./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.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_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/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_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/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_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/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 aefc568e9b7c922872a103ac050823e614044aea4bac2f22f2c586f3247176b4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:44:14,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:44:14,434 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 02:44:14,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:44:14,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:44:14,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:44:14,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:44:14,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:44:14,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:44:14,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:44:14,516 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:44:14,517 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:44:14,517 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:44:14,518 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:44:14,518 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:44:14,519 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:44:14,519 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:44:14,519 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:44:14,519 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:44:14,519 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:44:14,520 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:44:14,520 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:44:14,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:44:14,521 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:44:14,521 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:44:14,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:44:14,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:44:14,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:44:14,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:44:14,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:44:14,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:44:14,522 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:44:14,522 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 02:44:14,523 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 02:44:14,524 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:44:14,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:44:14,525 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:44:14,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:44:14,525 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:44:14,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:44:14,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:44:14,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:44:14,526 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:44:14,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:44:14,527 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:44:14,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:44:14,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:44:14,527 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:44:14,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:44:14,528 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_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/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 -> aefc568e9b7c922872a103ac050823e614044aea4bac2f22f2c586f3247176b4 [2024-11-14 02:44:15,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:44:15,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:44:15,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:44:15,059 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:44:15,060 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:44:15,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c Unable to find full path for "g++" [2024-11-14 02:44:17,848 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:44:18,170 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:44:18,173 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound50.c [2024-11-14 02:44:18,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/data/5492020c3/5d59a2ec2fc8482e91d43e8a21ea8fba/FLAG143e60b5b [2024-11-14 02:44:18,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/data/5492020c3/5d59a2ec2fc8482e91d43e8a21ea8fba [2024-11-14 02:44:18,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:44:18,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:44:18,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:44:18,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:44:18,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:44:18,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698dff27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18, skipping insertion in model container [2024-11-14 02:44:18,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,268 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:44:18,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:44:18,563 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:44:18,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:44:18,627 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:44:18,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18 WrapperNode [2024-11-14 02:44:18,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:44:18,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:44:18,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:44:18,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:44:18,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,688 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-11-14 02:44:18,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:44:18,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:44:18,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:44:18,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:44:18,710 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:44:18,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:44:18,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:44:18,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:44:18,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (1/1) ... [2024-11-14 02:44:18,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:44:18,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:18,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:44:18,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:44:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:44:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:44:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:44:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:44:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 02:44:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 02:44:18,953 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:44:18,957 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:44:19,711 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-14 02:44:19,711 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:44:19,804 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:44:19,805 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 02:44:19,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:44:19 BoogieIcfgContainer [2024-11-14 02:44:19,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:44:19,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:44:19,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:44:19,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:44:19,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:44:18" (1/3) ... [2024-11-14 02:44:19,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5852b6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:44:19, skipping insertion in model container [2024-11-14 02:44:19,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:44:18" (2/3) ... [2024-11-14 02:44:19,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5852b6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:44:19, skipping insertion in model container [2024-11-14 02:44:19,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:44:19" (3/3) ... [2024-11-14 02:44:19,823 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_unwindbound50.c [2024-11-14 02:44:19,846 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:44:19,848 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-ll_unwindbound50.c that has 2 procedures, 75 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2024-11-14 02:44:19,931 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:44:19,954 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;@77346589, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:44:19,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-14 02:44:19,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 66 states have internal predecessors, (73), 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 02:44:19,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 02:44:19,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:19,970 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 02:44:19,970 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:19,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:19,980 INFO L85 PathProgramCache]: Analyzing trace with hash 176280, now seen corresponding path program 1 times [2024-11-14 02:44:19,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:19,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844332864] [2024-11-14 02:44:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:19,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:20,313 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 02:44:20,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:20,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844332864] [2024-11-14 02:44:20,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844332864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:20,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:20,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:44:20,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211556808] [2024-11-14 02:44:20,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:20,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:44:20,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:20,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:44:20,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:44:20,350 INFO L87 Difference]: Start difference. First operand has 75 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 66 states have internal predecessors, (73), 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 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 02:44:20,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:20,477 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2024-11-14 02:44:20,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:44:20,482 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 02:44:20,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:20,490 INFO L225 Difference]: With dead ends: 133 [2024-11-14 02:44:20,490 INFO L226 Difference]: Without dead ends: 75 [2024-11-14 02:44:20,494 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 02:44:20,497 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 4 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:20,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 230 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:44:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-14 02:44:20,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-14 02:44:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 41 states have (on average 1.7804878048780488) internal successors, (73), 68 states have internal predecessors, (73), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 02:44:20,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2024-11-14 02:44:20,585 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 3 [2024-11-14 02:44:20,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:20,587 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2024-11-14 02:44:20,588 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 02:44:20,588 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2024-11-14 02:44:20,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 02:44:20,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:20,590 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:20,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:44:20,590 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:20,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:20,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1635513769, now seen corresponding path program 1 times [2024-11-14 02:44:20,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:20,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061810545] [2024-11-14 02:44:20,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:20,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:44:20,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226955176] [2024-11-14 02:44:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:20,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:20,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:20,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:20,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:44:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:20,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:44:20,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:20,875 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 02:44:20,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:44:20,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:20,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061810545] [2024-11-14 02:44:20,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:44:20,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226955176] [2024-11-14 02:44:20,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226955176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:20,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:20,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:44:20,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646092784] [2024-11-14 02:44:20,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:20,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:44:20,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:20,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:44:20,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:20,882 INFO L87 Difference]: Start difference. First operand 75 states and 83 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 02:44:21,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:21,044 INFO L93 Difference]: Finished difference Result 162 states and 186 transitions. [2024-11-14 02:44:21,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:44:21,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 12 [2024-11-14 02:44:21,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:21,047 INFO L225 Difference]: With dead ends: 162 [2024-11-14 02:44:21,047 INFO L226 Difference]: Without dead ends: 110 [2024-11-14 02:44:21,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 02:44:21,049 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:21,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 114 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:44:21,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-14 02:44:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2024-11-14 02:44:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 86 states have internal predecessors, (101), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 02:44:21,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 121 transitions. [2024-11-14 02:44:21,070 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 121 transitions. Word has length 12 [2024-11-14 02:44:21,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:21,075 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 121 transitions. [2024-11-14 02:44:21,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 02:44:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2024-11-14 02:44:21,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 02:44:21,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:21,076 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:21,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 02:44:21,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-14 02:44:21,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:21,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash 273312529, now seen corresponding path program 1 times [2024-11-14 02:44:21,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:21,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242270003] [2024-11-14 02:44:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:21,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:21,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:21,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242270003] [2024-11-14 02:44:21,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242270003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:21,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:21,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:44:21,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799503951] [2024-11-14 02:44:21,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:21,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:44:21,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:21,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:44:21,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:21,455 INFO L87 Difference]: Start difference. First operand 98 states and 121 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:21,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:21,559 INFO L93 Difference]: Finished difference Result 126 states and 157 transitions. [2024-11-14 02:44:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:44:21,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2024-11-14 02:44:21,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:21,561 INFO L225 Difference]: With dead ends: 126 [2024-11-14 02:44:21,561 INFO L226 Difference]: Without dead ends: 124 [2024-11-14 02:44:21,561 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 02:44:21,562 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 36 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:21,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 97 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:44:21,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-14 02:44:21,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 111. [2024-11-14 02:44:21,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 71 states have (on average 1.704225352112676) internal successors, (121), 97 states have internal predecessors, (121), 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 02:44:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2024-11-14 02:44:21,585 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 18 [2024-11-14 02:44:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:21,585 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2024-11-14 02:44:21,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2024-11-14 02:44:21,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 02:44:21,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:21,586 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:21,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:44:21,586 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:21,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:21,587 INFO L85 PathProgramCache]: Analyzing trace with hash -117247663, now seen corresponding path program 1 times [2024-11-14 02:44:21,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:21,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602039995] [2024-11-14 02:44:21,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:21,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:21,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:21,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602039995] [2024-11-14 02:44:21,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602039995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:21,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:21,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:44:21,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908746007] [2024-11-14 02:44:21,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:21,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:44:21,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:21,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:44:21,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:44:21,786 INFO L87 Difference]: Start difference. First operand 111 states and 145 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:21,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:21,992 INFO L93 Difference]: Finished difference Result 133 states and 158 transitions. [2024-11-14 02:44:21,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 02:44:21,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2024-11-14 02:44:21,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:21,994 INFO L225 Difference]: With dead ends: 133 [2024-11-14 02:44:21,994 INFO L226 Difference]: Without dead ends: 132 [2024-11-14 02:44:21,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:44:21,996 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 45 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:21,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 353 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:44:21,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-14 02:44:22,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 113. [2024-11-14 02:44:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.6805555555555556) internal successors, (121), 98 states have internal predecessors, (121), 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 02:44:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 145 transitions. [2024-11-14 02:44:22,012 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 145 transitions. Word has length 19 [2024-11-14 02:44:22,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:22,012 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 145 transitions. [2024-11-14 02:44:22,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:22,013 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 145 transitions. [2024-11-14 02:44:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 02:44:22,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:22,013 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:22,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 02:44:22,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:22,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:22,014 INFO L85 PathProgramCache]: Analyzing trace with hash -117246125, now seen corresponding path program 1 times [2024-11-14 02:44:22,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:22,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182619248] [2024-11-14 02:44:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:22,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:22,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:22,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182619248] [2024-11-14 02:44:22,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182619248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:22,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:22,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:44:22,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435660024] [2024-11-14 02:44:22,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:22,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:44:22,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:22,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:44:22,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:22,139 INFO L87 Difference]: Start difference. First operand 113 states and 145 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:22,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:22,268 INFO L93 Difference]: Finished difference Result 123 states and 152 transitions. [2024-11-14 02:44:22,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:44:22,269 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2024-11-14 02:44:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:22,270 INFO L225 Difference]: With dead ends: 123 [2024-11-14 02:44:22,270 INFO L226 Difference]: Without dead ends: 122 [2024-11-14 02:44:22,271 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 02:44:22,272 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 21 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:22,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 119 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:44:22,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-14 02:44:22,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2024-11-14 02:44:22,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.6666666666666667) internal successors, (120), 98 states have internal predecessors, (120), 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 02:44:22,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 144 transitions. [2024-11-14 02:44:22,297 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 144 transitions. Word has length 19 [2024-11-14 02:44:22,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:22,300 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 144 transitions. [2024-11-14 02:44:22,301 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:22,301 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 144 transitions. [2024-11-14 02:44:22,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 02:44:22,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:22,302 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:22,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 02:44:22,302 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:22,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:22,303 INFO L85 PathProgramCache]: Analyzing trace with hash 660289825, now seen corresponding path program 1 times [2024-11-14 02:44:22,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:22,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967474293] [2024-11-14 02:44:22,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:22,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:22,450 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:22,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:22,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967474293] [2024-11-14 02:44:22,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967474293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:22,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:22,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 02:44:22,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780736859] [2024-11-14 02:44:22,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:22,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:44:22,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:22,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:44:22,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:44:22,452 INFO L87 Difference]: Start difference. First operand 113 states and 144 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:22,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:22,580 INFO L93 Difference]: Finished difference Result 129 states and 157 transitions. [2024-11-14 02:44:22,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:44:22,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-11-14 02:44:22,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:22,582 INFO L225 Difference]: With dead ends: 129 [2024-11-14 02:44:22,582 INFO L226 Difference]: Without dead ends: 120 [2024-11-14 02:44:22,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 02:44:22,583 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 19 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:22,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 332 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:44:22,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-14 02:44:22,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2024-11-14 02:44:22,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 73 states have (on average 1.63013698630137) internal successors, (119), 99 states have internal predecessors, (119), 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 02:44:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2024-11-14 02:44:22,599 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 20 [2024-11-14 02:44:22,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:22,599 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2024-11-14 02:44:22,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:22,600 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2024-11-14 02:44:22,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-14 02:44:22,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:22,605 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:22,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 02:44:22,605 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:22,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1116635197, now seen corresponding path program 1 times [2024-11-14 02:44:22,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:22,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785360088] [2024-11-14 02:44:22,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:22,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:44:22,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635220284] [2024-11-14 02:44:22,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:22,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:22,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:22,638 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:22,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 02:44:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:22,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:44:22,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:22,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:44:22,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:22,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785360088] [2024-11-14 02:44:22,755 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:44:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635220284] [2024-11-14 02:44:22,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635220284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:22,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:22,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:44:22,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747598860] [2024-11-14 02:44:22,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:22,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:44:22,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:22,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:44:22,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:22,757 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:22,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:22,920 INFO L93 Difference]: Finished difference Result 155 states and 193 transitions. [2024-11-14 02:44:22,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:44:22,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2024-11-14 02:44:22,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:22,923 INFO L225 Difference]: With dead ends: 155 [2024-11-14 02:44:22,923 INFO L226 Difference]: Without dead ends: 151 [2024-11-14 02:44:22,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 02:44:22,924 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 44 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:22,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 95 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:44:22,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-14 02:44:22,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 135. [2024-11-14 02:44:22,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 91 states have (on average 1.6043956043956045) internal successors, (146), 117 states have internal predecessors, (146), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 02:44:22,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 174 transitions. [2024-11-14 02:44:22,955 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 174 transitions. Word has length 22 [2024-11-14 02:44:22,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:22,955 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 174 transitions. [2024-11-14 02:44:22,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 174 transitions. [2024-11-14 02:44:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 02:44:22,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:22,956 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:22,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 02:44:23,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:23,157 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:23,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1164049271, now seen corresponding path program 1 times [2024-11-14 02:44:23,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:23,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411915317] [2024-11-14 02:44:23,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:23,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:23,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:23,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411915317] [2024-11-14 02:44:23,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411915317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:44:23,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087972410] [2024-11-14 02:44:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:23,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:23,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:23,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:23,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 02:44:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:23,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:44:23,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:23,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:44:23,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087972410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:23,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:44:23,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 02:44:23,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288623639] [2024-11-14 02:44:23,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:23,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:44:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:23,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:44:23,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 02:44:23,517 INFO L87 Difference]: Start difference. First operand 135 states and 174 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:23,585 INFO L93 Difference]: Finished difference Result 139 states and 175 transitions. [2024-11-14 02:44:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:44:23,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-14 02:44:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:23,591 INFO L225 Difference]: With dead ends: 139 [2024-11-14 02:44:23,591 INFO L226 Difference]: Without dead ends: 138 [2024-11-14 02:44:23,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-14 02:44:23,592 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 16 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:23,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 252 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:44:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-14 02:44:23,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 136. [2024-11-14 02:44:23,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 92 states have (on average 1.5869565217391304) internal successors, (146), 117 states have internal predecessors, (146), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 02:44:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 174 transitions. [2024-11-14 02:44:23,616 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 174 transitions. Word has length 23 [2024-11-14 02:44:23,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:23,616 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 174 transitions. [2024-11-14 02:44:23,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:23,617 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 174 transitions. [2024-11-14 02:44:23,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 02:44:23,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:23,618 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:23,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 02:44:23,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:23,819 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:23,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:23,820 INFO L85 PathProgramCache]: Analyzing trace with hash 655402597, now seen corresponding path program 1 times [2024-11-14 02:44:23,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:23,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395402035] [2024-11-14 02:44:23,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:23,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:23,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:23,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395402035] [2024-11-14 02:44:23,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395402035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:23,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:23,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:44:23,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100658887] [2024-11-14 02:44:23,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:23,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:44:23,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:23,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:44:23,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:44:23,913 INFO L87 Difference]: Start difference. First operand 136 states and 174 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:25,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:25,112 INFO L93 Difference]: Finished difference Result 163 states and 201 transitions. [2024-11-14 02:44:25,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:44:25,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-14 02:44:25,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:25,116 INFO L225 Difference]: With dead ends: 163 [2024-11-14 02:44:25,116 INFO L226 Difference]: Without dead ends: 162 [2024-11-14 02:44:25,117 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 02:44:25,118 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 110 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:25,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 102 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 02:44:25,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-14 02:44:25,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 143. [2024-11-14 02:44:25,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.5656565656565657) internal successors, (155), 124 states have internal predecessors, (155), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 02:44:25,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2024-11-14 02:44:25,162 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 24 [2024-11-14 02:44:25,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:25,162 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2024-11-14 02:44:25,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:25,163 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2024-11-14 02:44:25,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 02:44:25,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:25,165 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:25,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 02:44:25,166 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:25,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:25,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1725789080, now seen corresponding path program 1 times [2024-11-14 02:44:25,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:25,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016842495] [2024-11-14 02:44:25,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:25,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:25,282 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:25,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:25,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016842495] [2024-11-14 02:44:25,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016842495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:44:25,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876395908] [2024-11-14 02:44:25,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:25,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:25,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:25,287 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:25,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 02:44:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:25,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:44:25,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:25,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:25,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:44:25,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876395908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:25,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:44:25,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-14 02:44:25,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704517461] [2024-11-14 02:44:25,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:25,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:44:25,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:25,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:44:25,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-14 02:44:25,448 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:25,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:25,558 INFO L93 Difference]: Finished difference Result 148 states and 188 transitions. [2024-11-14 02:44:25,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:44:25,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-14 02:44:25,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:25,560 INFO L225 Difference]: With dead ends: 148 [2024-11-14 02:44:25,561 INFO L226 Difference]: Without dead ends: 147 [2024-11-14 02:44:25,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-14 02:44:25,562 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 14 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:25,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 251 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:44:25,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-14 02:44:25,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 142. [2024-11-14 02:44:25,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 99 states have (on average 1.5555555555555556) internal successors, (154), 123 states have internal predecessors, (154), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 02:44:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 182 transitions. [2024-11-14 02:44:25,594 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 182 transitions. Word has length 24 [2024-11-14 02:44:25,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:25,594 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 182 transitions. [2024-11-14 02:44:25,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:25,597 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 182 transitions. [2024-11-14 02:44:25,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 02:44:25,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:25,599 INFO L215 NwaCegarLoop]: trace histogram [3, 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 02:44:25,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 02:44:25,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 02:44:25,800 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:25,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:25,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1157355878, now seen corresponding path program 1 times [2024-11-14 02:44:25,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:25,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218008004] [2024-11-14 02:44:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:44:25,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000785904] [2024-11-14 02:44:25,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:25,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:25,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:25,822 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:25,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 02:44:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:25,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:44:25,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:26,088 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:44:26,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:26,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218008004] [2024-11-14 02:44:26,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:44:26,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000785904] [2024-11-14 02:44:26,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000785904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:26,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:26,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:44:26,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786525466] [2024-11-14 02:44:26,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:26,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:44:26,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:26,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:44:26,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:26,090 INFO L87 Difference]: Start difference. First operand 142 states and 182 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:26,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:26,281 INFO L93 Difference]: Finished difference Result 156 states and 189 transitions. [2024-11-14 02:44:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:44:26,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-14 02:44:26,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:26,286 INFO L225 Difference]: With dead ends: 156 [2024-11-14 02:44:26,286 INFO L226 Difference]: Without dead ends: 153 [2024-11-14 02:44:26,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 02:44:26,288 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 35 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:26,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 87 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:44:26,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-14 02:44:26,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 143. [2024-11-14 02:44:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 100 states have (on average 1.52) internal successors, (152), 124 states have internal predecessors, (152), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 02:44:26,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 180 transitions. [2024-11-14 02:44:26,318 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 180 transitions. Word has length 25 [2024-11-14 02:44:26,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:26,320 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 180 transitions. [2024-11-14 02:44:26,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:44:26,321 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 180 transitions. [2024-11-14 02:44:26,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-14 02:44:26,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:26,321 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:44:26,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 02:44:26,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 02:44:26,522 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:44:26,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:26,523 INFO L85 PathProgramCache]: Analyzing trace with hash -2070967588, now seen corresponding path program 1 times [2024-11-14 02:44:26,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:26,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856742758] [2024-11-14 02:44:26,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:26,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:26,639 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:26,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:26,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856742758] [2024-11-14 02:44:26,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856742758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:44:26,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578741093] [2024-11-14 02:44:26,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:26,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:26,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:26,643 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:26,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 02:44:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:26,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 02:44:26,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:26,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:44:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:44:26,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578741093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:44:26,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [46642320] [2024-11-14 02:44:26,955 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-14 02:44:26,956 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:44:26,961 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:44:26,967 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:44:26,968 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:44:30,731 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-14 02:44:30,739 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:44:40,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [46642320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:40,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:44:40,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [7, 5, 6] total 30 [2024-11-14 02:44:40,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151586578] [2024-11-14 02:44:40,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:40,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 02:44:40,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:40,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 02:44:40,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=742, Unknown=1, NotChecked=0, Total=870 [2024-11-14 02:44:40,609 INFO L87 Difference]: Start difference. First operand 143 states and 180 transitions. Second operand has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 02:44:44,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:44:48,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:44:51,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:44:54,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:44:57,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:00,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:03,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:05,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:07,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:09,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:11,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:13,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:15,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:18,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:19,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:21,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:23,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:24,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:26,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:29,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:31,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:33,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:35,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:45:37,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:38,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:45:39,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:39,736 INFO L93 Difference]: Finished difference Result 193 states and 233 transitions. [2024-11-14 02:45:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 02:45:39,737 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 27 [2024-11-14 02:45:39,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:39,738 INFO L225 Difference]: With dead ends: 193 [2024-11-14 02:45:39,738 INFO L226 Difference]: Without dead ends: 179 [2024-11-14 02:45:39,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=301, Invalid=1768, Unknown=1, NotChecked=0, Total=2070 [2024-11-14 02:45:39,740 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 102 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 50 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:39,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 211 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 757 Invalid, 5 Unknown, 0 Unchecked, 48.1s Time] [2024-11-14 02:45:39,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-14 02:45:39,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 157. [2024-11-14 02:45:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 114 states have (on average 1.4385964912280702) internal successors, (164), 135 states have internal predecessors, (164), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-14 02:45:39,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 196 transitions. [2024-11-14 02:45:39,768 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 196 transitions. Word has length 27 [2024-11-14 02:45:39,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:39,768 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 196 transitions. [2024-11-14 02:45:39,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 02:45:39,769 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 196 transitions. [2024-11-14 02:45:39,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 02:45:39,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:39,772 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:39,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 02:45:39,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:45:39,973 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:45:39,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:39,974 INFO L85 PathProgramCache]: Analyzing trace with hash 224514294, now seen corresponding path program 1 times [2024-11-14 02:45:39,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:39,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970594033] [2024-11-14 02:45:39,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:39,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:40,120 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:45:40,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:40,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970594033] [2024-11-14 02:45:40,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970594033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:45:40,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16111343] [2024-11-14 02:45:40,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:40,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:45:40,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:45:40,124 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:45:40,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 02:45:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:40,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 02:45:40,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:40,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:45:40,265 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:45:40,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:45:40,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16111343] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:45:40,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1157156858] [2024-11-14 02:45:40,372 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-14 02:45:40,373 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:45:40,373 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:45:40,373 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:45:40,374 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:45:42,479 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-14 02:45:42,486 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:45:45,097 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4685#(and (<= 1 |#StackHeapBarrier|) (<= (div |ULTIMATE.start_main_~p~0#1| 2) 4611686018427387903) (= (mod |ULTIMATE.start_main_~p~0#1| 2) 0) (<= 0 (+ (div |ULTIMATE.start_main_~p~0#1| 2) 4611686018427387904)) (= |ULTIMATE.start_main_~d~0#1| (* (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 2)) (<= (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387903) (<= (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) (= ~counter~0 2147483647) (<= 0 (+ (* (div |ULTIMATE.start_main_~p~0#1| 2) (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387904)))' at error location [2024-11-14 02:45:45,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:45:45,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:45:45,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-14 02:45:45,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831583441] [2024-11-14 02:45:45,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:45:45,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 02:45:45,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:45,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 02:45:45,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2024-11-14 02:45:45,100 INFO L87 Difference]: Start difference. First operand 157 states and 196 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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 02:45:45,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:45,406 INFO L93 Difference]: Finished difference Result 300 states and 371 transitions. [2024-11-14 02:45:45,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 02:45:45,406 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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 28 [2024-11-14 02:45:45,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:45,408 INFO L225 Difference]: With dead ends: 300 [2024-11-14 02:45:45,408 INFO L226 Difference]: Without dead ends: 207 [2024-11-14 02:45:45,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=204, Invalid=1128, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 02:45:45,411 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 53 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:45,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 461 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:45:45,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-14 02:45:45,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2024-11-14 02:45:45,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.3943661971830985) internal successors, (198), 163 states have internal predecessors, (198), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-14 02:45:45,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 242 transitions. [2024-11-14 02:45:45,453 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 242 transitions. Word has length 28 [2024-11-14 02:45:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:45,454 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 242 transitions. [2024-11-14 02:45:45,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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 02:45:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 242 transitions. [2024-11-14 02:45:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 02:45:45,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:45,457 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:45,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 02:45:45,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 02:45:45,658 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:45:45,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:45,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1641910501, now seen corresponding path program 1 times [2024-11-14 02:45:45,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:45,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323981894] [2024-11-14 02:45:45,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:45,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:45,780 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 02:45:45,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:45,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323981894] [2024-11-14 02:45:45,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323981894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:45,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:45:45,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:45:45,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315949681] [2024-11-14 02:45:45,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:45,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:45:45,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:45:45,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 02:45:45,782 INFO L87 Difference]: Start difference. First operand 193 states and 242 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 02:45:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:46,258 INFO L93 Difference]: Finished difference Result 205 states and 247 transitions. [2024-11-14 02:45:46,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:45:46,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 37 [2024-11-14 02:45:46,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:46,261 INFO L225 Difference]: With dead ends: 205 [2024-11-14 02:45:46,261 INFO L226 Difference]: Without dead ends: 185 [2024-11-14 02:45:46,262 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 02:45:46,262 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 51 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:46,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 128 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:45:46,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-14 02:45:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 175. [2024-11-14 02:45:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 127 states have (on average 1.4015748031496063) internal successors, (178), 148 states have internal predecessors, (178), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 02:45:46,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2024-11-14 02:45:46,303 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 37 [2024-11-14 02:45:46,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:46,303 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2024-11-14 02:45:46,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 02:45:46,304 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2024-11-14 02:45:46,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 02:45:46,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:46,305 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:46,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 02:45:46,305 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:45:46,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:46,306 INFO L85 PathProgramCache]: Analyzing trace with hash -24732112, now seen corresponding path program 1 times [2024-11-14 02:45:46,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:46,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26555673] [2024-11-14 02:45:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:46,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:46,542 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:45:46,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:46,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26555673] [2024-11-14 02:45:46,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26555673] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:45:46,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667183031] [2024-11-14 02:45:46,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:46,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:45:46,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:45:46,546 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:45:46,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 02:45:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:46,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 02:45:46,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 02:45:46,731 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:45:46,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667183031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:45:46,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:45:46,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-14 02:45:46,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529991063] [2024-11-14 02:45:46,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:45:46,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:45:46,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:45:46,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:45:46,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-14 02:45:46,736 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 02:45:46,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:45:46,827 INFO L93 Difference]: Finished difference Result 175 states and 218 transitions. [2024-11-14 02:45:46,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:45:46,828 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-14 02:45:46,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:45:46,830 INFO L225 Difference]: With dead ends: 175 [2024-11-14 02:45:46,830 INFO L226 Difference]: Without dead ends: 174 [2024-11-14 02:45:46,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-14 02:45:46,831 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 62 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:45:46,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 177 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:45:46,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-14 02:45:46,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-14 02:45:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 127 states have (on average 1.3700787401574803) internal successors, (174), 147 states have internal predecessors, (174), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 02:45:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 214 transitions. [2024-11-14 02:45:46,878 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 214 transitions. Word has length 39 [2024-11-14 02:45:46,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:45:46,879 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 214 transitions. [2024-11-14 02:45:46,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 02:45:46,879 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 214 transitions. [2024-11-14 02:45:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 02:45:46,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:45:46,880 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:45:46,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 02:45:47,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 02:45:47,080 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:45:47,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:45:47,081 INFO L85 PathProgramCache]: Analyzing trace with hash -766695390, now seen corresponding path program 1 times [2024-11-14 02:45:47,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:45:47,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081103952] [2024-11-14 02:45:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:47,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:45:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:45:47,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:45:47,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081103952] [2024-11-14 02:45:47,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081103952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:45:47,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493886964] [2024-11-14 02:45:47,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:45:47,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:45:47,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:45:47,246 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:45:47,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 02:45:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:45:47,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 02:45:47,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:45:47,430 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 02:45:47,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:45:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:45:47,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493886964] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:45:47,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1750896709] [2024-11-14 02:45:47,583 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-14 02:45:47,584 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:45:47,584 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:45:47,584 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:45:47,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:45:49,121 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-14 02:45:49,125 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:46:01,805 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6612#(and (<= 1 |#StackHeapBarrier|) (<= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 9223372036854775807) (= |ULTIMATE.start_main_~q~0#1| 0) (<= 2147483647 ~counter~0) (= (* |ULTIMATE.start_main_~p~0#1| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~d~0#1|) (<= (+ |ULTIMATE.start_main_~r~0#1| 1) |ULTIMATE.start_main_~d~0#1|))' at error location [2024-11-14 02:46:01,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:46:01,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:46:01,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-14 02:46:01,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928278161] [2024-11-14 02:46:01,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:46:01,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 02:46:01,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:01,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 02:46:01,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1149, Unknown=1, NotChecked=0, Total=1332 [2024-11-14 02:46:01,808 INFO L87 Difference]: Start difference. First operand 174 states and 214 transitions. Second operand has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 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 02:46:02,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:02,377 INFO L93 Difference]: Finished difference Result 283 states and 340 transitions. [2024-11-14 02:46:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-14 02:46:02,377 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 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 40 [2024-11-14 02:46:02,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:02,379 INFO L225 Difference]: With dead ends: 283 [2024-11-14 02:46:02,380 INFO L226 Difference]: Without dead ends: 282 [2024-11-14 02:46:02,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=347, Invalid=2004, Unknown=1, NotChecked=0, Total=2352 [2024-11-14 02:46:02,382 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 227 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:02,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 555 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:46:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-14 02:46:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 249. [2024-11-14 02:46:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 194 states have (on average 1.407216494845361) internal successors, (273), 214 states have internal predecessors, (273), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 02:46:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 325 transitions. [2024-11-14 02:46:02,437 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 325 transitions. Word has length 40 [2024-11-14 02:46:02,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:02,437 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 325 transitions. [2024-11-14 02:46:02,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 19 states have internal predecessors, (66), 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 02:46:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 325 transitions. [2024-11-14 02:46:02,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-14 02:46:02,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:02,438 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-14 02:46:02,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 02:46:02,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 02:46:02,639 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:46:02,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:02,639 INFO L85 PathProgramCache]: Analyzing trace with hash -766647724, now seen corresponding path program 1 times [2024-11-14 02:46:02,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:02,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913549357] [2024-11-14 02:46:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:02,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:02,725 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:46:02,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:02,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913549357] [2024-11-14 02:46:02,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913549357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:46:02,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853534526] [2024-11-14 02:46:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:02,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:02,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:46:02,729 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:46:02,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 02:46:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:02,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:46:02,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:46:02,873 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:46:02,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:46:02,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853534526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:02,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:46:02,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-14 02:46:02,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606646929] [2024-11-14 02:46:02,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:02,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:46:02,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:02,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:46:02,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:46:02,875 INFO L87 Difference]: Start difference. First operand 249 states and 325 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 02:46:03,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:03,026 INFO L93 Difference]: Finished difference Result 257 states and 332 transitions. [2024-11-14 02:46:03,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:46:03,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-14 02:46:03,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:03,028 INFO L225 Difference]: With dead ends: 257 [2024-11-14 02:46:03,029 INFO L226 Difference]: Without dead ends: 254 [2024-11-14 02:46:03,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 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 02:46:03,029 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 69 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:03,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 112 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:46:03,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-14 02:46:03,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 246. [2024-11-14 02:46:03,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 194 states have (on average 1.3350515463917525) internal successors, (259), 211 states have internal predecessors, (259), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 02:46:03,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 311 transitions. [2024-11-14 02:46:03,089 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 311 transitions. Word has length 40 [2024-11-14 02:46:03,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:03,090 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 311 transitions. [2024-11-14 02:46:03,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 02:46:03,090 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 311 transitions. [2024-11-14 02:46:03,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-14 02:46:03,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:03,091 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 02:46:03,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 02:46:03,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 02:46:03,292 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:46:03,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:03,292 INFO L85 PathProgramCache]: Analyzing trace with hash 2003724404, now seen corresponding path program 1 times [2024-11-14 02:46:03,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:03,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791040431] [2024-11-14 02:46:03,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:03,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:03,365 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:46:03,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:03,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791040431] [2024-11-14 02:46:03,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791040431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:46:03,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191068214] [2024-11-14 02:46:03,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:03,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:03,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:46:03,369 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:46:03,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 02:46:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:03,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:46:03,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:46:03,512 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:46:03,512 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:46:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:46:03,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191068214] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:46:03,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1753200557] [2024-11-14 02:46:03,631 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 02:46:03,632 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:46:03,632 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:46:03,632 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:46:03,632 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:46:05,137 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 30 for LOIs [2024-11-14 02:46:05,143 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:46:12,031 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8290#(and (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~p~0#1_67| Int)) (and (<= (* |v_ULTIMATE.start_main_~p~0#1_67| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) 4611686018427387903) (<= (* |v_ULTIMATE.start_main_~p~0#1_67| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (= |ULTIMATE.start_main_~d~0#1| (* 2 (* |v_ULTIMATE.start_main_~p~0#1_67| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)))) (<= 4611686018427387904 |v_ULTIMATE.start_main_~p~0#1_67|))))' at error location [2024-11-14 02:46:12,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:46:12,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:46:12,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-14 02:46:12,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279805631] [2024-11-14 02:46:12,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:46:12,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:46:12,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:12,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:46:12,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-14 02:46:12,034 INFO L87 Difference]: Start difference. First operand 246 states and 311 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-14 02:46:12,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:12,510 INFO L93 Difference]: Finished difference Result 448 states and 575 transitions. [2024-11-14 02:46:12,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 02:46:12,511 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 41 [2024-11-14 02:46:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:12,513 INFO L225 Difference]: With dead ends: 448 [2024-11-14 02:46:12,514 INFO L226 Difference]: Without dead ends: 445 [2024-11-14 02:46:12,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-14 02:46:12,515 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 177 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:12,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 262 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:46:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-14 02:46:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 392. [2024-11-14 02:46:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 327 states have (on average 1.3608562691131498) internal successors, (445), 344 states have internal predecessors, (445), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 02:46:12,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 523 transitions. [2024-11-14 02:46:12,572 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 523 transitions. Word has length 41 [2024-11-14 02:46:12,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:12,572 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 523 transitions. [2024-11-14 02:46:12,573 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-14 02:46:12,573 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 523 transitions. [2024-11-14 02:46:12,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 02:46:12,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:12,574 INFO L215 NwaCegarLoop]: trace histogram [8, 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 02:46:12,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 02:46:12,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 02:46:12,775 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:46:12,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:12,775 INFO L85 PathProgramCache]: Analyzing trace with hash -548779887, now seen corresponding path program 1 times [2024-11-14 02:46:12,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:12,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706861512] [2024-11-14 02:46:12,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:12,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:12,930 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:46:12,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:12,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706861512] [2024-11-14 02:46:12,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706861512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:46:12,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799043889] [2024-11-14 02:46:12,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:12,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:12,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:46:12,934 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:46:12,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 02:46:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:13,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 02:46:13,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:46:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:46:13,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:46:13,777 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:46:13,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799043889] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:46:13,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2002503793] [2024-11-14 02:46:13,779 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-14 02:46:13,781 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:46:13,782 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:46:13,782 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:46:13,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:46:15,485 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2024-11-14 02:46:15,490 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:46:18,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2002503793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:18,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:46:18,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [4, 4, 4] total 30 [2024-11-14 02:46:18,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871032043] [2024-11-14 02:46:18,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:18,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 02:46:18,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:18,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 02:46:18,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2024-11-14 02:46:18,881 INFO L87 Difference]: Start difference. First operand 392 states and 523 transitions. Second operand has 22 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 02:46:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:24,870 INFO L93 Difference]: Finished difference Result 420 states and 549 transitions. [2024-11-14 02:46:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 02:46:24,871 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 56 [2024-11-14 02:46:24,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:24,875 INFO L225 Difference]: With dead ends: 420 [2024-11-14 02:46:24,875 INFO L226 Difference]: Without dead ends: 418 [2024-11-14 02:46:24,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 132 SyntacticMatches, 9 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=485, Invalid=1867, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 02:46:24,878 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 100 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:24,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 106 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 02:46:24,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-14 02:46:24,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 391. [2024-11-14 02:46:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 325 states have (on average 1.3476923076923077) internal successors, (438), 343 states have internal predecessors, (438), 39 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 02:46:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 516 transitions. [2024-11-14 02:46:24,951 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 516 transitions. Word has length 56 [2024-11-14 02:46:24,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:24,952 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 516 transitions. [2024-11-14 02:46:24,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 02:46:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 516 transitions. [2024-11-14 02:46:24,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-14 02:46:24,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:24,953 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:46:24,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 02:46:25,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:25,155 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:46:25,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:25,156 INFO L85 PathProgramCache]: Analyzing trace with hash 689323061, now seen corresponding path program 1 times [2024-11-14 02:46:25,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:25,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142567677] [2024-11-14 02:46:25,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:25,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:25,241 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 02:46:25,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:25,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142567677] [2024-11-14 02:46:25,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142567677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:25,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:46:25,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:46:25,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206072925] [2024-11-14 02:46:25,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:25,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:46:25,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:25,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:46:25,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:46:25,244 INFO L87 Difference]: Start difference. First operand 391 states and 516 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 02:46:25,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:25,364 INFO L93 Difference]: Finished difference Result 391 states and 516 transitions. [2024-11-14 02:46:25,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:46:25,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 60 [2024-11-14 02:46:25,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:25,371 INFO L225 Difference]: With dead ends: 391 [2024-11-14 02:46:25,371 INFO L226 Difference]: Without dead ends: 390 [2024-11-14 02:46:25,371 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 02:46:25,372 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:25,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:46:25,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-14 02:46:25,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2024-11-14 02:46:25,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 325 states have (on average 1.3261538461538462) internal successors, (431), 342 states have internal predecessors, (431), 39 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 02:46:25,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 509 transitions. [2024-11-14 02:46:25,443 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 509 transitions. Word has length 60 [2024-11-14 02:46:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:25,444 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 509 transitions. [2024-11-14 02:46:25,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 02:46:25,444 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 509 transitions. [2024-11-14 02:46:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-14 02:46:25,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:25,445 INFO L215 NwaCegarLoop]: trace histogram [8, 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 02:46:25,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 02:46:25,446 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:46:25,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:25,446 INFO L85 PathProgramCache]: Analyzing trace with hash -105821468, now seen corresponding path program 1 times [2024-11-14 02:46:25,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:25,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20763204] [2024-11-14 02:46:25,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:25,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:25,664 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 02:46:25,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:25,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20763204] [2024-11-14 02:46:25,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20763204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:25,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:46:25,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 02:46:25,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137445968] [2024-11-14 02:46:25,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:25,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:46:25,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:25,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:46:25,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 02:46:25,667 INFO L87 Difference]: Start difference. First operand 390 states and 509 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 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 02:46:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:26,320 INFO L93 Difference]: Finished difference Result 593 states and 815 transitions. [2024-11-14 02:46:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:46:26,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 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 61 [2024-11-14 02:46:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:26,324 INFO L225 Difference]: With dead ends: 593 [2024-11-14 02:46:26,324 INFO L226 Difference]: Without dead ends: 592 [2024-11-14 02:46:26,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:46:26,325 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 115 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:26,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 248 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 02:46:26,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-14 02:46:26,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 530. [2024-11-14 02:46:26,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 453 states have (on average 1.3951434878587197) internal successors, (632), 469 states have internal predecessors, (632), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 02:46:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 734 transitions. [2024-11-14 02:46:26,407 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 734 transitions. Word has length 61 [2024-11-14 02:46:26,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:26,408 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 734 transitions. [2024-11-14 02:46:26,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 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 02:46:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 734 transitions. [2024-11-14 02:46:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 02:46:26,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:26,409 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:46:26,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 02:46:26,410 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:46:26,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:26,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1014501911, now seen corresponding path program 1 times [2024-11-14 02:46:26,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:26,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637832143] [2024-11-14 02:46:26,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:26,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:26,604 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:46:26,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:26,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637832143] [2024-11-14 02:46:26,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637832143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:46:26,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123446775] [2024-11-14 02:46:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:26,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:26,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:46:26,607 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:46:26,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 02:46:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:26,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:46:26,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:46:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 02:46:26,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:46:26,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123446775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:26,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:46:26,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-14 02:46:26,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329564486] [2024-11-14 02:46:26,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:26,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:46:26,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:26,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:46:26,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:46:26,972 INFO L87 Difference]: Start difference. First operand 530 states and 734 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 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 02:46:27,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:27,279 INFO L93 Difference]: Finished difference Result 549 states and 752 transitions. [2024-11-14 02:46:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:46:27,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 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 62 [2024-11-14 02:46:27,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:27,283 INFO L225 Difference]: With dead ends: 549 [2024-11-14 02:46:27,284 INFO L226 Difference]: Without dead ends: 548 [2024-11-14 02:46:27,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-14 02:46:27,286 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 74 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:27,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 129 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:46:27,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-14 02:46:27,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 539. [2024-11-14 02:46:27,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 462 states have (on average 1.3766233766233766) internal successors, (636), 478 states have internal predecessors, (636), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 02:46:27,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 738 transitions. [2024-11-14 02:46:27,382 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 738 transitions. Word has length 62 [2024-11-14 02:46:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:27,382 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 738 transitions. [2024-11-14 02:46:27,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 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 02:46:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 738 transitions. [2024-11-14 02:46:27,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 02:46:27,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:27,384 INFO L215 NwaCegarLoop]: trace histogram [8, 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 02:46:27,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-14 02:46:27,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-14 02:46:27,585 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:46:27,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1384788294, now seen corresponding path program 1 times [2024-11-14 02:46:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:27,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014605408] [2024-11-14 02:46:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:46:27,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014605408] [2024-11-14 02:46:27,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014605408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:46:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943582617] [2024-11-14 02:46:27,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:27,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:46:27,803 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:46:27,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 02:46:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:27,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:46:27,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:46:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 02:46:28,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:46:28,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943582617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:28,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:46:28,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-14 02:46:28,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025414775] [2024-11-14 02:46:28,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:28,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 02:46:28,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:28,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 02:46:28,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:46:28,095 INFO L87 Difference]: Start difference. First operand 539 states and 738 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 02:46:28,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:28,472 INFO L93 Difference]: Finished difference Result 549 states and 744 transitions. [2024-11-14 02:46:28,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 02:46:28,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 63 [2024-11-14 02:46:28,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:28,476 INFO L225 Difference]: With dead ends: 549 [2024-11-14 02:46:28,476 INFO L226 Difference]: Without dead ends: 547 [2024-11-14 02:46:28,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:46:28,479 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 33 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:28,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 103 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:46:28,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-14 02:46:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2024-11-14 02:46:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 465 states have (on average 1.356989247311828) internal successors, (631), 481 states have internal predecessors, (631), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 02:46:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 733 transitions. [2024-11-14 02:46:28,587 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 733 transitions. Word has length 63 [2024-11-14 02:46:28,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:28,588 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 733 transitions. [2024-11-14 02:46:28,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 02:46:28,588 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 733 transitions. [2024-11-14 02:46:28,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 02:46:28,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:28,590 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:46:28,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-14 02:46:28,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:28,791 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:46:28,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:28,792 INFO L85 PathProgramCache]: Analyzing trace with hash -854560742, now seen corresponding path program 1 times [2024-11-14 02:46:28,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:28,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741596256] [2024-11-14 02:46:28,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:28,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:46:29,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:29,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741596256] [2024-11-14 02:46:29,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741596256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:46:29,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981442954] [2024-11-14 02:46:29,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:29,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:29,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:46:29,073 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:46:29,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 02:46:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:29,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 02:46:29,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:46:29,295 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:46:29,295 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:46:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:46:29,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981442954] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:46:29,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [247952123] [2024-11-14 02:46:29,571 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 02:46:29,571 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:46:29,571 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:46:29,572 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:46:29,572 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:46:31,417 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:46:31,569 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:46:32,706 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:46:32,711 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:46:41,565 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16398#(and (exists ((v_~counter~0_61 Int) (|v_ULTIMATE.start_main_~q~0#1_48| Int) (|v_ULTIMATE.start_main_~d~0#1_88| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1| |v_ULTIMATE.start_main_~d~0#1_88|)) (<= (+ |ULTIMATE.start_main_~r~0#1| |v_ULTIMATE.start_main_~d~0#1_88|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_48| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_48| 9223372036854775808)) (<= v_~counter~0_61 50) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_48| |v_ULTIMATE.start_main_~d~0#1_88|)) 0) (= ~counter~0 (+ v_~counter~0_61 1)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))) (<= 51 ~counter~0))' at error location [2024-11-14 02:46:41,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:46:41,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:46:41,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-14 02:46:41,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125682158] [2024-11-14 02:46:41,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:46:41,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 02:46:41,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:41,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 02:46:41,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=2572, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 02:46:41,568 INFO L87 Difference]: Start difference. First operand 542 states and 733 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-14 02:46:42,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:46:42,315 INFO L93 Difference]: Finished difference Result 691 states and 909 transitions. [2024-11-14 02:46:42,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 02:46:42,315 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 68 [2024-11-14 02:46:42,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:46:42,319 INFO L225 Difference]: With dead ends: 691 [2024-11-14 02:46:42,319 INFO L226 Difference]: Without dead ends: 682 [2024-11-14 02:46:42,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 156 SyntacticMatches, 5 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1975 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=495, Invalid=4335, Unknown=0, NotChecked=0, Total=4830 [2024-11-14 02:46:42,322 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 193 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:46:42,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 520 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:46:42,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-14 02:46:42,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 640. [2024-11-14 02:46:42,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 552 states have (on average 1.355072463768116) internal successors, (748), 568 states have internal predecessors, (748), 59 states have call successors, (59), 12 states have call predecessors, (59), 12 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-14 02:46:42,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 866 transitions. [2024-11-14 02:46:42,417 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 866 transitions. Word has length 68 [2024-11-14 02:46:42,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:46:42,417 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 866 transitions. [2024-11-14 02:46:42,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 21 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-14 02:46:42,418 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 866 transitions. [2024-11-14 02:46:42,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 02:46:42,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:46:42,418 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:46:42,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 02:46:42,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:42,619 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:46:42,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:46:42,620 INFO L85 PathProgramCache]: Analyzing trace with hash -854560724, now seen corresponding path program 1 times [2024-11-14 02:46:42,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:46:42,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691150206] [2024-11-14 02:46:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:42,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:46:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:46:42,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [911982160] [2024-11-14 02:46:42,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:46:42,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:46:42,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:46:42,665 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:46:42,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 02:46:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:46:42,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 02:46:42,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:46:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:46:43,207 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:46:43,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:46:43,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691150206] [2024-11-14 02:46:43,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:46:43,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911982160] [2024-11-14 02:46:43,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911982160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:46:43,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [743359190] [2024-11-14 02:46:43,874 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:46:43,875 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:46:43,875 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:46:43,876 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:46:43,876 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:46:45,481 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:46:45,610 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:46:46,767 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:46:46,772 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:47:09,855 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '18300#(and (<= ~counter~0 50) (exists ((v_~counter~0_71 Int) (|v_ULTIMATE.start_main_~B~0#1_40| Int) (|v_ULTIMATE.start_main_~q~0#1_54| Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 (+ v_~counter~0_71 1)) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_54| (mod |v_ULTIMATE.start_main_~B~0#1_40| 4294967296))) 0) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_54| 9223372036854775808)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-14 02:47:09,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:47:09,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:47:09,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 02:47:09,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966825437] [2024-11-14 02:47:09,855 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 02:47:09,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:47:09,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:47:09,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:47:09,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1394, Unknown=2, NotChecked=0, Total=1640 [2024-11-14 02:47:09,857 INFO L87 Difference]: Start difference. First operand 640 states and 866 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 02:47:10,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:47:10,161 INFO L93 Difference]: Finished difference Result 664 states and 881 transitions. [2024-11-14 02:47:10,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 02:47:10,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-14 02:47:10,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:47:10,165 INFO L225 Difference]: With dead ends: 664 [2024-11-14 02:47:10,165 INFO L226 Difference]: Without dead ends: 417 [2024-11-14 02:47:10,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 107 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=252, Invalid=1468, Unknown=2, NotChecked=0, Total=1722 [2024-11-14 02:47:10,167 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 59 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:47:10,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 205 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:47:10,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-14 02:47:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 413. [2024-11-14 02:47:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 344 states have (on average 1.322674418604651) internal successors, (455), 360 states have internal predecessors, (455), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 02:47:10,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 537 transitions. [2024-11-14 02:47:10,245 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 537 transitions. Word has length 68 [2024-11-14 02:47:10,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:47:10,245 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 537 transitions. [2024-11-14 02:47:10,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 02:47:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 537 transitions. [2024-11-14 02:47:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 02:47:10,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:47:10,247 INFO L215 NwaCegarLoop]: trace histogram [8, 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] [2024-11-14 02:47:10,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 02:47:10,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:47:10,452 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:47:10,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:47:10,452 INFO L85 PathProgramCache]: Analyzing trace with hash -721578577, now seen corresponding path program 1 times [2024-11-14 02:47:10,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:47:10,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675606023] [2024-11-14 02:47:10,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:10,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:47:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:47:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470955729] [2024-11-14 02:47:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:10,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:47:10,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:47:10,479 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:47:10,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 02:47:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:47:10,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 02:47:10,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:47:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:47:11,005 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:47:11,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:47:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675606023] [2024-11-14 02:47:11,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:47:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470955729] [2024-11-14 02:47:11,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470955729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:47:11,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1944337451] [2024-11-14 02:47:11,462 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:47:11,462 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:47:11,462 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:47:11,462 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:47:11,462 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:47:12,893 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:47:12,979 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:47:14,324 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:47:14,330 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:47:24,394 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19888#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~B~0#1_41| Int) (|v_ULTIMATE.start_main_~q~0#1_60| Int) (v_~counter~0_81 Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 (+ v_~counter~0_81 1)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_60| (mod |v_ULTIMATE.start_main_~B~0#1_41| 4294967296))) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_60| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-14 02:47:24,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:47:24,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:47:24,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 02:47:24,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334507732] [2024-11-14 02:47:24,394 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 02:47:24,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:47:24,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:47:24,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:47:24,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1384, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 02:47:24,396 INFO L87 Difference]: Start difference. First operand 413 states and 537 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 02:47:24,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:47:24,656 INFO L93 Difference]: Finished difference Result 422 states and 544 transitions. [2024-11-14 02:47:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:47:24,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-14 02:47:24,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:47:24,658 INFO L225 Difference]: With dead ends: 422 [2024-11-14 02:47:24,659 INFO L226 Difference]: Without dead ends: 421 [2024-11-14 02:47:24,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 110 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=256, Invalid=1384, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 02:47:24,660 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 46 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:47:24,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 180 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:47:24,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-14 02:47:24,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2024-11-14 02:47:24,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 344 states have (on average 1.319767441860465) internal successors, (454), 360 states have internal predecessors, (454), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 02:47:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 536 transitions. [2024-11-14 02:47:24,718 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 536 transitions. Word has length 69 [2024-11-14 02:47:24,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:47:24,718 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 536 transitions. [2024-11-14 02:47:24,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 02:47:24,719 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 536 transitions. [2024-11-14 02:47:24,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 02:47:24,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:47:24,720 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:47:24,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 02:47:24,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 02:47:24,924 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:47:24,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:47:24,924 INFO L85 PathProgramCache]: Analyzing trace with hash -894099314, now seen corresponding path program 1 times [2024-11-14 02:47:24,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:47:24,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809376847] [2024-11-14 02:47:24,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:24,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:47:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:47:25,067 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 02:47:25,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:47:25,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809376847] [2024-11-14 02:47:25,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809376847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:47:25,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:47:25,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 02:47:25,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694047675] [2024-11-14 02:47:25,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:47:25,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 02:47:25,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:47:25,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 02:47:25,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:47:25,069 INFO L87 Difference]: Start difference. First operand 413 states and 536 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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 02:47:25,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:47:25,542 INFO L93 Difference]: Finished difference Result 418 states and 543 transitions. [2024-11-14 02:47:25,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:47:25,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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 70 [2024-11-14 02:47:25,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:47:25,545 INFO L225 Difference]: With dead ends: 418 [2024-11-14 02:47:25,545 INFO L226 Difference]: Without dead ends: 417 [2024-11-14 02:47:25,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 02:47:25,546 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 91 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:47:25,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 85 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 02:47:25,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-14 02:47:25,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 398. [2024-11-14 02:47:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 330 states have (on average 1.293939393939394) internal successors, (427), 345 states have internal predecessors, (427), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 02:47:25,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 509 transitions. [2024-11-14 02:47:25,606 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 509 transitions. Word has length 70 [2024-11-14 02:47:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:47:25,608 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 509 transitions. [2024-11-14 02:47:25,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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 02:47:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 509 transitions. [2024-11-14 02:47:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 02:47:25,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:47:25,610 INFO L215 NwaCegarLoop]: trace histogram [8, 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 02:47:25,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-14 02:47:25,610 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:47:25,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:47:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1947274863, now seen corresponding path program 1 times [2024-11-14 02:47:25,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:47:25,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562149257] [2024-11-14 02:47:25,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:25,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:47:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:47:25,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624380128] [2024-11-14 02:47:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:25,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:47:25,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:47:25,638 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:47:25,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 02:47:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:47:25,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 02:47:25,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:47:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:47:26,640 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:47:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 02:47:29,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:47:29,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562149257] [2024-11-14 02:47:29,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:47:29,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624380128] [2024-11-14 02:47:29,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624380128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:47:29,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1654759090] [2024-11-14 02:47:29,200 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:47:29,200 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:47:29,200 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:47:29,202 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:47:29,202 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:47:30,645 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:47:30,744 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:47:31,852 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:47:31,857 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:47:49,765 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22366#(and (exists ((v_~counter~0_94 Int) (|v_ULTIMATE.start_main_~B~0#1_42| Int) (|v_ULTIMATE.start_main_~r~0#1_57| Int) (|v_ULTIMATE.start_main_~q~0#1_66| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (+ |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_57|) 9223372036854775807) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_66| (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_57|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_57|)) (= ~counter~0 (+ v_~counter~0_94 1)) (<= (* |v_ULTIMATE.start_main_~q~0#1_66| (mod |v_ULTIMATE.start_main_~B~0#1_42| 4294967296)) 9223372036854775807) (<= |v_ULTIMATE.start_main_~r~0#1_57| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 50))' at error location [2024-11-14 02:47:49,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:47:49,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 02:47:49,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-14 02:47:49,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469976007] [2024-11-14 02:47:49,766 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 02:47:49,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 02:47:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:47:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 02:47:49,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1815, Unknown=2, NotChecked=0, Total=2070 [2024-11-14 02:47:49,768 INFO L87 Difference]: Start difference. First operand 398 states and 509 transitions. Second operand has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 02:47:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:47:53,063 INFO L93 Difference]: Finished difference Result 500 states and 645 transitions. [2024-11-14 02:47:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 02:47:53,064 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 71 [2024-11-14 02:47:53,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:47:53,066 INFO L225 Difference]: With dead ends: 500 [2024-11-14 02:47:53,066 INFO L226 Difference]: Without dead ends: 499 [2024-11-14 02:47:53,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 161 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 981 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=367, Invalid=2601, Unknown=2, NotChecked=0, Total=2970 [2024-11-14 02:47:53,069 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 314 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:47:53,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 291 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 02:47:53,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-14 02:47:53,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 418. [2024-11-14 02:47:53,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 350 states have (on average 1.2971428571428572) internal successors, (454), 365 states have internal predecessors, (454), 41 states have call successors, (41), 11 states have call predecessors, (41), 11 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 02:47:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 536 transitions. [2024-11-14 02:47:53,163 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 536 transitions. Word has length 71 [2024-11-14 02:47:53,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:47:53,164 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 536 transitions. [2024-11-14 02:47:53,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 14 states have internal predecessors, (95), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-14 02:47:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 536 transitions. [2024-11-14 02:47:53,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 02:47:53,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:47:53,166 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] [2024-11-14 02:47:53,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 02:47:53,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 02:47:53,372 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:47:53,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:47:53,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1350214992, now seen corresponding path program 1 times [2024-11-14 02:47:53,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:47:53,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592842232] [2024-11-14 02:47:53,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:53,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:47:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:47:53,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768829035] [2024-11-14 02:47:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:53,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:47:53,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:47:53,440 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:47:53,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 02:47:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:47:53,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 02:47:53,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:47:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 02:47:53,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:47:54,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:47:54,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592842232] [2024-11-14 02:47:54,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:47:54,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768829035] [2024-11-14 02:47:54,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768829035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:47:54,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [452932516] [2024-11-14 02:47:54,498 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 02:47:54,498 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:47:54,498 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:47:54,498 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:47:54,498 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:47:55,939 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:47:56,040 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:47:57,242 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:47:57,247 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:48:06,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [452932516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:48:06,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:48:06,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [5] total 37 [2024-11-14 02:48:06,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985885916] [2024-11-14 02:48:06,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:48:06,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-14 02:48:06,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:48:06,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-14 02:48:06,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1474, Unknown=0, NotChecked=0, Total=1722 [2024-11-14 02:48:06,478 INFO L87 Difference]: Start difference. First operand 418 states and 536 transitions. Second operand has 34 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 02:48:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:48:17,010 INFO L93 Difference]: Finished difference Result 696 states and 940 transitions. [2024-11-14 02:48:17,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-14 02:48:17,011 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 81 [2024-11-14 02:48:17,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:48:17,014 INFO L225 Difference]: With dead ends: 696 [2024-11-14 02:48:17,014 INFO L226 Difference]: Without dead ends: 441 [2024-11-14 02:48:17,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 145 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1589 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=611, Invalid=4081, Unknown=0, NotChecked=0, Total=4692 [2024-11-14 02:48:17,017 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 187 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:48:17,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 124 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-14 02:48:17,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-14 02:48:17,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 423. [2024-11-14 02:48:17,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 356 states have (on average 1.3117977528089888) internal successors, (467), 371 states have internal predecessors, (467), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 02:48:17,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 549 transitions. [2024-11-14 02:48:17,110 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 549 transitions. Word has length 81 [2024-11-14 02:48:17,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:48:17,111 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 549 transitions. [2024-11-14 02:48:17,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-14 02:48:17,111 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 549 transitions. [2024-11-14 02:48:17,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 02:48:17,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:48:17,112 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:48:17,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 02:48:17,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 02:48:17,317 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:48:17,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:48:17,317 INFO L85 PathProgramCache]: Analyzing trace with hash -397280979, now seen corresponding path program 2 times [2024-11-14 02:48:17,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:48:17,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77664466] [2024-11-14 02:48:17,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:48:17,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:48:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:48:17,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227501906] [2024-11-14 02:48:17,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 02:48:17,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:48:17,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:48:17,355 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:48:17,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-14 02:48:17,434 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 02:48:17,434 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:48:17,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 02:48:17,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:48:32,673 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 02:48:32,674 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:48:43,680 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-14 02:48:47,720 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (div |c_ULTIMATE.start_main_~d~0#1| 2) 9223372036854775809)) (.cse3 (mod |c_ULTIMATE.start_main_~B~0#1| 4294967296))) (or (< .cse0 0) (let ((.cse2 (div |c_ULTIMATE.start_main_~p~0#1| 2))) (let ((.cse1 (forall ((|v_ULTIMATE.start_main_~q~0#1_74| Int)) (or (< 0 (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_74| .cse3))) (< |v_ULTIMATE.start_main_~q~0#1_74| (+ .cse2 |c_ULTIMATE.start_main_~q~0#1|)))))) (and (or .cse1 (not (= (mod |c_ULTIMATE.start_main_~p~0#1| 2) 0))) (or .cse1 (< |c_ULTIMATE.start_main_~p~0#1| 0)) (forall ((|v_ULTIMATE.start_main_~q~0#1_74| Int)) (or (< |v_ULTIMATE.start_main_~q~0#1_74| (+ .cse2 1 |c_ULTIMATE.start_main_~q~0#1|)) (< 0 (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_74| .cse3)))))))) (and (= .cse0 0) (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0)) (not (= |c_ULTIMATE.start_main_~d~0#1| (* |c_ULTIMATE.start_main_~p~0#1| .cse3))))) is different from true [2024-11-14 02:48:47,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:48:47,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77664466] [2024-11-14 02:48:47,722 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:48:47,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227501906] [2024-11-14 02:48:47,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227501906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:48:47,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [639084296] [2024-11-14 02:48:47,724 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:48:47,724 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:48:47,724 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:48:47,724 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:48:47,724 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:48:49,476 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:48:49,573 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:48:50,584 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:48:50,589 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:49:05,112 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25606#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~B~0#1_45| Int) (|v_ULTIMATE.start_main_~q~0#1_78| Int) (v_~counter~0_114 Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 (+ v_~counter~0_114 1)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= 0 (+ |v_ULTIMATE.start_main_~q~0#1_78| 9223372036854775808)) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_78| (mod |v_ULTIMATE.start_main_~B~0#1_45| 4294967296))) 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-14 02:49:05,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:49:05,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:49:05,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-14 02:49:05,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394077127] [2024-11-14 02:49:05,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 02:49:05,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 02:49:05,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:49:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 02:49:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=1789, Unknown=2, NotChecked=88, Total=2162 [2024-11-14 02:49:05,115 INFO L87 Difference]: Start difference. First operand 423 states and 549 transitions. Second operand has 10 states, 8 states have (on average 6.125) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 02:49:07,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:49:09,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:49:11,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:49:13,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:49:17,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:49:25,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:49:31,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:49:33,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:49:36,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:49:38,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:49:43,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:49:43,220 INFO L93 Difference]: Finished difference Result 586 states and 789 transitions. [2024-11-14 02:49:43,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 02:49:43,221 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2024-11-14 02:49:43,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:49:43,224 INFO L225 Difference]: With dead ends: 586 [2024-11-14 02:49:43,224 INFO L226 Difference]: Without dead ends: 585 [2024-11-14 02:49:43,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 140 SyntacticMatches, 6 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 37.7s TimeCoverageRelationStatistics Valid=359, Invalid=2291, Unknown=6, NotChecked=100, Total=2756 [2024-11-14 02:49:43,227 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 134 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 19 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:49:43,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 200 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 269 Invalid, 9 Unknown, 0 Unchecked, 21.6s Time] [2024-11-14 02:49:43,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-14 02:49:43,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 546. [2024-11-14 02:49:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 465 states have (on average 1.3397849462365592) internal successors, (623), 480 states have internal predecessors, (623), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 02:49:43,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 733 transitions. [2024-11-14 02:49:43,349 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 733 transitions. Word has length 88 [2024-11-14 02:49:43,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:49:43,350 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 733 transitions. [2024-11-14 02:49:43,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.125) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 02:49:43,350 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 733 transitions. [2024-11-14 02:49:43,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 02:49:43,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:43,352 INFO L215 NwaCegarLoop]: trace histogram [11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:49:43,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-14 02:49:43,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:49:43,556 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:49:43,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:49:43,556 INFO L85 PathProgramCache]: Analyzing trace with hash 569191630, now seen corresponding path program 2 times [2024-11-14 02:49:43,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:49:43,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152714172] [2024-11-14 02:49:43,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:43,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:49:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:49:43,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2013299843] [2024-11-14 02:49:43,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 02:49:43,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:49:43,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:49:43,595 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:49:43,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 02:49:43,688 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 02:49:43,688 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:49:43,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 02:49:43,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:49:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 02:49:57,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:50:01,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:01,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152714172] [2024-11-14 02:50:01,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:50:01,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013299843] [2024-11-14 02:50:01,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013299843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:50:01,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1338927592] [2024-11-14 02:50:01,938 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:50:01,938 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:50:01,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:50:01,939 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:50:01,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:50:03,630 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:50:03,746 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:50:04,913 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:50:04,918 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:50:19,156 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27326#(and (<= ~counter~0 50) (exists ((v_~counter~0_124 Int) (|v_ULTIMATE.start_main_~q~0#1_84| Int) (|v_ULTIMATE.start_main_~B~0#1_48| Int)) (and (<= |v_ULTIMATE.start_main_~q~0#1_84| 9223372036854775807) (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_84| (mod |v_ULTIMATE.start_main_~B~0#1_48| 4294967296))) (<= 0 |ULTIMATE.start_main_~r~0#1|) (= ~counter~0 (+ v_~counter~0_124 1)) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-14 02:50:19,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:50:19,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:50:19,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-14 02:50:19,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715116872] [2024-11-14 02:50:19,157 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 02:50:19,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 02:50:19,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:19,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 02:50:19,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=2002, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 02:50:19,159 INFO L87 Difference]: Start difference. First operand 546 states and 733 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 02:50:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:25,128 INFO L93 Difference]: Finished difference Result 597 states and 792 transitions. [2024-11-14 02:50:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 02:50:25,129 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2024-11-14 02:50:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:25,133 INFO L225 Difference]: With dead ends: 597 [2024-11-14 02:50:25,133 INFO L226 Difference]: Without dead ends: 596 [2024-11-14 02:50:25,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 141 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=435, Invalid=2535, Unknown=0, NotChecked=0, Total=2970 [2024-11-14 02:50:25,135 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 110 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:25,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 219 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 02:50:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-14 02:50:25,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 546. [2024-11-14 02:50:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 465 states have (on average 1.3268817204301075) internal successors, (617), 480 states have internal predecessors, (617), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-14 02:50:25,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 727 transitions. [2024-11-14 02:50:25,260 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 727 transitions. Word has length 89 [2024-11-14 02:50:25,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:25,261 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 727 transitions. [2024-11-14 02:50:25,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 02:50:25,261 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 727 transitions. [2024-11-14 02:50:25,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 02:50:25,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:25,262 INFO L215 NwaCegarLoop]: trace histogram [12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:50:25,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 02:50:25,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:50:25,463 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:50:25,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:25,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2004237768, now seen corresponding path program 1 times [2024-11-14 02:50:25,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:25,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020189470] [2024-11-14 02:50:25,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:25,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:50:25,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1160122829] [2024-11-14 02:50:25,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:25,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:50:25,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:50:25,502 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:50:25,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 02:50:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:25,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 02:50:25,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:50:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-14 02:50:26,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:50:26,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:26,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020189470] [2024-11-14 02:50:26,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:50:26,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160122829] [2024-11-14 02:50:26,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160122829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:50:26,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1675148077] [2024-11-14 02:50:26,247 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:50:26,247 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:50:26,247 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:50:26,247 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:50:26,247 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:50:27,481 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:50:27,596 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:50:28,516 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:50:28,520 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:50:36,771 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29097#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~p~0#1_160| Int) (|v_ULTIMATE.start_main_~B~0#1_49| Int)) (and (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~p~0#1_160| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296))) (= (+ (* |ULTIMATE.start_main_~q~0#1| (mod |v_ULTIMATE.start_main_~B~0#1_49| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))) (<= ~counter~0 50) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))' at error location [2024-11-14 02:50:36,772 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:50:36,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:50:36,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-14 02:50:36,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514883707] [2024-11-14 02:50:36,772 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 02:50:36,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 02:50:36,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:36,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 02:50:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1323, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 02:50:36,773 INFO L87 Difference]: Start difference. First operand 546 states and 727 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-14 02:50:37,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:37,056 INFO L93 Difference]: Finished difference Result 730 states and 956 transitions. [2024-11-14 02:50:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 02:50:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 96 [2024-11-14 02:50:37,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:37,060 INFO L225 Difference]: With dead ends: 730 [2024-11-14 02:50:37,061 INFO L226 Difference]: Without dead ends: 611 [2024-11-14 02:50:37,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 171 SyntacticMatches, 6 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=237, Invalid=1323, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 02:50:37,063 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 64 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:37,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 238 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:50:37,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-14 02:50:37,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 602. [2024-11-14 02:50:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 517 states have (on average 1.3075435203094778) internal successors, (676), 532 states have internal predecessors, (676), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-14 02:50:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 794 transitions. [2024-11-14 02:50:37,198 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 794 transitions. Word has length 96 [2024-11-14 02:50:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:37,198 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 794 transitions. [2024-11-14 02:50:37,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-14 02:50:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 794 transitions. [2024-11-14 02:50:37,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 02:50:37,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:37,200 INFO L215 NwaCegarLoop]: trace histogram [15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2024-11-14 02:50:37,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 02:50:37,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:50:37,401 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:50:37,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:37,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1037264175, now seen corresponding path program 2 times [2024-11-14 02:50:37,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:37,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551949787] [2024-11-14 02:50:37,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:37,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:37,563 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-14 02:50:37,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:37,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551949787] [2024-11-14 02:50:37,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551949787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:50:37,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470662775] [2024-11-14 02:50:37,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 02:50:37,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:50:37,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:50:37,567 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:50:37,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-14 02:50:37,637 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 02:50:37,638 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:50:37,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 02:50:37,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:50:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 14 proven. 20 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-14 02:50:38,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:50:38,421 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 14 proven. 20 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-14 02:50:38,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470662775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:50:38,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [460499532] [2024-11-14 02:50:38,423 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 02:50:38,423 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:50:38,423 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:50:38,423 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:50:38,424 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:50:39,274 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2024-11-14 02:50:39,276 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:50:43,008 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31319#(and (<= 1 |#StackHeapBarrier|) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~p~0#1_171| Int)) (and (<= (* |v_ULTIMATE.start_main_~p~0#1_171| (mod |ULTIMATE.start_main_~B~0#1| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (<= 4611686018427387904 |v_ULTIMATE.start_main_~p~0#1_171|) (= (* 2 (* |v_ULTIMATE.start_main_~p~0#1_171| (mod |ULTIMATE.start_main_~B~0#1| 4294967296))) |ULTIMATE.start_main_~d~0#1|))) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~r~0#1| (mod |ULTIMATE.start_main_~A~0#1| 4294967296)))' at error location [2024-11-14 02:50:43,008 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:50:43,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:50:43,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-14 02:50:43,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051753550] [2024-11-14 02:50:43,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:50:43,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 02:50:43,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:43,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 02:50:43,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2024-11-14 02:50:43,010 INFO L87 Difference]: Start difference. First operand 602 states and 794 transitions. Second operand has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-14 02:50:44,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:44,918 INFO L93 Difference]: Finished difference Result 1434 states and 1967 transitions. [2024-11-14 02:50:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 02:50:44,919 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) Word has length 101 [2024-11-14 02:50:44,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:44,924 INFO L225 Difference]: With dead ends: 1434 [2024-11-14 02:50:44,924 INFO L226 Difference]: Without dead ends: 1430 [2024-11-14 02:50:44,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 276 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=300, Invalid=1260, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 02:50:44,926 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 537 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:44,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 252 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 02:50:44,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1430 states. [2024-11-14 02:50:45,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1430 to 1141. [2024-11-14 02:50:45,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1005 states have (on average 1.317412935323383) internal successors, (1324), 1019 states have internal predecessors, (1324), 111 states have call successors, (111), 10 states have call predecessors, (111), 10 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2024-11-14 02:50:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1546 transitions. [2024-11-14 02:50:45,172 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1546 transitions. Word has length 101 [2024-11-14 02:50:45,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:45,173 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1546 transitions. [2024-11-14 02:50:45,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (20), 8 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-14 02:50:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1546 transitions. [2024-11-14 02:50:45,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 02:50:45,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:45,176 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-14 02:50:45,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-14 02:50:45,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:50:45,381 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:50:45,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:45,382 INFO L85 PathProgramCache]: Analyzing trace with hash -457717349, now seen corresponding path program 1 times [2024-11-14 02:50:45,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:45,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312622655] [2024-11-14 02:50:45,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:45,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-14 02:50:45,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:45,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312622655] [2024-11-14 02:50:45,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312622655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:50:45,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136058801] [2024-11-14 02:50:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:45,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:50:45,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:50:45,755 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:50:45,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-14 02:50:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:45,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 02:50:45,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:50:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 34 proven. 20 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:50:46,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:50:48,715 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:50:48,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136058801] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:50:48,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [103219921] [2024-11-14 02:50:48,717 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:50:48,718 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:50:48,718 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:50:48,718 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:50:48,718 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:50:50,536 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:50:50,682 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:50:51,746 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:50:51,750 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:51:12,220 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '35023#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= ~counter~0 50))' at error location [2024-11-14 02:51:12,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:51:12,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:51:12,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-14 02:51:12,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058936447] [2024-11-14 02:51:12,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:51:12,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 02:51:12,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:12,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 02:51:12,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=2270, Unknown=1, NotChecked=0, Total=2550 [2024-11-14 02:51:12,223 INFO L87 Difference]: Start difference. First operand 1141 states and 1546 transitions. Second operand has 19 states, 18 states have (on average 10.444444444444445) internal successors, (188), 19 states have internal predecessors, (188), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-14 02:51:15,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:15,805 INFO L93 Difference]: Finished difference Result 2297 states and 3226 transitions. [2024-11-14 02:51:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 02:51:15,806 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.444444444444445) internal successors, (188), 19 states have internal predecessors, (188), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 107 [2024-11-14 02:51:15,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:15,814 INFO L225 Difference]: With dead ends: 2297 [2024-11-14 02:51:15,814 INFO L226 Difference]: Without dead ends: 2295 [2024-11-14 02:51:15,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 270 SyntacticMatches, 8 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1823 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=650, Invalid=4319, Unknown=1, NotChecked=0, Total=4970 [2024-11-14 02:51:15,817 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 1304 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:15,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 957 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 02:51:15,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2024-11-14 02:51:16,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 1578. [2024-11-14 02:51:16,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1388 states have (on average 1.335014409221902) internal successors, (1853), 1402 states have internal predecessors, (1853), 165 states have call successors, (165), 10 states have call predecessors, (165), 10 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-14 02:51:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2183 transitions. [2024-11-14 02:51:16,057 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2183 transitions. Word has length 107 [2024-11-14 02:51:16,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:16,058 INFO L471 AbstractCegarLoop]: Abstraction has 1578 states and 2183 transitions. [2024-11-14 02:51:16,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.444444444444445) internal successors, (188), 19 states have internal predecessors, (188), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-14 02:51:16,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2183 transitions. [2024-11-14 02:51:16,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 02:51:16,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:16,062 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-14 02:51:16,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-14 02:51:16,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-14 02:51:16,263 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:51:16,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:16,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1304335808, now seen corresponding path program 1 times [2024-11-14 02:51:16,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:16,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045631142] [2024-11-14 02:51:16,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:16,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:16,676 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-14 02:51:16,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:16,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045631142] [2024-11-14 02:51:16,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045631142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:51:16,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83180595] [2024-11-14 02:51:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:16,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:51:16,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:51:16,680 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:51:16,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 02:51:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:16,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 02:51:16,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:51:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:51:17,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:51:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:51:21,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83180595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:51:21,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1575043666] [2024-11-14 02:51:21,105 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:51:21,105 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:51:21,105 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:51:21,105 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:51:21,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:51:22,558 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:51:22,650 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:51:23,640 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:51:23,645 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:51:31,792 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40278#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= ~counter~0 50) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 02:51:31,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:51:31,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:51:31,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-14 02:51:31,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105840677] [2024-11-14 02:51:31,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:51:31,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 02:51:31,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:31,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 02:51:31,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=2285, Unknown=0, NotChecked=0, Total=2652 [2024-11-14 02:51:31,794 INFO L87 Difference]: Start difference. First operand 1578 states and 2183 transitions. Second operand has 21 states, 20 states have (on average 9.95) internal successors, (199), 21 states have internal predecessors, (199), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-14 02:51:32,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:32,693 INFO L93 Difference]: Finished difference Result 1950 states and 2753 transitions. [2024-11-14 02:51:32,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 02:51:32,693 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 9.95) internal successors, (199), 21 states have internal predecessors, (199), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 108 [2024-11-14 02:51:32,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:32,698 INFO L225 Difference]: With dead ends: 1950 [2024-11-14 02:51:32,698 INFO L226 Difference]: Without dead ends: 1940 [2024-11-14 02:51:32,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 274 SyntacticMatches, 7 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=440, Invalid=2640, Unknown=0, NotChecked=0, Total=3080 [2024-11-14 02:51:32,699 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 438 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:32,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 326 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 02:51:32,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2024-11-14 02:51:32,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1468. [2024-11-14 02:51:32,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1292 states have (on average 1.2763157894736843) internal successors, (1649), 1304 states have internal predecessors, (1649), 153 states have call successors, (153), 10 states have call predecessors, (153), 10 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-14 02:51:32,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1955 transitions. [2024-11-14 02:51:32,943 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1955 transitions. Word has length 108 [2024-11-14 02:51:32,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:32,943 INFO L471 AbstractCegarLoop]: Abstraction has 1468 states and 1955 transitions. [2024-11-14 02:51:32,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 9.95) internal successors, (199), 21 states have internal predecessors, (199), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-14 02:51:32,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1955 transitions. [2024-11-14 02:51:32,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-14 02:51:32,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:32,945 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-14 02:51:32,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 02:51:33,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-14 02:51:33,145 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:51:33,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:33,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1779704259, now seen corresponding path program 1 times [2024-11-14 02:51:33,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:33,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362830207] [2024-11-14 02:51:33,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:33,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:33,478 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:51:33,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:33,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362830207] [2024-11-14 02:51:33,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362830207] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:51:33,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336757534] [2024-11-14 02:51:33,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:33,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:51:33,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:51:33,480 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:51:33,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 02:51:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:33,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 02:51:33,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:51:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:51:33,999 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:51:36,270 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:51:36,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336757534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:51:36,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [776732468] [2024-11-14 02:51:36,271 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:51:36,272 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:51:36,272 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:51:36,272 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:51:36,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:51:37,650 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:51:37,742 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:51:38,746 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:51:38,750 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:51:52,419 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '44978#(and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= ~counter~0 50) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))' at error location [2024-11-14 02:51:52,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:51:52,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:51:52,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-14 02:51:52,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629215258] [2024-11-14 02:51:52,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:51:52,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 02:51:52,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:52,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 02:51:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=2393, Unknown=1, NotChecked=0, Total=2756 [2024-11-14 02:51:52,421 INFO L87 Difference]: Start difference. First operand 1468 states and 1955 transitions. Second operand has 22 states, 21 states have (on average 10.047619047619047) internal successors, (211), 22 states have internal predecessors, (211), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-14 02:51:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:54,476 INFO L93 Difference]: Finished difference Result 1565 states and 2076 transitions. [2024-11-14 02:51:54,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 02:51:54,477 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.047619047619047) internal successors, (211), 22 states have internal predecessors, (211), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 109 [2024-11-14 02:51:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:54,481 INFO L225 Difference]: With dead ends: 1565 [2024-11-14 02:51:54,481 INFO L226 Difference]: Without dead ends: 1564 [2024-11-14 02:51:54,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 276 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1889 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=551, Invalid=3230, Unknown=1, NotChecked=0, Total=3782 [2024-11-14 02:51:54,482 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 315 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:54,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 661 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 02:51:54,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2024-11-14 02:51:54,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1500. [2024-11-14 02:51:54,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1320 states have (on average 1.2704545454545455) internal successors, (1677), 1332 states have internal predecessors, (1677), 157 states have call successors, (157), 10 states have call predecessors, (157), 10 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-14 02:51:54,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1991 transitions. [2024-11-14 02:51:54,792 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1991 transitions. Word has length 109 [2024-11-14 02:51:54,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:54,793 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1991 transitions. [2024-11-14 02:51:54,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.047619047619047) internal successors, (211), 22 states have internal predecessors, (211), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-14 02:51:54,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1991 transitions. [2024-11-14 02:51:54,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 02:51:54,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:54,794 INFO L215 NwaCegarLoop]: trace histogram [13, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:51:54,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 02:51:54,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-14 02:51:54,995 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:51:54,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:54,996 INFO L85 PathProgramCache]: Analyzing trace with hash 910908029, now seen corresponding path program 1 times [2024-11-14 02:51:54,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:54,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606481296] [2024-11-14 02:51:54,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:54,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:51:55,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:55,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606481296] [2024-11-14 02:51:55,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606481296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:51:55,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099481076] [2024-11-14 02:51:55,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:55,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:51:55,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:51:55,359 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:51:55,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-14 02:51:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:55,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 02:51:55,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:51:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 02:51:55,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:51:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:51:56,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099481076] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:51:56,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [253763905] [2024-11-14 02:51:56,209 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 02:51:56,209 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:51:56,210 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:51:56,210 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:51:56,210 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:51:58,855 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:51:58,861 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:52:06,205 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49293#(and (exists ((|v_ULTIMATE.start_main_~d~0#1_231| Int) (|v_ULTIMATE.start_main_~q~0#1_111| Int) (v_~counter~0_203 Int)) (and (<= 1 |#StackHeapBarrier|) (<= v_~counter~0_203 50) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_111| |v_ULTIMATE.start_main_~d~0#1_231|)) 0) (= ~counter~0 (+ v_~counter~0_203 1)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807))) (<= 51 ~counter~0))' at error location [2024-11-14 02:52:06,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:52:06,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:52:06,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 29 [2024-11-14 02:52:06,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040681172] [2024-11-14 02:52:06,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:52:06,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-14 02:52:06,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:52:06,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-14 02:52:06,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=3388, Unknown=0, NotChecked=0, Total=3782 [2024-11-14 02:52:06,209 INFO L87 Difference]: Start difference. First operand 1500 states and 1991 transitions. Second operand has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-14 02:52:07,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:52:07,312 INFO L93 Difference]: Finished difference Result 1559 states and 2033 transitions. [2024-11-14 02:52:07,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-14 02:52:07,313 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) Word has length 110 [2024-11-14 02:52:07,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:52:07,316 INFO L225 Difference]: With dead ends: 1559 [2024-11-14 02:52:07,316 INFO L226 Difference]: Without dead ends: 1003 [2024-11-14 02:52:07,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 275 SyntacticMatches, 8 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3224 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=818, Invalid=6492, Unknown=0, NotChecked=0, Total=7310 [2024-11-14 02:52:07,319 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 155 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:52:07,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 588 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:52:07,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-14 02:52:07,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 992. [2024-11-14 02:52:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 862 states have (on average 1.2331786542923433) internal successors, (1063), 874 states have internal predecessors, (1063), 101 states have call successors, (101), 16 states have call predecessors, (101), 16 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-14 02:52:07,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1265 transitions. [2024-11-14 02:52:07,478 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1265 transitions. Word has length 110 [2024-11-14 02:52:07,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:52:07,478 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1265 transitions. [2024-11-14 02:52:07,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.241379310344827) internal successors, (152), 29 states have internal predecessors, (152), 10 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 10 states have call predecessors, (39), 10 states have call successors, (39) [2024-11-14 02:52:07,478 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1265 transitions. [2024-11-14 02:52:07,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-14 02:52:07,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:52:07,480 INFO L215 NwaCegarLoop]: trace histogram [13, 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, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 02:52:07,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-14 02:52:07,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-14 02:52:07,684 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:52:07,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:52:07,685 INFO L85 PathProgramCache]: Analyzing trace with hash 93416806, now seen corresponding path program 3 times [2024-11-14 02:52:07,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:52:07,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233394291] [2024-11-14 02:52:07,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:52:07,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:52:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:52:07,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123478528] [2024-11-14 02:52:07,744 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 02:52:07,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:52:07,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:52:07,748 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:52:07,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 02:52:07,844 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 02:52:07,844 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:52:07,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 02:52:07,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:52:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:52:08,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:52:09,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:52:09,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233394291] [2024-11-14 02:52:09,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:52:09,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123478528] [2024-11-14 02:52:09,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123478528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:52:09,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [653482806] [2024-11-14 02:52:09,123 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:52:09,123 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:52:09,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:52:09,123 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:52:09,124 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:52:10,757 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:52:10,914 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:52:11,828 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:52:11,833 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:52:27,084 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '52793#(and (exists ((|v_ULTIMATE.start_main_~q~0#1_118| Int) (|v_ULTIMATE.start_main_~B~0#1_52| Int) (v_~counter~0_213 Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_118| 9223372036854775807) (= ~counter~0 (+ v_~counter~0_213 1)) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~q~0#1_118| (mod |v_ULTIMATE.start_main_~B~0#1_52| 4294967296))) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 50))' at error location [2024-11-14 02:52:27,084 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:52:27,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:52:27,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 02:52:27,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597138248] [2024-11-14 02:52:27,085 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 02:52:27,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:52:27,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:52:27,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:52:27,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 02:52:27,086 INFO L87 Difference]: Start difference. First operand 992 states and 1265 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 02:52:27,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:52:27,597 INFO L93 Difference]: Finished difference Result 996 states and 1265 transitions. [2024-11-14 02:52:27,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 02:52:27,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2024-11-14 02:52:27,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:52:27,600 INFO L225 Difference]: With dead ends: 996 [2024-11-14 02:52:27,601 INFO L226 Difference]: Without dead ends: 995 [2024-11-14 02:52:27,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 197 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=269, Invalid=1537, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 02:52:27,601 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 36 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:52:27,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 323 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:52:27,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-14 02:52:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 992. [2024-11-14 02:52:27,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 862 states have (on average 1.2320185614849188) internal successors, (1062), 874 states have internal predecessors, (1062), 101 states have call successors, (101), 16 states have call predecessors, (101), 16 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-14 02:52:27,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1264 transitions. [2024-11-14 02:52:27,744 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1264 transitions. Word has length 115 [2024-11-14 02:52:27,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:52:27,744 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1264 transitions. [2024-11-14 02:52:27,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-14 02:52:27,745 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1264 transitions. [2024-11-14 02:52:27,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 02:52:27,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:52:27,746 INFO L215 NwaCegarLoop]: trace histogram [13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-14 02:52:27,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-14 02:52:27,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-14 02:52:27,946 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:52:27,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:52:27,947 INFO L85 PathProgramCache]: Analyzing trace with hash -420759672, now seen corresponding path program 2 times [2024-11-14 02:52:27,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:52:27,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143440161] [2024-11-14 02:52:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:52:27,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:52:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:52:27,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108060819] [2024-11-14 02:52:27,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 02:52:27,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:52:27,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:52:27,982 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:52:27,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-14 02:52:28,072 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 02:52:28,072 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:52:28,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 02:52:28,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:52:30,005 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:52:30,005 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:54:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-14 02:54:15,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:54:15,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143440161] [2024-11-14 02:54:15,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:54:15,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108060819] [2024-11-14 02:54:15,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108060819] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:54:15,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [868455905] [2024-11-14 02:54:15,787 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:54:15,789 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:54:15,790 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:54:15,790 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:54:15,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:54:17,078 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:54:17,174 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:54:18,424 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:54:18,429 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:54:50,085 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '55909#(and (exists ((|v_ULTIMATE.start_main_~B~0#1_53| Int) (v_~counter~0_228 Int) (|v_ULTIMATE.start_main_~q~0#1_126| Int) (|v_ULTIMATE.start_main_~r~0#1_107| Int)) (and (<= 1 |#StackHeapBarrier|) (<= (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~q~0#1_126|) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_107|) 9223372036854775807) (<= 9223372036854775808 (+ (* (mod |v_ULTIMATE.start_main_~B~0#1_53| 4294967296) |v_ULTIMATE.start_main_~q~0#1_126|) |v_ULTIMATE.start_main_~r~0#1_107|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_107|)) (= ~counter~0 (+ v_~counter~0_228 1)) (<= |v_ULTIMATE.start_main_~r~0#1_107| 9223372036854775807) (<= 3 ~counter~0))) (<= ~counter~0 50))' at error location [2024-11-14 02:54:50,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:54:50,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 02:54:50,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-14 02:54:50,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189227251] [2024-11-14 02:54:50,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 02:54:50,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 02:54:50,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:54:50,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 02:54:50,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=2920, Unknown=6, NotChecked=0, Total=3306 [2024-11-14 02:54:50,088 INFO L87 Difference]: Start difference. First operand 992 states and 1264 transitions. Second operand has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-14 02:55:04,152 WARN L286 SmtUtils]: Spent 13.45s on a formula simplification. DAG size of input: 190 DAG size of output: 71 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:55:14,776 WARN L286 SmtUtils]: Spent 7.51s on a formula simplification. DAG size of input: 154 DAG size of output: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:55:17,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:55:28,445 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification. DAG size of input: 136 DAG size of output: 111 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:55:43,208 WARN L286 SmtUtils]: Spent 9.69s on a formula simplification. DAG size of input: 194 DAG size of output: 76 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:55:46,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:56:01,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:56:04,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:56:06,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:56:17,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-14 02:56:22,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:56:22,927 INFO L93 Difference]: Finished difference Result 1013 states and 1290 transitions. [2024-11-14 02:56:22,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-14 02:56:22,928 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 117 [2024-11-14 02:56:22,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:56:22,932 INFO L225 Difference]: With dead ends: 1013 [2024-11-14 02:56:22,932 INFO L226 Difference]: Without dead ends: 956 [2024-11-14 02:56:22,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 285 SyntacticMatches, 9 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1493 ImplicationChecksByTransitivity, 103.8s TimeCoverageRelationStatistics Valid=665, Invalid=4438, Unknown=9, NotChecked=0, Total=5112 [2024-11-14 02:56:22,934 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 263 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2024-11-14 02:56:22,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 650 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1455 Invalid, 1 Unknown, 0 Unchecked, 25.9s Time] [2024-11-14 02:56:22,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-14 02:56:23,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 940. [2024-11-14 02:56:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 816 states have (on average 1.2450980392156863) internal successors, (1016), 828 states have internal predecessors, (1016), 97 states have call successors, (97), 14 states have call predecessors, (97), 14 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-14 02:56:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1210 transitions. [2024-11-14 02:56:23,136 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1210 transitions. Word has length 117 [2024-11-14 02:56:23,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:56:23,137 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1210 transitions. [2024-11-14 02:56:23,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.28) internal successors, (157), 26 states have internal predecessors, (157), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2024-11-14 02:56:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1210 transitions. [2024-11-14 02:56:23,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-14 02:56:23,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:56:23,138 INFO L215 NwaCegarLoop]: trace histogram [17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2024-11-14 02:56:23,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-14 02:56:23,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-14 02:56:23,339 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:56:23,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:56:23,339 INFO L85 PathProgramCache]: Analyzing trace with hash 98198318, now seen corresponding path program 3 times [2024-11-14 02:56:23,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:56:23,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016684575] [2024-11-14 02:56:23,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:56:23,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:56:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:56:23,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521446613] [2024-11-14 02:56:23,390 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 02:56:23,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:56:23,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:56:23,394 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:56:23,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-14 02:56:23,495 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 02:56:23,495 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:56:23,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-14 02:56:23,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:56:25,424 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 02:56:25,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:56:30,624 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 02:56:30,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:56:30,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016684575] [2024-11-14 02:56:30,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:56:30,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521446613] [2024-11-14 02:56:30,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521446613] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:56:30,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [139952171] [2024-11-14 02:56:30,626 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:56:30,626 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:56:30,626 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:56:30,626 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:56:30,626 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:56:31,934 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:56:32,043 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:56:32,972 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:56:32,977 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:56:50,442 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '59098#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~r~0#1_113| Int) (|v_ULTIMATE.start_main_~B~0#1_54| Int) (v_~counter~0_244 Int) (|v_ULTIMATE.start_main_~q~0#1_132| Int)) (and (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~q~0#1_132| (mod |v_ULTIMATE.start_main_~B~0#1_54| 4294967296)) |v_ULTIMATE.start_main_~r~0#1_113|)) (<= 1 |#StackHeapBarrier|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_113|)) (= ~counter~0 (+ v_~counter~0_244 1)) (<= |v_ULTIMATE.start_main_~r~0#1_113| 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~q~0#1_132| (mod |v_ULTIMATE.start_main_~B~0#1_54| 4294967296)) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_113|) 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-14 02:56:50,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:56:50,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 02:56:50,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2024-11-14 02:56:50,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764024674] [2024-11-14 02:56:50,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 02:56:50,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-14 02:56:50,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:56:50,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-14 02:56:50,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=437, Invalid=3343, Unknown=2, NotChecked=0, Total=3782 [2024-11-14 02:56:50,444 INFO L87 Difference]: Start difference. First operand 940 states and 1210 transitions. Second operand has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 30 states have internal predecessors, (161), 12 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-14 02:57:19,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:57:19,748 INFO L93 Difference]: Finished difference Result 1166 states and 1486 transitions. [2024-11-14 02:57:19,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-14 02:57:19,749 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 30 states have internal predecessors, (161), 12 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) Word has length 131 [2024-11-14 02:57:19,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:57:19,753 INFO L225 Difference]: With dead ends: 1166 [2024-11-14 02:57:19,753 INFO L226 Difference]: Without dead ends: 1165 [2024-11-14 02:57:19,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 323 SyntacticMatches, 8 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2595 ImplicationChecksByTransitivity, 35.1s TimeCoverageRelationStatistics Valid=1168, Invalid=7760, Unknown=2, NotChecked=0, Total=8930 [2024-11-14 02:57:19,755 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 913 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:57:19,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 1050 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2024-11-14 02:57:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2024-11-14 02:57:19,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1044. [2024-11-14 02:57:19,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 905 states have (on average 1.230939226519337) internal successors, (1114), 917 states have internal predecessors, (1114), 112 states have call successors, (112), 14 states have call predecessors, (112), 14 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 02:57:19,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1338 transitions. [2024-11-14 02:57:19,960 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1338 transitions. Word has length 131 [2024-11-14 02:57:19,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:57:19,961 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1338 transitions. [2024-11-14 02:57:19,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 30 states have internal predecessors, (161), 12 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2024-11-14 02:57:19,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1338 transitions. [2024-11-14 02:57:19,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 02:57:19,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:57:19,963 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-14 02:57:19,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-14 02:57:20,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-14 02:57:20,163 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:57:20,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:57:20,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1318807109, now seen corresponding path program 4 times [2024-11-14 02:57:20,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:57:20,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105655551] [2024-11-14 02:57:20,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:57:20,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:57:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:57:20,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2046751975] [2024-11-14 02:57:20,210 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 02:57:20,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:57:20,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:57:20,212 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:57:20,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 02:57:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:57:20,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 02:57:20,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:57:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-14 02:57:21,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:57:21,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:57:21,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105655551] [2024-11-14 02:57:21,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:57:21,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046751975] [2024-11-14 02:57:21,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046751975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:57:21,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1149882885] [2024-11-14 02:57:21,819 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:57:21,819 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:57:21,819 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:57:21,819 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:57:21,819 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:57:22,998 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:57:23,075 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:57:23,794 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:57:23,798 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:57:35,462 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '62286#(and (<= ~counter~0 50) (exists ((|v_ULTIMATE.start_main_~q~0#1_139| Int) (|v_ULTIMATE.start_main_~B~0#1_55| Int) (v_~counter~0_254 Int)) (and (<= 1 |#StackHeapBarrier|) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_55| 4294967296) |v_ULTIMATE.start_main_~q~0#1_139|)) (<= 0 |ULTIMATE.start_main_~r~0#1|) (= ~counter~0 (+ v_~counter~0_254 1)) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= |v_ULTIMATE.start_main_~q~0#1_139| 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))))' at error location [2024-11-14 02:57:35,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:57:35,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:57:35,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-14 02:57:35,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791756949] [2024-11-14 02:57:35,462 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 02:57:35,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 02:57:35,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:57:35,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 02:57:35,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=1616, Unknown=1, NotChecked=0, Total=1892 [2024-11-14 02:57:35,464 INFO L87 Difference]: Start difference. First operand 1044 states and 1338 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-14 02:57:35,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:57:35,951 INFO L93 Difference]: Finished difference Result 1117 states and 1427 transitions. [2024-11-14 02:57:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 02:57:35,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 135 [2024-11-14 02:57:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:57:35,954 INFO L225 Difference]: With dead ends: 1117 [2024-11-14 02:57:35,954 INFO L226 Difference]: Without dead ends: 1115 [2024-11-14 02:57:35,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 235 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=275, Invalid=1616, Unknown=1, NotChecked=0, Total=1892 [2024-11-14 02:57:35,955 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 59 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:57:35,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 390 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:57:35,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2024-11-14 02:57:36,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1096. [2024-11-14 02:57:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 953 states have (on average 1.224554039874082) internal successors, (1167), 965 states have internal predecessors, (1167), 116 states have call successors, (116), 14 states have call predecessors, (116), 14 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-14 02:57:36,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1399 transitions. [2024-11-14 02:57:36,142 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1399 transitions. Word has length 135 [2024-11-14 02:57:36,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:57:36,143 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1399 transitions. [2024-11-14 02:57:36,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-14 02:57:36,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1399 transitions. [2024-11-14 02:57:36,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-14 02:57:36,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:57:36,145 INFO L215 NwaCegarLoop]: trace histogram [18, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:57:36,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 02:57:36,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:57:36,345 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:57:36,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:57:36,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1573627744, now seen corresponding path program 2 times [2024-11-14 02:57:36,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:57:36,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963178768] [2024-11-14 02:57:36,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:57:36,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:57:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:57:36,873 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-14 02:57:36,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:57:36,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963178768] [2024-11-14 02:57:36,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963178768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:57:36,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104457862] [2024-11-14 02:57:36,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 02:57:36,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:57:36,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:57:36,876 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:57:36,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-14 02:57:37,664 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-14 02:57:37,664 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:57:37,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 02:57:37,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:57:37,876 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 414 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-14 02:57:37,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:57:38,379 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-14 02:57:38,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104457862] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:57:38,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1764724640] [2024-11-14 02:57:38,380 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2024-11-14 02:57:38,380 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:57:38,380 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:57:38,380 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:57:38,380 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:57:40,430 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:57:40,435 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:57:54,355 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '65884#(exists ((|v_ULTIMATE.start_main_~d~0#1_300| Int) (v_~counter~0_273 Int) (|v_ULTIMATE.start_main_~q~0#1_146| Int)) (and (<= 1 |#StackHeapBarrier|) (= ~counter~0 51) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~q~0#1_146| |v_ULTIMATE.start_main_~d~0#1_300|)) 0) (= v_~counter~0_273 50) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807)))' at error location [2024-11-14 02:57:54,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:57:54,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:57:54,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 37 [2024-11-14 02:57:54,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859677297] [2024-11-14 02:57:54,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:57:54,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-14 02:57:54,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:57:54,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-14 02:57:54,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=4327, Unknown=2, NotChecked=0, Total=4830 [2024-11-14 02:57:54,357 INFO L87 Difference]: Start difference. First operand 1096 states and 1399 transitions. Second operand has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 14 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-14 02:57:55,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:57:55,854 INFO L93 Difference]: Finished difference Result 2227 states and 2830 transitions. [2024-11-14 02:57:55,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-14 02:57:55,855 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 14 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) Word has length 152 [2024-11-14 02:57:55,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:57:55,859 INFO L225 Difference]: With dead ends: 2227 [2024-11-14 02:57:55,859 INFO L226 Difference]: Without dead ends: 1940 [2024-11-14 02:57:55,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 394 SyntacticMatches, 11 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4749 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=1286, Invalid=9424, Unknown=2, NotChecked=0, Total=10712 [2024-11-14 02:57:55,861 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 253 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 02:57:55,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 891 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 02:57:55,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2024-11-14 02:57:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1918. [2024-11-14 02:57:56,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1918 states, 1694 states have (on average 1.1829988193624557) internal successors, (2004), 1706 states have internal predecessors, (2004), 188 states have call successors, (188), 23 states have call predecessors, (188), 23 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-14 02:57:56,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 2380 transitions. [2024-11-14 02:57:56,234 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 2380 transitions. Word has length 152 [2024-11-14 02:57:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:57:56,235 INFO L471 AbstractCegarLoop]: Abstraction has 1918 states and 2380 transitions. [2024-11-14 02:57:56,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.621621621621622) internal successors, (208), 37 states have internal predecessors, (208), 14 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-14 02:57:56,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 2380 transitions. [2024-11-14 02:57:56,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 02:57:56,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:57:56,237 INFO L215 NwaCegarLoop]: trace histogram [21, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2024-11-14 02:57:56,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-14 02:57:56,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:57:56,438 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:57:56,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:57:56,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2078533323, now seen corresponding path program 2 times [2024-11-14 02:57:56,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:57:56,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998516190] [2024-11-14 02:57:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:57:56,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:57:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:57:56,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388080117] [2024-11-14 02:57:56,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 02:57:56,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:57:56,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:57:56,476 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:57:56,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-14 02:57:56,543 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 02:57:56,543 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:57:56,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 02:57:56,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:57:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-11-14 02:57:57,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:57:57,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:57:57,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998516190] [2024-11-14 02:57:57,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 02:57:57,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388080117] [2024-11-14 02:57:57,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388080117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:57:57,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [790115349] [2024-11-14 02:57:57,752 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2024-11-14 02:57:57,752 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:57:57,752 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:57:57,752 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:57:57,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:57:58,778 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:57:58,855 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-14 02:57:59,596 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2024-11-14 02:57:59,601 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:58:13,761 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '71415#(and (exists ((|v_ULTIMATE.start_main_~p~0#1_308| Int) (|v_ULTIMATE.start_main_~B~0#1_58| Int)) (and (= (+ (* |ULTIMATE.start_main_~q~0#1| (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296)) |ULTIMATE.start_main_~r~0#1|) (mod |ULTIMATE.start_main_~A~0#1| 4294967296)) (<= 9223372036854775808 (* (mod |v_ULTIMATE.start_main_~B~0#1_58| 4294967296) |v_ULTIMATE.start_main_~p~0#1_308|)))) (<= 1 |#StackHeapBarrier|) (<= ~counter~0 50) (<= 0 |ULTIMATE.start_main_~r~0#1|) (<= (+ |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|) 9223372036854775807) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~d~0#1| |ULTIMATE.start_main_~r~0#1|)) (<= |ULTIMATE.start_main_~r~0#1| 9223372036854775807) (<= 3 ~counter~0))' at error location [2024-11-14 02:58:13,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:58:13,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:58:13,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-14 02:58:13,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711828898] [2024-11-14 02:58:13,761 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-14 02:58:13,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 02:58:13,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:58:13,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 02:58:13,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1703, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 02:58:13,763 INFO L87 Difference]: Start difference. First operand 1918 states and 2380 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 02:58:17,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-14 02:58:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:58:17,487 INFO L93 Difference]: Finished difference Result 1975 states and 2451 transitions. [2024-11-14 02:58:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 02:58:17,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 156 [2024-11-14 02:58:17,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:58:17,494 INFO L225 Difference]: With dead ends: 1975 [2024-11-14 02:58:17,495 INFO L226 Difference]: Without dead ends: 1973 [2024-11-14 02:58:17,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 283 SyntacticMatches, 9 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=313, Invalid=2039, Unknown=0, NotChecked=0, Total=2352 [2024-11-14 02:58:17,496 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:58:17,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 228 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-14 02:58:17,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2024-11-14 02:58:17,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1531. [2024-11-14 02:58:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1342 states have (on average 1.1520119225037257) internal successors, (1546), 1353 states have internal predecessors, (1546), 154 states have call successors, (154), 23 states have call predecessors, (154), 23 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-14 02:58:17,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 1854 transitions. [2024-11-14 02:58:17,818 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 1854 transitions. Word has length 156 [2024-11-14 02:58:17,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:58:17,819 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 1854 transitions. [2024-11-14 02:58:17,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 02:58:17,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1854 transitions. [2024-11-14 02:58:17,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-14 02:58:17,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:58:17,821 INFO L215 NwaCegarLoop]: trace histogram [19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2024-11-14 02:58:17,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-14 02:58:18,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:58:18,021 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-14 02:58:18,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:58:18,022 INFO L85 PathProgramCache]: Analyzing trace with hash -533251676, now seen corresponding path program 5 times [2024-11-14 02:58:18,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:58:18,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544560555] [2024-11-14 02:58:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:18,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:58:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 02:58:18,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1864937962] [2024-11-14 02:58:18,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 02:58:18,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:58:18,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:58:18,055 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:58:18,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab92a90c-0663-4f9d-9fd6-04ba190aeef4/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 02:58:18,241 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 02:58:18,241 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:58:18,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 02:58:18,244 INFO L278 TraceCheckSpWp]: Computing forward predicates...