./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 76fcbcb67039c0a78cfe1723cb1895d2882967fdc056ee8f9638db41d873b34f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:02:12,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:02:12,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 04:02:12,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:02:12,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:02:12,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:02:12,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:02:12,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:02:12,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:02:12,504 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:02:12,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:02:12,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:02:12,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:02:12,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:02:12,507 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:02:12,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:02:12,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:02:12,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:02:12,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:02:12,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:02:12,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:02:12,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:02:12,511 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:02:12,512 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:02:12,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:02:12,513 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:02:12,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:02:12,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:02:12,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:02:12,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:02:12,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:02:12,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:02:12,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:02:12,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:02:12,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:02:12,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:02:12,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:02:12,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:02:12,516 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:02:12,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:02:12,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:02:12,517 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76fcbcb67039c0a78cfe1723cb1895d2882967fdc056ee8f9638db41d873b34f [2023-11-29 04:02:12,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:02:12,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:02:12,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:02:12,751 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:02:12,751 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:02:12,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-crafted/Cairo_step2-2.c [2023-11-29 04:02:15,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:02:15,749 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:02:15,749 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/sv-benchmarks/c/termination-crafted/Cairo_step2-2.c [2023-11-29 04:02:15,755 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/data/a1ede7b8d/88a24c7703d142049d3b7986390da4f7/FLAG124b43e65 [2023-11-29 04:02:15,767 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/data/a1ede7b8d/88a24c7703d142049d3b7986390da4f7 [2023-11-29 04:02:15,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:02:15,770 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:02:15,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:02:15,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:02:15,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:02:15,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:15,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4f2346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15, skipping insertion in model container [2023-11-29 04:02:15,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:15,804 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:02:15,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:02:15,931 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:02:15,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:02:15,954 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:02:15,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15 WrapperNode [2023-11-29 04:02:15,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:02:15,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:02:15,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:02:15,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:02:15,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:15,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:15,988 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-11-29 04:02:15,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:02:15,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:02:15,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:02:15,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:02:16,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,010 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 04:02:16,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,018 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:02:16,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:02:16,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:02:16,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:02:16,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (1/1) ... [2023-11-29 04:02:16,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:02:16,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:16,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:02:16,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:02:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:02:16,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:02:16,158 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:02:16,160 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:02:16,220 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:02:16,239 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:02:16,240 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:02:16,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:02:16 BoogieIcfgContainer [2023-11-29 04:02:16,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:02:16,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:02:16,244 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:02:16,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:02:16,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:02:15" (1/3) ... [2023-11-29 04:02:16,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104a9079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:02:16, skipping insertion in model container [2023-11-29 04:02:16,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:02:15" (2/3) ... [2023-11-29 04:02:16,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104a9079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:02:16, skipping insertion in model container [2023-11-29 04:02:16,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:02:16" (3/3) ... [2023-11-29 04:02:16,249 INFO L112 eAbstractionObserver]: Analyzing ICFG Cairo_step2-2.c [2023-11-29 04:02:16,265 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:02:16,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:02:16,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:02:16,316 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@3c7f3de8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:02:16,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:02:16,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 8 states have internal predecessors, (11), 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) [2023-11-29 04:02:16,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 04:02:16,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:16,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 04:02:16,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:02:16,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:16,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1822505, now seen corresponding path program 1 times [2023-11-29 04:02:16,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:16,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263065034] [2023-11-29 04:02:16,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:16,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:16,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:16,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:16,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263065034] [2023-11-29 04:02:16,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263065034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:02:16,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:02:16,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:02:16,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193490480] [2023-11-29 04:02:16,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:02:16,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:02:16,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:16,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:02:16,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:02:16,509 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 8 states have internal predecessors, (11), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-29 04:02:16,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:16,549 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-29 04:02:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:02:16,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-29 04:02:16,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:16,562 INFO L225 Difference]: With dead ends: 15 [2023-11-29 04:02:16,562 INFO L226 Difference]: Without dead ends: 10 [2023-11-29 04:02:16,565 INFO L412 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 [2023-11-29 04:02:16,569 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:16,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:02:16,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-29 04:02:16,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-29 04:02:16,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2023-11-29 04:02:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-29 04:02:16,598 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2023-11-29 04:02:16,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:16,599 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-29 04:02:16,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-29 04:02:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-29 04:02:16,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 04:02:16,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:16,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 04:02:16,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:02:16,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:02:16,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:16,601 INFO L85 PathProgramCache]: Analyzing trace with hash 56497703, now seen corresponding path program 1 times [2023-11-29 04:02:16,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:16,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477391066] [2023-11-29 04:02:16,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:16,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:16,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:16,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477391066] [2023-11-29 04:02:16,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477391066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:02:16,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:02:16,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:02:16,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253593421] [2023-11-29 04:02:16,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:02:16,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:02:16,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:16,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:02:16,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:02:16,640 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 04:02:16,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:16,653 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2023-11-29 04:02:16,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:02:16,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-29 04:02:16,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:16,655 INFO L225 Difference]: With dead ends: 9 [2023-11-29 04:02:16,655 INFO L226 Difference]: Without dead ends: 8 [2023-11-29 04:02:16,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:02:16,657 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:16,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:02:16,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-29 04:02:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-29 04:02:16,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2023-11-29 04:02:16,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-29 04:02:16,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2023-11-29 04:02:16,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:16,662 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-29 04:02:16,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-29 04:02:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-29 04:02:16,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 04:02:16,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:16,663 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-29 04:02:16,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:02:16,664 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:02:16,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:16,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1540280855, now seen corresponding path program 1 times [2023-11-29 04:02:16,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:16,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309550225] [2023-11-29 04:02:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:16,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:16,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:16,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309550225] [2023-11-29 04:02:16,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309550225] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:02:16,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737806148] [2023-11-29 04:02:16,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:16,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:16,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:16,741 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:16,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:02:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:16,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:02:16,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:16,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:16,840 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:16,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737806148] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:02:16,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:02:16,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-29 04:02:16,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867602815] [2023-11-29 04:02:16,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:16,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:02:16,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:16,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:02:16,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:02:16,879 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2023-11-29 04:02:16,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:16,916 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2023-11-29 04:02:16,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:02:16,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 7 [2023-11-29 04:02:16,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:16,917 INFO L225 Difference]: With dead ends: 18 [2023-11-29 04:02:16,918 INFO L226 Difference]: Without dead ends: 17 [2023-11-29 04:02:16,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:02:16,920 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:16,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:02:16,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-29 04:02:16,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-29 04:02:16,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2023-11-29 04:02:16,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-29 04:02:16,926 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2023-11-29 04:02:16,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:16,927 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-11-29 04:02:16,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2023-11-29 04:02:16,927 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-29 04:02:16,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 04:02:16,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:16,928 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1] [2023-11-29 04:02:16,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:02:17,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:17,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:02:17,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:17,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1073405737, now seen corresponding path program 2 times [2023-11-29 04:02:17,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:17,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175588592] [2023-11-29 04:02:17,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:17,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:17,247 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:17,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:17,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175588592] [2023-11-29 04:02:17,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175588592] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:02:17,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709488601] [2023-11-29 04:02:17,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:02:17,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:17,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:17,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:17,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:02:17,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:02:17,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:02:17,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:02:17,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:17,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:17,417 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:17,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709488601] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:02:17,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:02:17,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-29 04:02:17,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612765516] [2023-11-29 04:02:17,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:17,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:02:17,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:17,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:02:17,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:02:17,421 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 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) [2023-11-29 04:02:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:17,480 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2023-11-29 04:02:17,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:02:17,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 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 16 [2023-11-29 04:02:17,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:17,482 INFO L225 Difference]: With dead ends: 36 [2023-11-29 04:02:17,482 INFO L226 Difference]: Without dead ends: 35 [2023-11-29 04:02:17,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:02:17,484 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:17,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:02:17,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-29 04:02:17,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-29 04:02:17,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 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) [2023-11-29 04:02:17,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2023-11-29 04:02:17,492 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 16 [2023-11-29 04:02:17,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:17,492 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2023-11-29 04:02:17,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 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) [2023-11-29 04:02:17,493 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2023-11-29 04:02:17,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 04:02:17,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:17,494 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1] [2023-11-29 04:02:17,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:02:17,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:17,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:02:17,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:17,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2086897879, now seen corresponding path program 3 times [2023-11-29 04:02:17,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:17,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022010381] [2023-11-29 04:02:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:17,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:17,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:17,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022010381] [2023-11-29 04:02:17,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022010381] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:02:17,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769262258] [2023-11-29 04:02:17,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:02:17,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:17,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:17,947 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:17,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:02:17,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 04:02:17,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:02:17,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:02:17,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:18,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:18,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769262258] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:02:18,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:02:18,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-11-29 04:02:18,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843571321] [2023-11-29 04:02:18,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:18,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 04:02:18,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:18,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 04:02:18,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:02:18,343 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 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) [2023-11-29 04:02:18,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:18,454 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2023-11-29 04:02:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 04:02:18,455 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 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 34 [2023-11-29 04:02:18,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:18,457 INFO L225 Difference]: With dead ends: 72 [2023-11-29 04:02:18,457 INFO L226 Difference]: Without dead ends: 71 [2023-11-29 04:02:18,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:02:18,459 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:18,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:02:18,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-29 04:02:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-29 04:02:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 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) [2023-11-29 04:02:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2023-11-29 04:02:18,472 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 34 [2023-11-29 04:02:18,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:18,473 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2023-11-29 04:02:18,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 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) [2023-11-29 04:02:18,473 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2023-11-29 04:02:18,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 04:02:18,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:18,476 INFO L195 NwaCegarLoop]: trace histogram [23, 22, 22, 1, 1, 1] [2023-11-29 04:02:18,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 04:02:18,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:18,677 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:02:18,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:18,677 INFO L85 PathProgramCache]: Analyzing trace with hash 398305065, now seen corresponding path program 4 times [2023-11-29 04:02:18,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:18,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678555786] [2023-11-29 04:02:18,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:18,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:19,308 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:19,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:19,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678555786] [2023-11-29 04:02:19,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678555786] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:02:19,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718177605] [2023-11-29 04:02:19,309 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:02:19,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:19,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:19,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:19,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:02:19,369 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:02:19,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:02:19,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 04:02:19,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:19,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:20,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718177605] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:02:20,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:02:20,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-11-29 04:02:20,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328807249] [2023-11-29 04:02:20,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:20,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-29 04:02:20,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:20,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-29 04:02:20,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 04:02:20,409 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 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) [2023-11-29 04:02:20,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:20,643 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2023-11-29 04:02:20,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 04:02:20,644 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 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 70 [2023-11-29 04:02:20,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:20,646 INFO L225 Difference]: With dead ends: 144 [2023-11-29 04:02:20,646 INFO L226 Difference]: Without dead ends: 143 [2023-11-29 04:02:20,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 115 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 04:02:20,648 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:20,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:02:20,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-29 04:02:20,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2023-11-29 04:02:20,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 142 states have internal predecessors, (143), 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) [2023-11-29 04:02:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2023-11-29 04:02:20,666 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 70 [2023-11-29 04:02:20,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:20,666 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2023-11-29 04:02:20,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 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) [2023-11-29 04:02:20,667 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2023-11-29 04:02:20,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:02:20,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:20,671 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 46, 1, 1, 1] [2023-11-29 04:02:20,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 04:02:20,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 04:02:20,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:02:20,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:20,877 INFO L85 PathProgramCache]: Analyzing trace with hash -42465495, now seen corresponding path program 5 times [2023-11-29 04:02:20,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:20,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863362559] [2023-11-29 04:02:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:20,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:22,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:22,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:22,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863362559] [2023-11-29 04:02:22,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863362559] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:02:22,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978587043] [2023-11-29 04:02:22,638 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:02:22,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:22,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:22,639 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:22,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:02:22,765 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-29 04:02:22,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:02:22,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 04:02:22,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:22,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:25,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:25,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978587043] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:02:25,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:02:25,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-11-29 04:02:25,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814952713] [2023-11-29 04:02:25,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:25,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-29 04:02:25,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:25,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-29 04:02:25,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 04:02:25,607 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 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) [2023-11-29 04:02:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:26,025 INFO L93 Difference]: Finished difference Result 288 states and 335 transitions. [2023-11-29 04:02:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-29 04:02:26,025 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 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 142 [2023-11-29 04:02:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:26,028 INFO L225 Difference]: With dead ends: 288 [2023-11-29 04:02:26,029 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 04:02:26,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 04:02:26,033 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:26,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:02:26,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 04:02:26,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2023-11-29 04:02:26,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.0034965034965035) internal successors, (287), 286 states have internal predecessors, (287), 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) [2023-11-29 04:02:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 287 transitions. [2023-11-29 04:02:26,060 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 287 transitions. Word has length 142 [2023-11-29 04:02:26,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:26,060 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 287 transitions. [2023-11-29 04:02:26,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 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) [2023-11-29 04:02:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 287 transitions. [2023-11-29 04:02:26,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-11-29 04:02:26,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:26,067 INFO L195 NwaCegarLoop]: trace histogram [95, 94, 94, 1, 1, 1] [2023-11-29 04:02:26,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 04:02:26,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 04:02:26,274 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:02:26,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:26,274 INFO L85 PathProgramCache]: Analyzing trace with hash 248301353, now seen corresponding path program 6 times [2023-11-29 04:02:26,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:26,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981696958] [2023-11-29 04:02:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:26,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:31,484 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:31,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:31,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981696958] [2023-11-29 04:02:31,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981696958] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:02:31,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050707296] [2023-11-29 04:02:31,484 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 04:02:31,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:02:31,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:02:31,485 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:02:31,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:02:31,694 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-11-29 04:02:31,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:02:31,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-29 04:02:31,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:02:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:32,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:02:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:02:41,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050707296] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:02:41,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:02:41,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-11-29 04:02:41,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358934558] [2023-11-29 04:02:41,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:02:41,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-11-29 04:02:41,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:41,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-11-29 04:02:41,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-29 04:02:41,251 INFO L87 Difference]: Start difference. First operand 287 states and 287 transitions. Second operand has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 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) [2023-11-29 04:02:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:02:42,613 INFO L93 Difference]: Finished difference Result 576 states and 671 transitions. [2023-11-29 04:02:42,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-11-29 04:02:42,614 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 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 286 [2023-11-29 04:02:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:02:42,617 INFO L225 Difference]: With dead ends: 576 [2023-11-29 04:02:42,617 INFO L226 Difference]: Without dead ends: 575 [2023-11-29 04:02:42,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 475 SyntacticMatches, 1 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-29 04:02:42,620 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:02:42,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:02:42,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-11-29 04:02:42,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2023-11-29 04:02:42,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 1.0017421602787457) internal successors, (575), 574 states have internal predecessors, (575), 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) [2023-11-29 04:02:42,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 575 transitions. [2023-11-29 04:02:42,642 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 575 transitions. Word has length 286 [2023-11-29 04:02:42,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:02:42,643 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 575 transitions. [2023-11-29 04:02:42,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 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) [2023-11-29 04:02:42,644 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 575 transitions. [2023-11-29 04:02:42,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2023-11-29 04:02:42,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:02:42,660 INFO L195 NwaCegarLoop]: trace histogram [191, 190, 190, 1, 1, 1] [2023-11-29 04:02:42,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:02:42,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 04:02:42,861 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:02:42,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:42,862 INFO L85 PathProgramCache]: Analyzing trace with hash -923384023, now seen corresponding path program 7 times [2023-11-29 04:02:42,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:42,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190060543] [2023-11-29 04:02:42,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:42,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:02,801 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:02,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:02,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190060543] [2023-11-29 04:03:02,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190060543] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:02,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674240543] [2023-11-29 04:03:02,802 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 04:03:02,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:02,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:02,803 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:02,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:03:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:02,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 192 conjunts are in the unsatisfiable core [2023-11-29 04:03:02,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:03,658 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:03,658 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:41,640 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:41,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674240543] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:03:41,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:03:41,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-11-29 04:03:41,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512782395] [2023-11-29 04:03:41,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:41,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-11-29 04:03:41,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:41,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-11-29 04:03:41,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-29 04:03:41,666 INFO L87 Difference]: Start difference. First operand 575 states and 575 transitions. Second operand has 384 states, 383 states have (on average 2.9947780678851177) internal successors, (1147), 384 states have internal predecessors, (1147), 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) [2023-11-29 04:03:49,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:49,203 INFO L93 Difference]: Finished difference Result 1152 states and 1343 transitions. [2023-11-29 04:03:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-11-29 04:03:49,205 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 2.9947780678851177) internal successors, (1147), 384 states have internal predecessors, (1147), 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 574 [2023-11-29 04:03:49,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:49,211 INFO L225 Difference]: With dead ends: 1152 [2023-11-29 04:03:49,211 INFO L226 Difference]: Without dead ends: 1151 [2023-11-29 04:03:49,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1338 GetRequests, 955 SyntacticMatches, 1 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 49.2s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-29 04:03:49,218 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:49,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:03:49,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2023-11-29 04:03:49,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2023-11-29 04:03:49,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 1150 states have (on average 1.0008695652173913) internal successors, (1151), 1150 states have internal predecessors, (1151), 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) [2023-11-29 04:03:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1151 transitions. [2023-11-29 04:03:49,263 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1151 transitions. Word has length 574 [2023-11-29 04:03:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:49,263 INFO L495 AbstractCegarLoop]: Abstraction has 1151 states and 1151 transitions. [2023-11-29 04:03:49,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 2.9947780678851177) internal successors, (1147), 384 states have internal predecessors, (1147), 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) [2023-11-29 04:03:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1151 transitions. [2023-11-29 04:03:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1151 [2023-11-29 04:03:49,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:49,302 INFO L195 NwaCegarLoop]: trace histogram [383, 382, 382, 1, 1, 1] [2023-11-29 04:03:49,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:03:49,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 04:03:49,503 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:03:49,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:49,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1689696471, now seen corresponding path program 8 times [2023-11-29 04:03:49,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:49,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019608447] [2023-11-29 04:03:49,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:49,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:05:39,504 INFO L134 CoverageAnalysis]: Checked inductivity of 219077 backedges. 0 proven. 219077 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:05:39,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:05:39,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019608447] [2023-11-29 04:05:39,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019608447] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:05:39,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964030144] [2023-11-29 04:05:39,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:05:39,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:05:39,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:05:39,506 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:05:39,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:05:39,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:05:39,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:05:39,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 384 conjunts are in the unsatisfiable core [2023-11-29 04:05:39,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:05:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 219077 backedges. 0 proven. 219077 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:05:41,184 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:08:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 219077 backedges. 0 proven. 219077 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:08:23,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964030144] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:08:23,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:08:23,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2023-11-29 04:08:23,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139041396] [2023-11-29 04:08:23,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:08:23,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2023-11-29 04:08:23,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:08:23,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2023-11-29 04:08:23,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2023-11-29 04:08:23,773 INFO L87 Difference]: Start difference. First operand 1151 states and 1151 transitions. Second operand has 768 states, 767 states have (on average 2.997392438070404) internal successors, (2299), 768 states have internal predecessors, (2299), 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) [2023-11-29 04:09:08,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:09:08,427 INFO L93 Difference]: Finished difference Result 2304 states and 2687 transitions. [2023-11-29 04:09:08,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2023-11-29 04:09:08,430 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 767 states have (on average 2.997392438070404) internal successors, (2299), 768 states have internal predecessors, (2299), 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 1150 [2023-11-29 04:09:08,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:09:08,441 INFO L225 Difference]: With dead ends: 2304 [2023-11-29 04:09:08,441 INFO L226 Difference]: Without dead ends: 2303 [2023-11-29 04:09:08,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2682 GetRequests, 1915 SyntacticMatches, 1 SemanticMatches, 766 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 217.6s TimeCoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2023-11-29 04:09:08,470 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2315 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 2317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:09:08,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 2317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2315 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:09:08,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2303 states. [2023-11-29 04:09:08,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2303 to 2303. [2023-11-29 04:09:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2303 states, 2302 states have (on average 1.0004344048653344) internal successors, (2303), 2302 states have internal predecessors, (2303), 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) [2023-11-29 04:09:08,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 2303 transitions. [2023-11-29 04:09:08,568 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 2303 transitions. Word has length 1150 [2023-11-29 04:09:08,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:09:08,570 INFO L495 AbstractCegarLoop]: Abstraction has 2303 states and 2303 transitions. [2023-11-29 04:09:08,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 767 states have (on average 2.997392438070404) internal successors, (2299), 768 states have internal predecessors, (2299), 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) [2023-11-29 04:09:08,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 2303 transitions. [2023-11-29 04:09:08,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2303 [2023-11-29 04:09:08,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:09:08,612 INFO L195 NwaCegarLoop]: trace histogram [767, 766, 766, 1, 1, 1] [2023-11-29 04:09:08,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:09:08,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a88304d0-ef60-40f8-8999-7597a9a3ca66/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:09:08,813 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:09:08,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:09:08,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1209055447, now seen corresponding path program 9 times [2023-11-29 04:09:08,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:09:08,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324128646] [2023-11-29 04:09:08,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:08,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:09:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat