [2024-11-09 06:34:33,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:33,728 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 234 transitions. [2024-11-09 06:34:33,728 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) [2024-11-09 06:34:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 234 transitions. [2024-11-09 06:34:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 06:34:33,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:33,729 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] [2024-11-09 06:34:33,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:34:33,730 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)] === [2024-11-09 06:34:33,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:33,730 INFO L85 PathProgramCache]: Analyzing trace with hash -85866976, now seen corresponding path program 1 times [2024-11-09 06:34:33,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:33,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270251450] [2024-11-09 06:34:33,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:33,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:33,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:33,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270251450] [2024-11-09 06:34:33,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270251450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:33,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:33,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:34:33,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445413562] [2024-11-09 06:34:33,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:33,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:34:33,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:33,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:34:33,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:34:33,821 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) [2024-11-09 06:34:34,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:34,217 INFO L93 Difference]: Finished difference Result 218 states and 255 transitions. [2024-11-09 06:34:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:34:34,217 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 [2024-11-09 06:34:34,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:34,219 INFO L225 Difference]: With dead ends: 218 [2024-11-09 06:34:34,219 INFO L226 Difference]: Without dead ends: 216 [2024-11-09 06:34:34,219 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 [2024-11-09 06:34:34,220 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:34,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 101 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:34:34,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-09 06:34:34,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2024-11-09 06:34:34,231 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) [2024-11-09 06:34:34,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 244 transitions. [2024-11-09 06:34:34,233 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 244 transitions. Word has length 39 [2024-11-09 06:34:34,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:34,233 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 244 transitions. [2024-11-09 06:34:34,234 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) [2024-11-09 06:34:34,234 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 244 transitions. [2024-11-09 06:34:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 06:34:34,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:34,235 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] [2024-11-09 06:34:34,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:34:34,235 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)] === [2024-11-09 06:34:34,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:34,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1633091144, now seen corresponding path program 1 times [2024-11-09 06:34:34,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:34,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849860748] [2024-11-09 06:34:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:34,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:34,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849860748] [2024-11-09 06:34:34,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849860748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:34,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:34,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:34,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402105130] [2024-11-09 06:34:34,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:34,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:34,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:34,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:34,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:34,323 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) [2024-11-09 06:34:34,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:34,456 INFO L93 Difference]: Finished difference Result 210 states and 244 transitions. [2024-11-09 06:34:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:34:34,457 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 [2024-11-09 06:34:34,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:34,458 INFO L225 Difference]: With dead ends: 210 [2024-11-09 06:34:34,459 INFO L226 Difference]: Without dead ends: 209 [2024-11-09 06:34:34,459 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 [2024-11-09 06:34:34,460 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 [2024-11-09 06:34:34,460 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] [2024-11-09 06:34:34,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-09 06:34:34,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-09 06:34:34,476 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) [2024-11-09 06:34:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 242 transitions. [2024-11-09 06:34:34,478 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 242 transitions. Word has length 40 [2024-11-09 06:34:34,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:34,478 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 242 transitions. [2024-11-09 06:34:34,478 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) [2024-11-09 06:34:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 242 transitions. [2024-11-09 06:34:34,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 06:34:34,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:34,480 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] [2024-11-09 06:34:34,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:34:34,480 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)] === [2024-11-09 06:34:34,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:34,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1737530314, now seen corresponding path program 1 times [2024-11-09 06:34:34,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:34,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765054669] [2024-11-09 06:34:34,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:34,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:34,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:34,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765054669] [2024-11-09 06:34:34,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765054669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:34,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:34,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:34,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373162550] [2024-11-09 06:34:34,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:34,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:34,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:34,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:34,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:34,595 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) [2024-11-09 06:34:34,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:34,795 INFO L93 Difference]: Finished difference Result 224 states and 259 transitions. [2024-11-09 06:34:34,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:34:34,796 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 [2024-11-09 06:34:34,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:34,797 INFO L225 Difference]: With dead ends: 224 [2024-11-09 06:34:34,797 INFO L226 Difference]: Without dead ends: 222 [2024-11-09 06:34:34,797 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 [2024-11-09 06:34:34,798 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 17 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:34,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 291 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:34:34,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-09 06:34:34,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 219. [2024-11-09 06:34:34,810 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) [2024-11-09 06:34:34,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 255 transitions. [2024-11-09 06:34:34,811 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 255 transitions. Word has length 42 [2024-11-09 06:34:34,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:34,812 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 255 transitions. [2024-11-09 06:34:34,812 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) [2024-11-09 06:34:34,812 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 255 transitions. [2024-11-09 06:34:34,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 06:34:34,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:34,813 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] [2024-11-09 06:34:34,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 06:34:34,813 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)] === [2024-11-09 06:34:34,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:34,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1976500780, now seen corresponding path program 1 times [2024-11-09 06:34:34,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:34,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704143504] [2024-11-09 06:34:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:34,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:34,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:34,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:34,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704143504] [2024-11-09 06:34:34,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704143504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:34,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:34,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:34:34,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95425837] [2024-11-09 06:34:34,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:34,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:34:34,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:34,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:34:34,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:34:34,927 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) [2024-11-09 06:34:35,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:35,329 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2024-11-09 06:34:35,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:34:35,330 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 [2024-11-09 06:34:35,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:35,332 INFO L225 Difference]: With dead ends: 220 [2024-11-09 06:34:35,332 INFO L226 Difference]: Without dead ends: 219 [2024-11-09 06:34:35,332 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 [2024-11-09 06:34:35,333 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 [2024-11-09 06:34:35,335 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] [2024-11-09 06:34:35,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-09 06:34:35,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-11-09 06:34:35,347 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) [2024-11-09 06:34:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 254 transitions. [2024-11-09 06:34:35,349 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 254 transitions. Word has length 42 [2024-11-09 06:34:35,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:35,350 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 254 transitions. [2024-11-09 06:34:35,350 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) [2024-11-09 06:34:35,350 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 254 transitions. [2024-11-09 06:34:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 06:34:35,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:35,351 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] [2024-11-09 06:34:35,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 06:34:35,351 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)] === [2024-11-09 06:34:35,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:35,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1141981916, now seen corresponding path program 1 times [2024-11-09 06:34:35,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:35,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157121830] [2024-11-09 06:34:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:35,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:35,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:35,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157121830] [2024-11-09 06:34:35,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157121830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:35,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:35,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:34:35,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89484232] [2024-11-09 06:34:35,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:35,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:34:35,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:35,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:34:35,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:34:35,427 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) [2024-11-09 06:34:35,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:35,504 INFO L93 Difference]: Finished difference Result 258 states and 269 transitions. [2024-11-09 06:34:35,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:34:35,505 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 [2024-11-09 06:34:35,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:35,507 INFO L225 Difference]: With dead ends: 258 [2024-11-09 06:34:35,507 INFO L226 Difference]: Without dead ends: 256 [2024-11-09 06:34:35,507 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 [2024-11-09 06:34:35,508 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 [2024-11-09 06:34:35,508 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] [2024-11-09 06:34:35,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-09 06:34:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 227. [2024-11-09 06:34:35,521 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) [2024-11-09 06:34:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 262 transitions. [2024-11-09 06:34:35,523 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 262 transitions. Word has length 43 [2024-11-09 06:34:35,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:35,524 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 262 transitions. [2024-11-09 06:34:35,524 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) [2024-11-09 06:34:35,524 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 262 transitions. [2024-11-09 06:34:35,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 06:34:35,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:35,525 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] [2024-11-09 06:34:35,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 06:34:35,526 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)] === [2024-11-09 06:34:35,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash -180142376, now seen corresponding path program 1 times [2024-11-09 06:34:35,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:35,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089351456] [2024-11-09 06:34:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:35,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:35,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027643869] [2024-11-09 06:34:35,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:35,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:35,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:35,547 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:35,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 06:34:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:35,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:34:35,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:35,920 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:34:35,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:35,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:35,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089351456] [2024-11-09 06:34:35,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:35,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027643869] [2024-11-09 06:34:35,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027643869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:35,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:35,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:34:35,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643482829] [2024-11-09 06:34:35,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:35,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:34:35,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:35,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:34:35,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:34:35,924 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) [2024-11-09 06:34:36,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:36,219 INFO L93 Difference]: Finished difference Result 227 states and 262 transitions. [2024-11-09 06:34:36,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:34:36,219 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 [2024-11-09 06:34:36,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:36,220 INFO L225 Difference]: With dead ends: 227 [2024-11-09 06:34:36,221 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 06:34:36,221 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 [2024-11-09 06:34:36,222 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 105 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-11-09 06:34:36,222 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] [2024-11-09 06:34:36,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 06:34:36,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-09 06:34:36,234 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) [2024-11-09 06:34:36,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2024-11-09 06:34:36,236 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 45 [2024-11-09 06:34:36,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:36,236 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2024-11-09 06:34:36,236 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) [2024-11-09 06:34:36,236 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2024-11-09 06:34:36,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 06:34:36,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:36,237 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] [2024-11-09 06:34:36,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 06:34:36,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:36,438 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)] === [2024-11-09 06:34:36,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:36,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1289446305, now seen corresponding path program 1 times [2024-11-09 06:34:36,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:36,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290877611] [2024-11-09 06:34:36,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:36,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:36,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642750572] [2024-11-09 06:34:36,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:36,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:36,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:36,459 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:36,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 06:34:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:36,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:34:36,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:34:36,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:34:38,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:38,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290877611] [2024-11-09 06:34:38,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:38,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642750572] [2024-11-09 06:34:38,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642750572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:34:38,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [499300627] [2024-11-09 06:34:38,243 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-09 06:34:38,243 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:34:38,249 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:34:38,255 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:34:38,255 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:34:43,961 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 95 for LOIs [2024-11-09 06:34:44,042 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:34:44,063 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:34:48,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [499300627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:48,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:34:48,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [8] total 25 [2024-11-09 06:34:48,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874483820] [2024-11-09 06:34:48,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:48,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 06:34:48,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:48,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 06:34:48,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2024-11-09 06:34:48,380 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) [2024-11-09 06:34:50,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:50,751 INFO L93 Difference]: Finished difference Result 239 states and 256 transitions. [2024-11-09 06:34:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:34:50,752 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 [2024-11-09 06:34:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:50,754 INFO L225 Difference]: With dead ends: 239 [2024-11-09 06:34:50,754 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 06:34:50,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 54 SyntacticMatches, 22 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=279, Invalid=1127, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:34:50,755 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 291 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:50,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 217 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:34:50,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 06:34:50,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 217. [2024-11-09 06:34:50,771 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) [2024-11-09 06:34:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 234 transitions. [2024-11-09 06:34:50,772 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 234 transitions. Word has length 46 [2024-11-09 06:34:50,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:50,773 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 234 transitions. [2024-11-09 06:34:50,773 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) [2024-11-09 06:34:50,773 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 234 transitions. [2024-11-09 06:34:50,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 06:34:50,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:50,774 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] [2024-11-09 06:34:50,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 06:34:50,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:50,979 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)] === [2024-11-09 06:34:50,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:50,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2036817043, now seen corresponding path program 1 times [2024-11-09 06:34:50,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:34:50,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786996872] [2024-11-09 06:34:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:50,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:34:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:34:51,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802078622] [2024-11-09 06:34:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:51,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:34:51,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:34:51,013 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:34:51,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 06:34:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:51,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:34:51,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:34:51,399 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:34:52,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:34:52,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786996872] [2024-11-09 06:34:52,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:34:52,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802078622] [2024-11-09 06:34:52,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802078622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:34:52,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [450601832] [2024-11-09 06:34:52,430 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 06:34:52,430 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:34:52,431 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:34:52,431 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:34:52,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:34:56,497 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 06:34:56,564 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:34:56,579 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:34:59,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [450601832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:59,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:34:59,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 26 [2024-11-09 06:34:59,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750081086] [2024-11-09 06:34:59,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:59,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 06:34:59,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:34:59,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 06:34:59,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2024-11-09 06:34:59,816 INFO L87 Difference]: Start difference. First operand 217 states and 234 transitions. Second operand has 22 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 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) [2024-11-09 06:35:02,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:02,425 INFO L93 Difference]: Finished difference Result 282 states and 307 transitions. [2024-11-09 06:35:02,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 06:35:02,425 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 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 [2024-11-09 06:35:02,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:02,427 INFO L225 Difference]: With dead ends: 282 [2024-11-09 06:35:02,427 INFO L226 Difference]: Without dead ends: 265 [2024-11-09 06:35:02,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 65 SyntacticMatches, 23 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=346, Invalid=1460, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 06:35:02,428 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 214 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:02,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 142 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:35:02,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-09 06:35:02,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 254. [2024-11-09 06:35:02,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 208 states have (on average 1.2884615384615385) internal successors, (268), 245 states have internal predecessors, (268), 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) [2024-11-09 06:35:02,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 280 transitions. [2024-11-09 06:35:02,445 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 280 transitions. Word has length 50 [2024-11-09 06:35:02,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:02,445 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 280 transitions. [2024-11-09 06:35:02,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 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) [2024-11-09 06:35:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 280 transitions. [2024-11-09 06:35:02,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 06:35:02,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:02,447 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] [2024-11-09 06:35:02,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 06:35:02,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:02,651 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)] === [2024-11-09 06:35:02,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:02,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1123910479, now seen corresponding path program 1 times [2024-11-09 06:35:02,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:02,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729676077] [2024-11-09 06:35:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:02,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:35:02,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [235112510] [2024-11-09 06:35:02,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:02,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:02,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:02,684 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:02,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 06:35:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:02,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:35:02,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:03,059 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:35:03,059 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:03,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:03,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729676077] [2024-11-09 06:35:03,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:35:03,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235112510] [2024-11-09 06:35:03,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235112510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:03,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [890832108] [2024-11-09 06:35:03,694 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 06:35:03,695 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:35:03,695 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:35:03,695 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:35:03,696 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:35:06,851 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 06:35:06,887 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:35:06,901 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:35:12,143 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13056#(exists ((|v_ULTIMATE.start_main_~y~0#1_42| Int) (|v_ULTIMATE.start_main_~X~0#1_67| Int)) (and (<= 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_~x~0#1| 3) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ |ULTIMATE.start_main_~v~0#1| 4)) (<= |v_ULTIMATE.start_main_~X~0#1_67| 2) (<= |v_ULTIMATE.start_main_~y~0#1_42| 9223372036854775807) (<= |ULTIMATE.start_main_~Y~0#1| 2) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|)))' at error location [2024-11-09 06:35:12,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:35:12,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:35:12,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 06:35:12,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646137412] [2024-11-09 06:35:12,143 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:35:12,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:35:12,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:12,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:35:12,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 06:35:12,145 INFO L87 Difference]: Start difference. First operand 254 states and 280 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) [2024-11-09 06:35:12,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:12,474 INFO L93 Difference]: Finished difference Result 378 states and 429 transitions. [2024-11-09 06:35:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:35:12,474 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 [2024-11-09 06:35:12,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:12,476 INFO L225 Difference]: With dead ends: 378 [2024-11-09 06:35:12,476 INFO L226 Difference]: Without dead ends: 376 [2024-11-09 06:35:12,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 68 SyntacticMatches, 23 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 06:35:12,477 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 324 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:12,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 315 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:35:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-09 06:35:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 334. [2024-11-09 06:35:12,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 286 states have (on average 1.3391608391608392) internal successors, (383), 323 states have internal predecessors, (383), 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) [2024-11-09 06:35:12,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 399 transitions. [2024-11-09 06:35:12,500 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 399 transitions. Word has length 52 [2024-11-09 06:35:12,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:12,500 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 399 transitions. [2024-11-09 06:35:12,501 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) [2024-11-09 06:35:12,501 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 399 transitions. [2024-11-09 06:35:12,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 06:35:12,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:12,502 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] [2024-11-09 06:35:12,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 06:35:12,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 06:35:12,709 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)] === [2024-11-09 06:35:12,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:12,709 INFO L85 PathProgramCache]: Analyzing trace with hash -359750401, now seen corresponding path program 1 times [2024-11-09 06:35:12,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:12,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849485570] [2024-11-09 06:35:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:12,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:12,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:12,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849485570] [2024-11-09 06:35:12,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849485570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:12,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:35:12,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:35:12,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411263922] [2024-11-09 06:35:12,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:12,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:35:12,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:12,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:35:12,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:35:12,834 INFO L87 Difference]: Start difference. First operand 334 states and 399 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) [2024-11-09 06:35:13,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:13,268 INFO L93 Difference]: Finished difference Result 343 states and 408 transitions. [2024-11-09 06:35:13,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:35:13,269 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 [2024-11-09 06:35:13,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:13,270 INFO L225 Difference]: With dead ends: 343 [2024-11-09 06:35:13,270 INFO L226 Difference]: Without dead ends: 342 [2024-11-09 06:35:13,270 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 [2024-11-09 06:35:13,271 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 47 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2024-11-09 06:35:13,271 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] [2024-11-09 06:35:13,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-09 06:35:13,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 337. [2024-11-09 06:35:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 289 states have (on average 1.3356401384083045) internal successors, (386), 326 states have internal predecessors, (386), 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) [2024-11-09 06:35:13,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 402 transitions. [2024-11-09 06:35:13,294 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 402 transitions. Word has length 56 [2024-11-09 06:35:13,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:13,294 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 402 transitions. [2024-11-09 06:35:13,294 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) [2024-11-09 06:35:13,295 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 402 transitions. [2024-11-09 06:35:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 06:35:13,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:13,295 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] [2024-11-09 06:35:13,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 06:35:13,296 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)] === [2024-11-09 06:35:13,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:13,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1225133293, now seen corresponding path program 1 times [2024-11-09 06:35:13,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:13,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190379288] [2024-11-09 06:35:13,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:13,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:35:13,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726390469] [2024-11-09 06:35:13,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:13,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:13,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:13,334 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:13,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 06:35:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:13,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:35:13,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:13,626 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:35:13,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:14,135 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:35:14,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:14,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190379288] [2024-11-09 06:35:14,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:35:14,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726390469] [2024-11-09 06:35:14,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726390469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:35:14,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1131759273] [2024-11-09 06:35:14,139 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 06:35:14,139 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:35:14,139 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:35:14,139 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:35:14,139 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:35:17,256 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 06:35:17,291 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:35:17,302 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:35:21,203 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14890#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~X~0#1| 2) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 3) (<= |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) (<= 0 (+ |ULTIMATE.start_main_~v~0#1| 4)) (<= |ULTIMATE.start_main_~Y~0#1| 2) (<= 0 |ULTIMATE.start_main_~X~0#1|) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|))' at error location [2024-11-09 06:35:21,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:35:21,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:35:21,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-09 06:35:21,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70898110] [2024-11-09 06:35:21,204 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:35:21,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:35:21,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:21,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:35:21,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=976, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 06:35:21,205 INFO L87 Difference]: Start difference. First operand 337 states and 402 transitions. Second operand has 13 states, 11 states have (on average 8.727272727272727) internal successors, (96), 13 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) [2024-11-09 06:35:22,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:22,664 INFO L93 Difference]: Finished difference Result 514 states and 584 transitions. [2024-11-09 06:35:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 06:35:22,665 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.727272727272727) internal successors, (96), 13 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 [2024-11-09 06:35:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:22,668 INFO L225 Difference]: With dead ends: 514 [2024-11-09 06:35:22,668 INFO L226 Difference]: Without dead ends: 509 [2024-11-09 06:35:22,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 108 SyntacticMatches, 26 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=276, Invalid=1794, Unknown=0, NotChecked=0, Total=2070 [2024-11-09 06:35:22,675 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 887 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:22,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 487 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:35:22,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-09 06:35:22,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 399. [2024-11-09 06:35:22,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 349 states have (on average 1.3151862464183381) internal successors, (459), 386 states have internal predecessors, (459), 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) [2024-11-09 06:35:22,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 479 transitions. [2024-11-09 06:35:22,706 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 479 transitions. Word has length 56 [2024-11-09 06:35:22,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:22,706 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 479 transitions. [2024-11-09 06:35:22,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.727272727272727) internal successors, (96), 13 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) [2024-11-09 06:35:22,707 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 479 transitions. [2024-11-09 06:35:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 06:35:22,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:22,711 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, 1] [2024-11-09 06:35:22,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-09 06:35:22,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 06:35:22,915 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:35:22,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:22,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1732639632, now seen corresponding path program 1 times [2024-11-09 06:35:22,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:22,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642902025] [2024-11-09 06:35:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:22,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:23,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:23,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642902025] [2024-11-09 06:35:23,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642902025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:23,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:35:23,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:35:23,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878154158] [2024-11-09 06:35:23,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:23,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:35:23,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:23,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:35:23,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:35:23,014 INFO L87 Difference]: Start difference. First operand 399 states and 479 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-09 06:35:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:23,321 INFO L93 Difference]: Finished difference Result 405 states and 484 transitions. [2024-11-09 06:35:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:35:23,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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 57 [2024-11-09 06:35:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:23,323 INFO L225 Difference]: With dead ends: 405 [2024-11-09 06:35:23,324 INFO L226 Difference]: Without dead ends: 382 [2024-11-09 06:35:23,324 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 [2024-11-09 06:35:23,324 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 44 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:23,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 119 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:35:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-09 06:35:23,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 378. [2024-11-09 06:35:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 328 states have (on average 1.3323170731707317) internal successors, (437), 365 states have internal predecessors, (437), 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) [2024-11-09 06:35:23,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 457 transitions. [2024-11-09 06:35:23,350 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 457 transitions. Word has length 57 [2024-11-09 06:35:23,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:23,350 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 457 transitions. [2024-11-09 06:35:23,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-09 06:35:23,350 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 457 transitions. [2024-11-09 06:35:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 06:35:23,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:23,351 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] [2024-11-09 06:35:23,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 06:35:23,352 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)] === [2024-11-09 06:35:23,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:23,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1222951194, now seen corresponding path program 1 times [2024-11-09 06:35:23,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:23,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977870471] [2024-11-09 06:35:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:23,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:35:23,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638043491] [2024-11-09 06:35:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:23,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:23,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:23,375 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:23,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 06:35:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:23,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:35:23,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:23,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:35:24,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:24,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977870471] [2024-11-09 06:35:24,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:35:24,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638043491] [2024-11-09 06:35:24,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638043491] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:35:24,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [634717785] [2024-11-09 06:35:24,161 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 06:35:24,161 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:35:24,161 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:35:24,162 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:35:24,162 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:35:27,029 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 06:35:27,072 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:35:27,081 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:35:31,730 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17126#(exists ((|v_ULTIMATE.start_main_~xy~0#1_80| Int) (|v_ULTIMATE.start_main_~X~0#1_70| Int) (|v_ULTIMATE.start_main_~Y~0#1_84| Int) (|v_ULTIMATE.start_main_~v~0#1_67| Int) (|v_ULTIMATE.start_main_~yx~0#1_80| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~X~0#1_70| 2) (<= |v_ULTIMATE.start_main_~Y~0#1_84| 2) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_80|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |v_ULTIMATE.start_main_~xy~0#1_80| 4611686018427387903) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_84|) (<= |ULTIMATE.start_main_~x~0#1| 3) (<= |v_ULTIMATE.start_main_~v~0#1_67| 9223372036854775807) (<= |v_ULTIMATE.start_main_~yx~0#1_80| 6) (<= 0 |v_ULTIMATE.start_main_~X~0#1_70|) (<= (+ 9223372036854775809 (* 2 |v_ULTIMATE.start_main_~Y~0#1_84|) (* 2 |v_ULTIMATE.start_main_~yx~0#1_80|)) (+ |v_ULTIMATE.start_main_~X~0#1_70| |v_ULTIMATE.start_main_~v~0#1_67| (* 2 |v_ULTIMATE.start_main_~xy~0#1_80|))) (<= |ULTIMATE.start_main_~y~0#1| 9223372036854775807)))' at error location [2024-11-09 06:35:31,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:35:31,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:35:31,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-09 06:35:31,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801295534] [2024-11-09 06:35:31,731 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:35:31,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:35:31,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:31,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:35:31,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1209, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:35:31,733 INFO L87 Difference]: Start difference. First operand 378 states and 457 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) [2024-11-09 06:35:33,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:33,839 INFO L93 Difference]: Finished difference Result 540 states and 683 transitions. [2024-11-09 06:35:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 06:35:33,840 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 [2024-11-09 06:35:33,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:33,841 INFO L225 Difference]: With dead ends: 540 [2024-11-09 06:35:33,841 INFO L226 Difference]: Without dead ends: 538 [2024-11-09 06:35:33,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 125 SyntacticMatches, 33 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1212 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=264, Invalid=2186, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 06:35:33,842 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 277 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:33,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 307 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:35:33,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-09 06:35:33,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 474. [2024-11-09 06:35:33,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 422 states have (on average 1.3791469194312795) internal successors, (582), 459 states have internal predecessors, (582), 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) [2024-11-09 06:35:33,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 606 transitions. [2024-11-09 06:35:33,876 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 606 transitions. Word has length 65 [2024-11-09 06:35:33,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:33,876 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 606 transitions. [2024-11-09 06:35:33,876 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) [2024-11-09 06:35:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 606 transitions. [2024-11-09 06:35:33,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 06:35:33,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:33,878 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] [2024-11-09 06:35:33,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 06:35:34,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:34,082 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)] === [2024-11-09 06:35:34,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:34,082 INFO L85 PathProgramCache]: Analyzing trace with hash -49250434, now seen corresponding path program 1 times [2024-11-09 06:35:34,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:34,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902398196] [2024-11-09 06:35:34,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:34,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 06:35:34,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:34,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902398196] [2024-11-09 06:35:34,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902398196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:34,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:35:34,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:35:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019731855] [2024-11-09 06:35:34,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:34,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:35:34,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:34,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:35:34,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:35:34,165 INFO L87 Difference]: Start difference. First operand 474 states and 606 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) [2024-11-09 06:35:34,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:34,737 INFO L93 Difference]: Finished difference Result 474 states and 606 transitions. [2024-11-09 06:35:34,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:35:34,737 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 [2024-11-09 06:35:34,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:34,739 INFO L225 Difference]: With dead ends: 474 [2024-11-09 06:35:34,739 INFO L226 Difference]: Without dead ends: 473 [2024-11-09 06:35:34,739 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 [2024-11-09 06:35:34,740 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 142 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:34,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 95 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:35:34,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-11-09 06:35:34,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2024-11-09 06:35:34,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 422 states have (on average 1.367298578199052) internal successors, (577), 458 states have internal predecessors, (577), 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) [2024-11-09 06:35:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 601 transitions. [2024-11-09 06:35:34,774 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 601 transitions. Word has length 71 [2024-11-09 06:35:34,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:34,774 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 601 transitions. [2024-11-09 06:35:34,775 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) [2024-11-09 06:35:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 601 transitions. [2024-11-09 06:35:34,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 06:35:34,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:34,776 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] [2024-11-09 06:35:34,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 06:35:34,776 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)] === [2024-11-09 06:35:34,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:34,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1526763311, now seen corresponding path program 1 times [2024-11-09 06:35:34,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:34,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933396834] [2024-11-09 06:35:34,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:34,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:35,001 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 06:35:35,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:35,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933396834] [2024-11-09 06:35:35,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933396834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:35,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:35:35,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:35:35,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788728653] [2024-11-09 06:35:35,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:35,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:35:35,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:35,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:35:35,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:35:35,003 INFO L87 Difference]: Start difference. First operand 473 states and 601 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) [2024-11-09 06:35:36,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:36,060 INFO L93 Difference]: Finished difference Result 473 states and 601 transitions. [2024-11-09 06:35:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:35:36,061 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 [2024-11-09 06:35:36,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:36,063 INFO L225 Difference]: With dead ends: 473 [2024-11-09 06:35:36,063 INFO L226 Difference]: Without dead ends: 471 [2024-11-09 06:35:36,064 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 [2024-11-09 06:35:36,064 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 139 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:36,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 95 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:35:36,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-09 06:35:36,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 462. [2024-11-09 06:35:36,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 413 states have (on average 1.3462469733656175) internal successors, (556), 447 states have internal predecessors, (556), 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) [2024-11-09 06:35:36,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 580 transitions. [2024-11-09 06:35:36,097 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 580 transitions. Word has length 72 [2024-11-09 06:35:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:36,098 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 580 transitions. [2024-11-09 06:35:36,098 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) [2024-11-09 06:35:36,098 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 580 transitions. [2024-11-09 06:35:36,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 06:35:36,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:36,099 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] [2024-11-09 06:35:36,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 06:35:36,099 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:35:36,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1658422683, now seen corresponding path program 1 times [2024-11-09 06:35:36,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:36,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710893388] [2024-11-09 06:35:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:36,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:35:36,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339251844] [2024-11-09 06:35:36,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:36,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:36,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:36,121 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:36,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 06:35:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:36,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:35:36,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:36,490 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:35:36,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:37,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:37,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710893388] [2024-11-09 06:35:37,543 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:35:37,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339251844] [2024-11-09 06:35:37,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339251844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:37,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1516265323] [2024-11-09 06:35:37,545 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-09 06:35:37,546 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:35:37,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:35:37,546 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:35:37,546 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:35:40,228 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 06:35:40,264 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:35:40,273 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:35:45,979 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20587#(exists ((|v_ULTIMATE.start_main_~x~0#1_65| Int) (|v_ULTIMATE.start_main_~y~0#1_61| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ |ULTIMATE.start_main_~X~0#1| 1) |v_ULTIMATE.start_main_~x~0#1_65|) (<= |ULTIMATE.start_main_~X~0#1| 2) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_65| |v_ULTIMATE.start_main_~y~0#1_61|)) (<= 0 |ULTIMATE.start_main_~Y~0#1|) (<= 0 |ULTIMATE.start_main_~yx~0#1|) (<= 0 |ULTIMATE.start_main_~xy~0#1|) (<= |ULTIMATE.start_main_~Y~0#1| 2) (<= 0 |ULTIMATE.start_main_~X~0#1|)))' at error location [2024-11-09 06:35:45,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:35:45,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:35:45,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 06:35:45,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429950876] [2024-11-09 06:35:45,980 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:35:45,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:35:45,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:45,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:35:45,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1258, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:35:45,981 INFO L87 Difference]: Start difference. First operand 462 states and 580 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 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) [2024-11-09 06:35:46,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:46,276 INFO L93 Difference]: Finished difference Result 473 states and 591 transitions. [2024-11-09 06:35:46,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:35:46,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 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 72 [2024-11-09 06:35:46,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:46,278 INFO L225 Difference]: With dead ends: 473 [2024-11-09 06:35:46,278 INFO L226 Difference]: Without dead ends: 472 [2024-11-09 06:35:46,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 111 SyntacticMatches, 35 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=154, Invalid=1328, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:35:46,279 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 28 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:46,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 449 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:35:46,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-09 06:35:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 463. [2024-11-09 06:35:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 414 states have (on average 1.3454106280193237) internal successors, (557), 448 states have internal predecessors, (557), 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) [2024-11-09 06:35:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 581 transitions. [2024-11-09 06:35:46,313 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 581 transitions. Word has length 72 [2024-11-09 06:35:46,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:46,314 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 581 transitions. [2024-11-09 06:35:46,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 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) [2024-11-09 06:35:46,314 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 581 transitions. [2024-11-09 06:35:46,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 06:35:46,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:46,315 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] [2024-11-09 06:35:46,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 06:35:46,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 06:35:46,519 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:35:46,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:46,519 INFO L85 PathProgramCache]: Analyzing trace with hash -101989310, now seen corresponding path program 1 times [2024-11-09 06:35:46,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:46,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560401661] [2024-11-09 06:35:46,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:46,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:46,728 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:35:46,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:46,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560401661] [2024-11-09 06:35:46,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560401661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:46,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566620161] [2024-11-09 06:35:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:46,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:46,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:46,731 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:46,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 06:35:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:46,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:35:46,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:47,092 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 06:35:47,092 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:35:47,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566620161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:47,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:35:47,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 06:35:47,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241935106] [2024-11-09 06:35:47,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:47,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:35:47,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:47,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:35:47,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:35:47,094 INFO L87 Difference]: Start difference. First operand 463 states and 581 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) [2024-11-09 06:35:48,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:48,065 INFO L93 Difference]: Finished difference Result 493 states and 612 transitions. [2024-11-09 06:35:48,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:35:48,065 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 [2024-11-09 06:35:48,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:48,066 INFO L225 Difference]: With dead ends: 493 [2024-11-09 06:35:48,066 INFO L226 Difference]: Without dead ends: 492 [2024-11-09 06:35:48,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:35:48,067 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 190 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:48,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 228 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:35:48,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-09 06:35:48,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 464. [2024-11-09 06:35:48,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 415 states have (on average 1.344578313253012) internal successors, (558), 449 states have internal predecessors, (558), 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) [2024-11-09 06:35:48,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 582 transitions. [2024-11-09 06:35:48,100 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 582 transitions. Word has length 75 [2024-11-09 06:35:48,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:48,101 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 582 transitions. [2024-11-09 06:35:48,101 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) [2024-11-09 06:35:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 582 transitions. [2024-11-09 06:35:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 06:35:48,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:48,102 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] [2024-11-09 06:35:48,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 06:35:48,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-09 06:35:48,303 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:35:48,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:48,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1133298837, now seen corresponding path program 1 times [2024-11-09 06:35:48,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:48,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197026812] [2024-11-09 06:35:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:48,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:48,560 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:35:48,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:48,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197026812] [2024-11-09 06:35:48,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197026812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:48,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137514338] [2024-11-09 06:35:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:48,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:48,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:48,563 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:48,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 06:35:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:48,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:35:48,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 06:35:48,747 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:35:48,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137514338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:48,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:35:48,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-09 06:35:48,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920862205] [2024-11-09 06:35:48,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:48,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:35:48,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:48,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:35:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:35:48,749 INFO L87 Difference]: Start difference. First operand 464 states and 582 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) [2024-11-09 06:35:48,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:48,886 INFO L93 Difference]: Finished difference Result 492 states and 611 transitions. [2024-11-09 06:35:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:35:48,886 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 [2024-11-09 06:35:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:48,888 INFO L225 Difference]: With dead ends: 492 [2024-11-09 06:35:48,888 INFO L226 Difference]: Without dead ends: 491 [2024-11-09 06:35:48,888 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 [2024-11-09 06:35:48,889 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:48,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 226 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:35:48,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-09 06:35:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 465. [2024-11-09 06:35:48,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 416 states have (on average 1.34375) internal successors, (559), 450 states have internal predecessors, (559), 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) [2024-11-09 06:35:48,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 583 transitions. [2024-11-09 06:35:48,924 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 583 transitions. Word has length 76 [2024-11-09 06:35:48,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:48,924 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 583 transitions. [2024-11-09 06:35:48,924 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) [2024-11-09 06:35:48,924 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 583 transitions. [2024-11-09 06:35:48,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:35:48,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:48,926 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] [2024-11-09 06:35:48,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 06:35:49,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:49,131 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:35:49,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash 772525732, now seen corresponding path program 1 times [2024-11-09 06:35:49,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:49,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330164200] [2024-11-09 06:35:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:49,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:35:49,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:49,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330164200] [2024-11-09 06:35:49,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330164200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:49,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112433114] [2024-11-09 06:35:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:49,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:49,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:49,255 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:49,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 06:35:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:49,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:35:49,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:35:49,439 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:49,559 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:35:49,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112433114] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:35:49,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1617886611] [2024-11-09 06:35:49,561 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-09 06:35:49,561 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:35:49,562 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:35:49,562 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:35:49,562 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:35:51,786 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 95 for LOIs [2024-11-09 06:35:51,848 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:35:51,862 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:35:55,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1617886611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:55,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:35:55,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [6, 6, 6] total 30 [2024-11-09 06:35:55,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721140705] [2024-11-09 06:35:55,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:55,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:35:55,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:35:55,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:35:55,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=826, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:35:55,166 INFO L87 Difference]: Start difference. First operand 465 states and 583 transitions. Second operand has 23 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 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) [2024-11-09 06:35:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:57,493 INFO L93 Difference]: Finished difference Result 480 states and 600 transitions. [2024-11-09 06:35:57,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:35:57,493 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 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 [2024-11-09 06:35:57,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:57,495 INFO L225 Difference]: With dead ends: 480 [2024-11-09 06:35:57,496 INFO L226 Difference]: Without dead ends: 477 [2024-11-09 06:35:57,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 168 SyntacticMatches, 38 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=245, Invalid=1395, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 06:35:57,497 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 209 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:57,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 136 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:35:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-09 06:35:57,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476. [2024-11-09 06:35:57,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 427 states have (on average 1.3395784543325526) internal successors, (572), 461 states have internal predecessors, (572), 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) [2024-11-09 06:35:57,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 596 transitions. [2024-11-09 06:35:57,531 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 596 transitions. Word has length 77 [2024-11-09 06:35:57,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:57,532 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 596 transitions. [2024-11-09 06:35:57,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 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) [2024-11-09 06:35:57,532 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 596 transitions. [2024-11-09 06:35:57,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:35:57,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:57,533 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] [2024-11-09 06:35:57,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 06:35:57,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-09 06:35:57,734 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:35:57,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:57,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2120439278, now seen corresponding path program 1 times [2024-11-09 06:35:57,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:35:57,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221621413] [2024-11-09 06:35:57,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:57,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:35:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:35:57,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183623660] [2024-11-09 06:35:57,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:57,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:57,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:57,773 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:57,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 06:35:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:57,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:35:57,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:35:58,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:58,292 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:35:58,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:35:58,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221621413] [2024-11-09 06:35:58,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:35:58,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183623660] [2024-11-09 06:35:58,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183623660] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:35:58,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [19285077] [2024-11-09 06:35:58,295 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-09 06:35:58,295 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:35:58,295 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:35:58,295 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:35:58,295 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:36:01,126 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 50 for LOIs [2024-11-09 06:36:01,132 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:36:01,142 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:36:05,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [19285077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:05,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:36:05,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [7, 7] total 36 [2024-11-09 06:36:05,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347527488] [2024-11-09 06:36:05,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:05,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 06:36:05,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:36:05,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 06:36:05,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1172, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 06:36:05,789 INFO L87 Difference]: Start difference. First operand 476 states and 596 transitions. Second operand has 25 states, 20 states have (on average 2.4) internal successors, (48), 20 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) [2024-11-09 06:36:09,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:09,399 INFO L93 Difference]: Finished difference Result 547 states and 691 transitions. [2024-11-09 06:36:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 06:36:09,399 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 2.4) internal successors, (48), 20 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 [2024-11-09 06:36:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:09,401 INFO L225 Difference]: With dead ends: 547 [2024-11-09 06:36:09,401 INFO L226 Difference]: Without dead ends: 543 [2024-11-09 06:36:09,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 156 SyntacticMatches, 38 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1123 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=434, Invalid=2322, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 06:36:09,402 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 366 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:09,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 186 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:36:09,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-09 06:36:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 520. [2024-11-09 06:36:09,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 471 states have (on average 1.3397027600849256) internal successors, (631), 505 states have internal predecessors, (631), 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) [2024-11-09 06:36:09,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 655 transitions. [2024-11-09 06:36:09,439 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 655 transitions. Word has length 77 [2024-11-09 06:36:09,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:09,440 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 655 transitions. [2024-11-09 06:36:09,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 2.4) internal successors, (48), 20 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) [2024-11-09 06:36:09,440 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 655 transitions. [2024-11-09 06:36:09,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:36:09,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:09,441 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] [2024-11-09 06:36:09,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 06:36:09,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:36:09,646 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:36:09,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:09,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1921334827, now seen corresponding path program 1 times [2024-11-09 06:36:09,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:36:09,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427659001] [2024-11-09 06:36:09,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:09,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:36:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:09,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:36:09,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427659001] [2024-11-09 06:36:09,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427659001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:36:09,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503194697] [2024-11-09 06:36:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:09,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:36:09,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:36:09,795 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:36:09,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 06:36:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:09,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:36:09,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:10,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:36:10,625 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:10,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503194697] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:36:10,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1918488991] [2024-11-09 06:36:10,627 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 06:36:10,628 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:36:10,628 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:36:10,628 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:36:10,628 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:36:13,237 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 06:36:13,273 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:36:13,284 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:36:18,533 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27737#(exists ((|v_ULTIMATE.start_main_~X~0#1_72| Int) (|v_ULTIMATE.start_main_~Y~0#1_86| 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|) (<= 0 |ULTIMATE.start_main_~xy~0#1|) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_86|) (<= |v_ULTIMATE.start_main_~Y~0#1_86| 2) (<= |ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_main_~X~0#1_72|) (<= |v_ULTIMATE.start_main_~X~0#1_72| 2)))' at error location [2024-11-09 06:36:18,534 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:36:18,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:36:18,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 17 [2024-11-09 06:36:18,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718926548] [2024-11-09 06:36:18,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:36:18,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:36:18,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:36:18,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:36:18,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1305, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 06:36:18,535 INFO L87 Difference]: Start difference. First operand 520 states and 655 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) [2024-11-09 06:36:19,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:19,896 INFO L93 Difference]: Finished difference Result 861 states and 1067 transitions. [2024-11-09 06:36:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:36:19,897 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 [2024-11-09 06:36:19,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:19,899 INFO L225 Difference]: With dead ends: 861 [2024-11-09 06:36:19,899 INFO L226 Difference]: Without dead ends: 860 [2024-11-09 06:36:19,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 159 SyntacticMatches, 39 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1543 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=433, Invalid=2537, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 06:36:19,910 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 512 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:19,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 592 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:36:19,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-09 06:36:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 688. [2024-11-09 06:36:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 634 states have (on average 1.3454258675078865) internal successors, (853), 668 states have internal predecessors, (853), 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) [2024-11-09 06:36:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 887 transitions. [2024-11-09 06:36:19,969 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 887 transitions. Word has length 77 [2024-11-09 06:36:19,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:19,969 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 887 transitions. [2024-11-09 06:36:19,969 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) [2024-11-09 06:36:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 887 transitions. [2024-11-09 06:36:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:36:19,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:19,971 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] [2024-11-09 06:36:19,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 06:36:20,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 06:36:20,172 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:36:20,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:20,173 INFO L85 PathProgramCache]: Analyzing trace with hash -855759047, now seen corresponding path program 1 times [2024-11-09 06:36:20,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:36:20,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273599793] [2024-11-09 06:36:20,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:20,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:36:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:20,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:36:20,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273599793] [2024-11-09 06:36:20,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273599793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:36:20,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147757510] [2024-11-09 06:36:20,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:20,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:36:20,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:36:20,275 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:36:20,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 06:36:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:20,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:36:20,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:20,434 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:36:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:20,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147757510] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:36:20,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1331593606] [2024-11-09 06:36:20,535 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:36:20,535 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:36:20,535 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:36:20,535 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:36:20,536 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:36:24,691 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:36:24,726 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:36:24,735 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:36:31,453 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29887#(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 [2024-11-09 06:36:31,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:36:31,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:36:31,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 06:36:31,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058166670] [2024-11-09 06:36:31,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:36:31,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:36:31,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:36:31,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:36:31,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2713, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 06:36:31,455 INFO L87 Difference]: Start difference. First operand 688 states and 887 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) [2024-11-09 06:36:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:31,695 INFO L93 Difference]: Finished difference Result 1019 states and 1279 transitions. [2024-11-09 06:36:31,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:36:31,696 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 [2024-11-09 06:36:31,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:31,698 INFO L225 Difference]: With dead ends: 1019 [2024-11-09 06:36:31,698 INFO L226 Difference]: Without dead ends: 1018 [2024-11-09 06:36:31,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 182 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1214 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=257, Invalid=2713, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 06:36:31,699 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 81 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:31,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 751 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:36:31,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2024-11-09 06:36:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 928. [2024-11-09 06:36:31,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 868 states have (on average 1.3225806451612903) internal successors, (1148), 902 states have internal predecessors, (1148), 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) [2024-11-09 06:36:31,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1194 transitions. [2024-11-09 06:36:31,769 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1194 transitions. Word has length 78 [2024-11-09 06:36:31,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:31,770 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1194 transitions. [2024-11-09 06:36:31,770 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) [2024-11-09 06:36:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1194 transitions. [2024-11-09 06:36:31,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:36:31,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:31,771 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] [2024-11-09 06:36:31,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 06:36:31,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 06:36:31,972 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:36:31,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:31,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1309108031, now seen corresponding path program 1 times [2024-11-09 06:36:31,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:36:31,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955815947] [2024-11-09 06:36:31,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:31,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:36:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:36:31,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909822313] [2024-11-09 06:36:31,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:31,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:36:31,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:36:31,993 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:36:31,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 06:36:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:32,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:36:32,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:32,304 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:36:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:32,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:36:32,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955815947] [2024-11-09 06:36:32,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:36:32,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909822313] [2024-11-09 06:36:32,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909822313] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:36:32,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [898144366] [2024-11-09 06:36:32,809 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2024-11-09 06:36:32,809 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:36:32,810 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:36:32,810 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:36:32,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:36:35,653 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 50 for LOIs [2024-11-09 06:36:35,659 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:36:35,667 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:36:41,646 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32449#(and (exists ((|v_ULTIMATE.start_main_~x~0#1_105| Int) (|v_ULTIMATE.start_main_~yx~0#1_115| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~X~0#1| 2) (<= 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) (<= 4611686018427387904 (* |v_ULTIMATE.start_main_~x~0#1_105| |ULTIMATE.start_main_~y~0#1|)) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_115|) (<= |ULTIMATE.start_main_~Y~0#1| 2) (<= 0 |ULTIMATE.start_main_~X~0#1|) (= |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 [2024-11-09 06:36:41,646 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:36:41,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:36:41,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-09 06:36:41,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33195803] [2024-11-09 06:36:41,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:36:41,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:36:41,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:36:41,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:36:41,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:36:41,648 INFO L87 Difference]: Start difference. First operand 928 states and 1194 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) [2024-11-09 06:36:44,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:44,613 INFO L93 Difference]: Finished difference Result 966 states and 1227 transitions. [2024-11-09 06:36:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:36:44,614 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 [2024-11-09 06:36:44,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:44,616 INFO L225 Difference]: With dead ends: 966 [2024-11-09 06:36:44,616 INFO L226 Difference]: Without dead ends: 964 [2024-11-09 06:36:44,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 158 SyntacticMatches, 38 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1054 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=196, Invalid=2156, Unknown=0, NotChecked=0, Total=2352 [2024-11-09 06:36:44,618 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 218 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:44,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 608 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 06:36:44,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-11-09 06:36:44,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 936. [2024-11-09 06:36:44,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 876 states have (on average 1.3184931506849316) internal successors, (1155), 910 states have internal predecessors, (1155), 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) [2024-11-09 06:36:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1201 transitions. [2024-11-09 06:36:44,687 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1201 transitions. Word has length 78 [2024-11-09 06:36:44,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:44,688 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1201 transitions. [2024-11-09 06:36:44,688 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) [2024-11-09 06:36:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1201 transitions. [2024-11-09 06:36:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 06:36:44,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:44,689 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] [2024-11-09 06:36:44,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 06:36:44,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:36:44,894 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:36:44,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:44,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1927643148, now seen corresponding path program 1 times [2024-11-09 06:36:44,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:36:44,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535995015] [2024-11-09 06:36:44,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:44,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:36:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:36:44,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875905574] [2024-11-09 06:36:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:44,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:36:44,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:36:44,928 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:36:44,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 06:36:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:45,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:36:45,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:45,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:36:46,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:36:46,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535995015] [2024-11-09 06:36:46,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:36:46,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875905574] [2024-11-09 06:36:46,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875905574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:36:46,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [203523285] [2024-11-09 06:36:46,305 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2024-11-09 06:36:46,305 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:36:46,306 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:36:46,306 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:36:46,306 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:36:49,092 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 50 for LOIs [2024-11-09 06:36:49,101 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:36:49,110 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:36:54,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [203523285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:54,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:36:54,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [8] total 32 [2024-11-09 06:36:54,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078194952] [2024-11-09 06:36:54,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:54,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 06:36:54,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:36:54,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 06:36:54,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1347, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 06:36:54,427 INFO L87 Difference]: Start difference. First operand 936 states and 1201 transitions. Second operand has 26 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 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) [2024-11-09 06:36:59,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:59,132 INFO L93 Difference]: Finished difference Result 954 states and 1219 transitions. [2024-11-09 06:36:59,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 06:36:59,133 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 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 79 [2024-11-09 06:36:59,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:59,135 INFO L225 Difference]: With dead ends: 954 [2024-11-09 06:36:59,135 INFO L226 Difference]: Without dead ends: 951 [2024-11-09 06:36:59,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 126 SyntacticMatches, 39 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1453 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=548, Invalid=2644, Unknown=0, NotChecked=0, Total=3192 [2024-11-09 06:36:59,136 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 348 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:59,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 207 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 06:36:59,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-09 06:36:59,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 912. [2024-11-09 06:36:59,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 852 states have (on average 1.3157276995305165) internal successors, (1121), 886 states have internal predecessors, (1121), 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) [2024-11-09 06:36:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1167 transitions. [2024-11-09 06:36:59,184 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1167 transitions. Word has length 79 [2024-11-09 06:36:59,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:59,184 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1167 transitions. [2024-11-09 06:36:59,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 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) [2024-11-09 06:36:59,184 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1167 transitions. [2024-11-09 06:36:59,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 06:36:59,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:59,185 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] [2024-11-09 06:36:59,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-09 06:36:59,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:36:59,386 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:36:59,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:59,386 INFO L85 PathProgramCache]: Analyzing trace with hash 433172375, now seen corresponding path program 1 times [2024-11-09 06:36:59,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:36:59,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697918075] [2024-11-09 06:36:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:59,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:36:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:59,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:36:59,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697918075] [2024-11-09 06:36:59,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697918075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:36:59,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403401193] [2024-11-09 06:36:59,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:59,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:36:59,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:36:59,477 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:36:59,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 06:36:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:59,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:36:59,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:59,617 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:36:59,725 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:36:59,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403401193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:36:59,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [478336753] [2024-11-09 06:36:59,727 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 06:36:59,727 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:36:59,727 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:36:59,727 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:36:59,727 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:37:03,257 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 06:37:03,310 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:37:03,319 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:37:07,812 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37381#(and (<= (* 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| 2) (<= |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_~Y~0#1| 2))' at error location [2024-11-09 06:37:07,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:37:07,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:37:07,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 06:37:07,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042012220] [2024-11-09 06:37:07,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:37:07,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:37:07,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:37:07,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:37:07,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=943, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 06:37:07,814 INFO L87 Difference]: Start difference. First operand 912 states and 1167 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) [2024-11-09 06:37:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:08,055 INFO L93 Difference]: Finished difference Result 1131 states and 1377 transitions. [2024-11-09 06:37:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:37:08,056 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 [2024-11-09 06:37:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:08,059 INFO L225 Difference]: With dead ends: 1131 [2024-11-09 06:37:08,059 INFO L226 Difference]: Without dead ends: 1130 [2024-11-09 06:37:08,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 169 SyntacticMatches, 40 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1263 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=113, Invalid=943, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 06:37:08,060 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 395 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:08,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 744 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:37:08,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2024-11-09 06:37:08,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 965. [2024-11-09 06:37:08,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 904 states have (on average 1.3174778761061947) internal successors, (1191), 938 states have internal predecessors, (1191), 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) [2024-11-09 06:37:08,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1239 transitions. [2024-11-09 06:37:08,113 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1239 transitions. Word has length 79 [2024-11-09 06:37:08,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:08,113 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1239 transitions. [2024-11-09 06:37:08,113 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) [2024-11-09 06:37:08,113 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1239 transitions. [2024-11-09 06:37:08,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:37:08,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:08,114 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] [2024-11-09 06:37:08,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-09 06:37:08,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:08,315 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:37:08,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:08,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1008150588, now seen corresponding path program 1 times [2024-11-09 06:37:08,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:37:08,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429313260] [2024-11-09 06:37:08,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:08,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:08,535 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:37:08,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:37:08,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429313260] [2024-11-09 06:37:08,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429313260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:37:08,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880573017] [2024-11-09 06:37:08,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:08,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:08,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:37:08,536 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:37:08,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 06:37:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:08,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:37:08,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:37:08,724 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:37:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:37:08,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880573017] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:37:08,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1044521601] [2024-11-09 06:37:08,920 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:37:08,920 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:37:08,921 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:37:08,921 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:37:08,921 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:37:13,620 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:37:13,670 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:37:13,685 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:37:21,416 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40092#(and (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (exists ((|v_ULTIMATE.start_main_~x~0#1_128| Int) (|v_ULTIMATE.start_main_~Y~0#1_88| Int)) (and (<= |v_ULTIMATE.start_main_~x~0#1_128| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~Y~0#1_88| 13835058055282163713)) (<= 0 (+ |v_ULTIMATE.start_main_~x~0#1_128| 9223372036854775808)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_128| |v_ULTIMATE.start_main_~Y~0#1_88|)))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-09 06:37:21,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:37:21,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:37:21,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-09 06:37:21,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648327295] [2024-11-09 06:37:21,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:37:21,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:37:21,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:37:21,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:37:21,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=2887, Unknown=0, NotChecked=0, Total=3192 [2024-11-09 06:37:21,420 INFO L87 Difference]: Start difference. First operand 965 states and 1239 transitions. Second operand has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-09 06:37:21,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:21,941 INFO L93 Difference]: Finished difference Result 1173 states and 1500 transitions. [2024-11-09 06:37:21,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:37:21,941 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 81 [2024-11-09 06:37:21,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:21,943 INFO L225 Difference]: With dead ends: 1173 [2024-11-09 06:37:21,943 INFO L226 Difference]: Without dead ends: 794 [2024-11-09 06:37:21,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 190 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=354, Invalid=3428, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 06:37:21,946 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 351 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:21,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 298 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:37:21,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-09 06:37:22,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 705. [2024-11-09 06:37:22,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 651 states have (on average 1.3287250384024578) internal successors, (865), 685 states have internal predecessors, (865), 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) [2024-11-09 06:37:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 899 transitions. [2024-11-09 06:37:22,009 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 899 transitions. Word has length 81 [2024-11-09 06:37:22,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:22,010 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 899 transitions. [2024-11-09 06:37:22,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-09 06:37:22,010 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 899 transitions. [2024-11-09 06:37:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:37:22,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:22,011 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] [2024-11-09 06:37:22,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 06:37:22,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:22,211 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:37:22,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:22,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1275430944, now seen corresponding path program 2 times [2024-11-09 06:37:22,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:37:22,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533279110] [2024-11-09 06:37:22,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:22,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:37:22,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438996090] [2024-11-09 06:37:22,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:37:22,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:22,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:37:22,234 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:37:22,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 06:37:22,298 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 06:37:22,298 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:37:22,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:37:22,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:22,979 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 06:37:22,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:37:23,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:37:23,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533279110] [2024-11-09 06:37:23,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:37:23,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438996090] [2024-11-09 06:37:23,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438996090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:37:23,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [240001065] [2024-11-09 06:37:23,621 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:37:23,621 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:37:23,621 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:37:23,621 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:37:23,621 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:37:28,057 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:37:28,091 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:37:28,100 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:37:36,973 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42408#(and (exists ((|v_ULTIMATE.start_main_~x~0#1_135| Int) (|v_ULTIMATE.start_main_~Y~0#1_89| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_135| |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_135| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~x~0#1_135| 9223372036854775807))) (<= 0 (+ 9223372036854775809 |ULTIMATE.start_main_~X~0#1|)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location [2024-11-09 06:37:36,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:37:36,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:37:36,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 06:37:36,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960946775] [2024-11-09 06:37:36,973 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:37:36,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:37:36,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:37:36,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:37:36,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=2690, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 06:37:36,975 INFO L87 Difference]: Start difference. First operand 705 states and 899 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) [2024-11-09 06:37:37,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:37,298 INFO L93 Difference]: Finished difference Result 705 states and 899 transitions. [2024-11-09 06:37:37,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:37:37,298 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 [2024-11-09 06:37:37,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:37,301 INFO L225 Difference]: With dead ends: 705 [2024-11-09 06:37:37,301 INFO L226 Difference]: Without dead ends: 703 [2024-11-09 06:37:37,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 119 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=305, Invalid=3001, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 06:37:37,303 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 [2024-11-09 06:37:37,303 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] [2024-11-09 06:37:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2024-11-09 06:37:37,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 642. [2024-11-09 06:37:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 591 states have (on average 1.3062605752961083) internal successors, (772), 623 states have internal predecessors, (772), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 06:37:37,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 804 transitions. [2024-11-09 06:37:37,346 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 804 transitions. Word has length 81 [2024-11-09 06:37:37,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:37,346 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 804 transitions. [2024-11-09 06:37:37,346 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) [2024-11-09 06:37:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 804 transitions. [2024-11-09 06:37:37,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 06:37:37,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:37,348 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] [2024-11-09 06:37:37,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-09 06:37:37,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-09 06:37:37,549 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:37:37,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2016298437, now seen corresponding path program 1 times [2024-11-09 06:37:37,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:37:37,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339836448] [2024-11-09 06:37:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:37:37,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:37:37,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339836448] [2024-11-09 06:37:37,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339836448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:37:37,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419684591] [2024-11-09 06:37:37,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:37,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:37,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:37:37,650 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:37:37,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 06:37:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:37,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:37:37,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:37:37,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:37:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:37:38,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419684591] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:37:38,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:37:38,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-11-09 06:37:38,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042345741] [2024-11-09 06:37:38,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:38,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:37:38,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:37:38,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:37:38,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:37:38,078 INFO L87 Difference]: Start difference. First operand 642 states and 804 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) [2024-11-09 06:37:38,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:38,432 INFO L93 Difference]: Finished difference Result 644 states and 805 transitions. [2024-11-09 06:37:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:37:38,433 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 [2024-11-09 06:37:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:38,434 INFO L225 Difference]: With dead ends: 644 [2024-11-09 06:37:38,434 INFO L226 Difference]: Without dead ends: 643 [2024-11-09 06:37:38,435 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 [2024-11-09 06:37:38,435 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 73 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:38,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 182 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:37:38,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-09 06:37:38,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 642. [2024-11-09 06:37:38,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 591 states have (on average 1.3045685279187818) internal successors, (771), 623 states have internal predecessors, (771), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 06:37:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 803 transitions. [2024-11-09 06:37:38,466 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 803 transitions. Word has length 82 [2024-11-09 06:37:38,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:38,466 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 803 transitions. [2024-11-09 06:37:38,466 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) [2024-11-09 06:37:38,466 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 803 transitions. [2024-11-09 06:37:38,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:37:38,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:38,467 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] [2024-11-09 06:37:38,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-09 06:37:38,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:38,667 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:37:38,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:38,668 INFO L85 PathProgramCache]: Analyzing trace with hash -632542179, now seen corresponding path program 1 times [2024-11-09 06:37:38,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:37:38,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010664904] [2024-11-09 06:37:38,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:38,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:37:38,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:37:38,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010664904] [2024-11-09 06:37:38,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010664904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:37:38,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457870675] [2024-11-09 06:37:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:38,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:38,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:37:38,858 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:37:38,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 06:37:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:38,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:37:38,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:39,475 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 06:37:39,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:37:39,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457870675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:39,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:37:39,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2024-11-09 06:37:39,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486816] [2024-11-09 06:37:39,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:39,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:37:39,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:37:39,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:37:39,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:37:39,479 INFO L87 Difference]: Start difference. First operand 642 states and 803 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) [2024-11-09 06:37:40,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:40,435 INFO L93 Difference]: Finished difference Result 649 states and 808 transitions. [2024-11-09 06:37:40,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:37:40,435 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 [2024-11-09 06:37:40,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:40,438 INFO L225 Difference]: With dead ends: 649 [2024-11-09 06:37:40,438 INFO L226 Difference]: Without dead ends: 592 [2024-11-09 06:37:40,439 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 [2024-11-09 06:37:40,439 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 130 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:40,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 207 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:37:40,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-09 06:37:40,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2024-11-09 06:37:40,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 542 states have (on average 1.3265682656826567) internal successors, (719), 574 states have internal predecessors, (719), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 06:37:40,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 749 transitions. [2024-11-09 06:37:40,486 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 749 transitions. Word has length 84 [2024-11-09 06:37:40,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:40,486 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 749 transitions. [2024-11-09 06:37:40,486 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) [2024-11-09 06:37:40,486 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 749 transitions. [2024-11-09 06:37:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:37:40,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:40,488 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] [2024-11-09 06:37:40,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-09 06:37:40,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:40,692 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:37:40,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:40,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1212471675, now seen corresponding path program 1 times [2024-11-09 06:37:40,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:37:40,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028871396] [2024-11-09 06:37:40,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:40,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:37:40,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106592838] [2024-11-09 06:37:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:40,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:40,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:37:40,719 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:37:40,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 06:37:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:40,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:37:40,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:41,265 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:37:41,265 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:37:41,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:37:41,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028871396] [2024-11-09 06:37:41,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:37:41,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106592838] [2024-11-09 06:37:41,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106592838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:37:41,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1022919288] [2024-11-09 06:37:41,494 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:37:41,494 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:37:41,495 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:37:41,495 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:37:41,495 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:37:45,975 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:37:46,007 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:37:46,016 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:37:54,034 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '47617#(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 [2024-11-09 06:37:54,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:37:54,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:37:54,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 06:37:54,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821069442] [2024-11-09 06:37:54,035 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:37:54,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:37:54,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:37:54,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:37:54,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=3136, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 06:37:54,036 INFO L87 Difference]: Start difference. First operand 592 states and 749 transitions. Second operand has 11 states, 10 states have (on average 7.4) internal successors, (74), 11 states have internal predecessors, (74), 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) [2024-11-09 06:37:55,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:55,217 INFO L93 Difference]: Finished difference Result 735 states and 925 transitions. [2024-11-09 06:37:55,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:37:55,218 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 11 states have internal predecessors, (74), 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 [2024-11-09 06:37:55,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:55,220 INFO L225 Difference]: With dead ends: 735 [2024-11-09 06:37:55,220 INFO L226 Difference]: Without dead ends: 733 [2024-11-09 06:37:55,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 124 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1402 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=347, Invalid=3943, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 06:37:55,224 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 200 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:55,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 547 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:37:55,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-09 06:37:55,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 674. [2024-11-09 06:37:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 622 states have (on average 1.337620578778135) internal successors, (832), 654 states have internal predecessors, (832), 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) [2024-11-09 06:37:55,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 866 transitions. [2024-11-09 06:37:55,278 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 866 transitions. Word has length 84 [2024-11-09 06:37:55,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:55,278 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 866 transitions. [2024-11-09 06:37:55,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.4) internal successors, (74), 11 states have internal predecessors, (74), 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) [2024-11-09 06:37:55,279 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 866 transitions. [2024-11-09 06:37:55,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 06:37:55,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:55,279 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] [2024-11-09 06:37:55,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 06:37:55,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-09 06:37:55,484 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)] === [2024-11-09 06:37:55,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:55,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1068083676, now seen corresponding path program 1 times [2024-11-09 06:37:55,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:37:55,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083454087] [2024-11-09 06:37:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:55,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:37:55,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027745008] [2024-11-09 06:37:55,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:55,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:55,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:37:55,511 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:37:55,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 06:37:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:55,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 06:37:55,578 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:56,805 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:37:56,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:38:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:38:01,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:01,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083454087] [2024-11-09 06:38:01,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:38:01,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027745008] [2024-11-09 06:38:01,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027745008] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:38:01,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2085225585] [2024-11-09 06:38:01,360 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:38:01,360 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:38:01,361 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:38:01,361 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:38:01,361 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:38:05,952 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:38:05,985 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:38:05,994 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:38:18,445 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49691#(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 [2024-11-09 06:38:18,445 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:38:18,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:38:18,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2024-11-09 06:38:18,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559551173] [2024-11-09 06:38:18,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:38:18,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 06:38:18,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:18,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 06:38:18,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=398, Invalid=5004, Unknown=0, NotChecked=0, Total=5402 [2024-11-09 06:38:18,446 INFO L87 Difference]: Start difference. First operand 674 states and 866 transitions. Second operand has 32 states, 29 states have (on average 5.137931034482759) internal successors, (149), 32 states have internal predecessors, (149), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 06:38:30,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:44,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:46,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:51,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:58,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 06:39:01,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:01,144 INFO L93 Difference]: Finished difference Result 888 states and 1129 transitions. [2024-11-09 06:39:01,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-09 06:39:01,144 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 5.137931034482759) internal successors, (149), 32 states have internal predecessors, (149), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 85 [2024-11-09 06:39:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:01,147 INFO L225 Difference]: With dead ends: 888 [2024-11-09 06:39:01,147 INFO L226 Difference]: Without dead ends: 887 [2024-11-09 06:39:01,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 179 SyntacticMatches, 2 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4649 ImplicationChecksByTransitivity, 38.4s TimeCoverageRelationStatistics Valid=1380, Invalid=12657, Unknown=5, NotChecked=0, Total=14042 [2024-11-09 06:39:01,150 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 1495 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 2853 mSolverCounterSat, 87 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 2942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2853 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:01,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 453 Invalid, 2942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2853 Invalid, 2 Unknown, 0 Unchecked, 19.5s Time] [2024-11-09 06:39:01,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-09 06:39:01,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 713. [2024-11-09 06:39:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 661 states have (on average 1.319213313161876) internal successors, (872), 693 states have internal predecessors, (872), 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) [2024-11-09 06:39:01,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 906 transitions. [2024-11-09 06:39:01,205 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 906 transitions. Word has length 85 [2024-11-09 06:39:01,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:01,206 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 906 transitions. [2024-11-09 06:39:01,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 5.137931034482759) internal successors, (149), 32 states have internal predecessors, (149), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-09 06:39:01,206 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 906 transitions. [2024-11-09 06:39:01,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:39:01,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:01,207 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] [2024-11-09 06:39:01,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-09 06:39:01,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-09 06:39:01,407 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)] === [2024-11-09 06:39:01,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:01,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1530647113, now seen corresponding path program 1 times [2024-11-09 06:39:01,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:01,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699973211] [2024-11-09 06:39:01,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:01,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:39:01,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222175188] [2024-11-09 06:39:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:01,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:01,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:01,425 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:39:01,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 06:39:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:01,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:39:01,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:03,080 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:39:03,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:09,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:09,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699973211] [2024-11-09 06:39:09,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:39:09,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222175188] [2024-11-09 06:39:09,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222175188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:39:09,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1863696413] [2024-11-09 06:39:09,713 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2024-11-09 06:39:09,713 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:39:09,713 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:39:09,714 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:39:09,714 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:39:12,494 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 50 for LOIs [2024-11-09 06:39:12,504 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:39:12,519 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:39:34,799 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '51946#(exists ((|v_ULTIMATE.start_main_~X~0#1_81| Int) (|v_ULTIMATE.start_main_~Y~0#1_95| Int) (|v_ULTIMATE.start_main_~yx~0#1_156| Int) (|v_ULTIMATE.start_main_~x~0#1_162| Int)) (and (<= 0 |v_ULTIMATE.start_main_~X~0#1_81|) (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= |v_ULTIMATE.start_main_~Y~0#1_95| 2) (<= (+ |v_ULTIMATE.start_main_~X~0#1_81| 1) |v_ULTIMATE.start_main_~x~0#1_162|) (<= (* |v_ULTIMATE.start_main_~x~0#1_162| |v_ULTIMATE.start_main_~Y~0#1_95|) 4611686018427387903) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_156|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_81| 9223372036854775808 (* (* |v_ULTIMATE.start_main_~x~0#1_162| |ULTIMATE.start_main_~y~0#1|) 2)) (+ (* 2 (* |v_ULTIMATE.start_main_~x~0#1_162| |v_ULTIMATE.start_main_~Y~0#1_95|)) (* 2 |v_ULTIMATE.start_main_~Y~0#1_95|)))))' at error location [2024-11-09 06:39:34,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:39:34,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:39:34,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-09 06:39:34,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829860155] [2024-11-09 06:39:34,800 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:39:34,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:39:34,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:39:34,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=2383, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 06:39:34,801 INFO L87 Difference]: Start difference. First operand 713 states and 906 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) [2024-11-09 06:39:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:36,223 INFO L93 Difference]: Finished difference Result 736 states and 931 transitions. [2024-11-09 06:39:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:39:36,224 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 [2024-11-09 06:39:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:36,226 INFO L225 Difference]: With dead ends: 736 [2024-11-09 06:39:36,226 INFO L226 Difference]: Without dead ends: 735 [2024-11-09 06:39:36,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 129 SyntacticMatches, 45 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2155 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=333, Invalid=2747, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 06:39:36,227 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 170 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:36,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 316 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:39:36,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-09 06:39:36,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 729. [2024-11-09 06:39:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 677 states have (on average 1.3116691285081241) internal successors, (888), 709 states have internal predecessors, (888), 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) [2024-11-09 06:39:36,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 922 transitions. [2024-11-09 06:39:36,286 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 922 transitions. Word has length 86 [2024-11-09 06:39:36,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:36,286 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 922 transitions. [2024-11-09 06:39:36,286 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) [2024-11-09 06:39:36,286 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 922 transitions. [2024-11-09 06:39:36,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 06:39:36,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:36,287 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] [2024-11-09 06:39:36,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-09 06:39:36,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-09 06:39:36,492 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:39:36,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:36,492 INFO L85 PathProgramCache]: Analyzing trace with hash 2073065643, now seen corresponding path program 1 times [2024-11-09 06:39:36,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:36,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936719049] [2024-11-09 06:39:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:36,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:39:36,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:36,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936719049] [2024-11-09 06:39:36,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936719049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:39:36,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786748293] [2024-11-09 06:39:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:36,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:39:36,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:39:36,695 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:39:36,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 06:39:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:36,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:39:36,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:39:37,186 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:39:37,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:39:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:39:37,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786748293] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:39:37,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [235897006] [2024-11-09 06:39:37,511 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-09 06:39:37,511 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:39:37,511 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:39:37,512 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:39:37,512 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:39:40,474 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 50 for LOIs [2024-11-09 06:39:40,482 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:39:40,491 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:40:22,274 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '54067#(exists ((|v_ULTIMATE.start_main_~v~0#1_183| Int) (|v_ULTIMATE.start_main_~X~0#1_82| Int) (|v_ULTIMATE.start_main_~Y~0#1_96| Int) (|v_ULTIMATE.start_main_~yx~0#1_164| Int) (|v_ULTIMATE.start_main_~x~0#1_170| Int)) (and (<= |v_ULTIMATE.start_main_~X~0#1_82| 2) (<= 1 |#StackHeapBarrier|) (<= (* |v_ULTIMATE.start_main_~x~0#1_170| |v_ULTIMATE.start_main_~Y~0#1_96|) 4611686018427387903) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_164|) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= (* |v_ULTIMATE.start_main_~x~0#1_170| |ULTIMATE.start_main_~y~0#1|) 4611686018427387903) (<= |v_ULTIMATE.start_main_~Y~0#1_96| 2) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_96|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_82| |v_ULTIMATE.start_main_~v~0#1_183| 9223372036854775808 (* 2 (* |v_ULTIMATE.start_main_~x~0#1_170| |ULTIMATE.start_main_~y~0#1|))) (+ (* (* |v_ULTIMATE.start_main_~x~0#1_170| |v_ULTIMATE.start_main_~Y~0#1_96|) 2) (* 2 |v_ULTIMATE.start_main_~Y~0#1_96|))) (<= 0 |v_ULTIMATE.start_main_~X~0#1_82|) (<= (+ |v_ULTIMATE.start_main_~X~0#1_82| 1) |v_ULTIMATE.start_main_~x~0#1_170|) (<= (+ (* (* |v_ULTIMATE.start_main_~x~0#1_170| |v_ULTIMATE.start_main_~Y~0#1_96|) 2) (* 2 |v_ULTIMATE.start_main_~Y~0#1_96|)) (+ |v_ULTIMATE.start_main_~X~0#1_82| 9223372036854775807 (* 2 (* |v_ULTIMATE.start_main_~x~0#1_170| |ULTIMATE.start_main_~y~0#1|))))))' at error location [2024-11-09 06:40:22,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:40:22,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:40:22,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-11-09 06:40:22,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097009499] [2024-11-09 06:40:22,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:40:22,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:40:22,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:40:22,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:40:22,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=2246, Unknown=5, NotChecked=0, Total=2450 [2024-11-09 06:40:22,276 INFO L87 Difference]: Start difference. First operand 729 states and 922 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) [2024-11-09 06:40:23,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:23,622 INFO L93 Difference]: Finished difference Result 746 states and 943 transitions. [2024-11-09 06:40:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 06:40:23,623 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 [2024-11-09 06:40:23,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:23,626 INFO L225 Difference]: With dead ends: 746 [2024-11-09 06:40:23,626 INFO L226 Difference]: Without dead ends: 745 [2024-11-09 06:40:23,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 177 SyntacticMatches, 45 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2679 ImplicationChecksByTransitivity, 42.4s TimeCoverageRelationStatistics Valid=347, Invalid=3308, Unknown=5, NotChecked=0, Total=3660 [2024-11-09 06:40:23,628 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 205 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:23,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 558 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:40:23,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-11-09 06:40:23,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 735. [2024-11-09 06:40:23,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 683 states have (on average 1.3103953147877012) internal successors, (895), 715 states have internal predecessors, (895), 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) [2024-11-09 06:40:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 929 transitions. [2024-11-09 06:40:23,667 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 929 transitions. Word has length 88 [2024-11-09 06:40:23,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:23,668 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 929 transitions. [2024-11-09 06:40:23,668 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) [2024-11-09 06:40:23,668 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 929 transitions. [2024-11-09 06:40:23,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 06:40:23,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:23,669 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] [2024-11-09 06:40:23,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-09 06:40:23,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-09 06:40:23,870 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:40:23,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash 2131968959, now seen corresponding path program 1 times [2024-11-09 06:40:23,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:40:23,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006541603] [2024-11-09 06:40:23,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:23,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:40:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:40:23,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1444161923] [2024-11-09 06:40:23,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:23,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:40:23,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:40:23,892 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:40:23,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 06:40:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:23,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:40:23,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 1 proven. 46 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:40:27,757 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:40:29,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:40:29,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006541603] [2024-11-09 06:40:29,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:40:29,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444161923] [2024-11-09 06:40:29,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444161923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:40:29,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [761945498] [2024-11-09 06:40:29,131 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:40:29,131 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:40:29,131 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:40:29,131 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:40:29,131 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:40:33,261 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:40:33,298 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:40:33,313 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:40:45,296 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '56021#(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 [2024-11-09 06:40:45,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:40:45,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:40:45,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-09 06:40:45,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962301259] [2024-11-09 06:40:45,296 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:40:45,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:40:45,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:40:45,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:40:45,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=4099, Unknown=1, NotChecked=0, Total=4422 [2024-11-09 06:40:45,298 INFO L87 Difference]: Start difference. First operand 735 states and 929 transitions. Second operand has 18 states, 15 states have (on average 5.333333333333333) internal successors, (80), 18 states have internal predecessors, (80), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:40:47,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:40:49,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:40:52,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:40:55,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:40:59,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:02,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:05,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:08,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:11,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:14,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:16,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:18,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:20,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:25,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:27,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:29,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:32,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:34,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:36,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:38,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:41,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:43,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:45,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:47,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:49,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:51,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:53,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:57,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:41:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:41:57,939 INFO L93 Difference]: Finished difference Result 747 states and 936 transitions. [2024-11-09 06:41:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 06:41:57,939 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 5.333333333333333) internal successors, (80), 18 states have internal predecessors, (80), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 88 [2024-11-09 06:41:57,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:41:57,941 INFO L225 Difference]: With dead ends: 747 [2024-11-09 06:41:57,941 INFO L226 Difference]: Without dead ends: 744 [2024-11-09 06:41:57,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2170 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=515, Invalid=5804, Unknown=1, NotChecked=0, Total=6320 [2024-11-09 06:41:57,942 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 268 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 10 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:41:57,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 456 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1714 Invalid, 27 Unknown, 0 Unchecked, 69.0s Time] [2024-11-09 06:41:57,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-09 06:41:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 735. [2024-11-09 06:41:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 683 states have (on average 1.2972181551976574) internal successors, (886), 715 states have internal predecessors, (886), 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) [2024-11-09 06:41:57,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 920 transitions. [2024-11-09 06:41:57,988 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 920 transitions. Word has length 88 [2024-11-09 06:41:57,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:41:57,988 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 920 transitions. [2024-11-09 06:41:57,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 5.333333333333333) internal successors, (80), 18 states have internal predecessors, (80), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:41:57,988 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 920 transitions. [2024-11-09 06:41:57,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 06:41:57,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:57,989 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] [2024-11-09 06:41:58,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-09 06:41:58,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-09 06:41:58,189 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:41:58,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:58,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1666528360, now seen corresponding path program 1 times [2024-11-09 06:41:58,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:41:58,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143156693] [2024-11-09 06:41:58,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:58,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:41:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:41:58,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418113434] [2024-11-09 06:41:58,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:58,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:41:58,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:41:58,210 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:41:58,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 06:41:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:58,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:41:58,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:42:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:42:13,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:42:18,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:42:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143156693] [2024-11-09 06:42:18,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:42:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418113434] [2024-11-09 06:42:18,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418113434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:42:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [773751904] [2024-11-09 06:42:18,606 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:42:18,606 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:42:18,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:42:18,607 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:42:18,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:42:23,396 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:42:23,438 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:42:23,449 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:42:41,716 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '58106#(and (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387904)) (exists ((|v_ULTIMATE.start_main_~yx~0#1_178| Int)) (and (<= |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_178|) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |v_ULTIMATE.start_main_~yx~0#1_178|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 13835058055282163713)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)) (<= |v_ULTIMATE.start_main_~yx~0#1_178| 4611686018427387903))))' at error location [2024-11-09 06:42:41,716 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:42:41,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:42:41,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-09 06:42:41,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383783384] [2024-11-09 06:42:41,716 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:42:41,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:42:41,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:42:41,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:42:41,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=4217, Unknown=2, NotChecked=0, Total=4556 [2024-11-09 06:42:41,718 INFO L87 Difference]: Start difference. First operand 735 states and 920 transitions. Second operand has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 14 states have internal predecessors, (80), 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) [2024-11-09 06:42:43,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:42:47,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:42:52,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:42:54,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:42:55,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:02,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:04,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:10,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:12,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:14,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:16,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:19,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:23,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:26,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:29,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:32,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:35,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:37,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:39,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:41,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:43,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:45,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:48,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:51,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:53,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:55,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:43:58,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:00,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:08,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:10,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:12,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:14,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:17,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:19,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:21,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:23,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:26,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:29,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:32,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:35,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:37,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:39,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:42,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:44,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:46,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:48,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:50,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:52,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:55,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:57,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:44:59,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:01,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:04,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:06,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:09,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:11,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:13,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:15,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:17,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:20,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:22,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:24,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:26,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:29,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:31,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:33,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:36,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:38,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:40,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:42,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:44,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:46,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:49,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:51,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:53,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:55,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:45:58,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:00,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:02,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:04,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:07,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:09,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:11,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:13,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:16,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:18,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 06:46:18,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:18,750 INFO L93 Difference]: Finished difference Result 753 states and 934 transitions. [2024-11-09 06:46:18,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 06:46:18,751 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 14 states have internal predecessors, (80), 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 89 [2024-11-09 06:46:18,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:18,753 INFO L225 Difference]: With dead ends: 753 [2024-11-09 06:46:18,753 INFO L226 Difference]: Without dead ends: 751 [2024-11-09 06:46:18,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 43.4s TimeCoverageRelationStatistics Valid=439, Invalid=5257, Unknown=4, NotChecked=0, Total=5700 [2024-11-09 06:46:18,755 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 200 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 7 mSolverCounterUnsat, 76 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 195.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 76 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 200.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:18,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 509 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1487 Invalid, 76 Unknown, 0 Unchecked, 200.8s Time] [2024-11-09 06:46:18,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-09 06:46:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 735. [2024-11-09 06:46:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 683 states have (on average 1.2884333821376281) internal successors, (880), 715 states have internal predecessors, (880), 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) [2024-11-09 06:46:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 914 transitions. [2024-11-09 06:46:18,824 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 914 transitions. Word has length 89 [2024-11-09 06:46:18,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:18,825 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 914 transitions. [2024-11-09 06:46:18,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.666666666666667) internal successors, (80), 14 states have internal predecessors, (80), 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) [2024-11-09 06:46:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 914 transitions. [2024-11-09 06:46:18,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 06:46:18,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:18,826 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] [2024-11-09 06:46:18,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-09 06:46:19,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-09 06:46:19,027 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:46:19,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1363989312, now seen corresponding path program 1 times [2024-11-09 06:46:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:19,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153457416] [2024-11-09 06:46:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:19,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:19,167 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:46:19,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:19,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153457416] [2024-11-09 06:46:19,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153457416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:19,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443140786] [2024-11-09 06:46:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:19,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:19,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:19,169 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:19,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-09 06:46:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:19,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:46:19,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:46:19,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:46:19,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443140786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:46:19,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:46:19,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-09 06:46:19,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120116080] [2024-11-09 06:46:19,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:46:19,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:46:19,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:19,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:46:19,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:46:19,473 INFO L87 Difference]: Start difference. First operand 735 states and 914 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) [2024-11-09 06:46:19,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:19,869 INFO L93 Difference]: Finished difference Result 735 states and 914 transitions. [2024-11-09 06:46:19,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:46:19,870 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 [2024-11-09 06:46:19,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:19,872 INFO L225 Difference]: With dead ends: 735 [2024-11-09 06:46:19,872 INFO L226 Difference]: Without dead ends: 732 [2024-11-09 06:46:19,873 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 [2024-11-09 06:46:19,873 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 63 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:19,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 223 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:46:19,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-09 06:46:19,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2024-11-09 06:46:19,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 683 states have (on average 1.273792093704246) internal successors, (870), 712 states have internal predecessors, (870), 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) [2024-11-09 06:46:19,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 904 transitions. [2024-11-09 06:46:19,959 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 904 transitions. Word has length 91 [2024-11-09 06:46:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:19,960 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 904 transitions. [2024-11-09 06:46:19,960 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) [2024-11-09 06:46:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 904 transitions. [2024-11-09 06:46:19,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 06:46:19,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:19,961 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] [2024-11-09 06:46:19,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-09 06:46:20,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-09 06:46:20,161 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:46:20,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:20,162 INFO L85 PathProgramCache]: Analyzing trace with hash -666004113, now seen corresponding path program 1 times [2024-11-09 06:46:20,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:20,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747089329] [2024-11-09 06:46:20,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:20,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:46:20,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678274978] [2024-11-09 06:46:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:20,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:20,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:20,179 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:20,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-09 06:46:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:20,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:46:20,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:46:21,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:46:22,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:22,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747089329] [2024-11-09 06:46:22,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:46:22,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678274978] [2024-11-09 06:46:22,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678274978] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:46:22,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [444529061] [2024-11-09 06:46:22,370 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 06:46:22,370 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:46:22,370 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:46:22,370 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:46:22,370 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:46:25,315 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 50 for LOIs [2024-11-09 06:46:25,322 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:46:25,332 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:46:44,702 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '62124#(exists ((|v_ULTIMATE.start_main_~yx~0#1_187| Int) (|v_ULTIMATE.start_main_~x~0#1_193| Int) (|v_ULTIMATE.start_main_~X~0#1_89| Int) (|v_ULTIMATE.start_main_~v~0#1_217| Int) (|v_ULTIMATE.start_main_~y~0#1_154| Int) (|v_ULTIMATE.start_main_~Y~0#1_103| Int)) (and (<= (+ |v_ULTIMATE.start_main_~X~0#1_89| 1) |v_ULTIMATE.start_main_~x~0#1_193|) (<= (* |v_ULTIMATE.start_main_~y~0#1_154| |v_ULTIMATE.start_main_~x~0#1_193|) 4611686018427387903) (<= 1 |#StackHeapBarrier|) (<= (+ (* (* |v_ULTIMATE.start_main_~y~0#1_154| |v_ULTIMATE.start_main_~x~0#1_193|) 2) |v_ULTIMATE.start_main_~X~0#1_89| |v_ULTIMATE.start_main_~v~0#1_217| 9223372036854775808) (+ (* (* |v_ULTIMATE.start_main_~x~0#1_193| |v_ULTIMATE.start_main_~Y~0#1_103|) 2) (* 2 |v_ULTIMATE.start_main_~Y~0#1_103|) (* |v_ULTIMATE.start_main_~y~0#1_154| 2))) (<= (* |v_ULTIMATE.start_main_~x~0#1_193| |v_ULTIMATE.start_main_~Y~0#1_103|) 4611686018427387903) (<= 0 |v_ULTIMATE.start_main_~yx~0#1_187|) (<= 0 |v_ULTIMATE.start_main_~Y~0#1_103|) (<= (+ (* (* |v_ULTIMATE.start_main_~x~0#1_193| |v_ULTIMATE.start_main_~Y~0#1_103|) 2) (* 2 |v_ULTIMATE.start_main_~Y~0#1_103|)) (+ (* (* |v_ULTIMATE.start_main_~y~0#1_154| |v_ULTIMATE.start_main_~x~0#1_193|) 2) |v_ULTIMATE.start_main_~X~0#1_89| |v_ULTIMATE.start_main_~v~0#1_217| 9223372036854775807)) (<= 0 |v_ULTIMATE.start_main_~X~0#1_89|) (<= |v_ULTIMATE.start_main_~X~0#1_89| 2) (<= |v_ULTIMATE.start_main_~Y~0#1_103| 2)))' at error location [2024-11-09 06:46:44,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:46:44,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:46:44,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-11-09 06:46:44,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865037188] [2024-11-09 06:46:44,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 06:46:44,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:46:44,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:46:44,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:46:44,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=2316, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 06:46:44,704 INFO L87 Difference]: Start difference. First operand 732 states and 904 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) [2024-11-09 06:46:48,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:48,551 INFO L93 Difference]: Finished difference Result 755 states and 930 transitions. [2024-11-09 06:46:48,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 06:46:48,552 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 [2024-11-09 06:46:48,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:48,554 INFO L225 Difference]: With dead ends: 755 [2024-11-09 06:46:48,554 INFO L226 Difference]: Without dead ends: 726 [2024-11-09 06:46:48,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 177 SyntacticMatches, 48 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2325 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=370, Invalid=3412, Unknown=0, NotChecked=0, Total=3782 [2024-11-09 06:46:48,555 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 245 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:48,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 353 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 06:46:48,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-09 06:46:48,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 724. [2024-11-09 06:46:48,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 675 states have (on average 1.2814814814814814) internal successors, (865), 704 states have internal predecessors, (865), 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) [2024-11-09 06:46:48,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 899 transitions. [2024-11-09 06:46:48,627 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 899 transitions. Word has length 92 [2024-11-09 06:46:48,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:48,628 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 899 transitions. [2024-11-09 06:46:48,628 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) [2024-11-09 06:46:48,628 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 899 transitions. [2024-11-09 06:46:48,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 06:46:48,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:48,629 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] [2024-11-09 06:46:48,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-09 06:46:48,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:48,830 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:46:48,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:48,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1845681714, now seen corresponding path program 1 times [2024-11-09 06:46:48,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:48,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613593019] [2024-11-09 06:46:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:48,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:49,185 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:46:49,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:46:49,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613593019] [2024-11-09 06:46:49,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613593019] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:46:49,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956974006] [2024-11-09 06:46:49,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:49,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:49,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:49,188 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:49,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-09 06:46:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:49,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:46:49,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:50,585 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:46:50,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:46:51,418 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 35 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 06:46:51,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956974006] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:46:51,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1255749920] [2024-11-09 06:46:51,420 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:46:51,420 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:46:51,420 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:46:51,420 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:46:51,420 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:46:56,791 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:46:56,826 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:46:56,836 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:47:10,143 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '64312#(exists ((|v_ULTIMATE.start_main_~X~0#1_92| Int) (|v_ULTIMATE.start_main_~xy~0#1_194| Int) (|v_ULTIMATE.start_main_~yx~0#1_194| Int) (|v_ULTIMATE.start_main_~Y~0#1_105| Int)) (and (<= |v_ULTIMATE.start_main_~yx~0#1_194| 4611686018427387903) (<= 0 (+ |v_ULTIMATE.start_main_~yx~0#1_194| 4611686018427387904)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= (+ |v_ULTIMATE.start_main_~X~0#1_92| 9223372036854775808 (* 2 |v_ULTIMATE.start_main_~xy~0#1_194|)) (+ (* 2 |v_ULTIMATE.start_main_~yx~0#1_194|) (* 2 |v_ULTIMATE.start_main_~Y~0#1_105|))) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~X~0#1_92| 9223372036854775809)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= |v_ULTIMATE.start_main_~Y~0#1_105| 4611686018427387903) (<= (* 2 |v_ULTIMATE.start_main_~yx~0#1_194|) (+ |v_ULTIMATE.start_main_~X~0#1_92| 9223372036854775807 (* 2 |v_ULTIMATE.start_main_~xy~0#1_194|))) (<= 0 (+ |v_ULTIMATE.start_main_~xy~0#1_194| 4611686018427387904)) (<= |v_ULTIMATE.start_main_~xy~0#1_194| 4611686018427387903) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|))))' at error location [2024-11-09 06:47:10,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:47:10,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:47:10,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-11-09 06:47:10,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866360789] [2024-11-09 06:47:10,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:47:10,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:47:10,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:47:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:47:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=3215, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 06:47:10,146 INFO L87 Difference]: Start difference. First operand 724 states and 899 transitions. Second operand has 17 states, 15 states have (on average 16.4) internal successors, (246), 17 states have internal predecessors, (246), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-09 06:47:12,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:12,085 INFO L93 Difference]: Finished difference Result 928 states and 1178 transitions. [2024-11-09 06:47:12,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:47:12,086 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 16.4) internal successors, (246), 17 states have internal predecessors, (246), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 95 [2024-11-09 06:47:12,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:12,089 INFO L225 Difference]: With dead ends: 928 [2024-11-09 06:47:12,090 INFO L226 Difference]: Without dead ends: 924 [2024-11-09 06:47:12,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 230 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1642 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=434, Invalid=4122, Unknown=0, NotChecked=0, Total=4556 [2024-11-09 06:47:12,091 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 466 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:12,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 451 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:47:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-11-09 06:47:12,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 721. [2024-11-09 06:47:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 675 states have (on average 1.2444444444444445) internal successors, (840), 701 states have internal predecessors, (840), 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) [2024-11-09 06:47:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 874 transitions. [2024-11-09 06:47:12,154 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 874 transitions. Word has length 95 [2024-11-09 06:47:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:12,154 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 874 transitions. [2024-11-09 06:47:12,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 16.4) internal successors, (246), 17 states have internal predecessors, (246), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-09 06:47:12,155 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 874 transitions. [2024-11-09 06:47:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 06:47:12,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:12,156 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:47:12,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-09 06:47:12,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:12,360 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:47:12,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash 121368816, now seen corresponding path program 1 times [2024-11-09 06:47:12,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:47:12,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651212616] [2024-11-09 06:47:12,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:12,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:47:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:47:12,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:47:12,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651212616] [2024-11-09 06:47:12,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651212616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:12,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937958795] [2024-11-09 06:47:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:12,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:12,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:47:12,550 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:47:12,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-09 06:47:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:12,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:47:12,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:13,429 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:47:13,429 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:47:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:47:13,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937958795] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:47:13,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [264740851] [2024-11-09 06:47:13,979 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:47:13,979 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:47:13,979 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:47:13,979 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:47:13,979 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:47:19,863 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:47:19,901 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:47:19,911 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:47:32,596 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '66701#(exists ((|v_ULTIMATE.start_main_~X~0#1_93| Int) (|v_ULTIMATE.start_main_~Y~0#1_106| Int) (|v_ULTIMATE.start_main_~v~0#1_243| Int) (|v_ULTIMATE.start_main_~xy~0#1_200| Int) (|v_ULTIMATE.start_main_~yx~0#1_200| Int)) (and (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_106|) (* 2 |v_ULTIMATE.start_main_~yx~0#1_200|)) (+ |v_ULTIMATE.start_main_~X~0#1_93| 9223372036854775807 (* 2 |v_ULTIMATE.start_main_~xy~0#1_200|))) (<= 0 (+ |v_ULTIMATE.start_main_~v~0#1_243| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~yx~0#1_200| 4611686018427387903) (<= (+ |v_ULTIMATE.start_main_~X~0#1_93| |v_ULTIMATE.start_main_~v~0#1_243| (* 2 |v_ULTIMATE.start_main_~xy~0#1_200|) 9223372036854775808) (+ (* 2 |v_ULTIMATE.start_main_~Y~0#1_106|) (* 2 |v_ULTIMATE.start_main_~yx~0#1_200|))) (<= 0 (+ |v_ULTIMATE.start_main_~xy~0#1_200| 4611686018427387904)) (<= 0 (+ |v_ULTIMATE.start_main_~X~0#1_93| 9223372036854775809)) (<= |v_ULTIMATE.start_main_~Y~0#1_106| 4611686018427387903) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~x~0#1|)) (<= 0 (+ |v_ULTIMATE.start_main_~yx~0#1_200| 4611686018427387904)) (<= |v_ULTIMATE.start_main_~xy~0#1_200| 4611686018427387903) (<= (* 2 |v_ULTIMATE.start_main_~yx~0#1_200|) (+ |v_ULTIMATE.start_main_~X~0#1_93| 9223372036854775807 (* 2 |v_ULTIMATE.start_main_~xy~0#1_200|)))))' at error location [2024-11-09 06:47:32,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:47:32,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:47:32,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-09 06:47:32,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274265333] [2024-11-09 06:47:32,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:47:32,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:47:32,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:47:32,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:47:32,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=3011, Unknown=0, NotChecked=0, Total=3306 [2024-11-09 06:47:32,598 INFO L87 Difference]: Start difference. First operand 721 states and 874 transitions. Second operand has 15 states, 14 states have (on average 16.0) internal successors, (224), 15 states have internal predecessors, (224), 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) [2024-11-09 06:47:34,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:34,813 INFO L93 Difference]: Finished difference Result 1147 states and 1436 transitions. [2024-11-09 06:47:34,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:47:34,813 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 16.0) internal successors, (224), 15 states have internal predecessors, (224), 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 97 [2024-11-09 06:47:34,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:34,816 INFO L225 Difference]: With dead ends: 1147 [2024-11-09 06:47:34,816 INFO L226 Difference]: Without dead ends: 745 [2024-11-09 06:47:34,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 237 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1444 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=380, Invalid=4042, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 06:47:34,817 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 232 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:34,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 484 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 06:47:34,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2024-11-09 06:47:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 694. [2024-11-09 06:47:34,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 647 states have (on average 1.2797527047913446) internal successors, (828), 672 states have internal predecessors, (828), 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) [2024-11-09 06:47:34,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 866 transitions. [2024-11-09 06:47:34,857 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 866 transitions. Word has length 97 [2024-11-09 06:47:34,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:34,857 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 866 transitions. [2024-11-09 06:47:34,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 16.0) internal successors, (224), 15 states have internal predecessors, (224), 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) [2024-11-09 06:47:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 866 transitions. [2024-11-09 06:47:34,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 06:47:34,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:34,858 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 06:47:34,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-09 06:47:35,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-09 06:47:35,058 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:47:35,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:35,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1978993113, now seen corresponding path program 1 times [2024-11-09 06:47:35,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:47:35,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547240243] [2024-11-09 06:47:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:35,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:47:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:47:35,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:47:35,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547240243] [2024-11-09 06:47:35,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547240243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:35,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133207277] [2024-11-09 06:47:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:35,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:35,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:47:35,687 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:47:35,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-09 06:47:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:35,754 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:47:35,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:37,020 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:47:37,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:47:38,272 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:47:38,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133207277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:47:38,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1621384369] [2024-11-09 06:47:38,274 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2024-11-09 06:47:38,274 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:47:38,274 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:47:38,275 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:47:38,275 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:47:42,369 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 52 for LOIs [2024-11-09 06:47:42,377 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:47:42,389 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:47:44,396 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~y~0#1_172| Int) (|v_ULTIMATE.start_main_~x~0#1_216| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~y~0#1_172| |v_ULTIMATE.start_main_~x~0#1_216|)) 0) (<= (+ |c_ULTIMATE.start_main_~X~0#1| 1) |v_ULTIMATE.start_main_~x~0#1_216|))) is different from true [2024-11-09 06:47:56,282 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '69334#(exists ((|v_ULTIMATE.start_main_~y~0#1_172| Int) (|v_ULTIMATE.start_main_~x~0#1_216| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~y~0#1_172| |v_ULTIMATE.start_main_~x~0#1_216|)) 0) (<= (+ |ULTIMATE.start_main_~X~0#1| 1) |v_ULTIMATE.start_main_~x~0#1_216|)))' at error location [2024-11-09 06:47:56,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:47:56,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:47:56,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 26 [2024-11-09 06:47:56,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005195938] [2024-11-09 06:47:56,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:47:56,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 06:47:56,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:47:56,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 06:47:56,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=4262, Unknown=1, NotChecked=132, Total=4692 [2024-11-09 06:47:56,286 INFO L87 Difference]: Start difference. First operand 694 states and 866 transitions. Second operand has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 26 states have internal predecessors, (250), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-09 06:48:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:00,951 INFO L93 Difference]: Finished difference Result 699 states and 866 transitions. [2024-11-09 06:48:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:48:00,952 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 26 states have internal predecessors, (250), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) Word has length 102 [2024-11-09 06:48:00,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:00,955 INFO L225 Difference]: With dead ends: 699 [2024-11-09 06:48:00,955 INFO L226 Difference]: Without dead ends: 683 [2024-11-09 06:48:00,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2156 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=452, Invalid=6523, Unknown=1, NotChecked=164, Total=7140 [2024-11-09 06:48:00,957 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 112 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:00,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 839 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 06:48:00,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-09 06:48:01,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 683. [2024-11-09 06:48:01,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 636 states have (on average 1.2767295597484276) internal successors, (812), 661 states have internal predecessors, (812), 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) [2024-11-09 06:48:01,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 850 transitions. [2024-11-09 06:48:01,009 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 850 transitions. Word has length 102 [2024-11-09 06:48:01,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:01,009 INFO L471 AbstractCegarLoop]: Abstraction has 683 states and 850 transitions. [2024-11-09 06:48:01,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.615384615384615) internal successors, (250), 26 states have internal predecessors, (250), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-09 06:48:01,009 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 850 transitions. [2024-11-09 06:48:01,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 06:48:01,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:01,011 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 06:48:01,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-09 06:48:01,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-09 06:48:01,212 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:48:01,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:01,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1163669890, now seen corresponding path program 1 times [2024-11-09 06:48:01,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:48:01,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654211015] [2024-11-09 06:48:01,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:01,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:48:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:48:01,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031315669] [2024-11-09 06:48:01,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:01,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:48:01,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:48:01,250 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:48:01,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-09 06:48:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:01,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:48:01,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:02,501 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 28 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:48:02,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:03,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:48:03,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654211015] [2024-11-09 06:48:03,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:48:03,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031315669] [2024-11-09 06:48:03,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031315669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:48:03,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1803010329] [2024-11-09 06:48:03,065 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:48:03,066 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:48:03,066 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:48:03,066 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:48:03,066 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:48:08,087 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:48:08,125 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:48:08,137 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:48:23,199 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71289#(exists ((|v_ULTIMATE.start_main_~X~0#1_94| Int) (|v_ULTIMATE.start_main_~y~0#1_181| Int)) (and (<= (+ (* |v_ULTIMATE.start_main_~y~0#1_181| |v_ULTIMATE.start_main_~X~0#1_94|) 9223372036854775809) 0) (<= 0 (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775808)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~X~0#1_94| 9223372036854775809)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~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|)) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|)))' at error location [2024-11-09 06:48:23,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:48:23,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:48:23,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 06:48:23,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003326534] [2024-11-09 06:48:23,200 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 06:48:23,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:48:23,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:48:23,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:48:23,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=3145, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 06:48:23,201 INFO L87 Difference]: Start difference. First operand 683 states and 850 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 06:48:25,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:25,507 INFO L93 Difference]: Finished difference Result 821 states and 1011 transitions. [2024-11-09 06:48:25,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 06:48:25,508 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 117 [2024-11-09 06:48:25,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:25,510 INFO L225 Difference]: With dead ends: 821 [2024-11-09 06:48:25,511 INFO L226 Difference]: Without dead ends: 819 [2024-11-09 06:48:25,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 191 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1412 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=342, Invalid=3948, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 06:48:25,515 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 140 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:25,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1045 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 06:48:25,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-09 06:48:25,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 704. [2024-11-09 06:48:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 658 states have (on average 1.250759878419453) internal successors, (823), 682 states have internal predecessors, (823), 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) [2024-11-09 06:48:25,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 861 transitions. [2024-11-09 06:48:25,582 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 861 transitions. Word has length 117 [2024-11-09 06:48:25,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:25,582 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 861 transitions. [2024-11-09 06:48:25,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 12 states have internal predecessors, (104), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 06:48:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 861 transitions. [2024-11-09 06:48:25,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 06:48:25,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:25,583 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 06:48:25,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-09 06:48:25,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-09 06:48:25,785 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:48:25,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:25,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1059746650, now seen corresponding path program 2 times [2024-11-09 06:48:25,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:48:25,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276485467] [2024-11-09 06:48:25,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:25,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:48:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:25,852 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-09 06:48:25,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:48:25,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276485467] [2024-11-09 06:48:25,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276485467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:48:25,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:48:25,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:48:25,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825717085] [2024-11-09 06:48:25,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:48:25,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:48:25,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:48:25,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:48:25,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:48:25,855 INFO L87 Difference]: Start difference. First operand 704 states and 861 transitions. Second operand has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-09 06:48:26,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:26,173 INFO L93 Difference]: Finished difference Result 704 states and 861 transitions. [2024-11-09 06:48:26,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:48:26,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 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 117 [2024-11-09 06:48:26,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:26,176 INFO L225 Difference]: With dead ends: 704 [2024-11-09 06:48:26,176 INFO L226 Difference]: Without dead ends: 703 [2024-11-09 06:48:26,177 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 [2024-11-09 06:48:26,177 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 38 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:26,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 73 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:48:26,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2024-11-09 06:48:26,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 681. [2024-11-09 06:48:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 636 states have (on average 1.2547169811320755) internal successors, (798), 659 states have internal predecessors, (798), 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) [2024-11-09 06:48:26,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 836 transitions. [2024-11-09 06:48:26,228 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 836 transitions. Word has length 117 [2024-11-09 06:48:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:26,229 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 836 transitions. [2024-11-09 06:48:26,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-09 06:48:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 836 transitions. [2024-11-09 06:48:26,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 06:48:26,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:26,229 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 06:48:26,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-09 06:48:26,230 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:48:26,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:26,230 INFO L85 PathProgramCache]: Analyzing trace with hash 509283388, now seen corresponding path program 2 times [2024-11-09 06:48:26,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:48:26,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55707320] [2024-11-09 06:48:26,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:26,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:48:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:26,630 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 06:48:26,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:48:26,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55707320] [2024-11-09 06:48:26,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55707320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:48:26,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:48:26,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:48:26,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460410115] [2024-11-09 06:48:26,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:48:26,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:48:26,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:48:26,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:48:26,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:48:26,633 INFO L87 Difference]: Start difference. First operand 681 states and 836 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 06:48:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:27,591 INFO L93 Difference]: Finished difference Result 751 states and 895 transitions. [2024-11-09 06:48:27,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:48:27,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 119 [2024-11-09 06:48:27,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:27,593 INFO L225 Difference]: With dead ends: 751 [2024-11-09 06:48:27,593 INFO L226 Difference]: Without dead ends: 508 [2024-11-09 06:48:27,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:48:27,594 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 193 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:27,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 222 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:48:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-09 06:48:27,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 502. [2024-11-09 06:48:27,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 463 states have (on average 1.207343412526998) internal successors, (559), 485 states have internal predecessors, (559), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 06:48:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 587 transitions. [2024-11-09 06:48:27,653 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 587 transitions. Word has length 119 [2024-11-09 06:48:27,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:27,654 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 587 transitions. [2024-11-09 06:48:27,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 06:48:27,654 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 587 transitions. [2024-11-09 06:48:27,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 06:48:27,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:27,655 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 06:48:27,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-09 06:48:27,655 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-09 06:48:27,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:27,656 INFO L85 PathProgramCache]: Analyzing trace with hash 253238850, now seen corresponding path program 1 times [2024-11-09 06:48:27,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:48:27,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288307052] [2024-11-09 06:48:27,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:27,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:48:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:48:27,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466040371] [2024-11-09 06:48:27,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:27,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:48:27,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:48:27,684 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:48:27,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_137620d8-034f-4b13-bd26-733cd746dfaa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-09 06:48:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:27,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:48:27,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 67 proven. 40 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:48:28,874 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:29,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:48:29,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288307052] [2024-11-09 06:48:29,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 06:48:29,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466040371] [2024-11-09 06:48:29,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466040371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:48:29,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1090773790] [2024-11-09 06:48:29,408 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 06:48:29,408 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:48:29,408 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:48:29,409 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:48:29,409 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:48:33,963 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 112 for LOIs [2024-11-09 06:48:34,027 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 68 for LOIs [2024-11-09 06:48:34,043 INFO L180 IcfgInterpreter]: Interpretation finished