./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a340dc1e9a375ad2082e9c8cecf3a1a681edcfe0f7220085504fa1991ced3d70 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:10:22,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:10:22,115 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:10:22,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:10:22,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:10:22,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:10:22,152 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:10:22,152 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:10:22,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:10:22,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:10:22,153 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:10:22,153 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:10:22,155 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:10:22,155 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:10:22,155 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:10:22,157 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:10:22,157 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:10:22,157 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:10:22,157 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:10:22,158 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:10:22,158 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:10:22,158 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:10:22,158 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:10:22,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:10:22,158 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:10:22,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:10:22,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:10:22,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:10:22,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:10:22,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:10:22,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:10:22,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:10:22,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:10:22,160 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:10:22,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:10:22,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:10:22,162 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:10:22,162 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:10:22,162 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a340dc1e9a375ad2082e9c8cecf3a1a681edcfe0f7220085504fa1991ced3d70 [2024-11-14 05:10:22,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:10:22,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:10:22,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:10:22,495 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:10:22,496 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:10:22,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound10.c Unable to find full path for "g++" [2024-11-14 05:10:24,405 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:10:24,625 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:10:24,626 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_unwindbound10.c [2024-11-14 05:10:24,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/data/e5ad1726a/87a04890cb144390925c1925bfa85726/FLAG8bb42529d [2024-11-14 05:10:24,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/data/e5ad1726a/87a04890cb144390925c1925bfa85726 [2024-11-14 05:10:24,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:10:24,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:10:24,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:10:24,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:10:24,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:10:24,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:10:24" (1/1) ... [2024-11-14 05:10:24,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebcc56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:24, skipping insertion in model container [2024-11-14 05:10:24,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:10:24" (1/1) ... [2024-11-14 05:10:25,007 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:10:25,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:10:25,218 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:10:25,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:10:25,247 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:10:25,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25 WrapperNode [2024-11-14 05:10:25,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:10:25,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:10:25,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:10:25,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:10:25,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,282 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2024-11-14 05:10:25,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:10:25,286 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:10:25,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:10:25,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:10:25,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:10:25,307 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:10:25,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:10:25,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:10:25,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (1/1) ... [2024-11-14 05:10:25,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:10:25,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:25,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:10:25,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:10:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:10:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:10:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:10:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:10:25,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:10:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:10:25,474 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:10:25,476 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:10:25,892 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-14 05:10:25,892 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:10:25,942 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:10:25,942 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 05:10:25,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:10:25 BoogieIcfgContainer [2024-11-14 05:10:25,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:10:25,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:10:25,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:10:25,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:10:25,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:10:24" (1/3) ... [2024-11-14 05:10:25,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678487f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:10:25, skipping insertion in model container [2024-11-14 05:10:25,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:10:25" (2/3) ... [2024-11-14 05:10:25,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678487f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:10:25, skipping insertion in model container [2024-11-14 05:10:25,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:10:25" (3/3) ... [2024-11-14 05:10:25,953 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_unwindbound10.c [2024-11-14 05:10:25,969 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:10:25,971 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cohendiv-ll_unwindbound10.c that has 2 procedures, 86 locations, 1 initial locations, 2 loop locations, and 34 error locations. [2024-11-14 05:10:26,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:10:26,038 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;@1e77f29d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:10:26,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-14 05:10:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 43 states have (on average 1.930232558139535) internal successors, (83), 77 states have internal predecessors, (83), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 05:10:26,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 05:10:26,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:26,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 05:10:26,052 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:26,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:26,057 INFO L85 PathProgramCache]: Analyzing trace with hash 186048, now seen corresponding path program 1 times [2024-11-14 05:10:26,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:26,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582015341] [2024-11-14 05:10:26,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:26,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:26,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:10:26,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:26,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582015341] [2024-11-14 05:10:26,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582015341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:26,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:26,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:10:26,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690262751] [2024-11-14 05:10:26,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:26,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:10:26,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:26,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:10:26,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:10:26,226 INFO L87 Difference]: Start difference. First operand has 86 states, 43 states have (on average 1.930232558139535) internal successors, (83), 77 states have internal predecessors, (83), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:26,259 INFO L93 Difference]: Finished difference Result 171 states and 193 transitions. [2024-11-14 05:10:26,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:10:26,261 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 05:10:26,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:26,267 INFO L225 Difference]: With dead ends: 171 [2024-11-14 05:10:26,268 INFO L226 Difference]: Without dead ends: 83 [2024-11-14 05:10:26,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:10:26,274 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:26,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:10:26,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-14 05:10:26,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-14 05:10:26,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 42 states have (on average 1.880952380952381) internal successors, (79), 75 states have internal predecessors, (79), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:10:26,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2024-11-14 05:10:26,327 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 3 [2024-11-14 05:10:26,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:26,327 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2024-11-14 05:10:26,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:26,328 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2024-11-14 05:10:26,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 05:10:26,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:26,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 05:10:26,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:10:26,329 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:26,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:26,329 INFO L85 PathProgramCache]: Analyzing trace with hash 183007, now seen corresponding path program 1 times [2024-11-14 05:10:26,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:26,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468876509] [2024-11-14 05:10:26,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:26,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:10:26,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:26,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468876509] [2024-11-14 05:10:26,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468876509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:26,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:26,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:10:26,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291541368] [2024-11-14 05:10:26,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:26,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:10:26,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:26,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:10:26,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:26,432 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:26,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:26,517 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2024-11-14 05:10:26,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:26,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 05:10:26,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:26,520 INFO L225 Difference]: With dead ends: 97 [2024-11-14 05:10:26,520 INFO L226 Difference]: Without dead ends: 87 [2024-11-14 05:10:26,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:10:26,523 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 4 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:26,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 251 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:10:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-14 05:10:26,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-14 05:10:26,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 46 states have (on average 1.8043478260869565) internal successors, (83), 79 states have internal predecessors, (83), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:10:26,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2024-11-14 05:10:26,533 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 3 [2024-11-14 05:10:26,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:26,533 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2024-11-14 05:10:26,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2024-11-14 05:10:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 05:10:26,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:26,534 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 05:10:26,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:10:26,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:26,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:26,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1157041074, now seen corresponding path program 1 times [2024-11-14 05:10:26,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:26,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935088929] [2024-11-14 05:10:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:26,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:10:26,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [984970196] [2024-11-14 05:10:26,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:26,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:26,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:26,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:26,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:10:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:26,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:10:26,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:10:26,658 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:26,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:26,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935088929] [2024-11-14 05:10:26,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:10:26,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984970196] [2024-11-14 05:10:26,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984970196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:26,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:26,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:10:26,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161847393] [2024-11-14 05:10:26,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:26,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:10:26,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:26,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:10:26,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:26,664 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:26,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:26,827 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2024-11-14 05:10:26,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:10:26,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 05:10:26,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:26,829 INFO L225 Difference]: With dead ends: 110 [2024-11-14 05:10:26,829 INFO L226 Difference]: Without dead ends: 108 [2024-11-14 05:10:26,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:26,830 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 18 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:26,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 155 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:26,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-14 05:10:26,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 89. [2024-11-14 05:10:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 48 states have (on average 1.7708333333333333) internal successors, (85), 81 states have internal predecessors, (85), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:10:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2024-11-14 05:10:26,842 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 6 [2024-11-14 05:10:26,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:26,842 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2024-11-14 05:10:26,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:10:26,843 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2024-11-14 05:10:26,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:10:26,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:26,843 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:26,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:10:27,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:27,044 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:27,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:27,045 INFO L85 PathProgramCache]: Analyzing trace with hash 903440272, now seen corresponding path program 1 times [2024-11-14 05:10:27,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:27,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995760349] [2024-11-14 05:10:27,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:27,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:10:27,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23889365] [2024-11-14 05:10:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:27,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:27,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:27,080 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:27,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:10:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:27,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:10:27,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:10:27,172 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:27,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:27,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995760349] [2024-11-14 05:10:27,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:10:27,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23889365] [2024-11-14 05:10:27,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23889365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:27,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:27,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:10:27,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235681301] [2024-11-14 05:10:27,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:27,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:10:27,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:27,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:10:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:27,175 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:10:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:27,425 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2024-11-14 05:10:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:10:27,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-14 05:10:27,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:27,431 INFO L225 Difference]: With dead ends: 151 [2024-11-14 05:10:27,431 INFO L226 Difference]: Without dead ends: 145 [2024-11-14 05:10:27,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:27,432 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 51 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:27,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 130 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:10:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-14 05:10:27,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 123. [2024-11-14 05:10:27,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 76 states have (on average 1.763157894736842) internal successors, (134), 109 states have internal predecessors, (134), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:10:27,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 158 transitions. [2024-11-14 05:10:27,459 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 158 transitions. Word has length 11 [2024-11-14 05:10:27,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:27,460 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 158 transitions. [2024-11-14 05:10:27,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:10:27,460 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 158 transitions. [2024-11-14 05:10:27,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:10:27,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:27,461 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:27,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:10:27,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:27,665 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:27,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:27,665 INFO L85 PathProgramCache]: Analyzing trace with hash 622709554, now seen corresponding path program 1 times [2024-11-14 05:10:27,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:27,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323650802] [2024-11-14 05:10:27,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:27,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:10:27,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970886173] [2024-11-14 05:10:27,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:27,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:27,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:27,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:27,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:10:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:27,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:10:27,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:27,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:10:27,871 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:27,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:27,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323650802] [2024-11-14 05:10:27,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:10:27,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970886173] [2024-11-14 05:10:27,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970886173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:27,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:27,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:10:27,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023394675] [2024-11-14 05:10:27,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:27,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:10:27,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:27,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:10:27,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:27,873 INFO L87 Difference]: Start difference. First operand 123 states and 158 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:10:28,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:28,058 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2024-11-14 05:10:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:10:28,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-14 05:10:28,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:28,060 INFO L225 Difference]: With dead ends: 144 [2024-11-14 05:10:28,060 INFO L226 Difference]: Without dead ends: 141 [2024-11-14 05:10:28,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:28,061 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 45 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:28,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 121 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:10:28,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-14 05:10:28,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 124. [2024-11-14 05:10:28,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 77 states have (on average 1.7272727272727273) internal successors, (133), 110 states have internal predecessors, (133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:10:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 157 transitions. [2024-11-14 05:10:28,078 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 157 transitions. Word has length 13 [2024-11-14 05:10:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:28,078 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 157 transitions. [2024-11-14 05:10:28,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:10:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 157 transitions. [2024-11-14 05:10:28,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:10:28,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:28,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:28,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:10:28,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:28,283 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:28,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:28,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2124127055, now seen corresponding path program 1 times [2024-11-14 05:10:28,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:28,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319407926] [2024-11-14 05:10:28,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:28,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:10:28,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643574348] [2024-11-14 05:10:28,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:28,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:28,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:28,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:28,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:10:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:28,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:10:28,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:10:28,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:28,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:28,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319407926] [2024-11-14 05:10:28,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:10:28,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643574348] [2024-11-14 05:10:28,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643574348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:28,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:28,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:10:28,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013019481] [2024-11-14 05:10:28,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:28,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:10:28,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:28,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:10:28,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:28,462 INFO L87 Difference]: Start difference. First operand 124 states and 157 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:10:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:28,740 INFO L93 Difference]: Finished difference Result 144 states and 162 transitions. [2024-11-14 05:10:28,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:10:28,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-11-14 05:10:28,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:28,742 INFO L225 Difference]: With dead ends: 144 [2024-11-14 05:10:28,742 INFO L226 Difference]: Without dead ends: 137 [2024-11-14 05:10:28,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:28,743 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 44 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:28,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 124 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:10:28,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-14 05:10:28,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 121. [2024-11-14 05:10:28,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 74 states have (on average 1.7162162162162162) internal successors, (127), 107 states have internal predecessors, (127), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:10:28,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 151 transitions. [2024-11-14 05:10:28,764 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 151 transitions. Word has length 14 [2024-11-14 05:10:28,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:28,768 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 151 transitions. [2024-11-14 05:10:28,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-14 05:10:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 151 transitions. [2024-11-14 05:10:28,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 05:10:28,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:28,769 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:28,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:10:28,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:10:28,970 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:28,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:28,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1093961277, now seen corresponding path program 1 times [2024-11-14 05:10:28,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:28,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218336412] [2024-11-14 05:10:28,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:28,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:29,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:29,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:29,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218336412] [2024-11-14 05:10:29,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218336412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:29,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:29,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:10:29,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009860216] [2024-11-14 05:10:29,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:29,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:29,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:29,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:29,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:10:29,124 INFO L87 Difference]: Start difference. First operand 121 states and 151 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:29,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:29,261 INFO L93 Difference]: Finished difference Result 150 states and 165 transitions. [2024-11-14 05:10:29,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:10:29,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-14 05:10:29,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:29,264 INFO L225 Difference]: With dead ends: 150 [2024-11-14 05:10:29,264 INFO L226 Difference]: Without dead ends: 149 [2024-11-14 05:10:29,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:10:29,266 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 62 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:29,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 453 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:29,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-14 05:10:29,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2024-11-14 05:10:29,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 75 states have (on average 1.6933333333333334) internal successors, (127), 108 states have internal predecessors, (127), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:10:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2024-11-14 05:10:29,289 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 20 [2024-11-14 05:10:29,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:29,289 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2024-11-14 05:10:29,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2024-11-14 05:10:29,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 05:10:29,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:29,291 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:29,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:10:29,291 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:29,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:29,292 INFO L85 PathProgramCache]: Analyzing trace with hash 446938860, now seen corresponding path program 1 times [2024-11-14 05:10:29,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:29,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600798214] [2024-11-14 05:10:29,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:29,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:29,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:29,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:29,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600798214] [2024-11-14 05:10:29,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600798214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:29,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:29,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:10:29,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385611825] [2024-11-14 05:10:29,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:29,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:29,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:29,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:29,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:10:29,434 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:29,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:29,586 INFO L93 Difference]: Finished difference Result 211 states and 248 transitions. [2024-11-14 05:10:29,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:10:29,591 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-14 05:10:29,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:29,593 INFO L225 Difference]: With dead ends: 211 [2024-11-14 05:10:29,593 INFO L226 Difference]: Without dead ends: 129 [2024-11-14 05:10:29,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:10:29,597 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 9 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:29,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 328 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:29,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-14 05:10:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-14 05:10:29,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 80 states have (on average 1.65) internal successors, (132), 113 states have internal predecessors, (132), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 05:10:29,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions. [2024-11-14 05:10:29,653 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 21 [2024-11-14 05:10:29,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:29,653 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 156 transitions. [2024-11-14 05:10:29,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:29,654 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions. [2024-11-14 05:10:29,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 05:10:29,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:29,654 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:29,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:10:29,655 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:29,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:29,655 INFO L85 PathProgramCache]: Analyzing trace with hash 11517550, now seen corresponding path program 1 times [2024-11-14 05:10:29,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:29,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264490892] [2024-11-14 05:10:29,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:29,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:10:29,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [90680846] [2024-11-14 05:10:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:29,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:29,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:29,690 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:29,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:10:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:29,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:10:29,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:29,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:29,819 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:29,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:29,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264490892] [2024-11-14 05:10:29,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:10:29,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90680846] [2024-11-14 05:10:29,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90680846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:29,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:29,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:10:29,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523799106] [2024-11-14 05:10:29,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:29,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:10:29,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:29,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:10:29,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:29,820 INFO L87 Difference]: Start difference. First operand 129 states and 156 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:30,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:30,014 INFO L93 Difference]: Finished difference Result 205 states and 275 transitions. [2024-11-14 05:10:30,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:10:30,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-14 05:10:30,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:30,015 INFO L225 Difference]: With dead ends: 205 [2024-11-14 05:10:30,016 INFO L226 Difference]: Without dead ends: 199 [2024-11-14 05:10:30,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:30,016 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 123 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:30,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 88 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:10:30,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-14 05:10:30,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 179. [2024-11-14 05:10:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 123 states have (on average 1.6178861788617886) internal successors, (199), 155 states have internal predecessors, (199), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 05:10:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2024-11-14 05:10:30,030 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 23 [2024-11-14 05:10:30,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:30,030 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2024-11-14 05:10:30,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:30,030 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2024-11-14 05:10:30,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 05:10:30,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:30,031 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:30,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 05:10:30,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:30,231 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:30,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:30,232 INFO L85 PathProgramCache]: Analyzing trace with hash 357044138, now seen corresponding path program 1 times [2024-11-14 05:10:30,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:30,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633196606] [2024-11-14 05:10:30,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:30,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:10:30,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081457399] [2024-11-14 05:10:30,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:30,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:30,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:30,249 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:30,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:10:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:30,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:10:30,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:10:30,382 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:30,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633196606] [2024-11-14 05:10:30,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:10:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081457399] [2024-11-14 05:10:30,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081457399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:30,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:30,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:10:30,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938725448] [2024-11-14 05:10:30,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:30,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:10:30,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:30,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:10:30,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:30,383 INFO L87 Difference]: Start difference. First operand 179 states and 239 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:30,660 INFO L93 Difference]: Finished difference Result 258 states and 333 transitions. [2024-11-14 05:10:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-11-14 05:10:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:30,663 INFO L225 Difference]: With dead ends: 258 [2024-11-14 05:10:30,663 INFO L226 Difference]: Without dead ends: 255 [2024-11-14 05:10:30,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:10:30,664 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 128 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:30,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 136 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:10:30,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-14 05:10:30,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 216. [2024-11-14 05:10:30,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 155 states have (on average 1.6258064516129032) internal successors, (252), 187 states have internal predecessors, (252), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 05:10:30,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 302 transitions. [2024-11-14 05:10:30,680 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 302 transitions. Word has length 24 [2024-11-14 05:10:30,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:30,681 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 302 transitions. [2024-11-14 05:10:30,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:10:30,681 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 302 transitions. [2024-11-14 05:10:30,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-14 05:10:30,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:30,682 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:30,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:10:30,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:30,882 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:30,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:30,883 INFO L85 PathProgramCache]: Analyzing trace with hash -344715730, now seen corresponding path program 1 times [2024-11-14 05:10:30,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:30,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737774734] [2024-11-14 05:10:30,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:30,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:31,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:31,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737774734] [2024-11-14 05:10:31,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737774734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:31,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:31,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:10:31,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643555281] [2024-11-14 05:10:31,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:31,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:10:31,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:31,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:10:31,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:31,041 INFO L87 Difference]: Start difference. First operand 216 states and 302 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:31,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:31,173 INFO L93 Difference]: Finished difference Result 216 states and 302 transitions. [2024-11-14 05:10:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:31,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2024-11-14 05:10:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:31,175 INFO L225 Difference]: With dead ends: 216 [2024-11-14 05:10:31,175 INFO L226 Difference]: Without dead ends: 214 [2024-11-14 05:10:31,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:10:31,176 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 103 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:31,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 64 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:31,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-14 05:10:31,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-14 05:10:31,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 155 states have (on average 1.5806451612903225) internal successors, (245), 185 states have internal predecessors, (245), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 05:10:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 295 transitions. [2024-11-14 05:10:31,201 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 295 transitions. Word has length 38 [2024-11-14 05:10:31,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:31,201 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 295 transitions. [2024-11-14 05:10:31,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 295 transitions. [2024-11-14 05:10:31,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 05:10:31,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:31,203 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:31,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 05:10:31,205 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:31,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:31,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2096252935, now seen corresponding path program 1 times [2024-11-14 05:10:31,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:31,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881106357] [2024-11-14 05:10:31,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:31,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:31,306 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:31,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:31,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881106357] [2024-11-14 05:10:31,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881106357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:31,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:31,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:10:31,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476703184] [2024-11-14 05:10:31,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:31,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:10:31,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:31,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:10:31,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:31,309 INFO L87 Difference]: Start difference. First operand 214 states and 295 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:31,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:31,518 INFO L93 Difference]: Finished difference Result 254 states and 324 transitions. [2024-11-14 05:10:31,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:31,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2024-11-14 05:10:31,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:31,520 INFO L225 Difference]: With dead ends: 254 [2024-11-14 05:10:31,521 INFO L226 Difference]: Without dead ends: 252 [2024-11-14 05:10:31,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:10:31,522 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 136 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:31,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 78 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:10:31,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-14 05:10:31,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 218. [2024-11-14 05:10:31,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.5471698113207548) internal successors, (246), 189 states have internal predecessors, (246), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 05:10:31,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 296 transitions. [2024-11-14 05:10:31,542 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 296 transitions. Word has length 39 [2024-11-14 05:10:31,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:31,542 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 296 transitions. [2024-11-14 05:10:31,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:31,543 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 296 transitions. [2024-11-14 05:10:31,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-14 05:10:31,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:31,545 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:31,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 05:10:31,545 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:31,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash -159405295, now seen corresponding path program 1 times [2024-11-14 05:10:31,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:31,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446092625] [2024-11-14 05:10:31,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:31,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:31,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:31,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446092625] [2024-11-14 05:10:31,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446092625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:31,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:31,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:10:31,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090457024] [2024-11-14 05:10:31,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:31,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:10:31,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:31,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:10:31,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:31,642 INFO L87 Difference]: Start difference. First operand 218 states and 296 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:31,711 INFO L93 Difference]: Finished difference Result 226 states and 296 transitions. [2024-11-14 05:10:31,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:10:31,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2024-11-14 05:10:31,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:31,714 INFO L225 Difference]: With dead ends: 226 [2024-11-14 05:10:31,714 INFO L226 Difference]: Without dead ends: 225 [2024-11-14 05:10:31,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:10:31,716 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 17 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:31,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 138 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-14 05:10:31,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 218. [2024-11-14 05:10:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.5345911949685536) internal successors, (244), 189 states have internal predecessors, (244), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 05:10:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 294 transitions. [2024-11-14 05:10:31,736 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 294 transitions. Word has length 41 [2024-11-14 05:10:31,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:31,737 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 294 transitions. [2024-11-14 05:10:31,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 294 transitions. [2024-11-14 05:10:31,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 05:10:31,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:31,738 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:31,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 05:10:31,739 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:31,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:31,739 INFO L85 PathProgramCache]: Analyzing trace with hash -646596717, now seen corresponding path program 1 times [2024-11-14 05:10:31,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:31,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676656494] [2024-11-14 05:10:31,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:31,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:31,839 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:31,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:31,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676656494] [2024-11-14 05:10:31,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676656494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:31,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:31,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:10:31,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430021268] [2024-11-14 05:10:31,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:31,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:10:31,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:31,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:10:31,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:31,844 INFO L87 Difference]: Start difference. First operand 218 states and 294 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 05:10:31,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:31,960 INFO L93 Difference]: Finished difference Result 365 states and 507 transitions. [2024-11-14 05:10:31,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:10:31,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-14 05:10:31,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:31,963 INFO L225 Difference]: With dead ends: 365 [2024-11-14 05:10:31,963 INFO L226 Difference]: Without dead ends: 364 [2024-11-14 05:10:31,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:10:31,964 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 43 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:31,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 193 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:31,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-14 05:10:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 331. [2024-11-14 05:10:31,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 257 states have (on average 1.583657587548638) internal successors, (407), 287 states have internal predecessors, (407), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:10:31,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 487 transitions. [2024-11-14 05:10:31,986 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 487 transitions. Word has length 42 [2024-11-14 05:10:31,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:31,987 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 487 transitions. [2024-11-14 05:10:31,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 05:10:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 487 transitions. [2024-11-14 05:10:31,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-14 05:10:31,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:31,988 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:31,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 05:10:31,988 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:31,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:31,988 INFO L85 PathProgramCache]: Analyzing trace with hash -646595435, now seen corresponding path program 1 times [2024-11-14 05:10:31,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:31,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122127723] [2024-11-14 05:10:31,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:31,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:32,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:32,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122127723] [2024-11-14 05:10:32,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122127723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:32,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:32,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:10:32,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743694622] [2024-11-14 05:10:32,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:32,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:10:32,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:32,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:10:32,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:10:32,138 INFO L87 Difference]: Start difference. First operand 331 states and 487 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:32,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:32,795 INFO L93 Difference]: Finished difference Result 368 states and 517 transitions. [2024-11-14 05:10:32,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:10:32,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-14 05:10:32,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:32,799 INFO L225 Difference]: With dead ends: 368 [2024-11-14 05:10:32,799 INFO L226 Difference]: Without dead ends: 367 [2024-11-14 05:10:32,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:10:32,800 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 164 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:32,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 252 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:10:32,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-14 05:10:32,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 331. [2024-11-14 05:10:32,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 257 states have (on average 1.5603112840466926) internal successors, (401), 287 states have internal predecessors, (401), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:10:32,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 481 transitions. [2024-11-14 05:10:32,834 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 481 transitions. Word has length 42 [2024-11-14 05:10:32,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:32,835 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 481 transitions. [2024-11-14 05:10:32,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 481 transitions. [2024-11-14 05:10:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-14 05:10:32,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:32,840 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:32,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 05:10:32,840 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:32,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:32,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1430338387, now seen corresponding path program 1 times [2024-11-14 05:10:32,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:32,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926241482] [2024-11-14 05:10:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:32,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:32,936 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:32,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:32,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926241482] [2024-11-14 05:10:32,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926241482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:32,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:10:32,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:10:32,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280869444] [2024-11-14 05:10:32,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:32,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:10:32,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:32,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:10:32,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:32,938 INFO L87 Difference]: Start difference. First operand 331 states and 481 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:33,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:33,266 INFO L93 Difference]: Finished difference Result 356 states and 502 transitions. [2024-11-14 05:10:33,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:10:33,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-14 05:10:33,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:33,270 INFO L225 Difference]: With dead ends: 356 [2024-11-14 05:10:33,270 INFO L226 Difference]: Without dead ends: 354 [2024-11-14 05:10:33,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:10:33,271 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:33,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 163 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:10:33,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-14 05:10:33,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 335. [2024-11-14 05:10:33,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 261 states have (on average 1.5517241379310345) internal successors, (405), 291 states have internal predecessors, (405), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:10:33,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 485 transitions. [2024-11-14 05:10:33,315 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 485 transitions. Word has length 43 [2024-11-14 05:10:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:33,315 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 485 transitions. [2024-11-14 05:10:33,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:33,315 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 485 transitions. [2024-11-14 05:10:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 05:10:33,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:33,317 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:33,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 05:10:33,318 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:33,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:33,318 INFO L85 PathProgramCache]: Analyzing trace with hash 840475575, now seen corresponding path program 1 times [2024-11-14 05:10:33,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:33,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917741512] [2024-11-14 05:10:33,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:33,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:33,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:33,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917741512] [2024-11-14 05:10:33,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917741512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:33,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768235538] [2024-11-14 05:10:33,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:33,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:33,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:33,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:33,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:10:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:33,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:10:33,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:10:33,709 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:10:33,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768235538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:33,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:10:33,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-14 05:10:33,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033596783] [2024-11-14 05:10:33,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:33,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:33,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:10:33,710 INFO L87 Difference]: Start difference. First operand 335 states and 485 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:33,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:33,799 INFO L93 Difference]: Finished difference Result 335 states and 485 transitions. [2024-11-14 05:10:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:10:33,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-14 05:10:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:33,802 INFO L225 Difference]: With dead ends: 335 [2024-11-14 05:10:33,802 INFO L226 Difference]: Without dead ends: 333 [2024-11-14 05:10:33,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-14 05:10:33,803 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 114 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:33,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 216 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:10:33,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-14 05:10:33,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-14 05:10:33,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 261 states have (on average 1.5057471264367817) internal successors, (393), 289 states have internal predecessors, (393), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:10:33,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 473 transitions. [2024-11-14 05:10:33,836 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 473 transitions. Word has length 46 [2024-11-14 05:10:33,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:33,836 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 473 transitions. [2024-11-14 05:10:33,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:33,837 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 473 transitions. [2024-11-14 05:10:33,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 05:10:33,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:33,838 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:33,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 05:10:34,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 05:10:34,043 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:34,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:34,043 INFO L85 PathProgramCache]: Analyzing trace with hash 284939096, now seen corresponding path program 1 times [2024-11-14 05:10:34,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:34,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386531548] [2024-11-14 05:10:34,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:34,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:34,203 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:34,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:34,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386531548] [2024-11-14 05:10:34,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386531548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:34,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845237768] [2024-11-14 05:10:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:34,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:34,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:34,206 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:34,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:10:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:34,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:10:34,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:34,387 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:10:34,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:34,568 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:34,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845237768] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:34,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:10:34,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 6] total 18 [2024-11-14 05:10:34,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831480425] [2024-11-14 05:10:34,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:34,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:10:34,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:34,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:10:34,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-14 05:10:34,570 INFO L87 Difference]: Start difference. First operand 333 states and 473 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:34,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:34,760 INFO L93 Difference]: Finished difference Result 368 states and 495 transitions. [2024-11-14 05:10:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 05:10:34,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-11-14 05:10:34,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:34,763 INFO L225 Difference]: With dead ends: 368 [2024-11-14 05:10:34,763 INFO L226 Difference]: Without dead ends: 366 [2024-11-14 05:10:34,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2024-11-14 05:10:34,764 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 57 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:34,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 421 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:10:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-14 05:10:34,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 339. [2024-11-14 05:10:34,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 264 states have (on average 1.4696969696969697) internal successors, (388), 292 states have internal predecessors, (388), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 05:10:34,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 468 transitions. [2024-11-14 05:10:34,799 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 468 transitions. Word has length 47 [2024-11-14 05:10:34,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:34,799 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 468 transitions. [2024-11-14 05:10:34,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 468 transitions. [2024-11-14 05:10:34,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 05:10:34,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:34,801 INFO L215 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:34,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-14 05:10:35,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 05:10:35,005 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:35,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:35,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1051433997, now seen corresponding path program 1 times [2024-11-14 05:10:35,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:35,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433312499] [2024-11-14 05:10:35,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:35,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:35,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:35,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433312499] [2024-11-14 05:10:35,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433312499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:35,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763044285] [2024-11-14 05:10:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:35,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:35,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:35,166 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:35,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:10:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:35,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:10:35,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:35,329 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-14 05:10:35,329 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:10:35,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763044285] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:10:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [293214704] [2024-11-14 05:10:35,500 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-14 05:10:35,500 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:10:35,503 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:10:35,508 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:10:35,509 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:42,944 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 05:10:42,948 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:10:47,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [293214704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:47,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:47,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [9, 7, 8] total 29 [2024-11-14 05:10:47,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692424941] [2024-11-14 05:10:47,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:47,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:10:47,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:47,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:10:47,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=651, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:10:47,253 INFO L87 Difference]: Start difference. First operand 339 states and 468 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:48,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:48,369 INFO L93 Difference]: Finished difference Result 476 states and 629 transitions. [2024-11-14 05:10:48,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 05:10:48,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-11-14 05:10:48,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:48,371 INFO L225 Difference]: With dead ends: 476 [2024-11-14 05:10:48,372 INFO L226 Difference]: Without dead ends: 320 [2024-11-14 05:10:48,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 106 SyntacticMatches, 21 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=182, Invalid=748, Unknown=0, NotChecked=0, Total=930 [2024-11-14 05:10:48,375 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 30 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:48,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 133 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 05:10:48,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-14 05:10:48,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 303. [2024-11-14 05:10:48,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 230 states have (on average 1.4130434782608696) internal successors, (325), 259 states have internal predecessors, (325), 36 states have call successors, (36), 8 states have call predecessors, (36), 8 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-14 05:10:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 397 transitions. [2024-11-14 05:10:48,405 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 397 transitions. Word has length 49 [2024-11-14 05:10:48,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:48,405 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 397 transitions. [2024-11-14 05:10:48,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:10:48,406 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 397 transitions. [2024-11-14 05:10:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 05:10:48,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:48,407 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:10:48,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 05:10:48,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:48,608 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:10:48,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:48,608 INFO L85 PathProgramCache]: Analyzing trace with hash -789173253, now seen corresponding path program 1 times [2024-11-14 05:10:48,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:48,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827569204] [2024-11-14 05:10:48,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:48,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:10:48,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827569204] [2024-11-14 05:10:48,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827569204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910838066] [2024-11-14 05:10:48,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:48,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:48,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:48,750 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:48,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:10:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:48,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:10:48,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:48,936 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 05:10:48,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:49,117 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:10:49,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910838066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:10:49,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [170589901] [2024-11-14 05:10:49,122 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 05:10:49,122 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:10:49,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:10:49,123 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:10:49,123 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:53,973 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 05:10:53,974 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:10:59,836 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11514#(and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 2147483647 ~counter~0) (<= |ULTIMATE.start_main_~y~0#1| 1073741823) (<= 0 (+ 4611686018427387903 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 1) 0) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0))' at error location [2024-11-14 05:10:59,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:10:59,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:59,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-14 05:10:59,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628547086] [2024-11-14 05:10:59,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:10:59,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 05:10:59,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:59,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 05:10:59,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1040, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 05:10:59,838 INFO L87 Difference]: Start difference. First operand 303 states and 397 transitions. Second operand has 19 states, 18 states have (on average 6.0) internal successors, (108), 19 states have internal predecessors, (108), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 05:11:00,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:00,392 INFO L93 Difference]: Finished difference Result 765 states and 981 transitions. [2024-11-14 05:11:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 05:11:00,392 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.0) internal successors, (108), 19 states have internal predecessors, (108), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 54 [2024-11-14 05:11:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:00,396 INFO L225 Difference]: With dead ends: 765 [2024-11-14 05:11:00,397 INFO L226 Difference]: Without dead ends: 651 [2024-11-14 05:11:00,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 114 SyntacticMatches, 20 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=462, Invalid=2294, Unknown=0, NotChecked=0, Total=2756 [2024-11-14 05:11:00,399 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 374 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:00,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 669 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:11:00,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-14 05:11:00,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 524. [2024-11-14 05:11:00,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 413 states have (on average 1.460048426150121) internal successors, (603), 442 states have internal predecessors, (603), 68 states have call successors, (68), 14 states have call predecessors, (68), 14 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-14 05:11:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 739 transitions. [2024-11-14 05:11:00,450 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 739 transitions. Word has length 54 [2024-11-14 05:11:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:00,450 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 739 transitions. [2024-11-14 05:11:00,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.0) internal successors, (108), 19 states have internal predecessors, (108), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-14 05:11:00,451 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 739 transitions. [2024-11-14 05:11:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 05:11:00,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:00,451 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:00,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 05:11:00,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:00,652 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:11:00,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:00,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1813717949, now seen corresponding path program 1 times [2024-11-14 05:11:00,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:00,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213622244] [2024-11-14 05:11:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:00,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:11:00,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442996635] [2024-11-14 05:11:00,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:00,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:00,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:00,687 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:00,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:11:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:00,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:11:00,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:11:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:11:00,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:11:00,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:00,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213622244] [2024-11-14 05:11:00,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:11:00,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442996635] [2024-11-14 05:11:00,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442996635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:11:00,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:11:00,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:11:00,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305050732] [2024-11-14 05:11:00,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:11:00,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:11:00,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:00,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:11:00,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:11:00,896 INFO L87 Difference]: Start difference. First operand 524 states and 739 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:11:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:01,163 INFO L93 Difference]: Finished difference Result 545 states and 778 transitions. [2024-11-14 05:11:01,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:11:01,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 56 [2024-11-14 05:11:01,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:01,166 INFO L225 Difference]: With dead ends: 545 [2024-11-14 05:11:01,166 INFO L226 Difference]: Without dead ends: 541 [2024-11-14 05:11:01,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:11:01,168 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 134 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:01,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 151 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:11:01,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-14 05:11:01,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 516. [2024-11-14 05:11:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 409 states have (on average 1.374083129584352) internal successors, (562), 434 states have internal predecessors, (562), 68 states have call successors, (68), 14 states have call predecessors, (68), 14 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-14 05:11:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 698 transitions. [2024-11-14 05:11:01,212 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 698 transitions. Word has length 56 [2024-11-14 05:11:01,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:01,212 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 698 transitions. [2024-11-14 05:11:01,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:11:01,213 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 698 transitions. [2024-11-14 05:11:01,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 05:11:01,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:01,213 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:01,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 05:11:01,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-14 05:11:01,414 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:11:01,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:01,415 INFO L85 PathProgramCache]: Analyzing trace with hash 390681659, now seen corresponding path program 1 times [2024-11-14 05:11:01,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:01,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970545989] [2024-11-14 05:11:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:01,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:11:01,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165087252] [2024-11-14 05:11:01,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:01,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:01,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:01,440 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:01,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 05:11:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:01,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:11:01,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:11:01,640 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 05:11:01,640 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:11:01,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:01,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970545989] [2024-11-14 05:11:01,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:11:01,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165087252] [2024-11-14 05:11:01,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165087252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:11:01,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [519397457] [2024-11-14 05:11:01,985 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 05:11:01,985 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:11:01,985 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:11:01,985 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:11:01,985 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:11:05,359 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 05:11:05,360 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:11:11,467 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14807#(exists ((|v_ULTIMATE.start_main_~a~0#1_65| Int) (|v_ULTIMATE.start_main_~y~0#1_69| Int)) (and (exists ((|v_ULTIMATE.start_main_#t~post7#1_40| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 2 |v_ULTIMATE.start_main_#t~post7#1_40|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_69| 1073741823) (= ~counter~0 (+ |v_ULTIMATE.start_main_#t~post7#1_40| 1)) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |v_ULTIMATE.start_main_#t~post7#1_40| 9) (<= 0 (+ 4611686018427387903 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= 1 |v_ULTIMATE.start_main_~y~0#1_69|) (<= (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 1) 0) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~y~0#1_69| |v_ULTIMATE.start_main_~a~0#1_65|))))' at error location [2024-11-14 05:11:11,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:11:11,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:11:11,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 05:11:11,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668926551] [2024-11-14 05:11:11,468 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:11:11,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:11:11,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:11,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:11:11,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-14 05:11:11,469 INFO L87 Difference]: Start difference. First operand 516 states and 698 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:11:11,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:11,726 INFO L93 Difference]: Finished difference Result 662 states and 931 transitions. [2024-11-14 05:11:11,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:11:11,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2024-11-14 05:11:11,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:11,734 INFO L225 Difference]: With dead ends: 662 [2024-11-14 05:11:11,734 INFO L226 Difference]: Without dead ends: 658 [2024-11-14 05:11:11,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 81 SyntacticMatches, 20 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-14 05:11:11,737 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 147 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:11,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 206 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:11:11,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-14 05:11:11,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 596. [2024-11-14 05:11:11,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 479 states have (on average 1.3757828810020878) internal successors, (659), 504 states have internal predecessors, (659), 78 states have call successors, (78), 14 states have call predecessors, (78), 14 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-14 05:11:11,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 815 transitions. [2024-11-14 05:11:11,785 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 815 transitions. Word has length 57 [2024-11-14 05:11:11,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:11,786 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 815 transitions. [2024-11-14 05:11:11,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 05:11:11,786 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 815 transitions. [2024-11-14 05:11:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 05:11:11,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:11,787 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:11,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 05:11:11,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:11,991 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:11:11,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:11,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1585799352, now seen corresponding path program 1 times [2024-11-14 05:11:11,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:11,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036861760] [2024-11-14 05:11:11,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:11,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:12,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:12,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036861760] [2024-11-14 05:11:12,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036861760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:11:12,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164089101] [2024-11-14 05:11:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:12,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:12,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:12,085 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:12,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 05:11:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:12,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:11:12,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:11:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:12,222 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:11:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:12,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164089101] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:11:12,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1964097000] [2024-11-14 05:11:12,363 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 05:11:12,363 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:11:12,363 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:11:12,363 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:11:12,363 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:11:15,305 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 05:11:15,306 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:11:21,080 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16797#(and (<= ~counter~0 10) (<= 1 |#StackHeapBarrier|) (= (mod (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) 2) 0) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~x~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 1073741823) (<= 4611686018427387904 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= 3 ~counter~0))' at error location [2024-11-14 05:11:21,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:11:21,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:11:21,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-14 05:11:21,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595311088] [2024-11-14 05:11:21,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:11:21,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:11:21,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:21,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:11:21,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2024-11-14 05:11:21,082 INFO L87 Difference]: Start difference. First operand 596 states and 815 transitions. Second operand has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 8 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-11-14 05:11:21,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:21,900 INFO L93 Difference]: Finished difference Result 883 states and 1208 transitions. [2024-11-14 05:11:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 05:11:21,901 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 8 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) Word has length 72 [2024-11-14 05:11:21,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:21,904 INFO L225 Difference]: With dead ends: 883 [2024-11-14 05:11:21,904 INFO L226 Difference]: Without dead ends: 881 [2024-11-14 05:11:21,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 171 SyntacticMatches, 26 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=256, Invalid=934, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 05:11:21,906 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 435 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:21,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 441 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:11:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-14 05:11:21,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 619. [2024-11-14 05:11:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 497 states have (on average 1.3460764587525151) internal successors, (669), 521 states have internal predecessors, (669), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 05:11:21,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 837 transitions. [2024-11-14 05:11:21,963 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 837 transitions. Word has length 72 [2024-11-14 05:11:21,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:21,963 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 837 transitions. [2024-11-14 05:11:21,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 8 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 8 states have call predecessors, (23), 8 states have call successors, (23) [2024-11-14 05:11:21,964 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 837 transitions. [2024-11-14 05:11:21,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 05:11:21,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:21,965 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:21,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 05:11:22,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:22,167 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:11:22,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:22,167 INFO L85 PathProgramCache]: Analyzing trace with hash 760216224, now seen corresponding path program 1 times [2024-11-14 05:11:22,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:22,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726775766] [2024-11-14 05:11:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:22,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:22,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:22,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726775766] [2024-11-14 05:11:22,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726775766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:11:22,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:11:22,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:11:22,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970387113] [2024-11-14 05:11:22,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:11:22,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:11:22,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:11:22,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:11:22,237 INFO L87 Difference]: Start difference. First operand 619 states and 837 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:11:22,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:22,337 INFO L93 Difference]: Finished difference Result 619 states and 837 transitions. [2024-11-14 05:11:22,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:11:22,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2024-11-14 05:11:22,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:22,341 INFO L225 Difference]: With dead ends: 619 [2024-11-14 05:11:22,342 INFO L226 Difference]: Without dead ends: 618 [2024-11-14 05:11:22,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:11:22,343 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 20 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:22,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 135 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:11:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-14 05:11:22,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2024-11-14 05:11:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 497 states have (on average 1.3380281690140845) internal successors, (665), 520 states have internal predecessors, (665), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 05:11:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 833 transitions. [2024-11-14 05:11:22,391 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 833 transitions. Word has length 74 [2024-11-14 05:11:22,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:22,392 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 833 transitions. [2024-11-14 05:11:22,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:11:22,392 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 833 transitions. [2024-11-14 05:11:22,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 05:11:22,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:22,393 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:22,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-14 05:11:22,393 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:11:22,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:22,393 INFO L85 PathProgramCache]: Analyzing trace with hash 423355170, now seen corresponding path program 1 times [2024-11-14 05:11:22,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:22,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242372187] [2024-11-14 05:11:22,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:22,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:22,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:22,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242372187] [2024-11-14 05:11:22,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242372187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:11:22,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608016808] [2024-11-14 05:11:22,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:22,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:22,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:22,495 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:22,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 05:11:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:22,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:11:22,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:11:22,752 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:22,753 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:11:22,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608016808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:11:22,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:11:22,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-14 05:11:22,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398196569] [2024-11-14 05:11:22,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:11:22,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:11:22,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:22,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:11:22,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:11:22,754 INFO L87 Difference]: Start difference. First operand 618 states and 833 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:11:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:23,109 INFO L93 Difference]: Finished difference Result 663 states and 914 transitions. [2024-11-14 05:11:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:11:23,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2024-11-14 05:11:23,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:23,112 INFO L225 Difference]: With dead ends: 663 [2024-11-14 05:11:23,113 INFO L226 Difference]: Without dead ends: 662 [2024-11-14 05:11:23,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-14 05:11:23,114 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 87 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:23,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 118 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:11:23,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-14 05:11:23,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 617. [2024-11-14 05:11:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 497 states have (on average 1.3219315895372235) internal successors, (657), 519 states have internal predecessors, (657), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 05:11:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 825 transitions. [2024-11-14 05:11:23,170 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 825 transitions. Word has length 76 [2024-11-14 05:11:23,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:23,171 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 825 transitions. [2024-11-14 05:11:23,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-14 05:11:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 825 transitions. [2024-11-14 05:11:23,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 05:11:23,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:23,173 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:23,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 05:11:23,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:23,374 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:11:23,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:23,374 INFO L85 PathProgramCache]: Analyzing trace with hash 239108518, now seen corresponding path program 1 times [2024-11-14 05:11:23,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:23,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391625046] [2024-11-14 05:11:23,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:23,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:23,474 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:23,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:23,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391625046] [2024-11-14 05:11:23,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391625046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:11:23,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245335205] [2024-11-14 05:11:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:23,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:23,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:23,477 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:23,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 05:11:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:23,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:11:23,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:11:23,712 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:23,712 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:11:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:23,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245335205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:11:23,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [637463602] [2024-11-14 05:11:23,863 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:11:23,863 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:11:23,864 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:11:23,864 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:11:23,864 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:11:27,031 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 05:11:27,031 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:11:33,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [637463602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:11:33,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:11:33,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [4, 4, 4] total 28 [2024-11-14 05:11:33,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130731656] [2024-11-14 05:11:33,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:11:33,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 05:11:33,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:33,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 05:11:33,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:11:33,537 INFO L87 Difference]: Start difference. First operand 617 states and 825 transitions. Second operand has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 19 states have internal predecessors, (39), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:11:37,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:37,291 INFO L93 Difference]: Finished difference Result 642 states and 848 transitions. [2024-11-14 05:11:37,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-14 05:11:37,292 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 19 states have internal predecessors, (39), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 77 [2024-11-14 05:11:37,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:37,294 INFO L225 Difference]: With dead ends: 642 [2024-11-14 05:11:37,294 INFO L226 Difference]: Without dead ends: 638 [2024-11-14 05:11:37,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 177 SyntacticMatches, 29 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=354, Invalid=1206, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 05:11:37,295 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 37 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:37,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 98 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-14 05:11:37,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-14 05:11:37,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 627. [2024-11-14 05:11:37,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 507 states have (on average 1.2998027613412229) internal successors, (659), 529 states have internal predecessors, (659), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 05:11:37,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 827 transitions. [2024-11-14 05:11:37,357 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 827 transitions. Word has length 77 [2024-11-14 05:11:37,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:37,357 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 827 transitions. [2024-11-14 05:11:37,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 19 states have internal predecessors, (39), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-14 05:11:37,357 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 827 transitions. [2024-11-14 05:11:37,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 05:11:37,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:37,359 INFO L215 NwaCegarLoop]: trace histogram [9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:37,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 05:11:37,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 05:11:37,559 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:11:37,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:37,560 INFO L85 PathProgramCache]: Analyzing trace with hash -2068841561, now seen corresponding path program 1 times [2024-11-14 05:11:37,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:37,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020188458] [2024-11-14 05:11:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:37,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:37,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:37,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020188458] [2024-11-14 05:11:37,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020188458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:11:37,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118636815] [2024-11-14 05:11:37,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:37,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:37,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:37,754 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:37,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 05:11:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:37,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:11:37,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:11:37,976 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 68 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 05:11:37,976 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:11:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-14 05:11:38,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118636815] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:11:38,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1080026161] [2024-11-14 05:11:38,173 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:11:38,173 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:11:38,173 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:11:38,174 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:11:38,174 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:12:10,316 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:12:10,318 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:12:15,945 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24550#(and (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1| 1) (+ (* 2 |ULTIMATE.start_main_~b~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= 1 |#StackHeapBarrier|) (= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) (+ 9223372036854775808 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|)))' at error location [2024-11-14 05:12:15,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:12:15,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:12:15,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-14 05:12:15,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848208486] [2024-11-14 05:12:15,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:12:15,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-14 05:12:15,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:12:15,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-14 05:12:15,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=497, Invalid=3163, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 05:12:15,947 INFO L87 Difference]: Start difference. First operand 627 states and 827 transitions. Second operand has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 25 states have internal predecessors, (160), 9 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-14 05:12:16,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:12:16,737 INFO L93 Difference]: Finished difference Result 822 states and 1021 transitions. [2024-11-14 05:12:16,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-14 05:12:16,738 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 25 states have internal predecessors, (160), 9 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 80 [2024-11-14 05:12:16,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:12:16,741 INFO L225 Difference]: With dead ends: 822 [2024-11-14 05:12:16,741 INFO L226 Difference]: Without dead ends: 813 [2024-11-14 05:12:16,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 181 SyntacticMatches, 8 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2891 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=888, Invalid=6084, Unknown=0, NotChecked=0, Total=6972 [2024-11-14 05:12:16,744 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 255 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:12:16,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 957 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:12:16,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-14 05:12:16,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 657. [2024-11-14 05:12:16,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 529 states have (on average 1.2911153119092627) internal successors, (683), 554 states have internal predecessors, (683), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-14 05:12:16,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 863 transitions. [2024-11-14 05:12:16,813 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 863 transitions. Word has length 80 [2024-11-14 05:12:16,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:12:16,814 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 863 transitions. [2024-11-14 05:12:16,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 25 states have internal predecessors, (160), 9 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-14 05:12:16,814 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 863 transitions. [2024-11-14 05:12:16,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 05:12:16,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:12:16,815 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:12:16,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-14 05:12:17,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 05:12:17,016 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:12:17,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:12:17,016 INFO L85 PathProgramCache]: Analyzing trace with hash -297787203, now seen corresponding path program 1 times [2024-11-14 05:12:17,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:12:17,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397845464] [2024-11-14 05:12:17,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:12:17,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:12:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:12:17,118 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 05:12:17,118 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:12:17,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397845464] [2024-11-14 05:12:17,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397845464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:12:17,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971445679] [2024-11-14 05:12:17,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:12:17,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:12:17,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:12:17,121 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:12:17,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 05:12:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:12:17,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:12:17,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:12:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 05:12:17,331 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:12:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 05:12:17,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971445679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:12:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1723112822] [2024-11-14 05:12:17,569 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2024-11-14 05:12:17,569 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:12:17,569 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:12:17,569 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:12:17,569 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:12:21,064 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 05:12:21,065 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:12:25,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1723112822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:12:25,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:12:25,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5, 5] total 21 [2024-11-14 05:12:25,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822863726] [2024-11-14 05:12:25,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:12:25,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 05:12:25,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:12:25,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 05:12:25,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-14 05:12:25,980 INFO L87 Difference]: Start difference. First operand 657 states and 863 transitions. Second operand has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:12:27,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:12:27,035 INFO L93 Difference]: Finished difference Result 664 states and 870 transitions. [2024-11-14 05:12:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 05:12:27,035 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 85 [2024-11-14 05:12:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:12:27,038 INFO L225 Difference]: With dead ends: 664 [2024-11-14 05:12:27,039 INFO L226 Difference]: Without dead ends: 663 [2024-11-14 05:12:27,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 197 SyntacticMatches, 41 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-11-14 05:12:27,040 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 12 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:12:27,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 123 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:12:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-14 05:12:27,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 656. [2024-11-14 05:12:27,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 529 states have (on average 1.289224952741021) internal successors, (682), 553 states have internal predecessors, (682), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-14 05:12:27,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 862 transitions. [2024-11-14 05:12:27,108 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 862 transitions. Word has length 85 [2024-11-14 05:12:27,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:12:27,108 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 862 transitions. [2024-11-14 05:12:27,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:12:27,108 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 862 transitions. [2024-11-14 05:12:27,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 05:12:27,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:12:27,110 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:12:27,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-14 05:12:27,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 05:12:27,314 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:12:27,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:12:27,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1369479481, now seen corresponding path program 1 times [2024-11-14 05:12:27,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:12:27,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540585522] [2024-11-14 05:12:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:12:27,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:12:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:12:27,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891540624] [2024-11-14 05:12:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:12:27,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:12:27,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:12:27,339 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:12:27,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 05:12:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:12:27,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:12:27,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:12:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 05:12:27,748 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:12:27,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:12:27,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540585522] [2024-11-14 05:12:27,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:12:27,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891540624] [2024-11-14 05:12:27,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891540624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:12:27,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:12:27,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:12:27,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813673175] [2024-11-14 05:12:27,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:12:27,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:12:27,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:12:27,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:12:27,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:12:27,750 INFO L87 Difference]: Start difference. First operand 656 states and 862 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 05:12:28,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:12:28,139 INFO L93 Difference]: Finished difference Result 857 states and 1160 transitions. [2024-11-14 05:12:28,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:12:28,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 87 [2024-11-14 05:12:28,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:12:28,143 INFO L225 Difference]: With dead ends: 857 [2024-11-14 05:12:28,144 INFO L226 Difference]: Without dead ends: 854 [2024-11-14 05:12:28,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:12:28,145 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 134 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:12:28,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 287 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:12:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-14 05:12:28,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 653. [2024-11-14 05:12:28,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 529 states have (on average 1.2570888468809074) internal successors, (665), 550 states have internal predecessors, (665), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-14 05:12:28,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 845 transitions. [2024-11-14 05:12:28,215 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 845 transitions. Word has length 87 [2024-11-14 05:12:28,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:12:28,216 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 845 transitions. [2024-11-14 05:12:28,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 05:12:28,216 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 845 transitions. [2024-11-14 05:12:28,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 05:12:28,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:12:28,217 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:12:28,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 05:12:28,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 05:12:28,421 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:12:28,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:12:28,422 INFO L85 PathProgramCache]: Analyzing trace with hash -495808988, now seen corresponding path program 1 times [2024-11-14 05:12:28,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:12:28,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97771005] [2024-11-14 05:12:28,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:12:28,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:12:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:12:28,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286920315] [2024-11-14 05:12:28,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:12:28,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:12:28,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:12:28,470 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:12:28,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 05:12:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:12:28,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:12:28,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:12:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 05:12:28,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:12:29,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:12:29,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97771005] [2024-11-14 05:12:29,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:12:29,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286920315] [2024-11-14 05:12:29,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286920315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:12:29,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1283049350] [2024-11-14 05:12:29,214 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:12:29,214 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:12:29,215 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:12:29,215 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:12:29,215 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:13:02,571 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:13:02,572 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:13:15,003 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31020#(and (<= ~counter~0 10) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~q~0#1_96| Int) (|v_ULTIMATE.start_main_~y~0#1_71| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_71| 2147483647) (= |ULTIMATE.start_main_~b~0#1| (* |v_ULTIMATE.start_main_~y~0#1_71| |ULTIMATE.start_main_~a~0#1|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_71|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_96| |v_ULTIMATE.start_main_~y~0#1_71|)) (<= |v_ULTIMATE.start_main_~q~0#1_96| 9223372036854775807))) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~r~0#1| 4611686018427387902) (<= 0 (+ 4611686018427387903 |ULTIMATE.start_main_~r~0#1|)) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-14 05:13:15,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:13:15,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:13:15,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 05:13:15,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181080084] [2024-11-14 05:13:15,003 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:13:15,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:13:15,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:13:15,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:13:15,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=1644, Unknown=3, NotChecked=0, Total=1980 [2024-11-14 05:13:15,004 INFO L87 Difference]: Start difference. First operand 653 states and 845 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 05:13:15,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:13:15,423 INFO L93 Difference]: Finished difference Result 827 states and 1085 transitions. [2024-11-14 05:13:15,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:13:15,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 88 [2024-11-14 05:13:15,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:13:15,427 INFO L225 Difference]: With dead ends: 827 [2024-11-14 05:13:15,428 INFO L226 Difference]: Without dead ends: 824 [2024-11-14 05:13:15,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 143 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=340, Invalid=1727, Unknown=3, NotChecked=0, Total=2070 [2024-11-14 05:13:15,429 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 126 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:13:15,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 241 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:13:15,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-11-14 05:13:15,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 785. [2024-11-14 05:13:15,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 639 states have (on average 1.2644757433489828) internal successors, (808), 661 states have internal predecessors, (808), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 05:13:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1032 transitions. [2024-11-14 05:13:15,509 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1032 transitions. Word has length 88 [2024-11-14 05:13:15,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:13:15,510 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 1032 transitions. [2024-11-14 05:13:15,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 05:13:15,510 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1032 transitions. [2024-11-14 05:13:15,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 05:13:15,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:13:15,511 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:13:15,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-14 05:13:15,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:13:15,712 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:13:15,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:13:15,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1809790619, now seen corresponding path program 1 times [2024-11-14 05:13:15,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:13:15,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671723645] [2024-11-14 05:13:15,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:13:15,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:13:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:13:15,889 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 05:13:15,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:13:15,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671723645] [2024-11-14 05:13:15,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671723645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:13:15,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:13:15,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:13:15,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423212360] [2024-11-14 05:13:15,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:13:15,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:13:15,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:13:15,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:13:15,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:13:15,892 INFO L87 Difference]: Start difference. First operand 785 states and 1032 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 05:13:16,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:13:16,683 INFO L93 Difference]: Finished difference Result 788 states and 1033 transitions. [2024-11-14 05:13:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:13:16,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 89 [2024-11-14 05:13:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:13:16,686 INFO L225 Difference]: With dead ends: 788 [2024-11-14 05:13:16,686 INFO L226 Difference]: Without dead ends: 785 [2024-11-14 05:13:16,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-14 05:13:16,687 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 103 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:13:16,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 171 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:13:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2024-11-14 05:13:16,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 782. [2024-11-14 05:13:16,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 639 states have (on average 1.2284820031298904) internal successors, (785), 658 states have internal predecessors, (785), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 05:13:16,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1009 transitions. [2024-11-14 05:13:16,775 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1009 transitions. Word has length 89 [2024-11-14 05:13:16,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:13:16,776 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1009 transitions. [2024-11-14 05:13:16,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 05:13:16,777 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1009 transitions. [2024-11-14 05:13:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 05:13:16,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:13:16,781 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:13:16,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-14 05:13:16,781 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:13:16,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:13:16,782 INFO L85 PathProgramCache]: Analyzing trace with hash 268934406, now seen corresponding path program 1 times [2024-11-14 05:13:16,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:13:16,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241934654] [2024-11-14 05:13:16,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:13:16,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:13:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:13:16,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270011365] [2024-11-14 05:13:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:13:16,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:13:16,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:13:16,802 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:13:16,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 05:13:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:13:16,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:13:16,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:13:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 05:13:17,374 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:13:21,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:13:21,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241934654] [2024-11-14 05:13:21,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:13:21,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270011365] [2024-11-14 05:13:21,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270011365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:13:21,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1059873754] [2024-11-14 05:13:21,736 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:13:21,736 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:13:21,737 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:13:21,737 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:13:21,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:13:55,131 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:13:55,132 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:14:02,228 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35478#(and (<= ~counter~0 10) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~q~0#1_114| Int) (|v_ULTIMATE.start_main_~y~0#1_72| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_72| 2147483647) (<= 4611686018427387906 (* |v_ULTIMATE.start_main_~q~0#1_114| |v_ULTIMATE.start_main_~y~0#1_72|)) (= (* |v_ULTIMATE.start_main_~y~0#1_72| |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~b~0#1|) (<= 1 |v_ULTIMATE.start_main_~y~0#1_72|) (<= (* |v_ULTIMATE.start_main_~q~0#1_114| |v_ULTIMATE.start_main_~y~0#1_72|) 9223372036854775807))) (<= 0 (+ 4611686018427387902 |ULTIMATE.start_main_~b~0#1|)))' at error location [2024-11-14 05:14:02,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:14:02,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:14:02,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 05:14:02,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364403859] [2024-11-14 05:14:02,228 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:14:02,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:14:02,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:14:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:14:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=2061, Unknown=2, NotChecked=0, Total=2450 [2024-11-14 05:14:02,230 INFO L87 Difference]: Start difference. First operand 782 states and 1009 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 05:14:02,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:02,731 INFO L93 Difference]: Finished difference Result 806 states and 1028 transitions. [2024-11-14 05:14:02,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:14:02,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 90 [2024-11-14 05:14:02,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:02,733 INFO L225 Difference]: With dead ends: 806 [2024-11-14 05:14:02,733 INFO L226 Difference]: Without dead ends: 799 [2024-11-14 05:14:02,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 197 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 915 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=387, Invalid=2061, Unknown=2, NotChecked=0, Total=2450 [2024-11-14 05:14:02,735 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 76 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:02,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 303 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:14:02,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-14 05:14:02,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 780. [2024-11-14 05:14:02,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 637 states have (on average 1.218210361067504) internal successors, (776), 656 states have internal predecessors, (776), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 05:14:02,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1000 transitions. [2024-11-14 05:14:02,813 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1000 transitions. Word has length 90 [2024-11-14 05:14:02,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:02,813 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1000 transitions. [2024-11-14 05:14:02,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-14 05:14:02,813 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1000 transitions. [2024-11-14 05:14:02,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 05:14:02,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:02,814 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:14:02,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 05:14:03,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-14 05:14:03,019 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:14:03,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:03,019 INFO L85 PathProgramCache]: Analyzing trace with hash 679388618, now seen corresponding path program 2 times [2024-11-14 05:14:03,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:14:03,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630928842] [2024-11-14 05:14:03,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:03,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:14:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:14:03,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386870681] [2024-11-14 05:14:03,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:14:03,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:14:03,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:14:03,037 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:14:03,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 05:14:03,090 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 05:14:03,090 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:14:03,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:14:03,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:14:03,405 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-14 05:14:03,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:14:06,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:14:06,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630928842] [2024-11-14 05:14:06,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:14:06,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386870681] [2024-11-14 05:14:06,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386870681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:14:06,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1671718951] [2024-11-14 05:14:06,057 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 05:14:06,057 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:14:06,058 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:14:06,058 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:14:06,058 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:14:08,977 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 05:14:08,978 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:14:16,603 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37766#(exists ((|v_ULTIMATE.start_main_~y~0#1_75| Int) (|v_ULTIMATE.start_main_~a~0#1_161| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_161| |v_ULTIMATE.start_main_~y~0#1_75|)) (exists ((|v_ULTIMATE.start_main_#t~post7#1_126| Int)) (and (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |v_ULTIMATE.start_main_~y~0#1_75| 1073741823) (<= 0 (+ 4611686018427387903 (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2))) (<= 2 |v_ULTIMATE.start_main_#t~post7#1_126|) (<= (+ (div (* (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 1) 0) (<= 1 |v_ULTIMATE.start_main_~y~0#1_75|) (<= |v_ULTIMATE.start_main_#t~post7#1_126| 9) (= ~counter~0 (+ |v_ULTIMATE.start_main_#t~post7#1_126| 1)) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0)))))' at error location [2024-11-14 05:14:16,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:14:16,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:14:16,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 05:14:16,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101189656] [2024-11-14 05:14:16,603 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:14:16,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:14:16,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:14:16,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:14:16,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=517, Unknown=1, NotChecked=0, Total=650 [2024-11-14 05:14:16,604 INFO L87 Difference]: Start difference. First operand 780 states and 1000 transitions. Second operand has 7 states, 5 states have (on average 9.6) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:14:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:17,434 INFO L93 Difference]: Finished difference Result 1070 states and 1401 transitions. [2024-11-14 05:14:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:14:17,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.6) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2024-11-14 05:14:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:17,439 INFO L225 Difference]: With dead ends: 1070 [2024-11-14 05:14:17,439 INFO L226 Difference]: Without dead ends: 1068 [2024-11-14 05:14:17,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 133 SyntacticMatches, 33 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=152, Invalid=603, Unknown=1, NotChecked=0, Total=756 [2024-11-14 05:14:17,440 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 124 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:17,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 283 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:14:17,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-14 05:14:17,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 788. [2024-11-14 05:14:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 645 states have (on average 1.2124031007751939) internal successors, (782), 664 states have internal predecessors, (782), 112 states have call successors, (112), 16 states have call predecessors, (112), 16 states have return successors, (112), 107 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 05:14:17,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1006 transitions. [2024-11-14 05:14:17,518 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1006 transitions. Word has length 90 [2024-11-14 05:14:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:17,519 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 1006 transitions. [2024-11-14 05:14:17,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.6) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:14:17,519 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1006 transitions. [2024-11-14 05:14:17,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 05:14:17,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:17,520 INFO L215 NwaCegarLoop]: trace histogram [10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:14:17,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 05:14:17,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:14:17,725 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:14:17,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:17,725 INFO L85 PathProgramCache]: Analyzing trace with hash 56943242, now seen corresponding path program 1 times [2024-11-14 05:14:17,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:14:17,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971088167] [2024-11-14 05:14:17,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:17,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:14:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:17,915 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 05:14:17,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:14:17,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971088167] [2024-11-14 05:14:17,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971088167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:14:17,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117096045] [2024-11-14 05:14:17,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:17,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:14:17,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:14:17,918 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:14:17,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 05:14:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:17,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:14:17,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:14:18,079 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 05:14:18,080 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:14:18,260 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 05:14:18,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117096045] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:14:18,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [817939093] [2024-11-14 05:14:18,262 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:14:18,262 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:14:18,262 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:14:18,262 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:14:18,262 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:14:21,165 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 05:14:21,165 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:14:29,296 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40623#(and (<= 11 ~counter~0) (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (div |ULTIMATE.start_main_~b~0#1| 2) 4611686018427387903) (<= 2 (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~y~0#1| 1073741823) (<= ~counter~0 2147483647) (<= 1 (div |ULTIMATE.start_main_~b~0#1| 2)) (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) 2147483647) (= (mod |ULTIMATE.start_main_~b~0#1| 2) 0))' at error location [2024-11-14 05:14:29,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:14:29,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:14:29,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-14 05:14:29,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801821925] [2024-11-14 05:14:29,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:14:29,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 05:14:29,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:14:29,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 05:14:29,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1427, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 05:14:29,298 INFO L87 Difference]: Start difference. First operand 788 states and 1006 transitions. Second operand has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-14 05:14:30,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:30,017 INFO L93 Difference]: Finished difference Result 1159 states and 1453 transitions. [2024-11-14 05:14:30,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 05:14:30,017 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) Word has length 92 [2024-11-14 05:14:30,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:30,021 INFO L225 Difference]: With dead ends: 1159 [2024-11-14 05:14:30,021 INFO L226 Difference]: Without dead ends: 948 [2024-11-14 05:14:30,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 212 SyntacticMatches, 34 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2091 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=461, Invalid=2845, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 05:14:30,023 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 201 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:30,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 732 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:14:30,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-14 05:14:30,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 905. [2024-11-14 05:14:30,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 741 states have (on average 1.1889338731443995) internal successors, (881), 761 states have internal predecessors, (881), 128 states have call successors, (128), 21 states have call predecessors, (128), 21 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-14 05:14:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1137 transitions. [2024-11-14 05:14:30,090 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1137 transitions. Word has length 92 [2024-11-14 05:14:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:30,091 INFO L471 AbstractCegarLoop]: Abstraction has 905 states and 1137 transitions. [2024-11-14 05:14:30,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 6 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 6 states have call predecessors, (30), 6 states have call successors, (30) [2024-11-14 05:14:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1137 transitions. [2024-11-14 05:14:30,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-14 05:14:30,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:30,092 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:14:30,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 05:14:30,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:14:30,292 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:14:30,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:30,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1465152392, now seen corresponding path program 1 times [2024-11-14 05:14:30,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:14:30,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653224494] [2024-11-14 05:14:30,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:30,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:14:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:30,404 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-14 05:14:30,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:14:30,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653224494] [2024-11-14 05:14:30,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653224494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:14:30,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:14:30,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:14:30,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379808031] [2024-11-14 05:14:30,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:14:30,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:14:30,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:14:30,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:14:30,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:14:30,406 INFO L87 Difference]: Start difference. First operand 905 states and 1137 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 05:14:30,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:30,987 INFO L93 Difference]: Finished difference Result 908 states and 1140 transitions. [2024-11-14 05:14:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:14:30,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2024-11-14 05:14:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:30,991 INFO L225 Difference]: With dead ends: 908 [2024-11-14 05:14:30,991 INFO L226 Difference]: Without dead ends: 906 [2024-11-14 05:14:30,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:14:30,992 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:30,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 55 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:14:30,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-14 05:14:31,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 906. [2024-11-14 05:14:31,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 743 states have (on average 1.1695827725437415) internal successors, (869), 762 states have internal predecessors, (869), 128 states have call successors, (128), 21 states have call predecessors, (128), 21 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-14 05:14:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1125 transitions. [2024-11-14 05:14:31,067 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1125 transitions. Word has length 105 [2024-11-14 05:14:31,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:31,068 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1125 transitions. [2024-11-14 05:14:31,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 05:14:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1125 transitions. [2024-11-14 05:14:31,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 05:14:31,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:31,069 INFO L215 NwaCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:14:31,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-14 05:14:31,069 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:14:31,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash -737821334, now seen corresponding path program 1 times [2024-11-14 05:14:31,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:14:31,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253381682] [2024-11-14 05:14:31,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:31,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:14:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-14 05:14:31,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:14:31,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253381682] [2024-11-14 05:14:31,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253381682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:14:31,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:14:31,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:14:31,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612187629] [2024-11-14 05:14:31,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:14:31,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:14:31,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:14:31,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:14:31,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:14:31,129 INFO L87 Difference]: Start difference. First operand 906 states and 1125 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 05:14:31,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:31,435 INFO L93 Difference]: Finished difference Result 909 states and 1127 transitions. [2024-11-14 05:14:31,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:14:31,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2024-11-14 05:14:31,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:31,439 INFO L225 Difference]: With dead ends: 909 [2024-11-14 05:14:31,439 INFO L226 Difference]: Without dead ends: 903 [2024-11-14 05:14:31,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:14:31,440 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:31,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 56 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:14:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-14 05:14:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 780. [2024-11-14 05:14:31,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 639 states have (on average 1.1408450704225352) internal successors, (729), 656 states have internal predecessors, (729), 107 states have call successors, (107), 21 states have call predecessors, (107), 21 states have return successors, (107), 102 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-14 05:14:31,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 943 transitions. [2024-11-14 05:14:31,540 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 943 transitions. Word has length 107 [2024-11-14 05:14:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:31,540 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 943 transitions. [2024-11-14 05:14:31,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 05:14:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 943 transitions. [2024-11-14 05:14:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-14 05:14:31,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:31,542 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:14:31,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-14 05:14:31,542 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:14:31,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:31,543 INFO L85 PathProgramCache]: Analyzing trace with hash -786666370, now seen corresponding path program 1 times [2024-11-14 05:14:31,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:14:31,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175306529] [2024-11-14 05:14:31,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:31,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:14:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 05:14:31,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:14:31,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175306529] [2024-11-14 05:14:31,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175306529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:14:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331536070] [2024-11-14 05:14:31,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:31,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:14:31,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:14:31,697 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:14:31,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 05:14:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:31,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:14:31,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:14:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-14 05:14:31,868 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:14:31,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331536070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:14:31,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:14:31,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-14 05:14:31,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898246146] [2024-11-14 05:14:31,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:14:31,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:14:31,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:14:31,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:14:31,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:14:31,870 INFO L87 Difference]: Start difference. First operand 780 states and 943 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 05:14:32,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:32,525 INFO L93 Difference]: Finished difference Result 1312 states and 1629 transitions. [2024-11-14 05:14:32,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:14:32,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 120 [2024-11-14 05:14:32,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:32,529 INFO L225 Difference]: With dead ends: 1312 [2024-11-14 05:14:32,529 INFO L226 Difference]: Without dead ends: 800 [2024-11-14 05:14:32,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:14:32,531 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 41 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:32,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 124 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:14:32,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-14 05:14:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 725. [2024-11-14 05:14:32,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 599 states have (on average 1.1585976627712855) internal successors, (694), 614 states have internal predecessors, (694), 96 states have call successors, (96), 17 states have call predecessors, (96), 17 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-14 05:14:32,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 886 transitions. [2024-11-14 05:14:32,642 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 886 transitions. Word has length 120 [2024-11-14 05:14:32,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:32,642 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 886 transitions. [2024-11-14 05:14:32,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-14 05:14:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 886 transitions. [2024-11-14 05:14:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-14 05:14:32,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:32,644 INFO L215 NwaCegarLoop]: trace histogram [14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:14:32,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 05:14:32,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:14:32,849 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:14:32,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:32,849 INFO L85 PathProgramCache]: Analyzing trace with hash 2055313164, now seen corresponding path program 2 times [2024-11-14 05:14:32,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:14:32,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365775093] [2024-11-14 05:14:32,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:32,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:14:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-14 05:14:32,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:14:32,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365775093] [2024-11-14 05:14:32,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365775093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:14:32,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554368378] [2024-11-14 05:14:32,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:14:32,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:14:32,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:14:32,998 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:14:33,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 05:14:33,068 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 05:14:33,068 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:14:33,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 05:14:33,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:14:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-14 05:14:33,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:14:36,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554368378] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:14:36,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [824562931] [2024-11-14 05:14:36,192 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:14:36,192 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:14:36,192 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:14:36,192 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:14:36,192 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:15:07,166 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:15:07,167 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:15:13,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [824562931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:15:13,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:15:13,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [6, 7] total 47 [2024-11-14 05:15:13,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053565086] [2024-11-14 05:15:13,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:15:13,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-14 05:15:13,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:15:13,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-14 05:15:13,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=2315, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 05:15:13,113 INFO L87 Difference]: Start difference. First operand 725 states and 886 transitions. Second operand has 37 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:15:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:15:17,950 INFO L93 Difference]: Finished difference Result 825 states and 983 transitions. [2024-11-14 05:15:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-14 05:15:17,950 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 120 [2024-11-14 05:15:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:15:17,954 INFO L225 Difference]: With dead ends: 825 [2024-11-14 05:15:17,954 INFO L226 Difference]: Without dead ends: 787 [2024-11-14 05:15:17,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 233 SyntacticMatches, 12 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2517 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1355, Invalid=5287, Unknown=0, NotChecked=0, Total=6642 [2024-11-14 05:15:17,957 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 267 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:15:17,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 143 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 05:15:17,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-11-14 05:15:18,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 702. [2024-11-14 05:15:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 574 states have (on average 1.1236933797909407) internal successors, (645), 589 states have internal predecessors, (645), 92 states have call successors, (92), 23 states have call predecessors, (92), 23 states have return successors, (92), 89 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-14 05:15:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 829 transitions. [2024-11-14 05:15:18,030 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 829 transitions. Word has length 120 [2024-11-14 05:15:18,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:15:18,031 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 829 transitions. [2024-11-14 05:15:18,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:15:18,031 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 829 transitions. [2024-11-14 05:15:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-14 05:15:18,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:15:18,032 INFO L215 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:15:18,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-14 05:15:18,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-14 05:15:18,232 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:15:18,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:15:18,233 INFO L85 PathProgramCache]: Analyzing trace with hash 2114452671, now seen corresponding path program 1 times [2024-11-14 05:15:18,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:15:18,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091176524] [2024-11-14 05:15:18,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:18,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:15:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 2 proven. 152 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-14 05:15:18,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:15:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091176524] [2024-11-14 05:15:18,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091176524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:15:18,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663813381] [2024-11-14 05:15:18,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:18,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:15:18,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:15:18,608 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:15:18,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 05:15:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:18,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:15:18,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:15:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 2 proven. 448 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 05:15:18,906 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:15:19,259 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 2 proven. 152 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-14 05:15:19,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663813381] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:15:19,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1491066891] [2024-11-14 05:15:19,261 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:15:19,261 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:15:19,261 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:15:19,261 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:15:19,261 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:15:44,865 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:15:44,866 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:15:49,649 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53949#(exists ((|v_ULTIMATE.start_main_~r~0#1_148| Int) (|v_ULTIMATE.start_main_~b~0#1_194| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= ~counter~0 2147483647) (<= (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_194|) |v_ULTIMATE.start_main_~r~0#1_148|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-14 05:15:49,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:15:49,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:15:49,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 16] total 27 [2024-11-14 05:15:49,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119269693] [2024-11-14 05:15:49,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:15:49,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 05:15:49,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:15:49,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 05:15:49,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=3568, Unknown=0, NotChecked=0, Total=4032 [2024-11-14 05:15:49,653 INFO L87 Difference]: Start difference. First operand 702 states and 829 transitions. Second operand has 27 states, 27 states have (on average 7.925925925925926) internal successors, (214), 27 states have internal predecessors, (214), 9 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2024-11-14 05:15:50,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:15:50,450 INFO L93 Difference]: Finished difference Result 1256 states and 1484 transitions. [2024-11-14 05:15:50,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-14 05:15:50,451 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.925925925925926) internal successors, (214), 27 states have internal predecessors, (214), 9 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) Word has length 166 [2024-11-14 05:15:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:15:50,454 INFO L225 Difference]: With dead ends: 1256 [2024-11-14 05:15:50,454 INFO L226 Difference]: Without dead ends: 1017 [2024-11-14 05:15:50,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 431 SyntacticMatches, 20 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3857 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=913, Invalid=7097, Unknown=0, NotChecked=0, Total=8010 [2024-11-14 05:15:50,456 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 147 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:15:50,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 584 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:15:50,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2024-11-14 05:15:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 891. [2024-11-14 05:15:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 732 states have (on average 1.1024590163934427) internal successors, (807), 746 states have internal predecessors, (807), 116 states have call successors, (116), 30 states have call predecessors, (116), 30 states have return successors, (116), 114 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-14 05:15:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1039 transitions. [2024-11-14 05:15:50,549 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1039 transitions. Word has length 166 [2024-11-14 05:15:50,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:15:50,549 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1039 transitions. [2024-11-14 05:15:50,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.925925925925926) internal successors, (214), 27 states have internal predecessors, (214), 9 states have call successors, (54), 7 states have call predecessors, (54), 7 states have return successors, (54), 9 states have call predecessors, (54), 9 states have call successors, (54) [2024-11-14 05:15:50,549 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1039 transitions. [2024-11-14 05:15:50,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-14 05:15:50,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:15:50,551 INFO L215 NwaCegarLoop]: trace histogram [24, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 05:15:50,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 05:15:50,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 05:15:50,752 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:15:50,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:15:50,752 INFO L85 PathProgramCache]: Analyzing trace with hash -341157749, now seen corresponding path program 2 times [2024-11-14 05:15:50,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:15:50,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861119188] [2024-11-14 05:15:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:15:50,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:15:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:15:51,026 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 102 proven. 148 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-11-14 05:15:51,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:15:51,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861119188] [2024-11-14 05:15:51,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861119188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:15:51,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981496237] [2024-11-14 05:15:51,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:15:51,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:15:51,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:15:51,029 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:15:51,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 05:15:51,128 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 05:15:51,128 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:15:51,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:15:51,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:15:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 120 proven. 102 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2024-11-14 05:15:51,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:15:52,196 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2024-11-14 05:15:52,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981496237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:15:52,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1011975034] [2024-11-14 05:15:52,198 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:15:52,198 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:15:52,198 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:15:52,198 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:15:52,198 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:16:18,959 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:16:18,960 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:16:26,417 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '57977#(exists ((|v_ULTIMATE.start_main_~r~0#1_166| Int) (|v_ULTIMATE.start_main_~b~0#1_219| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_219|) |v_ULTIMATE.start_main_~r~0#1_166|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-14 05:16:26,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:16:26,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:16:26,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-14 05:16:26,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530645173] [2024-11-14 05:16:26,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:16:26,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 05:16:26,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:16:26,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 05:16:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=494, Invalid=3166, Unknown=0, NotChecked=0, Total=3660 [2024-11-14 05:16:26,420 INFO L87 Difference]: Start difference. First operand 891 states and 1039 transitions. Second operand has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 16 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 16 states have call predecessors, (60), 16 states have call successors, (60) [2024-11-14 05:16:31,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:16:31,897 INFO L93 Difference]: Finished difference Result 2811 states and 3470 transitions. [2024-11-14 05:16:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-14 05:16:31,897 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 16 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 16 states have call predecessors, (60), 16 states have call successors, (60) Word has length 209 [2024-11-14 05:16:31,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:16:31,904 INFO L225 Difference]: With dead ends: 2811 [2024-11-14 05:16:31,904 INFO L226 Difference]: Without dead ends: 2334 [2024-11-14 05:16:31,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 561 SyntacticMatches, 15 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5729 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=2254, Invalid=12508, Unknown=0, NotChecked=0, Total=14762 [2024-11-14 05:16:31,908 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 2127 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 3432 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 3824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 3432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:16:31,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 2016 Invalid, 3824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 3432 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 05:16:31,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2024-11-14 05:16:32,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 1755. [2024-11-14 05:16:32,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1755 states, 1465 states have (on average 1.1385665529010238) internal successors, (1668), 1484 states have internal predecessors, (1668), 247 states have call successors, (247), 30 states have call predecessors, (247), 30 states have return successors, (247), 240 states have call predecessors, (247), 247 states have call successors, (247) [2024-11-14 05:16:32,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1755 states to 1755 states and 2162 transitions. [2024-11-14 05:16:32,111 INFO L78 Accepts]: Start accepts. Automaton has 1755 states and 2162 transitions. Word has length 209 [2024-11-14 05:16:32,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:16:32,112 INFO L471 AbstractCegarLoop]: Abstraction has 1755 states and 2162 transitions. [2024-11-14 05:16:32,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.041666666666666) internal successors, (361), 24 states have internal predecessors, (361), 16 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 16 states have call predecessors, (60), 16 states have call successors, (60) [2024-11-14 05:16:32,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1755 states and 2162 transitions. [2024-11-14 05:16:32,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-14 05:16:32,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:16:32,114 INFO L215 NwaCegarLoop]: trace histogram [27, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:16:32,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-14 05:16:32,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-14 05:16:32,315 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:16:32,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:16:32,315 INFO L85 PathProgramCache]: Analyzing trace with hash 297537297, now seen corresponding path program 3 times [2024-11-14 05:16:32,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:16:32,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160770561] [2024-11-14 05:16:32,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:16:32,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:16:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:16:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 2 proven. 367 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-14 05:16:32,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:16:32,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160770561] [2024-11-14 05:16:32,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160770561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:16:32,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296589095] [2024-11-14 05:16:32,911 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:16:32,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:16:32,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:16:32,914 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:16:32,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 05:16:33,083 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:16:33,083 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:16:33,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:16:33,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:16:33,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 389 proven. 187 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-14 05:16:33,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:16:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 169 proven. 187 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-14 05:16:33,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296589095] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:16:33,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [221570102] [2024-11-14 05:16:33,810 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:16:33,810 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:16:33,810 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:16:33,810 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:16:33,811 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:17:03,341 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:17:03,343 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:17:11,064 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '65088#(exists ((|v_ULTIMATE.start_main_~r~0#1_182| Int) (|v_ULTIMATE.start_main_~b~0#1_247| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_247|) |v_ULTIMATE.start_main_~r~0#1_182|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-14 05:17:11,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:17:11,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:17:11,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 9, 9] total 30 [2024-11-14 05:17:11,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334272039] [2024-11-14 05:17:11,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:17:11,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-14 05:17:11,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:17:11,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-14 05:17:11,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=3987, Unknown=0, NotChecked=0, Total=4422 [2024-11-14 05:17:11,067 INFO L87 Difference]: Start difference. First operand 1755 states and 2162 transitions. Second operand has 30 states, 30 states have (on average 10.266666666666667) internal successors, (308), 30 states have internal predecessors, (308), 17 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 17 states have call predecessors, (60), 17 states have call successors, (60) [2024-11-14 05:17:15,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:17:15,437 INFO L93 Difference]: Finished difference Result 3898 states and 4900 transitions. [2024-11-14 05:17:15,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2024-11-14 05:17:15,438 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 10.266666666666667) internal successors, (308), 30 states have internal predecessors, (308), 17 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 17 states have call predecessors, (60), 17 states have call successors, (60) Word has length 232 [2024-11-14 05:17:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:17:15,454 INFO L225 Difference]: With dead ends: 3898 [2024-11-14 05:17:15,454 INFO L226 Difference]: Without dead ends: 2761 [2024-11-14 05:17:15,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 629 SyntacticMatches, 27 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6913 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1516, Invalid=16306, Unknown=0, NotChecked=0, Total=17822 [2024-11-14 05:17:15,461 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 628 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:17:15,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 869 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 05:17:15,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2024-11-14 05:17:15,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2254. [2024-11-14 05:17:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 1888 states have (on average 1.1382415254237288) internal successors, (2149), 1907 states have internal predecessors, (2149), 320 states have call successors, (320), 33 states have call predecessors, (320), 33 states have return successors, (320), 313 states have call predecessors, (320), 320 states have call successors, (320) [2024-11-14 05:17:15,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 2789 transitions. [2024-11-14 05:17:15,857 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 2789 transitions. Word has length 232 [2024-11-14 05:17:15,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:17:15,858 INFO L471 AbstractCegarLoop]: Abstraction has 2254 states and 2789 transitions. [2024-11-14 05:17:15,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.266666666666667) internal successors, (308), 30 states have internal predecessors, (308), 17 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 17 states have call predecessors, (60), 17 states have call successors, (60) [2024-11-14 05:17:15,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 2789 transitions. [2024-11-14 05:17:15,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-14 05:17:15,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:17:15,859 INFO L215 NwaCegarLoop]: trace histogram [27, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-14 05:17:15,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-14 05:17:16,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:16,060 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:17:16,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:17:16,060 INFO L85 PathProgramCache]: Analyzing trace with hash 490462675, now seen corresponding path program 1 times [2024-11-14 05:17:16,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:17:16,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515554049] [2024-11-14 05:17:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:16,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:17:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-14 05:17:16,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:17:16,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515554049] [2024-11-14 05:17:16,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515554049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:17:16,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527751786] [2024-11-14 05:17:16,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:16,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:16,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:17:16,394 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:17:16,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 05:17:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:16,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:17:16,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:17:16,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 4 proven. 999 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-14 05:17:16,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:17:17,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 4 proven. 367 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-14 05:17:17,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527751786] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:17:17,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [306132998] [2024-11-14 05:17:17,503 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:17:17,503 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:17:17,503 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:17:17,503 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:17:17,503 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:17:43,953 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:17:43,954 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:17:50,712 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '74168#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~a~0#1_285| Int) (|v_ULTIMATE.start_main_~q~0#1_193| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_285| |v_ULTIMATE.start_main_~q~0#1_193|))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 05:17:50,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:17:50,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:17:50,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 19, 20] total 34 [2024-11-14 05:17:50,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268597832] [2024-11-14 05:17:50,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:17:50,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-14 05:17:50,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:17:50,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-14 05:17:50,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=472, Invalid=4498, Unknown=0, NotChecked=0, Total=4970 [2024-11-14 05:17:50,714 INFO L87 Difference]: Start difference. First operand 2254 states and 2789 transitions. Second operand has 34 states, 34 states have (on average 11.382352941176471) internal successors, (387), 34 states have internal predecessors, (387), 17 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 17 states have call predecessors, (81), 17 states have call successors, (81) [2024-11-14 05:17:53,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:17:53,425 INFO L93 Difference]: Finished difference Result 3137 states and 3895 transitions. [2024-11-14 05:17:53,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-11-14 05:17:53,426 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 11.382352941176471) internal successors, (387), 34 states have internal predecessors, (387), 17 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 17 states have call predecessors, (81), 17 states have call successors, (81) Word has length 234 [2024-11-14 05:17:53,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:17:53,435 INFO L225 Difference]: With dead ends: 3137 [2024-11-14 05:17:53,435 INFO L226 Difference]: Without dead ends: 2528 [2024-11-14 05:17:53,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 606 SyntacticMatches, 35 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 8227 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=2130, Invalid=15960, Unknown=0, NotChecked=0, Total=18090 [2024-11-14 05:17:53,445 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 390 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:17:53,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 782 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 05:17:53,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2024-11-14 05:17:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2400. [2024-11-14 05:17:53,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2400 states, 2008 states have (on average 1.1309760956175299) internal successors, (2271), 2028 states have internal predecessors, (2271), 340 states have call successors, (340), 39 states have call predecessors, (340), 39 states have return successors, (340), 332 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-14 05:17:53,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 2951 transitions. [2024-11-14 05:17:53,857 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 2951 transitions. Word has length 234 [2024-11-14 05:17:53,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:17:53,858 INFO L471 AbstractCegarLoop]: Abstraction has 2400 states and 2951 transitions. [2024-11-14 05:17:53,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 11.382352941176471) internal successors, (387), 34 states have internal predecessors, (387), 17 states have call successors, (81), 9 states have call predecessors, (81), 9 states have return successors, (81), 17 states have call predecessors, (81), 17 states have call successors, (81) [2024-11-14 05:17:53,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 2951 transitions. [2024-11-14 05:17:53,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-14 05:17:53,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:17:53,861 INFO L215 NwaCegarLoop]: trace histogram [28, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2024-11-14 05:17:53,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-14 05:17:54,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-14 05:17:54,066 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:17:54,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:17:54,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1874799958, now seen corresponding path program 2 times [2024-11-14 05:17:54,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:17:54,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677520180] [2024-11-14 05:17:54,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:17:54,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:17:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:17:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2024-11-14 05:17:54,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:17:54,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677520180] [2024-11-14 05:17:54,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677520180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:17:54,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100965397] [2024-11-14 05:17:54,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:17:54,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:17:54,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:17:54,414 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:17:54,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 05:17:54,559 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 05:17:54,559 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:17:54,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 05:17:54,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:17:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 55 proven. 252 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2024-11-14 05:17:55,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:17:59,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100965397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:17:59,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1275301826] [2024-11-14 05:17:59,702 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:17:59,702 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:17:59,702 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:17:59,702 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:17:59,702 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:18:24,884 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:18:24,885 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:18:31,985 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '81885#(and (exists ((|v_ULTIMATE.start_main_~q~0#1_209| Int) (|v_ULTIMATE.start_main_~a~0#1_307| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_307| |v_ULTIMATE.start_main_~q~0#1_209|))) (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 05:18:31,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:18:31,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:18:31,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2024-11-14 05:18:31,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801730569] [2024-11-14 05:18:31,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:18:31,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 05:18:31,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:18:31,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 05:18:31,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=3235, Unknown=2, NotChecked=0, Total=3660 [2024-11-14 05:18:31,988 INFO L87 Difference]: Start difference. First operand 2400 states and 2951 transitions. Second operand has 21 states, 19 states have (on average 13.421052631578947) internal successors, (255), 21 states have internal predecessors, (255), 13 states have call successors, (41), 1 states have call predecessors, (41), 2 states have return successors, (42), 12 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-14 05:18:42,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:18:42,354 INFO L93 Difference]: Finished difference Result 2566 states and 3151 transitions. [2024-11-14 05:18:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-14 05:18:42,354 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 13.421052631578947) internal successors, (255), 21 states have internal predecessors, (255), 13 states have call successors, (41), 1 states have call predecessors, (41), 2 states have return successors, (42), 12 states have call predecessors, (42), 13 states have call successors, (42) Word has length 244 [2024-11-14 05:18:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:18:42,363 INFO L225 Difference]: With dead ends: 2566 [2024-11-14 05:18:42,363 INFO L226 Difference]: Without dead ends: 2560 [2024-11-14 05:18:42,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 433 SyntacticMatches, 19 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5133 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=1276, Invalid=10278, Unknown=2, NotChecked=0, Total=11556 [2024-11-14 05:18:42,367 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 787 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:18:42,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 461 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-14 05:18:42,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2560 states. [2024-11-14 05:18:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2560 to 2455. [2024-11-14 05:18:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2064 states have (on average 1.119186046511628) internal successors, (2310), 2083 states have internal predecessors, (2310), 340 states have call successors, (340), 39 states have call predecessors, (340), 39 states have return successors, (340), 332 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-14 05:18:42,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 2990 transitions. [2024-11-14 05:18:42,724 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 2990 transitions. Word has length 244 [2024-11-14 05:18:42,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:18:42,724 INFO L471 AbstractCegarLoop]: Abstraction has 2455 states and 2990 transitions. [2024-11-14 05:18:42,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 13.421052631578947) internal successors, (255), 21 states have internal predecessors, (255), 13 states have call successors, (41), 1 states have call predecessors, (41), 2 states have return successors, (42), 12 states have call predecessors, (42), 13 states have call successors, (42) [2024-11-14 05:18:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 2990 transitions. [2024-11-14 05:18:42,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-14 05:18:42,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:18:42,727 INFO L215 NwaCegarLoop]: trace histogram [30, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:18:42,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-14 05:18:42,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-14 05:18:42,931 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:18:42,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:18:42,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2036053662, now seen corresponding path program 1 times [2024-11-14 05:18:42,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:18:42,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090542233] [2024-11-14 05:18:42,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:42,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:18:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:18:43,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 168 proven. 126 refuted. 0 times theorem prover too weak. 1009 trivial. 0 not checked. [2024-11-14 05:18:43,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:18:43,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090542233] [2024-11-14 05:18:43,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090542233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:18:43,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149476457] [2024-11-14 05:18:43,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:18:43,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:18:43,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:18:43,121 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:18:43,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 05:18:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:18:43,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:18:43,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:18:43,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 686 proven. 48 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-14 05:18:43,420 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:18:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 238 proven. 48 refuted. 0 times theorem prover too weak. 1017 trivial. 0 not checked. [2024-11-14 05:18:43,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149476457] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:18:43,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1085318390] [2024-11-14 05:18:43,721 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:18:43,721 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:18:43,721 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:18:43,722 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:18:43,722 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:18,226 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:19:18,227 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:27,694 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '89617#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~r~0#1|) (exists ((|v_ULTIMATE.start_main_~b~0#1_317| Int)) (and (or (< ~counter~0 11) (and (= |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~r~0#1| (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= 0 (+ 9223372036854775808 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |v_ULTIMATE.start_main_~b~0#1_317|))) (<= 4611686018427387904 |v_ULTIMATE.start_main_~b~0#1_317|))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-14 05:19:27,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:19:27,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:27,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-11-14 05:19:27,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006674004] [2024-11-14 05:19:27,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:19:27,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 05:19:27,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:27,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 05:19:27,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=2036, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 05:19:27,696 INFO L87 Difference]: Start difference. First operand 2455 states and 2990 transitions. Second operand has 13 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 10 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 10 states have call predecessors, (38), 10 states have call successors, (38) [2024-11-14 05:19:30,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:30,391 INFO L93 Difference]: Finished difference Result 3686 states and 4526 transitions. [2024-11-14 05:19:30,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-14 05:19:30,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 10 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 10 states have call predecessors, (38), 10 states have call successors, (38) Word has length 247 [2024-11-14 05:19:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:30,398 INFO L225 Difference]: With dead ends: 3686 [2024-11-14 05:19:30,398 INFO L226 Difference]: Without dead ends: 2396 [2024-11-14 05:19:30,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 681 SyntacticMatches, 28 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2426 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=645, Invalid=5675, Unknown=0, NotChecked=0, Total=6320 [2024-11-14 05:19:30,402 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 513 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:30,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 865 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:19:30,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2024-11-14 05:19:30,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 1562. [2024-11-14 05:19:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1562 states, 1305 states have (on average 1.1111111111111112) internal successors, (1450), 1321 states have internal predecessors, (1450), 214 states have call successors, (214), 31 states have call predecessors, (214), 31 states have return successors, (214), 209 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-14 05:19:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1562 states to 1562 states and 1878 transitions. [2024-11-14 05:19:30,612 INFO L78 Accepts]: Start accepts. Automaton has 1562 states and 1878 transitions. Word has length 247 [2024-11-14 05:19:30,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:30,612 INFO L471 AbstractCegarLoop]: Abstraction has 1562 states and 1878 transitions. [2024-11-14 05:19:30,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 10 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 10 states have call predecessors, (38), 10 states have call successors, (38) [2024-11-14 05:19:30,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1562 states and 1878 transitions. [2024-11-14 05:19:30,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-14 05:19:30,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:30,615 INFO L215 NwaCegarLoop]: trace histogram [31, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:30,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-14 05:19:30,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-14 05:19:30,819 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:19:30,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:30,819 INFO L85 PathProgramCache]: Analyzing trace with hash 517274018, now seen corresponding path program 4 times [2024-11-14 05:19:30,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:30,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87482185] [2024-11-14 05:19:30,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:30,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:31,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 2 proven. 512 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-11-14 05:19:31,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:31,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87482185] [2024-11-14 05:19:31,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87482185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:31,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454952337] [2024-11-14 05:19:31,439 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:19:31,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:31,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:31,441 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:31,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 05:19:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:31,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:19:31,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 148 proven. 426 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-14 05:19:32,079 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:32,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 88 proven. 426 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-11-14 05:19:32,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454952337] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:32,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1844529758] [2024-11-14 05:19:32,612 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:19:32,612 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:32,612 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:32,612 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:32,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:20:00,310 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:20:00,311 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:20:09,701 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '97732#(exists ((|v_ULTIMATE.start_main_~b~0#1_348| Int) (|v_ULTIMATE.start_main_~r~0#1_248| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_348|) |v_ULTIMATE.start_main_~r~0#1_248|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-14 05:20:09,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:20:09,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:20:09,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 35 [2024-11-14 05:20:09,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686668371] [2024-11-14 05:20:09,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:20:09,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-14 05:20:09,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:09,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-14 05:20:09,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=4649, Unknown=0, NotChecked=0, Total=5112 [2024-11-14 05:20:09,704 INFO L87 Difference]: Start difference. First operand 1562 states and 1878 transitions. Second operand has 35 states, 35 states have (on average 10.914285714285715) internal successors, (382), 35 states have internal predecessors, (382), 21 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 21 states have call predecessors, (70), 21 states have call successors, (70) [2024-11-14 05:20:15,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:15,759 INFO L93 Difference]: Finished difference Result 3690 states and 4551 transitions. [2024-11-14 05:20:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-14 05:20:15,760 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 10.914285714285715) internal successors, (382), 35 states have internal predecessors, (382), 21 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 21 states have call predecessors, (70), 21 states have call successors, (70) Word has length 265 [2024-11-14 05:20:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:15,766 INFO L225 Difference]: With dead ends: 3690 [2024-11-14 05:20:15,770 INFO L226 Difference]: Without dead ends: 2702 [2024-11-14 05:20:15,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 722 SyntacticMatches, 32 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7438 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=1520, Invalid=17940, Unknown=0, NotChecked=0, Total=19460 [2024-11-14 05:20:15,774 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 804 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 4298 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 4467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 4298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:15,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1684 Invalid, 4467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 4298 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-14 05:20:15,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2024-11-14 05:20:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1905. [2024-11-14 05:20:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1595 states have (on average 1.1153605015673982) internal successors, (1779), 1611 states have internal predecessors, (1779), 266 states have call successors, (266), 32 states have call predecessors, (266), 32 states have return successors, (266), 261 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-14 05:20:16,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2311 transitions. [2024-11-14 05:20:16,049 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2311 transitions. Word has length 265 [2024-11-14 05:20:16,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:16,050 INFO L471 AbstractCegarLoop]: Abstraction has 1905 states and 2311 transitions. [2024-11-14 05:20:16,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 10.914285714285715) internal successors, (382), 35 states have internal predecessors, (382), 21 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 21 states have call predecessors, (70), 21 states have call successors, (70) [2024-11-14 05:20:16,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2311 transitions. [2024-11-14 05:20:16,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-14 05:20:16,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:16,053 INFO L215 NwaCegarLoop]: trace histogram [32, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2024-11-14 05:20:16,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 05:20:16,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:20:16,257 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:20:16,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:16,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2007620219, now seen corresponding path program 3 times [2024-11-14 05:20:16,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:16,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529743317] [2024-11-14 05:20:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:16,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:16,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 0 proven. 505 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-11-14 05:20:16,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:16,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529743317] [2024-11-14 05:20:16,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529743317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:20:16,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806980761] [2024-11-14 05:20:16,651 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:20:16,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:20:16,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:20:16,653 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:20:16,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 05:20:16,792 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:20:16,792 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:20:16,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 05:20:16,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:20:17,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 0 proven. 505 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-11-14 05:20:17,413 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:20:17,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 0 proven. 505 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-11-14 05:20:17,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806980761] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:20:17,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2014760746] [2024-11-14 05:20:17,973 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:20:17,974 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:20:17,974 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:20:17,974 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:20:17,974 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:20:41,373 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:20:41,374 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:20:47,649 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '106392#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~a~0#1_389| Int) (|v_ULTIMATE.start_main_~q~0#1_257| Int)) (<= 9223372036854775808 (+ |v_ULTIMATE.start_main_~a~0#1_389| |v_ULTIMATE.start_main_~q~0#1_257|))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 05:20:47,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:20:47,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:20:47,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 32 [2024-11-14 05:20:47,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794056859] [2024-11-14 05:20:47,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:20:47,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 05:20:47,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:47,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 05:20:47,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=674, Invalid=4156, Unknown=0, NotChecked=0, Total=4830 [2024-11-14 05:20:47,653 INFO L87 Difference]: Start difference. First operand 1905 states and 2311 transitions. Second operand has 33 states, 32 states have (on average 16.375) internal successors, (524), 33 states have internal predecessors, (524), 28 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 28 states have call predecessors, (92), 28 states have call successors, (92) [2024-11-14 05:20:50,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:50,036 INFO L93 Difference]: Finished difference Result 3773 states and 4628 transitions. [2024-11-14 05:20:50,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-14 05:20:50,037 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 16.375) internal successors, (524), 33 states have internal predecessors, (524), 28 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 28 states have call predecessors, (92), 28 states have call successors, (92) Word has length 277 [2024-11-14 05:20:50,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:50,047 INFO L225 Difference]: With dead ends: 3773 [2024-11-14 05:20:50,048 INFO L226 Difference]: Without dead ends: 3772 [2024-11-14 05:20:50,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 862 GetRequests, 750 SyntacticMatches, 23 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5547 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1328, Invalid=6862, Unknown=0, NotChecked=0, Total=8190 [2024-11-14 05:20:50,049 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 1568 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:50,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1585 Valid, 876 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 05:20:50,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2024-11-14 05:20:50,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 2993. [2024-11-14 05:20:50,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2523 states have (on average 1.1169242964724535) internal successors, (2818), 2538 states have internal predecessors, (2818), 426 states have call successors, (426), 32 states have call predecessors, (426), 32 states have return successors, (426), 422 states have call predecessors, (426), 426 states have call successors, (426) [2024-11-14 05:20:50,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 3670 transitions. [2024-11-14 05:20:50,528 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 3670 transitions. Word has length 277 [2024-11-14 05:20:50,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:50,529 INFO L471 AbstractCegarLoop]: Abstraction has 2993 states and 3670 transitions. [2024-11-14 05:20:50,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 16.375) internal successors, (524), 33 states have internal predecessors, (524), 28 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 28 states have call predecessors, (92), 28 states have call successors, (92) [2024-11-14 05:20:50,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 3670 transitions. [2024-11-14 05:20:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-14 05:20:50,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:50,531 INFO L215 NwaCegarLoop]: trace histogram [33, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:20:50,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-14 05:20:50,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-14 05:20:50,731 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:20:50,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:50,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1242105351, now seen corresponding path program 2 times [2024-11-14 05:20:50,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:50,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325883757] [2024-11-14 05:20:50,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:50,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:51,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1696 backedges. 0 proven. 640 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2024-11-14 05:20:51,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:51,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325883757] [2024-11-14 05:20:51,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325883757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:20:51,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836153505] [2024-11-14 05:20:51,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:20:51,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:20:51,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:20:51,282 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:20:51,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 05:20:51,352 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-14 05:20:51,352 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:20:51,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:20:51,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:20:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1696 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 1422 trivial. 0 not checked. [2024-11-14 05:20:51,463 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:20:51,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836153505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:20:51,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:20:51,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [22] total 25 [2024-11-14 05:20:51,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199047248] [2024-11-14 05:20:51,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:20:51,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:20:51,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:51,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:20:51,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-11-14 05:20:51,465 INFO L87 Difference]: Start difference. First operand 2993 states and 3670 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:20:51,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:51,949 INFO L93 Difference]: Finished difference Result 3068 states and 3756 transitions. [2024-11-14 05:20:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:20:51,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 278 [2024-11-14 05:20:51,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:51,957 INFO L225 Difference]: With dead ends: 3068 [2024-11-14 05:20:51,957 INFO L226 Difference]: Without dead ends: 3067 [2024-11-14 05:20:51,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:20:51,959 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 24 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:51,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 193 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:20:51,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3067 states. [2024-11-14 05:20:52,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3067 to 2993. [2024-11-14 05:20:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2523 states have (on average 1.1157352358303607) internal successors, (2815), 2538 states have internal predecessors, (2815), 426 states have call successors, (426), 32 states have call predecessors, (426), 32 states have return successors, (426), 422 states have call predecessors, (426), 426 states have call successors, (426) [2024-11-14 05:20:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 3667 transitions. [2024-11-14 05:20:52,471 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 3667 transitions. Word has length 278 [2024-11-14 05:20:52,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:52,472 INFO L471 AbstractCegarLoop]: Abstraction has 2993 states and 3667 transitions. [2024-11-14 05:20:52,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-14 05:20:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 3667 transitions. [2024-11-14 05:20:52,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-14 05:20:52,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:52,474 INFO L215 NwaCegarLoop]: trace histogram [32, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-14 05:20:52,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-14 05:20:52,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-14 05:20:52,679 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:20:52,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:52,679 INFO L85 PathProgramCache]: Analyzing trace with hash 434995554, now seen corresponding path program 1 times [2024-11-14 05:20:52,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:52,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474764941] [2024-11-14 05:20:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:52,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:20:52,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013217751] [2024-11-14 05:20:52,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:52,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:20:52,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:20:52,721 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:20:52,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 05:20:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:20:52,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:20:52,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:20:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1509 backedges. 0 proven. 517 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-11-14 05:20:54,207 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:20:54,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:20:54,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474764941] [2024-11-14 05:20:54,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:20:54,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013217751] [2024-11-14 05:20:54,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013217751] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:20:54,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1042699686] [2024-11-14 05:20:54,689 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 05:20:54,689 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:20:54,689 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:20:54,689 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:20:54,689 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:21:19,344 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:21:19,345 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:21:26,194 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '123764#(and (exists ((|v_ULTIMATE.start_main_~y~0#1_80| Int) (|v_ULTIMATE.start_main_~q~0#1_275| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_275| |v_ULTIMATE.start_main_~y~0#1_80|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_80|) (<= |v_ULTIMATE.start_main_~y~0#1_80| 2147483647) (<= |v_ULTIMATE.start_main_~q~0#1_275| 9223372036854775807))) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 ~counter~0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 05:21:26,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:21:26,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:21:26,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-14 05:21:26,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913666028] [2024-11-14 05:21:26,194 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:21:26,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 05:21:26,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:26,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 05:21:26,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=462, Invalid=2730, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 05:21:26,196 INFO L87 Difference]: Start difference. First operand 2993 states and 3667 transitions. Second operand has 15 states, 14 states have (on average 13.428571428571429) internal successors, (188), 15 states have internal predecessors, (188), 11 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-14 05:21:27,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:27,120 INFO L93 Difference]: Finished difference Result 3037 states and 3714 transitions. [2024-11-14 05:21:27,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 05:21:27,121 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 13.428571428571429) internal successors, (188), 15 states have internal predecessors, (188), 11 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) Word has length 283 [2024-11-14 05:21:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:27,130 INFO L225 Difference]: With dead ends: 3037 [2024-11-14 05:21:27,130 INFO L226 Difference]: Without dead ends: 3035 [2024-11-14 05:21:27,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 503 SyntacticMatches, 23 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2511 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=474, Invalid=2832, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 05:21:27,131 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 182 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:27,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 461 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:21:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3035 states. [2024-11-14 05:21:27,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3035 to 2995. [2024-11-14 05:21:27,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2525 states have (on average 1.1152475247524753) internal successors, (2816), 2540 states have internal predecessors, (2816), 426 states have call successors, (426), 32 states have call predecessors, (426), 32 states have return successors, (426), 422 states have call predecessors, (426), 426 states have call successors, (426) [2024-11-14 05:21:27,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 3668 transitions. [2024-11-14 05:21:27,629 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 3668 transitions. Word has length 283 [2024-11-14 05:21:27,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:27,629 INFO L471 AbstractCegarLoop]: Abstraction has 2995 states and 3668 transitions. [2024-11-14 05:21:27,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 13.428571428571429) internal successors, (188), 15 states have internal predecessors, (188), 11 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-14 05:21:27,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 3668 transitions. [2024-11-14 05:21:27,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-14 05:21:27,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:27,632 INFO L215 NwaCegarLoop]: trace histogram [32, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2024-11-14 05:21:27,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-14 05:21:27,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-14 05:21:27,832 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:21:27,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:27,832 INFO L85 PathProgramCache]: Analyzing trace with hash 434994692, now seen corresponding path program 1 times [2024-11-14 05:21:27,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:27,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869169097] [2024-11-14 05:21:27,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:27,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 1482 trivial. 0 not checked. [2024-11-14 05:21:27,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:27,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869169097] [2024-11-14 05:21:27,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869169097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:21:27,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:21:27,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:21:27,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160394396] [2024-11-14 05:21:27,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:21:27,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:21:27,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:21:27,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:21:27,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:21:27,953 INFO L87 Difference]: Start difference. First operand 2995 states and 3668 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 05:21:28,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:21:28,352 INFO L93 Difference]: Finished difference Result 3155 states and 3847 transitions. [2024-11-14 05:21:28,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:21:28,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 283 [2024-11-14 05:21:28,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:21:28,358 INFO L225 Difference]: With dead ends: 3155 [2024-11-14 05:21:28,359 INFO L226 Difference]: Without dead ends: 1624 [2024-11-14 05:21:28,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:21:28,362 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 11 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:21:28,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 215 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:21:28,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2024-11-14 05:21:28,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1371. [2024-11-14 05:21:28,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1146 states have (on average 1.0514834205933683) internal successors, (1205), 1153 states have internal predecessors, (1205), 193 states have call successors, (193), 26 states have call predecessors, (193), 26 states have return successors, (193), 191 states have call predecessors, (193), 193 states have call successors, (193) [2024-11-14 05:21:28,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1591 transitions. [2024-11-14 05:21:28,680 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1591 transitions. Word has length 283 [2024-11-14 05:21:28,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:21:28,681 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 1591 transitions. [2024-11-14 05:21:28,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 05:21:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1591 transitions. [2024-11-14 05:21:28,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-14 05:21:28,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:28,684 INFO L215 NwaCegarLoop]: trace histogram [32, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-14 05:21:28,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-14 05:21:28,684 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:21:28,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:28,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1523106832, now seen corresponding path program 2 times [2024-11-14 05:21:28,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:28,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505965381] [2024-11-14 05:21:28,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:28,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:21:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:21:28,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118665038] [2024-11-14 05:21:28,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:21:28,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:28,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:28,725 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:28,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-14 05:21:28,871 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 05:21:28,871 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:21:28,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:21:28,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1509 backedges. 31 proven. 50 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2024-11-14 05:21:30,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:21:31,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:31,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505965381] [2024-11-14 05:21:31,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:21:31,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118665038] [2024-11-14 05:21:31,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118665038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:21:31,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [117468729] [2024-11-14 05:21:31,092 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 05:21:31,092 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:21:31,092 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:21:31,092 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:21:31,092 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:21:57,851 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:21:57,853 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:08,321 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '137539#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 ~counter~0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (exists ((|v_ULTIMATE.start_main_~q~0#1_293| Int) (|v_ULTIMATE.start_main_~y~0#1_83| Int)) (and (<= 1 |v_ULTIMATE.start_main_~y~0#1_83|) (<= |v_ULTIMATE.start_main_~q~0#1_293| 9223372036854775807) (<= |v_ULTIMATE.start_main_~y~0#1_83| 2147483647) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_293| |v_ULTIMATE.start_main_~y~0#1_83|)))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 05:22:08,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:22:08,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:22:08,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-14 05:22:08,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828487782] [2024-11-14 05:22:08,322 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:22:08,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 05:22:08,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:08,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 05:22:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1987, Unknown=0, NotChecked=0, Total=2450 [2024-11-14 05:22:08,323 INFO L87 Difference]: Start difference. First operand 1371 states and 1591 transitions. Second operand has 7 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 05:22:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:09,371 INFO L93 Difference]: Finished difference Result 1384 states and 1604 transitions. [2024-11-14 05:22:09,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:22:09,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 283 [2024-11-14 05:22:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:09,375 INFO L225 Difference]: With dead ends: 1384 [2024-11-14 05:22:09,375 INFO L226 Difference]: Without dead ends: 1382 [2024-11-14 05:22:09,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 510 SyntacticMatches, 23 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1629 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=527, Invalid=2443, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 05:22:09,377 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 126 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:09,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 96 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:22:09,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2024-11-14 05:22:09,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 989. [2024-11-14 05:22:09,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 821 states have (on average 1.0475030450669915) internal successors, (860), 828 states have internal predecessors, (860), 137 states have call successors, (137), 26 states have call predecessors, (137), 26 states have return successors, (137), 134 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-14 05:22:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1134 transitions. [2024-11-14 05:22:09,661 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1134 transitions. Word has length 283 [2024-11-14 05:22:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:09,662 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1134 transitions. [2024-11-14 05:22:09,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 05:22:09,662 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1134 transitions. [2024-11-14 05:22:09,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-14 05:22:09,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:09,664 INFO L215 NwaCegarLoop]: trace histogram [32, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:09,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-14 05:22:09,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-14 05:22:09,865 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:22:09,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:09,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1418904324, now seen corresponding path program 1 times [2024-11-14 05:22:09,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:09,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993807653] [2024-11-14 05:22:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:09,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:22:09,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957631256] [2024-11-14 05:22:09,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:09,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:09,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:09,915 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:09,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-14 05:22:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:10,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-14 05:22:10,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:11,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1509 backedges. 0 proven. 517 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-11-14 05:22:11,720 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:22:21,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:21,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993807653] [2024-11-14 05:22:21,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:22:21,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957631256] [2024-11-14 05:22:21,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957631256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:22:21,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1811485535] [2024-11-14 05:22:21,252 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-14 05:22:21,252 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:22:21,252 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:22:21,252 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:22:21,252 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:22:46,457 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:22:46,458 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:55,623 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '142203#(and (<= 11 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= ~counter~0 2147483647) (exists ((|v_ULTIMATE.start_main_~q~0#1_313| Int) (|v_ULTIMATE.start_main_~y~0#1_84| Int)) (and (<= |v_ULTIMATE.start_main_~y~0#1_84| 2147483647) (<= 1 (* |v_ULTIMATE.start_main_~q~0#1_313| |v_ULTIMATE.start_main_~y~0#1_84|)) (<= 1 |v_ULTIMATE.start_main_~y~0#1_84|) (<= (* |v_ULTIMATE.start_main_~q~0#1_313| |v_ULTIMATE.start_main_~y~0#1_84|) 9223372036854775807))))' at error location [2024-11-14 05:22:55,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:22:55,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:22:55,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-11-14 05:22:55,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083087613] [2024-11-14 05:22:55,624 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:22:55,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:22:55,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:55,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:22:55,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=456, Invalid=5090, Unknown=4, NotChecked=0, Total=5550 [2024-11-14 05:22:55,625 INFO L87 Difference]: Start difference. First operand 989 states and 1134 transitions. Second operand has 22 states, 21 states have (on average 9.047619047619047) internal successors, (190), 22 states have internal predecessors, (190), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-11-14 05:22:57,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:57,502 INFO L93 Difference]: Finished difference Result 1070 states and 1224 transitions. [2024-11-14 05:22:57,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-14 05:22:57,503 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.047619047619047) internal successors, (190), 22 states have internal predecessors, (190), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) Word has length 285 [2024-11-14 05:22:57,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:57,507 INFO L225 Difference]: With dead ends: 1070 [2024-11-14 05:22:57,507 INFO L226 Difference]: Without dead ends: 1057 [2024-11-14 05:22:57,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 754 SyntacticMatches, 11 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2202 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=456, Invalid=5090, Unknown=4, NotChecked=0, Total=5550 [2024-11-14 05:22:57,509 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 80 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 3265 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 3269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:57,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1516 Invalid, 3269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3265 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:22:57,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2024-11-14 05:22:57,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1013. [2024-11-14 05:22:57,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 843 states have (on average 1.0462633451957295) internal successors, (882), 849 states have internal predecessors, (882), 139 states have call successors, (139), 26 states have call predecessors, (139), 26 states have return successors, (139), 137 states have call predecessors, (139), 139 states have call successors, (139) [2024-11-14 05:22:57,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1160 transitions. [2024-11-14 05:22:57,705 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1160 transitions. Word has length 285 [2024-11-14 05:22:57,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:57,706 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1160 transitions. [2024-11-14 05:22:57,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.047619047619047) internal successors, (190), 22 states have internal predecessors, (190), 10 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 10 states have call predecessors, (32), 10 states have call successors, (32) [2024-11-14 05:22:57,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1160 transitions. [2024-11-14 05:22:57,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-14 05:22:57,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:57,708 INFO L215 NwaCegarLoop]: trace histogram [32, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:57,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-14 05:22:57,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-14 05:22:57,908 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:22:57,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:57,909 INFO L85 PathProgramCache]: Analyzing trace with hash 878187026, now seen corresponding path program 2 times [2024-11-14 05:22:57,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:57,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74889153] [2024-11-14 05:22:57,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:57,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:22:57,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813034129] [2024-11-14 05:22:57,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:22:57,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:57,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:57,945 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:57,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-14 05:22:58,020 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 05:22:58,020 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:22:58,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:22:58,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:22:58,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1509 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1457 trivial. 0 not checked. [2024-11-14 05:22:58,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:22:58,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:58,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74889153] [2024-11-14 05:22:58,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:22:58,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813034129] [2024-11-14 05:22:58,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813034129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:58,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:58,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:22:58,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720745625] [2024-11-14 05:22:58,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:58,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:22:58,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:58,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:22:58,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:22:58,126 INFO L87 Difference]: Start difference. First operand 1013 states and 1160 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:22:58,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:58,527 INFO L93 Difference]: Finished difference Result 1016 states and 1162 transitions. [2024-11-14 05:22:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:22:58,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 285 [2024-11-14 05:22:58,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:58,531 INFO L225 Difference]: With dead ends: 1016 [2024-11-14 05:22:58,532 INFO L226 Difference]: Without dead ends: 970 [2024-11-14 05:22:58,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:22:58,532 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 47 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:58,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 81 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:22:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2024-11-14 05:22:58,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 941. [2024-11-14 05:22:58,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 778 states have (on average 1.038560411311054) internal successors, (808), 786 states have internal predecessors, (808), 132 states have call successors, (132), 26 states have call predecessors, (132), 26 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-14 05:22:58,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1072 transitions. [2024-11-14 05:22:58,774 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1072 transitions. Word has length 285 [2024-11-14 05:22:58,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:58,774 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1072 transitions. [2024-11-14 05:22:58,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:22:58,774 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1072 transitions. [2024-11-14 05:22:58,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-11-14 05:22:58,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:58,777 INFO L215 NwaCegarLoop]: trace histogram [35, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:58,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-14 05:22:58,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-14 05:22:58,978 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:22:58,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1124113103, now seen corresponding path program 5 times [2024-11-14 05:22:58,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:58,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343383334] [2024-11-14 05:22:58,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:58,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1874 backedges. 0 proven. 684 refuted. 0 times theorem prover too weak. 1190 trivial. 0 not checked. [2024-11-14 05:22:59,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:59,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343383334] [2024-11-14 05:22:59,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343383334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:22:59,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262743035] [2024-11-14 05:22:59,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:22:59,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:22:59,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:22:59,453 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:22:59,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-14 05:22:59,590 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-14 05:22:59,591 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:22:59,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 05:22:59,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1874 backedges. 100 proven. 370 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-14 05:23:00,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:00,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1874 backedges. 0 proven. 470 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-14 05:23:00,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262743035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:00,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [475864424] [2024-11-14 05:23:00,979 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-14 05:23:00,980 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:00,980 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:00,980 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:00,980 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:25,978 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:23:25,979 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:36,749 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '149913#(exists ((|v_ULTIMATE.start_main_~b~0#1_469| Int) (|v_ULTIMATE.start_main_~r~0#1_331| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_469|) |v_ULTIMATE.start_main_~r~0#1_331|) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)))' at error location [2024-11-14 05:23:36,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:23:36,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:36,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 27 [2024-11-14 05:23:36,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391274142] [2024-11-14 05:23:36,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:36,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 05:23:36,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:36,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 05:23:36,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=3719, Unknown=0, NotChecked=0, Total=4160 [2024-11-14 05:23:36,752 INFO L87 Difference]: Start difference. First operand 941 states and 1072 transitions. Second operand has 28 states, 27 states have (on average 15.925925925925926) internal successors, (430), 28 states have internal predecessors, (430), 20 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 20 states have call predecessors, (75), 20 states have call successors, (75) [2024-11-14 05:23:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:39,946 INFO L93 Difference]: Finished difference Result 1162 states and 1323 transitions. [2024-11-14 05:23:39,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-14 05:23:39,946 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 15.925925925925926) internal successors, (430), 28 states have internal predecessors, (430), 20 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 20 states have call predecessors, (75), 20 states have call successors, (75) Word has length 298 [2024-11-14 05:23:39,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:39,949 INFO L225 Difference]: With dead ends: 1162 [2024-11-14 05:23:39,949 INFO L226 Difference]: Without dead ends: 1161 [2024-11-14 05:23:39,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 812 SyntacticMatches, 30 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4020 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=1304, Invalid=8596, Unknown=0, NotChecked=0, Total=9900 [2024-11-14 05:23:39,950 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 1871 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:39,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 1555 Invalid, 2432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 05:23:39,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-11-14 05:23:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 771. [2024-11-14 05:23:40,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 636 states have (on average 1.0267295597484276) internal successors, (653), 642 states have internal predecessors, (653), 106 states have call successors, (106), 25 states have call predecessors, (106), 25 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-14 05:23:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 865 transitions. [2024-11-14 05:23:40,106 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 865 transitions. Word has length 298 [2024-11-14 05:23:40,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:40,106 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 865 transitions. [2024-11-14 05:23:40,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 15.925925925925926) internal successors, (430), 28 states have internal predecessors, (430), 20 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 20 states have call predecessors, (75), 20 states have call successors, (75) [2024-11-14 05:23:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 865 transitions. [2024-11-14 05:23:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-14 05:23:40,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:40,108 INFO L215 NwaCegarLoop]: trace histogram [35, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:40,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-14 05:23:40,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:40,309 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:23:40,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1963018906, now seen corresponding path program 3 times [2024-11-14 05:23:40,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:40,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541144530] [2024-11-14 05:23:40,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:40,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:23:40,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382785429] [2024-11-14 05:23:40,342 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:23:40,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:40,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:40,344 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:40,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-14 05:23:40,492 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:23:40,492 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:23:40,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:23:40,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:41,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1884 backedges. 0 proven. 694 refuted. 0 times theorem prover too weak. 1190 trivial. 0 not checked. [2024-11-14 05:23:41,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:42,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:42,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541144530] [2024-11-14 05:23:42,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:23:42,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382785429] [2024-11-14 05:23:42,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382785429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:42,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [788417138] [2024-11-14 05:23:42,158 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 05:23:42,158 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:42,159 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:42,159 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:42,159 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:06,378 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:24:06,379 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:24:14,032 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '153393#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~y~0#1_85| Int) (|v_ULTIMATE.start_main_~q~0#1_345| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_345| |v_ULTIMATE.start_main_~y~0#1_85|)) (<= |v_ULTIMATE.start_main_~q~0#1_345| 9223372036854775807) (<= |v_ULTIMATE.start_main_~y~0#1_85| 2147483647) (<= 1 |v_ULTIMATE.start_main_~y~0#1_85|))) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 ~counter~0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1|)) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 05:24:14,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:24:14,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:24:14,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-14 05:24:14,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862829347] [2024-11-14 05:24:14,032 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 05:24:14,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 05:24:14,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:14,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 05:24:14,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=429, Invalid=2763, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 05:24:14,034 INFO L87 Difference]: Start difference. First operand 771 states and 865 transitions. Second operand has 15 states, 14 states have (on average 14.428571428571429) internal successors, (202), 15 states have internal predecessors, (202), 11 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 11 states have call predecessors, (35), 11 states have call successors, (35) [2024-11-14 05:24:14,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:14,864 INFO L93 Difference]: Finished difference Result 1036 states and 1174 transitions. [2024-11-14 05:24:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 05:24:14,864 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 14.428571428571429) internal successors, (202), 15 states have internal predecessors, (202), 11 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 11 states have call predecessors, (35), 11 states have call successors, (35) Word has length 306 [2024-11-14 05:24:14,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:14,866 INFO L225 Difference]: With dead ends: 1036 [2024-11-14 05:24:14,866 INFO L226 Difference]: Without dead ends: 1035 [2024-11-14 05:24:14,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 545 SyntacticMatches, 30 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3160 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=560, Invalid=3730, Unknown=0, NotChecked=0, Total=4290 [2024-11-14 05:24:14,867 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 405 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:14,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 524 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:24:14,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-14 05:24:15,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 806. [2024-11-14 05:24:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 667 states have (on average 1.0284857571214392) internal successors, (686), 673 states have internal predecessors, (686), 110 states have call successors, (110), 25 states have call predecessors, (110), 25 states have return successors, (110), 107 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-14 05:24:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 906 transitions. [2024-11-14 05:24:15,113 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 906 transitions. Word has length 306 [2024-11-14 05:24:15,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:15,113 INFO L471 AbstractCegarLoop]: Abstraction has 806 states and 906 transitions. [2024-11-14 05:24:15,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 14.428571428571429) internal successors, (202), 15 states have internal predecessors, (202), 11 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 11 states have call predecessors, (35), 11 states have call successors, (35) [2024-11-14 05:24:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 906 transitions. [2024-11-14 05:24:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-14 05:24:15,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:15,116 INFO L215 NwaCegarLoop]: trace histogram [35, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:15,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:15,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:15,317 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-14 05:24:15,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1016447320, now seen corresponding path program 4 times [2024-11-14 05:24:15,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:15,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861949607] [2024-11-14 05:24:15,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:15,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:24:15,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579453445] [2024-11-14 05:24:15,355 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:24:15,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:15,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:15,358 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:15,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adb3352b-1737-4ee6-8feb-8eacf8f8f6c8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-14 05:24:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:15,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:24:15,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1884 backedges. 0 proven. 694 refuted. 0 times theorem prover too weak. 1190 trivial. 0 not checked. [2024-11-14 05:24:16,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:17,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:17,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861949607] [2024-11-14 05:24:17,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:17,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579453445] [2024-11-14 05:24:17,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579453445] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:24:17,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1282097760] [2024-11-14 05:24:17,408 INFO L159 IcfgInterpreter]: Started Sifa with 48 locations of interest [2024-11-14 05:24:17,408 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:17,408 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:17,408 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:17,408 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:40,738 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 8 for LOIs [2024-11-14 05:24:40,739 INFO L180 IcfgInterpreter]: Interpretation finished