./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/ex3b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/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_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/ex3b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/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_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/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 d412468cd64aacfdcefc246e93a3ecceac718c99c9cbd69d8c14d9acc4927672 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:39:17,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:39:17,447 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 02:39:17,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:39:17,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:39:17,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:39:17,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:39:17,483 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:39:17,483 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:39:17,484 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:39:17,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:39:17,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:39:17,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:39:17,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:39:17,487 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:39:17,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:39:17,488 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:39:17,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:39:17,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:39:17,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:39:17,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:39:17,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:39:17,491 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:39:17,491 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:39:17,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:39:17,492 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:39:17,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:39:17,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:39:17,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:39:17,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:39:17,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:39:17,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:39:17,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:39:17,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:39:17,495 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:39:17,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:39:17,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:39:17,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:39:17,497 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:39:17,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:39:17,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:39:17,497 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_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d412468cd64aacfdcefc246e93a3ecceac718c99c9cbd69d8c14d9acc4927672 [2023-11-29 02:39:17,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:39:17,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:39:17,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:39:17,777 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:39:17,778 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:39:17,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-restricted-15/ex3b.c [2023-11-29 02:39:20,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:39:20,683 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:39:20,684 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/sv-benchmarks/c/termination-restricted-15/ex3b.c [2023-11-29 02:39:20,689 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/data/6b2efa31c/379f00ebe966494fb71716d32b6a1c91/FLAG9491fd349 [2023-11-29 02:39:20,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/data/6b2efa31c/379f00ebe966494fb71716d32b6a1c91 [2023-11-29 02:39:20,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:39:20,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:39:20,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:39:20,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:39:20,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:39:20,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c1bd63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20, skipping insertion in model container [2023-11-29 02:39:20,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,728 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:39:20,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:39:20,877 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:39:20,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:39:20,906 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:39:20,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20 WrapperNode [2023-11-29 02:39:20,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:39:20,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:39:20,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:39:20,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:39:20,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,938 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-29 02:39:20,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:39:20,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:39:20,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:39:20,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:39:20,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,958 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 02:39:20,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:39:20,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:39:20,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:39:20,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:39:20,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (1/1) ... [2023-11-29 02:39:20,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:39:20,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:39:21,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:39:21,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:39:21,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:39:21,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:39:21,127 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:39:21,129 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:39:21,214 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:39:21,232 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:39:21,233 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:39:21,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:39:21 BoogieIcfgContainer [2023-11-29 02:39:21,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:39:21,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:39:21,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:39:21,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:39:21,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:39:20" (1/3) ... [2023-11-29 02:39:21,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e4db79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:39:21, skipping insertion in model container [2023-11-29 02:39:21,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:20" (2/3) ... [2023-11-29 02:39:21,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e4db79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:39:21, skipping insertion in model container [2023-11-29 02:39:21,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:39:21" (3/3) ... [2023-11-29 02:39:21,244 INFO L112 eAbstractionObserver]: Analyzing ICFG ex3b.c [2023-11-29 02:39:21,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:39:21,264 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 02:39:21,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:39:21,357 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;@2c5c4eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:39:21,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 02:39:21,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 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 02:39:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 02:39:21,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:39:21,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 02:39:21,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 02:39:21,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:39:21,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1884073, now seen corresponding path program 1 times [2023-11-29 02:39:21,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:39:21,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434246435] [2023-11-29 02:39:21,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:21,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:39:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:39:21,499 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 02:39:21,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:39:21,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434246435] [2023-11-29 02:39:21,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434246435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:39:21,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:39:21,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:39:21,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915731786] [2023-11-29 02:39:21,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:39:21,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:39:21,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:39:21,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:39:21,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:39:21,535 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 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 2 states, 1 states have (on average 4.0) internal successors, (4), 2 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 02:39:21,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:39:21,551 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-11-29 02:39:21,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:39:21,554 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 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 02:39:21,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:39:21,562 INFO L225 Difference]: With dead ends: 17 [2023-11-29 02:39:21,562 INFO L226 Difference]: Without dead ends: 10 [2023-11-29 02:39:21,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:39:21,569 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:39:21,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:39:21,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-29 02:39:21,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-29 02:39:21,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 states have internal predecessors, (10), 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 02:39:21,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-11-29 02:39:21,598 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2023-11-29 02:39:21,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:39:21,598 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-11-29 02:39:21,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 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 02:39:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-11-29 02:39:21,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 02:39:21,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:39:21,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 02:39:21,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:39:21,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 02:39:21,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:39:21,601 INFO L85 PathProgramCache]: Analyzing trace with hash 58406313, now seen corresponding path program 1 times [2023-11-29 02:39:21,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:39:21,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076658644] [2023-11-29 02:39:21,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:21,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:39:21,612 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:39:21,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [896777938] [2023-11-29 02:39:21,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:21,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:21,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:39:21,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:39:21,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:39:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:39:21,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:39:21,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:21,735 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 02:39:21,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:39:21,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:39:21,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076658644] [2023-11-29 02:39:21,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:39:21,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896777938] [2023-11-29 02:39:21,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896777938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:39:21,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:39:21,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:39:21,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507774630] [2023-11-29 02:39:21,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:39:21,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:39:21,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:39:21,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:39:21,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:39:21,740 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 02:39:21,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:39:21,775 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2023-11-29 02:39:21,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:39:21,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 02:39:21,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:39:21,776 INFO L225 Difference]: With dead ends: 10 [2023-11-29 02:39:21,776 INFO L226 Difference]: Without dead ends: 9 [2023-11-29 02:39:21,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:39:21,783 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:39:21,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:39:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-29 02:39:21,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-29 02:39:21,786 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 02:39:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-29 02:39:21,787 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-29 02:39:21,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:39:21,787 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-29 02:39:21,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 02:39:21,788 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-29 02:39:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 02:39:21,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:39:21,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 02:39:21,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:39:21,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:21,992 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 02:39:21,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:39:21,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1810595755, now seen corresponding path program 1 times [2023-11-29 02:39:21,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:39:21,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940509178] [2023-11-29 02:39:21,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:21,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:39:22,001 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:39:22,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [134199358] [2023-11-29 02:39:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:22,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:22,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:39:22,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:39:22,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:39:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:39:22,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:39:22,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:22,054 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 02:39:22,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:39:22,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:39:22,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940509178] [2023-11-29 02:39:22,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:39:22,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134199358] [2023-11-29 02:39:22,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134199358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:39:22,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:39:22,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:39:22,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262714396] [2023-11-29 02:39:22,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:39:22,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:39:22,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:39:22,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:39:22,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:39:22,057 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:39:22,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:39:22,064 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2023-11-29 02:39:22,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:39:22,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 02:39:22,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:39:22,065 INFO L225 Difference]: With dead ends: 9 [2023-11-29 02:39:22,065 INFO L226 Difference]: Without dead ends: 8 [2023-11-29 02:39:22,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:39:22,067 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:39:22,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:39:22,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-29 02:39:22,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-29 02:39:22,070 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 02:39:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-29 02:39:22,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2023-11-29 02:39:22,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:39:22,071 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-29 02:39:22,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:39:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-29 02:39:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 02:39:22,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:39:22,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:39:22,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:39:22,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:22,273 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 02:39:22,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:39:22,273 INFO L85 PathProgramCache]: Analyzing trace with hash 293893611, now seen corresponding path program 1 times [2023-11-29 02:39:22,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:39:22,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389327703] [2023-11-29 02:39:22,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:22,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:39:22,279 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:39:22,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055710890] [2023-11-29 02:39:22,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:22,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:22,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:39:22,280 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:39:22,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:39:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:39:22,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:39:22,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:22,323 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 02:39:22,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:39:22,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:39:22,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389327703] [2023-11-29 02:39:22,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:39:22,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055710890] [2023-11-29 02:39:22,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055710890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:39:22,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:39:22,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 02:39:22,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302496656] [2023-11-29 02:39:22,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:39:22,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:39:22,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:39:22,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:39:22,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:39:22,326 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:39:22,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:39:22,335 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-29 02:39:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:39:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:39:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:39:22,336 INFO L225 Difference]: With dead ends: 14 [2023-11-29 02:39:22,336 INFO L226 Difference]: Without dead ends: 13 [2023-11-29 02:39:22,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 02:39:22,337 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:39:22,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:39:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-29 02:39:22,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-29 02:39:22,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 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 02:39:22,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-29 02:39:22,341 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-11-29 02:39:22,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:39:22,342 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-29 02:39:22,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 02:39:22,342 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-29 02:39:22,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 02:39:22,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:39:22,343 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 02:39:22,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:39:22,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:22,543 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 02:39:22,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:39:22,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2073973287, now seen corresponding path program 1 times [2023-11-29 02:39:22,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:39:22,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537418660] [2023-11-29 02:39:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:22,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:39:22,552 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:39:22,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639911385] [2023-11-29 02:39:22,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:22,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:22,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:39:22,553 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:39:22,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:39:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:39:22,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:39:22,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:22,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:39:22,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:39:22,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:39:22,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:39:22,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537418660] [2023-11-29 02:39:22,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:39:22,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639911385] [2023-11-29 02:39:22,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639911385] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:39:22,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:39:22,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2023-11-29 02:39:22,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572127205] [2023-11-29 02:39:22,653 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:39:22,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:39:22,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:39:22,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:39:22,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:39:22,655 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 02:39:22,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:39:22,678 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2023-11-29 02:39:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:39:22,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 12 [2023-11-29 02:39:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:39:22,680 INFO L225 Difference]: With dead ends: 29 [2023-11-29 02:39:22,680 INFO L226 Difference]: Without dead ends: 28 [2023-11-29 02:39:22,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:39:22,681 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:39:22,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:39:22,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-29 02:39:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-29 02:39:22,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 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 02:39:22,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2023-11-29 02:39:22,688 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 12 [2023-11-29 02:39:22,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:39:22,689 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2023-11-29 02:39:22,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 02:39:22,689 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2023-11-29 02:39:22,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 02:39:22,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:39:22,690 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1] [2023-11-29 02:39:22,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:39:22,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:22,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 02:39:22,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:39:22,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1365516523, now seen corresponding path program 2 times [2023-11-29 02:39:22,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:39:22,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479028548] [2023-11-29 02:39:22,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:22,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:39:22,902 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:39:22,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655096005] [2023-11-29 02:39:22,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:39:22,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:22,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:39:22,903 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:39:22,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:39:22,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:39:22,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:39:22,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:39:22,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:39:23,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:39:23,134 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:39:23,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:39:23,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479028548] [2023-11-29 02:39:23,135 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:39:23,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655096005] [2023-11-29 02:39:23,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655096005] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:39:23,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:39:23,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2023-11-29 02:39:23,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844610614] [2023-11-29 02:39:23,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:39:23,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:39:23,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:39:23,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:39:23,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:39:23,137 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 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 02:39:23,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:39:23,178 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2023-11-29 02:39:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:39:23,179 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 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 27 [2023-11-29 02:39:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:39:23,180 INFO L225 Difference]: With dead ends: 59 [2023-11-29 02:39:23,180 INFO L226 Difference]: Without dead ends: 58 [2023-11-29 02:39:23,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:39:23,181 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:39:23,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:39:23,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-29 02:39:23,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-29 02:39:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 57 states have internal predecessors, (58), 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 02:39:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2023-11-29 02:39:23,192 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 27 [2023-11-29 02:39:23,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:39:23,192 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2023-11-29 02:39:23,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 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 02:39:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2023-11-29 02:39:23,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 02:39:23,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:39:23,194 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1] [2023-11-29 02:39:23,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:39:23,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:23,395 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-29 02:39:23,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:39:23,395 INFO L85 PathProgramCache]: Analyzing trace with hash 798560619, now seen corresponding path program 3 times [2023-11-29 02:39:23,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:39:23,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674756212] [2023-11-29 02:39:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:39:23,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:39:23,410 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:39:23,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91442887] [2023-11-29 02:39:23,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:39:23,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:23,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:39:23,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:39:23,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:39:23,461 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 02:39:23,461 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:39:23,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:39:23,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:39:25,168 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 02:39:25,169 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:39:25,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:39:25,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674756212] [2023-11-29 02:39:25,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:39:25,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91442887] [2023-11-29 02:39:25,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91442887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:39:25,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:39:25,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:39:25,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756027191] [2023-11-29 02:39:25,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:39:25,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:39:25,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:39:25,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:39:25,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:39:25,172 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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 02:39:25,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:39:25,399 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2023-11-29 02:39:25,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:39:25,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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 57 [2023-11-29 02:39:25,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:39:25,401 INFO L225 Difference]: With dead ends: 58 [2023-11-29 02:39:25,401 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:39:25,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:39:25,402 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:39:25,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:39:25,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:39:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:39:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 02:39:25,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:39:25,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 57 [2023-11-29 02:39:25,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:39:25,406 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:39:25,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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 02:39:25,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:39:25,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:39:25,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-29 02:39:25,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-29 02:39:25,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-29 02:39:25,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-29 02:39:25,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:39:25,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:39:25,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:39:25,824 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-11-29 02:39:25,825 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 02:39:25,825 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-29 02:39:25,825 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-29 02:39:25,825 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-11-29 02:39:25,825 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 02:39:25,825 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 5 16) no Hoare annotation was computed. [2023-11-29 02:39:25,826 INFO L895 garLoopResultBuilder]: At program point L11-2(lines 11 14) the Hoare annotation is: (let ((.cse1 (<= 0 |ULTIMATE.start_main_~c~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~y~0#1| 46340))) (or (and (<= |ULTIMATE.start_main_~c~0#1| 4) .cse0 .cse1 (exists ((|v_ULTIMATE.start_main_~x~0#1_26| Int) (|v_ULTIMATE.start_main_~x~0#1_23| Int) (|v_ULTIMATE.start_main_~x~0#1_24| Int) (|v_ULTIMATE.start_main_~x~0#1_25| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_26| |v_ULTIMATE.start_main_~x~0#1_26|) |ULTIMATE.start_main_~x~0#1|) (<= (* |v_ULTIMATE.start_main_~x~0#1_25| |v_ULTIMATE.start_main_~x~0#1_25|) |v_ULTIMATE.start_main_~x~0#1_26|) (<= (* |v_ULTIMATE.start_main_~x~0#1_24| |v_ULTIMATE.start_main_~x~0#1_24|) |v_ULTIMATE.start_main_~x~0#1_25|) (<= (* |v_ULTIMATE.start_main_~x~0#1_23| |v_ULTIMATE.start_main_~x~0#1_23|) |v_ULTIMATE.start_main_~x~0#1_24|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_23|)))) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 2) (exists ((|v_ULTIMATE.start_main_~x~0#1_23| Int) (|v_ULTIMATE.start_main_~x~0#1_24| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_23| |v_ULTIMATE.start_main_~x~0#1_23|) |v_ULTIMATE.start_main_~x~0#1_24|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_23|) (<= (* |v_ULTIMATE.start_main_~x~0#1_24| |v_ULTIMATE.start_main_~x~0#1_24|) |ULTIMATE.start_main_~x~0#1|)))) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_23| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_23| |v_ULTIMATE.start_main_~x~0#1_23|) |ULTIMATE.start_main_~x~0#1|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_23|))) (<= |ULTIMATE.start_main_~c~0#1| 1) .cse0 .cse1) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~c~0#1| 3) (exists ((|v_ULTIMATE.start_main_~x~0#1_23| Int) (|v_ULTIMATE.start_main_~x~0#1_24| Int) (|v_ULTIMATE.start_main_~x~0#1_25| Int)) (and (<= (* |v_ULTIMATE.start_main_~x~0#1_24| |v_ULTIMATE.start_main_~x~0#1_24|) |v_ULTIMATE.start_main_~x~0#1_25|) (<= (* |v_ULTIMATE.start_main_~x~0#1_23| |v_ULTIMATE.start_main_~x~0#1_23|) |v_ULTIMATE.start_main_~x~0#1_24|) (<= 2 |v_ULTIMATE.start_main_~x~0#1_23|) (<= (* |v_ULTIMATE.start_main_~x~0#1_25| |v_ULTIMATE.start_main_~x~0#1_25|) |ULTIMATE.start_main_~x~0#1|)))) (and (= |ULTIMATE.start_main_~c~0#1| 0) .cse0))) [2023-11-29 02:39:25,826 INFO L899 garLoopResultBuilder]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2023-11-29 02:39:25,826 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-11-29 02:39:25,826 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2023-11-29 02:39:25,826 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-29 02:39:25,826 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2023-11-29 02:39:25,827 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2023-11-29 02:39:25,830 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-11-29 02:39:25,832 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:39:25,844 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_26 : int, v_ULTIMATE.start_main_~x~0#1_23 : int, v_ULTIMATE.start_main_~x~0#1_24 : int, v_ULTIMATE.start_main_~x~0#1_25 : int :: (((v_ULTIMATE.start_main_~x~0#1_26 * v_ULTIMATE.start_main_~x~0#1_26 <= ~x~0 && v_ULTIMATE.start_main_~x~0#1_25 * v_ULTIMATE.start_main_~x~0#1_25 <= v_ULTIMATE.start_main_~x~0#1_26) && v_ULTIMATE.start_main_~x~0#1_24 * v_ULTIMATE.start_main_~x~0#1_24 <= v_ULTIMATE.start_main_~x~0#1_25) && v_ULTIMATE.start_main_~x~0#1_23 * v_ULTIMATE.start_main_~x~0#1_23 <= v_ULTIMATE.start_main_~x~0#1_24) && 2 <= v_ULTIMATE.start_main_~x~0#1_23) could not be translated [2023-11-29 02:39:25,845 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_23 : int, v_ULTIMATE.start_main_~x~0#1_24 : int :: (v_ULTIMATE.start_main_~x~0#1_23 * v_ULTIMATE.start_main_~x~0#1_23 <= v_ULTIMATE.start_main_~x~0#1_24 && 2 <= v_ULTIMATE.start_main_~x~0#1_23) && v_ULTIMATE.start_main_~x~0#1_24 * v_ULTIMATE.start_main_~x~0#1_24 <= ~x~0) could not be translated [2023-11-29 02:39:25,845 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_23 : int :: v_ULTIMATE.start_main_~x~0#1_23 * v_ULTIMATE.start_main_~x~0#1_23 <= ~x~0 && 2 <= v_ULTIMATE.start_main_~x~0#1_23) could not be translated [2023-11-29 02:39:25,845 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_23 : int, v_ULTIMATE.start_main_~x~0#1_24 : int, v_ULTIMATE.start_main_~x~0#1_25 : int :: ((v_ULTIMATE.start_main_~x~0#1_24 * v_ULTIMATE.start_main_~x~0#1_24 <= v_ULTIMATE.start_main_~x~0#1_25 && v_ULTIMATE.start_main_~x~0#1_23 * v_ULTIMATE.start_main_~x~0#1_23 <= v_ULTIMATE.start_main_~x~0#1_24) && 2 <= v_ULTIMATE.start_main_~x~0#1_23) && v_ULTIMATE.start_main_~x~0#1_25 * v_ULTIMATE.start_main_~x~0#1_25 <= ~x~0) could not be translated [2023-11-29 02:39:25,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:39:25 BoogieIcfgContainer [2023-11-29 02:39:25,846 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:39:25,847 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:39:25,847 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:39:25,847 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:39:25,847 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:39:21" (3/4) ... [2023-11-29 02:39:25,849 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:39:25,856 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 02:39:25,856 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 02:39:25,856 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 02:39:25,940 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:39:25,940 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:39:25,940 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:39:25,941 INFO L158 Benchmark]: Toolchain (without parser) took 5236.28ms. Allocated memory is still 146.8MB. Free memory was 115.4MB in the beginning and 104.4MB in the end (delta: 11.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2023-11-29 02:39:25,941 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 88.3MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:39:25,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.14ms. Allocated memory is still 146.8MB. Free memory was 115.4MB in the beginning and 105.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:39:25,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.32ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:39:25,942 INFO L158 Benchmark]: Boogie Preprocessor took 27.98ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 102.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:39:25,942 INFO L158 Benchmark]: RCFGBuilder took 265.48ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 93.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:39:25,943 INFO L158 Benchmark]: TraceAbstraction took 4609.86ms. Allocated memory is still 146.8MB. Free memory was 93.1MB in the beginning and 108.6MB in the end (delta: -15.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:39:25,943 INFO L158 Benchmark]: Witness Printer took 93.60ms. Allocated memory is still 146.8MB. Free memory was 108.6MB in the beginning and 104.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:39:25,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 88.3MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.14ms. Allocated memory is still 146.8MB. Free memory was 115.4MB in the beginning and 105.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.32ms. Allocated memory is still 146.8MB. Free memory was 105.6MB in the beginning and 104.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.98ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 102.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 265.48ms. Allocated memory is still 146.8MB. Free memory was 102.9MB in the beginning and 93.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4609.86ms. Allocated memory is still 146.8MB. Free memory was 93.1MB in the beginning and 108.6MB in the end (delta: -15.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 93.60ms. Allocated memory is still 146.8MB. Free memory was 108.6MB in the beginning and 104.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_26 : int, v_ULTIMATE.start_main_~x~0#1_23 : int, v_ULTIMATE.start_main_~x~0#1_24 : int, v_ULTIMATE.start_main_~x~0#1_25 : int :: (((v_ULTIMATE.start_main_~x~0#1_26 * v_ULTIMATE.start_main_~x~0#1_26 <= ~x~0 && v_ULTIMATE.start_main_~x~0#1_25 * v_ULTIMATE.start_main_~x~0#1_25 <= v_ULTIMATE.start_main_~x~0#1_26) && v_ULTIMATE.start_main_~x~0#1_24 * v_ULTIMATE.start_main_~x~0#1_24 <= v_ULTIMATE.start_main_~x~0#1_25) && v_ULTIMATE.start_main_~x~0#1_23 * v_ULTIMATE.start_main_~x~0#1_23 <= v_ULTIMATE.start_main_~x~0#1_24) && 2 <= v_ULTIMATE.start_main_~x~0#1_23) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_23 : int, v_ULTIMATE.start_main_~x~0#1_24 : int :: (v_ULTIMATE.start_main_~x~0#1_23 * v_ULTIMATE.start_main_~x~0#1_23 <= v_ULTIMATE.start_main_~x~0#1_24 && 2 <= v_ULTIMATE.start_main_~x~0#1_23) && v_ULTIMATE.start_main_~x~0#1_24 * v_ULTIMATE.start_main_~x~0#1_24 <= ~x~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_23 : int :: v_ULTIMATE.start_main_~x~0#1_23 * v_ULTIMATE.start_main_~x~0#1_23 <= ~x~0 && 2 <= v_ULTIMATE.start_main_~x~0#1_23) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~x~0#1_23 : int, v_ULTIMATE.start_main_~x~0#1_24 : int, v_ULTIMATE.start_main_~x~0#1_25 : int :: ((v_ULTIMATE.start_main_~x~0#1_24 * v_ULTIMATE.start_main_~x~0#1_24 <= v_ULTIMATE.start_main_~x~0#1_25 && v_ULTIMATE.start_main_~x~0#1_23 * v_ULTIMATE.start_main_~x~0#1_23 <= v_ULTIMATE.start_main_~x~0#1_24) && 2 <= v_ULTIMATE.start_main_~x~0#1_23) && v_ULTIMATE.start_main_~x~0#1_25 * v_ULTIMATE.start_main_~x~0#1_25 <= ~x~0) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 45 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=6, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 6 NumberOfFragments, 118 HoareAnnotationTreeSize, 1 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 118 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 148 ConstructedInterpolants, 18 QuantifiedInterpolants, 760 SizeOfPredicates, 3 NumberOfNonLiveVariables, 197 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 275/385 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((((c <= 4) && (y <= 46340)) && (0 <= c)) || (((y <= 46340) && (0 <= c)) && (c <= 2))) || (((c <= 1) && (y <= 46340)) && (0 <= c))) || (((y <= 46340) && (0 <= c)) && (c <= 3))) || ((c == 0) && (y <= 46340))) RESULT: Ultimate proved your program to be correct! [2023-11-29 02:39:25,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c42d2e-ce82-4b9b-ad13-ca93442728cb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE