./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 32bit --witnessprinter.graph.data.programhash f22afdea3888c472e42c0b4bee511704d4ceb9c1e2d9f4db0ce5ffbd6de758f0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:56:20,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:56:20,785 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 21:56:20,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:56:20,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:56:20,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:56:20,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:56:20,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:56:20,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:56:20,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:56:20,843 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:56:20,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:56:20,844 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:56:20,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:56:20,846 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:56:20,846 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:56:20,847 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:56:20,847 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:56:20,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:56:20,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:56:20,848 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:56:20,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:56:20,849 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:56:20,850 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:56:20,850 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:56:20,851 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:56:20,851 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:56:20,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:56:20,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:56:20,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:56:20,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:20,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:56:20,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:56:20,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:56:20,855 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:56:20,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:56:20,856 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:56:20,856 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:56:20,856 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:56:20,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:56:20,857 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:56:20,857 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_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f22afdea3888c472e42c0b4bee511704d4ceb9c1e2d9f4db0ce5ffbd6de758f0 [2023-11-06 21:56:21,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:56:21,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:56:21,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:56:21,182 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:56:21,182 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:56:21,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i [2023-11-06 21:56:24,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:56:24,724 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:56:24,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i [2023-11-06 21:56:24,754 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/data/6cb5082de/3948f0318d294596b9ec1e3f8baa3ea1/FLAGbffe457bb [2023-11-06 21:56:24,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/data/6cb5082de/3948f0318d294596b9ec1e3f8baa3ea1 [2023-11-06 21:56:24,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:56:24,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:56:24,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:24,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:56:24,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:56:24,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:24" (1/1) ... [2023-11-06 21:56:24,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e40600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:24, skipping insertion in model container [2023-11-06 21:56:24,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:24" (1/1) ... [2023-11-06 21:56:24,848 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:56:25,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:25,138 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:56:25,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:25,236 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:56:25,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25 WrapperNode [2023-11-06 21:56:25,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:25,238 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:25,238 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:56:25,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:56:25,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,280 INFO L138 Inliner]: procedures = 117, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2023-11-06 21:56:25,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:25,281 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:56:25,281 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:56:25,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:56:25,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:56:25,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:56:25,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:56:25,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:56:25,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (1/1) ... [2023-11-06 21:56:25,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:25,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:25,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:56:25,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:56:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:56:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:56:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:56:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:56:25,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:56:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:56:25,492 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:56:25,494 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:56:25,653 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:56:25,660 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:56:25,660 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 21:56:25,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:25 BoogieIcfgContainer [2023-11-06 21:56:25,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:56:25,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:56:25,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:56:25,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:56:25,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:56:24" (1/3) ... [2023-11-06 21:56:25,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8cb82d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:25, skipping insertion in model container [2023-11-06 21:56:25,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:25" (2/3) ... [2023-11-06 21:56:25,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8cb82d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:25, skipping insertion in model container [2023-11-06 21:56:25,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:25" (3/3) ... [2023-11-06 21:56:25,680 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstpcpy-alloca-1.i [2023-11-06 21:56:25,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:56:25,705 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 21:56:25,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:56:25,773 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=LoopsAndPotentialCycles, 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;@748987e9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:56:25,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-06 21:56:25,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 23 states have internal predecessors, (30), 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) [2023-11-06 21:56:25,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 21:56:25,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:25,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:25,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:56:25,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:25,792 INFO L85 PathProgramCache]: Analyzing trace with hash 121458234, now seen corresponding path program 1 times [2023-11-06 21:56:25,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:25,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475310109] [2023-11-06 21:56:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:25,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:26,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:26,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475310109] [2023-11-06 21:56:26,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475310109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:26,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:26,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602957334] [2023-11-06 21:56:26,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:26,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:56:26,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:26,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:56:26,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:56:26,180 INFO L87 Difference]: Start difference. First operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 23 states have internal predecessors, (30), 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, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-06 21:56:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:26,205 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2023-11-06 21:56:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:56:26,207 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Word has length 8 [2023-11-06 21:56:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:26,218 INFO L225 Difference]: With dead ends: 37 [2023-11-06 21:56:26,219 INFO L226 Difference]: Without dead ends: 16 [2023-11-06 21:56:26,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:56:26,230 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:26,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:56:26,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-06 21:56:26,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-06 21:56:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 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) [2023-11-06 21:56:26,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-11-06 21:56:26,277 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2023-11-06 21:56:26,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:26,278 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-11-06 21:56:26,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-06 21:56:26,278 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-06 21:56:26,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 21:56:26,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:26,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:26,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:56:26,282 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:56:26,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:26,283 INFO L85 PathProgramCache]: Analyzing trace with hash 121448624, now seen corresponding path program 1 times [2023-11-06 21:56:26,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:26,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100991495] [2023-11-06 21:56:26,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:26,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:26,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:26,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100991495] [2023-11-06 21:56:26,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100991495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:26,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:26,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:56:26,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009002747] [2023-11-06 21:56:26,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:26,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:56:26,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:26,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:56:26,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:56:26,518 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2023-11-06 21:56:26,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:26,625 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-11-06 21:56:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:56:26,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) Word has length 8 [2023-11-06 21:56:26,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:26,627 INFO L225 Difference]: With dead ends: 26 [2023-11-06 21:56:26,627 INFO L226 Difference]: Without dead ends: 21 [2023-11-06 21:56:26,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:56:26,630 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:26,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 20 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:56:26,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-06 21:56:26,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2023-11-06 21:56:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) [2023-11-06 21:56:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-11-06 21:56:26,644 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2023-11-06 21:56:26,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:26,645 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-11-06 21:56:26,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2023-11-06 21:56:26,646 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-06 21:56:26,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 21:56:26,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:26,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:26,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:56:26,669 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:56:26,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:26,670 INFO L85 PathProgramCache]: Analyzing trace with hash 121450290, now seen corresponding path program 1 times [2023-11-06 21:56:26,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:26,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714481796] [2023-11-06 21:56:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:26,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:26,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714481796] [2023-11-06 21:56:26,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714481796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:26,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:26,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:56:26,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945285265] [2023-11-06 21:56:26,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:26,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:56:26,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:26,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:56:26,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:56:26,887 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2023-11-06 21:56:26,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:26,941 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2023-11-06 21:56:26,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:56:26,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) Word has length 8 [2023-11-06 21:56:26,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:26,943 INFO L225 Difference]: With dead ends: 21 [2023-11-06 21:56:26,944 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 21:56:26,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:56:26,947 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:26,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:56:26,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 21:56:26,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-06 21:56:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 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) [2023-11-06 21:56:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-06 21:56:26,960 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2023-11-06 21:56:26,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:26,960 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-06 21:56:26,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2023-11-06 21:56:26,961 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-06 21:56:26,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 21:56:26,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:26,964 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:26,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:56:26,965 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:56:26,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:26,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1175730450, now seen corresponding path program 1 times [2023-11-06 21:56:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:26,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064314041] [2023-11-06 21:56:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:26,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:27,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:27,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:27,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064314041] [2023-11-06 21:56:27,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064314041] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:56:27,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874936823] [2023-11-06 21:56:27,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:27,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:27,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:27,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:56:27,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:56:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:27,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:56:27,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:27,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:27,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:27,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874936823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:27,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:56:27,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2023-11-06 21:56:27,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522791707] [2023-11-06 21:56:27,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:27,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:56:27,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:27,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:56:27,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:56:27,450 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-11-06 21:56:27,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:27,498 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2023-11-06 21:56:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:56:27,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 [2023-11-06 21:56:27,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:27,500 INFO L225 Difference]: With dead ends: 38 [2023-11-06 21:56:27,500 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 21:56:27,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:56:27,502 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:27,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:56:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 21:56:27,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-06 21:56:27,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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) [2023-11-06 21:56:27,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2023-11-06 21:56:27,508 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2023-11-06 21:56:27,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:27,508 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2023-11-06 21:56:27,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-11-06 21:56:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2023-11-06 21:56:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 21:56:27,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:27,510 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:27,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:56:27,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:27,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:56:27,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash -495672080, now seen corresponding path program 1 times [2023-11-06 21:56:27,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:27,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631705542] [2023-11-06 21:56:27,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:27,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:27,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:27,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631705542] [2023-11-06 21:56:27,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631705542] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:56:27,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407988979] [2023-11-06 21:56:27,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:27,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:27,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:27,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:56:27,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:56:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:27,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:56:27,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:28,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:28,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:28,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407988979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:28,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:56:28,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2023-11-06 21:56:28,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971196025] [2023-11-06 21:56:28,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:28,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:56:28,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:28,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:56:28,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:56:28,080 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-11-06 21:56:28,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:28,186 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2023-11-06 21:56:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:56:28,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 [2023-11-06 21:56:28,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:28,189 INFO L225 Difference]: With dead ends: 40 [2023-11-06 21:56:28,189 INFO L226 Difference]: Without dead ends: 30 [2023-11-06 21:56:28,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-06 21:56:28,193 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:28,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 37 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:56:28,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-06 21:56:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2023-11-06 21:56:28,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 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) [2023-11-06 21:56:28,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-11-06 21:56:28,212 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 12 [2023-11-06 21:56:28,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:28,212 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-11-06 21:56:28,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-11-06 21:56:28,213 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2023-11-06 21:56:28,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 21:56:28,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:28,213 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:28,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:56:28,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:28,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:56:28,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash -888699090, now seen corresponding path program 1 times [2023-11-06 21:56:28,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:28,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837526396] [2023-11-06 21:56:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:28,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:28,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:28,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:28,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837526396] [2023-11-06 21:56:28,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837526396] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:56:28,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185534100] [2023-11-06 21:56:28,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:28,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:28,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:28,587 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:56:28,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 21:56:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:28,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:56:28,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:28,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:28,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185534100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:28,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:56:28,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 21:56:28,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382186411] [2023-11-06 21:56:28,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:28,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:56:28,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:28,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:56:28,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:56:28,713 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-11-06 21:56:28,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:28,768 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2023-11-06 21:56:28,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:56:28,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 [2023-11-06 21:56:28,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:28,773 INFO L225 Difference]: With dead ends: 26 [2023-11-06 21:56:28,773 INFO L226 Difference]: Without dead ends: 25 [2023-11-06 21:56:28,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:56:28,778 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:28,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 29 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:56:28,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-06 21:56:28,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-06 21:56:28,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 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) [2023-11-06 21:56:28,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2023-11-06 21:56:28,793 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 12 [2023-11-06 21:56:28,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:28,794 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2023-11-06 21:56:28,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-11-06 21:56:28,794 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2023-11-06 21:56:28,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 21:56:28,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:28,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:28,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:56:29,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:29,001 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)] === [2023-11-06 21:56:29,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:29,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1813983129, now seen corresponding path program 1 times [2023-11-06 21:56:29,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:29,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316447677] [2023-11-06 21:56:29,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:29,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:56:29,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:29,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316447677] [2023-11-06 21:56:29,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316447677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:29,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:29,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:56:29,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157679788] [2023-11-06 21:56:29,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:29,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:56:29,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:29,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:56:29,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:29,049 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2023-11-06 21:56:29,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:29,062 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-11-06 21:56:29,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:56:29,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 21:56:29,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:29,064 INFO L225 Difference]: With dead ends: 25 [2023-11-06 21:56:29,064 INFO L226 Difference]: Without dead ends: 14 [2023-11-06 21:56:29,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:56:29,068 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:29,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:56:29,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-06 21:56:29,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-06 21:56:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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) [2023-11-06 21:56:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-06 21:56:29,074 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 13 [2023-11-06 21:56:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:29,075 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-06 21:56:29,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 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) [2023-11-06 21:56:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-06 21:56:29,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 21:56:29,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:29,077 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:29,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:56:29,078 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:56:29,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:29,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1779867951, now seen corresponding path program 1 times [2023-11-06 21:56:29,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:29,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443383509] [2023-11-06 21:56:29,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:29,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:29,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:29,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443383509] [2023-11-06 21:56:29,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443383509] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:56:29,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876500033] [2023-11-06 21:56:29,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:29,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:29,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:29,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:56:29,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 21:56:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:29,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:56:29,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:29,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:29,306 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:56:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:29,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876500033] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:56:29,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:56:29,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-06 21:56:29,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367828980] [2023-11-06 21:56:29,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:56:29,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 21:56:29,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:29,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 21:56:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:56:29,362 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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) [2023-11-06 21:56:29,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:29,476 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2023-11-06 21:56:29,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:56:29,479 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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 13 [2023-11-06 21:56:29,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:29,480 INFO L225 Difference]: With dead ends: 27 [2023-11-06 21:56:29,481 INFO L226 Difference]: Without dead ends: 26 [2023-11-06 21:56:29,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-11-06 21:56:29,483 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:29,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 23 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:56:29,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-06 21:56:29,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-06 21:56:29,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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) [2023-11-06 21:56:29,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2023-11-06 21:56:29,494 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 13 [2023-11-06 21:56:29,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:29,494 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2023-11-06 21:56:29,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 12 states have internal predecessors, (27), 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) [2023-11-06 21:56:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2023-11-06 21:56:29,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-06 21:56:29,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:29,496 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:29,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:56:29,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:29,709 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:56:29,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:29,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1295766045, now seen corresponding path program 2 times [2023-11-06 21:56:29,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:29,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359215296] [2023-11-06 21:56:29,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:29,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:29,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:29,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359215296] [2023-11-06 21:56:29,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359215296] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:56:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678346039] [2023-11-06 21:56:29,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:56:29,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:29,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:29,912 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:56:29,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 21:56:30,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:56:30,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:56:30,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:56:30,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:30,081 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 21:56:30,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:56:30,150 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-06 21:56:30,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678346039] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:56:30,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:56:30,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2023-11-06 21:56:30,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195214280] [2023-11-06 21:56:30,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:56:30,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 21:56:30,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:30,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 21:56:30,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-06 21:56:30,157 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 15 states have internal predecessors, (37), 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) [2023-11-06 21:56:30,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:30,344 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2023-11-06 21:56:30,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 21:56:30,345 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 15 states have internal predecessors, (37), 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 25 [2023-11-06 21:56:30,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:30,347 INFO L225 Difference]: With dead ends: 31 [2023-11-06 21:56:30,347 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 21:56:30,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2023-11-06 21:56:30,351 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:30,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 16 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:56:30,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 21:56:30,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 21:56:30,353 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) [2023-11-06 21:56:30,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 21:56:30,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2023-11-06 21:56:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:30,353 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 21:56:30,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 15 states have internal predecessors, (37), 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) [2023-11-06 21:56:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 21:56:30,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 21:56:30,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-06 21:56:30,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-06 21:56:30,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-06 21:56:30,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-06 21:56:30,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 21:56:30,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:56:30,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 21:56:30,653 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 535) no Hoare annotation was computed. [2023-11-06 21:56:30,653 INFO L899 garLoopResultBuilder]: For program point L535(line 535) no Hoare annotation was computed. [2023-11-06 21:56:30,653 INFO L899 garLoopResultBuilder]: For program point L535-1(line 535) no Hoare annotation was computed. [2023-11-06 21:56:30,653 INFO L899 garLoopResultBuilder]: For program point L531-2(lines 531 534) no Hoare annotation was computed. [2023-11-06 21:56:30,653 INFO L899 garLoopResultBuilder]: For program point L531-3(line 531) no Hoare annotation was computed. [2023-11-06 21:56:30,654 INFO L899 garLoopResultBuilder]: For program point L531-4(line 531) no Hoare annotation was computed. [2023-11-06 21:56:30,654 INFO L895 garLoopResultBuilder]: At program point L531-5(lines 531 534) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0 .cse1) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1))) [2023-11-06 21:56:30,654 INFO L899 garLoopResultBuilder]: For program point L531-6(lines 531 534) no Hoare annotation was computed. [2023-11-06 21:56:30,655 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 518 538) the Hoare annotation is: true [2023-11-06 21:56:30,655 INFO L899 garLoopResultBuilder]: For program point L515-1(line 515) no Hoare annotation was computed. [2023-11-06 21:56:30,655 INFO L899 garLoopResultBuilder]: For program point L515-3(line 515) no Hoare annotation was computed. [2023-11-06 21:56:30,655 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 21:56:30,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 531) no Hoare annotation was computed. [2023-11-06 21:56:30,655 INFO L902 garLoopResultBuilder]: At program point L515-4(line 515) the Hoare annotation is: true [2023-11-06 21:56:30,656 INFO L899 garLoopResultBuilder]: For program point L515-5(line 515) no Hoare annotation was computed. [2023-11-06 21:56:30,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 21:56:30,656 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 518 538) no Hoare annotation was computed. [2023-11-06 21:56:30,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 531) no Hoare annotation was computed. [2023-11-06 21:56:30,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 21:56:30,656 INFO L902 garLoopResultBuilder]: At program point cstpcpy_returnLabel#1(lines 513 517) the Hoare annotation is: true [2023-11-06 21:56:30,656 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 21:56:30,657 INFO L899 garLoopResultBuilder]: For program point L521(lines 521 523) no Hoare annotation was computed. [2023-11-06 21:56:30,657 INFO L899 garLoopResultBuilder]: For program point L521-2(lines 518 538) no Hoare annotation was computed. [2023-11-06 21:56:30,657 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 535) no Hoare annotation was computed. [2023-11-06 21:56:30,660 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:30,662 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:56:30,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:56:30 BoogieIcfgContainer [2023-11-06 21:56:30,674 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:56:30,674 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:56:30,674 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:56:30,675 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:56:30,675 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:25" (3/4) ... [2023-11-06 21:56:30,677 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:56:30,686 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-06 21:56:30,686 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:56:30,687 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-06 21:56:30,687 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:56:30,743 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:56:30,743 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:56:30,743 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:56:30,744 INFO L158 Benchmark]: Toolchain (without parser) took 5968.70ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 106.3MB in the beginning and 110.9MB in the end (delta: -4.6MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-11-06 21:56:30,745 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:56:30,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.74ms. Allocated memory is still 138.4MB. Free memory was 105.7MB in the beginning and 89.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 21:56:30,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.92ms. Allocated memory is still 138.4MB. Free memory was 89.7MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:56:30,746 INFO L158 Benchmark]: Boogie Preprocessor took 27.71ms. Allocated memory is still 138.4MB. Free memory was 87.7MB in the beginning and 86.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:56:30,746 INFO L158 Benchmark]: RCFGBuilder took 353.08ms. Allocated memory is still 138.4MB. Free memory was 86.2MB in the beginning and 75.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:56:30,747 INFO L158 Benchmark]: TraceAbstraction took 5006.71ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 74.2MB in the beginning and 114.0MB in the end (delta: -39.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:56:30,747 INFO L158 Benchmark]: Witness Printer took 69.25ms. Allocated memory is still 167.8MB. Free memory was 114.0MB in the beginning and 110.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:56:30,749 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 96.5MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.74ms. Allocated memory is still 138.4MB. Free memory was 105.7MB in the beginning and 89.7MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.92ms. Allocated memory is still 138.4MB. Free memory was 89.7MB in the beginning and 87.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.71ms. Allocated memory is still 138.4MB. Free memory was 87.7MB in the beginning and 86.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 353.08ms. Allocated memory is still 138.4MB. Free memory was 86.2MB in the beginning and 75.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5006.71ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 74.2MB in the beginning and 114.0MB in the end (delta: -39.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.25ms. Allocated memory is still 167.8MB. Free memory was 114.0MB in the beginning and 110.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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: 531]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 531]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 535]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 535]: 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, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 80 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 216 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 117 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 99 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=5, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 18 NumberOfFragments, 24 HoareAnnotationTreeSize, 4 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 185 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 545 SizeOfPredicates, 14 NumberOfNonLiveVariables, 330 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 66/151 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: 518]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: ((((1 <= i) && (1 <= length2)) && (length2 <= 2147483647)) || (((i == 0) && (1 <= length2)) && (length2 <= 2147483647))) - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-06 21:56:30,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbaa21d-ac8c-4a49-a250-372053421e0e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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