./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e0029e4ef6d93314dd28a1b067e9a0f7a5ca34b8281e95ccf7b3ad64c7537db6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:03:50,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:03:50,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 04:03:50,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:03:50,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:03:50,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:03:50,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:03:50,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:03:50,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:03:50,836 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:03:50,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:03:50,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:03:50,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:03:50,839 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:03:50,839 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:03:50,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:03:50,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:03:50,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:03:50,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:03:50,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:03:50,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:03:50,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:03:50,844 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:03:50,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:03:50,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:03:50,845 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:03:50,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:03:50,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:03:50,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:03:50,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:03:50,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:03:50,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:03:50,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:03:50,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:03:50,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:03:50,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:03:50,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:03:50,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:03:50,859 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:03:50,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:03:50,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:03:50,860 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_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0029e4ef6d93314dd28a1b067e9a0f7a5ca34b8281e95ccf7b3ad64c7537db6 [2023-11-29 04:03:51,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:03:51,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:03:51,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:03:51,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:03:51,086 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:03:51,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-restricted-15/b.14.c [2023-11-29 04:03:53,802 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:03:53,948 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:03:53,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/sv-benchmarks/c/termination-restricted-15/b.14.c [2023-11-29 04:03:53,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/data/be4267f9a/739f3d1f1d9043f0b32f9993798a605b/FLAGc04ae4cf8 [2023-11-29 04:03:53,964 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/data/be4267f9a/739f3d1f1d9043f0b32f9993798a605b [2023-11-29 04:03:53,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:03:53,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:03:53,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:03:53,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:03:53,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:03:53,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:03:53" (1/1) ... [2023-11-29 04:03:53,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce5c904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:53, skipping insertion in model container [2023-11-29 04:03:53,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:03:53" (1/1) ... [2023-11-29 04:03:53,993 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:03:54,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:03:54,128 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:03:54,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:03:54,155 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:03:54,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54 WrapperNode [2023-11-29 04:03:54,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:03:54,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:03:54,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:03:54,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:03:54,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,186 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2023-11-29 04:03:54,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:03:54,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:03:54,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:03:54,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:03:54,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,204 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 04:03:54,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:03:54,214 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:03:54,214 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:03:54,214 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:03:54,215 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (1/1) ... [2023-11-29 04:03:54,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:03:54,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:54,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:03:54,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:03:54,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:03:54,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:03:54,365 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:03:54,367 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:03:54,445 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:03:54,464 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:03:54,465 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 04:03:54,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:03:54 BoogieIcfgContainer [2023-11-29 04:03:54,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:03:54,468 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:03:54,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:03:54,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:03:54,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:03:53" (1/3) ... [2023-11-29 04:03:54,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5600064b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:03:54, skipping insertion in model container [2023-11-29 04:03:54,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:03:54" (2/3) ... [2023-11-29 04:03:54,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5600064b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:03:54, skipping insertion in model container [2023-11-29 04:03:54,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:03:54" (3/3) ... [2023-11-29 04:03:54,474 INFO L112 eAbstractionObserver]: Analyzing ICFG b.14.c [2023-11-29 04:03:54,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:03:54,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 04:03:54,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:03:54,538 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1912e67c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:03:54,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 04:03:54,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 2.0) internal successors, (20), 16 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) [2023-11-29 04:03:54,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 04:03:54,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:54,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 04:03:54,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:54,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:54,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2245537, now seen corresponding path program 1 times [2023-11-29 04:03:54,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:54,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538927379] [2023-11-29 04:03:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:54,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:54,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:54,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538927379] [2023-11-29 04:03:54,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538927379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:03:54,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:03:54,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:03:54,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730824378] [2023-11-29 04:03:54,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:03:54,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:03:54,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:54,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:03:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:54,752 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 2.0) internal successors, (20), 16 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:54,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:54,805 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2023-11-29 04:03:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:03:54,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-29 04:03:54,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:54,814 INFO L225 Difference]: With dead ends: 38 [2023-11-29 04:03:54,814 INFO L226 Difference]: Without dead ends: 19 [2023-11-29 04:03:54,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:54,820 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:54,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:54,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-29 04:03:54,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2023-11-29 04:03:54,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2023-11-29 04:03:54,849 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 4 [2023-11-29 04:03:54,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:54,850 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2023-11-29 04:03:54,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-11-29 04:03:54,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 04:03:54,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:54,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 04:03:54,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:03:54,852 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:54,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:54,852 INFO L85 PathProgramCache]: Analyzing trace with hash 69611701, now seen corresponding path program 1 times [2023-11-29 04:03:54,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:54,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488203719] [2023-11-29 04:03:54,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:54,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:54,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:54,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488203719] [2023-11-29 04:03:54,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488203719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:03:54,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:03:54,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:03:54,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946236888] [2023-11-29 04:03:54,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:03:54,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:03:54,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:54,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:03:54,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:54,893 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:54,905 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2023-11-29 04:03:54,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:03:54,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 04:03:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:54,907 INFO L225 Difference]: With dead ends: 17 [2023-11-29 04:03:54,907 INFO L226 Difference]: Without dead ends: 16 [2023-11-29 04:03:54,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:54,909 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:54,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:54,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-29 04:03:54,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-29 04:03:54,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.6363636363636365) 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) [2023-11-29 04:03:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-11-29 04:03:54,915 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 5 [2023-11-29 04:03:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:54,915 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-11-29 04:03:54,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:54,916 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-29 04:03:54,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:03:54,916 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:54,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:03:54,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:03:54,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:54,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:54,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2137004509, now seen corresponding path program 1 times [2023-11-29 04:03:54,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:54,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162736367] [2023-11-29 04:03:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:54,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:54,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:54,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:54,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162736367] [2023-11-29 04:03:54,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162736367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:03:54,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:03:54,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:03:54,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787135027] [2023-11-29 04:03:54,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:03:54,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:03:54,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:54,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:03:54,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:54,960 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:54,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:54,981 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2023-11-29 04:03:54,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:03:54,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 04:03:54,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:54,982 INFO L225 Difference]: With dead ends: 30 [2023-11-29 04:03:54,982 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 04:03:54,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:54,984 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:54,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:54,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 04:03:54,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-29 04:03:54,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-11-29 04:03:54,990 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 6 [2023-11-29 04:03:54,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:54,990 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-11-29 04:03:54,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:54,991 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-29 04:03:54,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 04:03:54,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:54,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:54,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:03:54,992 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:54,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:54,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1822630281, now seen corresponding path program 1 times [2023-11-29 04:03:54,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:54,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961143787] [2023-11-29 04:03:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:54,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:55,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:55,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:55,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961143787] [2023-11-29 04:03:55,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961143787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:03:55,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:03:55,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:03:55,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635000564] [2023-11-29 04:03:55,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:03:55,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:03:55,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:55,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:03:55,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:55,036 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:55,048 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-29 04:03:55,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:03:55,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 04:03:55,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:55,049 INFO L225 Difference]: With dead ends: 15 [2023-11-29 04:03:55,050 INFO L226 Difference]: Without dead ends: 14 [2023-11-29 04:03:55,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:55,051 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:55,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-29 04:03:55,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-29 04:03:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-29 04:03:55,057 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 7 [2023-11-29 04:03:55,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:55,057 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-29 04:03:55,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,057 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-29 04:03:55,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 04:03:55,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:55,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:55,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 04:03:55,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:55,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:55,059 INFO L85 PathProgramCache]: Analyzing trace with hash -666963803, now seen corresponding path program 1 times [2023-11-29 04:03:55,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:55,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536693525] [2023-11-29 04:03:55,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:55,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:55,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:55,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:55,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536693525] [2023-11-29 04:03:55,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536693525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:03:55,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:03:55,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:03:55,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761374728] [2023-11-29 04:03:55,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:03:55,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:03:55,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:55,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:03:55,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:55,102 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 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) [2023-11-29 04:03:55,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:55,112 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-11-29 04:03:55,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:03:55,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2023-11-29 04:03:55,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:55,114 INFO L225 Difference]: With dead ends: 14 [2023-11-29 04:03:55,114 INFO L226 Difference]: Without dead ends: 13 [2023-11-29 04:03:55,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:55,115 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:55,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:55,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-29 04:03:55,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-29 04:03:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 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) [2023-11-29 04:03:55,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-11-29 04:03:55,120 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2023-11-29 04:03:55,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:55,153 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-11-29 04:03:55,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-29 04:03:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-29 04:03:55,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 04:03:55,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:55,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:55,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 04:03:55,161 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:55,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:55,161 INFO L85 PathProgramCache]: Analyzing trace with hash 798958649, now seen corresponding path program 1 times [2023-11-29 04:03:55,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:55,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847444264] [2023-11-29 04:03:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:55,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:55,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:55,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847444264] [2023-11-29 04:03:55,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847444264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:03:55,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:03:55,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:03:55,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347755484] [2023-11-29 04:03:55,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:03:55,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:03:55,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:55,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:03:55,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:55,217 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:55,229 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2023-11-29 04:03:55,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:03:55,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-29 04:03:55,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:55,231 INFO L225 Difference]: With dead ends: 22 [2023-11-29 04:03:55,231 INFO L226 Difference]: Without dead ends: 21 [2023-11-29 04:03:55,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:03:55,233 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:55,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:55,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-29 04:03:55,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-29 04:03:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2023-11-29 04:03:55,239 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 9 [2023-11-29 04:03:55,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:55,240 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2023-11-29 04:03:55,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2023-11-29 04:03:55,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 04:03:55,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:55,241 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:55,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:03:55,241 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:55,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:55,242 INFO L85 PathProgramCache]: Analyzing trace with hash -999882693, now seen corresponding path program 1 times [2023-11-29 04:03:55,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:55,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035495076] [2023-11-29 04:03:55,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:55,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:55,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:55,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:55,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035495076] [2023-11-29 04:03:55,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035495076] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:55,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243288540] [2023-11-29 04:03:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:55,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:55,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:55,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:55,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:03:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:55,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:03:55,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:55,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:55,395 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:55,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:55,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243288540] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:03:55,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:03:55,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-29 04:03:55,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750625493] [2023-11-29 04:03:55,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:55,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:03:55,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:55,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:03:55,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:03:55,438 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2023-11-29 04:03:55,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:55,470 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2023-11-29 04:03:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:03:55,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) Word has length 11 [2023-11-29 04:03:55,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:55,472 INFO L225 Difference]: With dead ends: 49 [2023-11-29 04:03:55,473 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 04:03:55,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:03:55,474 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:55,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 38 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:55,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 04:03:55,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2023-11-29 04:03:55,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.225) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2023-11-29 04:03:55,485 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 11 [2023-11-29 04:03:55,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:55,486 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2023-11-29 04:03:55,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2023-11-29 04:03:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2023-11-29 04:03:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 04:03:55,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:55,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 04:03:55,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:03:55,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 04:03:55,691 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:55,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:55,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1270495199, now seen corresponding path program 1 times [2023-11-29 04:03:55,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:55,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015325540] [2023-11-29 04:03:55,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:55,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:55,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:55,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015325540] [2023-11-29 04:03:55,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015325540] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:55,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725391853] [2023-11-29 04:03:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:55,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:55,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:55,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:55,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:03:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:55,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:03:55,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:55,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:55,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725391853] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:03:55,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:03:55,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2023-11-29 04:03:55,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932670473] [2023-11-29 04:03:55,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:55,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:03:55,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:55,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:03:55,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:03:55,855 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:55,885 INFO L93 Difference]: Finished difference Result 109 states and 130 transitions. [2023-11-29 04:03:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:03:55,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-29 04:03:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:55,888 INFO L225 Difference]: With dead ends: 109 [2023-11-29 04:03:55,888 INFO L226 Difference]: Without dead ends: 108 [2023-11-29 04:03:55,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:03:55,889 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:55,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 39 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:55,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-29 04:03:55,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-11-29 04:03:55,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 106 states have (on average 1.1415094339622642) internal successors, (121), 107 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 121 transitions. [2023-11-29 04:03:55,908 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 121 transitions. Word has length 16 [2023-11-29 04:03:55,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:55,908 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 121 transitions. [2023-11-29 04:03:55,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 121 transitions. [2023-11-29 04:03:55,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 04:03:55,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:55,911 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2023-11-29 04:03:55,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:03:56,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:56,112 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:56,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:56,112 INFO L85 PathProgramCache]: Analyzing trace with hash -485461727, now seen corresponding path program 2 times [2023-11-29 04:03:56,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:56,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379337575] [2023-11-29 04:03:56,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:56,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:56,253 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:03:56,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:56,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379337575] [2023-11-29 04:03:56,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379337575] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:56,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620582295] [2023-11-29 04:03:56,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:03:56,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:56,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:56,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:56,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:03:56,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:03:56,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:03:56,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:03:56,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:03:56,368 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:56,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620582295] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:03:56,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:03:56,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 10] total 14 [2023-11-29 04:03:56,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903647398] [2023-11-29 04:03:56,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:56,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:03:56,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:56,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:03:56,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:03:56,612 INFO L87 Difference]: Start difference. First operand 108 states and 121 transitions. Second operand has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:56,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:56,658 INFO L93 Difference]: Finished difference Result 108 states and 121 transitions. [2023-11-29 04:03:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:03:56,659 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 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 32 [2023-11-29 04:03:56,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:56,661 INFO L225 Difference]: With dead ends: 108 [2023-11-29 04:03:56,661 INFO L226 Difference]: Without dead ends: 107 [2023-11-29 04:03:56,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=191, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:03:56,662 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:56,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:56,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-29 04:03:56,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 46. [2023-11-29 04:03:56,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1111111111111112) internal successors, (50), 45 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:56,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2023-11-29 04:03:56,679 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 32 [2023-11-29 04:03:56,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:56,680 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2023-11-29 04:03:56,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:56,680 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2023-11-29 04:03:56,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 04:03:56,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:56,681 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2023-11-29 04:03:56,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:03:56,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:56,882 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:56,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:56,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1779341639, now seen corresponding path program 2 times [2023-11-29 04:03:56,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:56,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021327394] [2023-11-29 04:03:56,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:56,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:56,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:56,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021327394] [2023-11-29 04:03:56,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021327394] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:56,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285464897] [2023-11-29 04:03:56,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:03:56,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:56,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:56,961 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:56,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:03:57,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:03:57,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:03:57,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:03:57,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:57,055 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:57,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:57,147 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:57,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285464897] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:03:57,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:03:57,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 04:03:57,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811790287] [2023-11-29 04:03:57,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:57,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:03:57,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:57,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:03:57,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:03:57,149 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:57,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:57,202 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2023-11-29 04:03:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:03:57,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 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 37 [2023-11-29 04:03:57,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:57,203 INFO L225 Difference]: With dead ends: 101 [2023-11-29 04:03:57,203 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 04:03:57,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:03:57,205 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 30 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:57,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 78 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:03:57,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 04:03:57,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-11-29 04:03:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.1111111111111112) internal successors, (110), 99 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 110 transitions. [2023-11-29 04:03:57,221 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 110 transitions. Word has length 37 [2023-11-29 04:03:57,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:57,221 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 110 transitions. [2023-11-29 04:03:57,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 11 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:57,222 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 110 transitions. [2023-11-29 04:03:57,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 04:03:57,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:57,225 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 1, 1, 1] [2023-11-29 04:03:57,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:03:57,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:03:57,427 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:57,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:57,428 INFO L85 PathProgramCache]: Analyzing trace with hash -895884679, now seen corresponding path program 3 times [2023-11-29 04:03:57,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:57,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880698204] [2023-11-29 04:03:57,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:57,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:57,656 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:57,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:57,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880698204] [2023-11-29 04:03:57,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880698204] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:57,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398937279] [2023-11-29 04:03:57,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:03:57,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:57,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:57,661 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:57,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:03:57,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 04:03:57,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:03:57,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:03:57,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:57,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:03:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:58,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398937279] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:03:58,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:03:58,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-29 04:03:58,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768305854] [2023-11-29 04:03:58,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:03:58,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 04:03:58,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:58,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 04:03:58,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:03:58,127 INFO L87 Difference]: Start difference. First operand 100 states and 110 transitions. Second operand has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 23 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:58,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:03:58,247 INFO L93 Difference]: Finished difference Result 209 states and 242 transitions. [2023-11-29 04:03:58,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 04:03:58,248 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 23 states have internal predecessors, (158), 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 79 [2023-11-29 04:03:58,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:03:58,250 INFO L225 Difference]: With dead ends: 209 [2023-11-29 04:03:58,250 INFO L226 Difference]: Without dead ends: 208 [2023-11-29 04:03:58,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:03:58,251 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 93 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:03:58,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 162 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:03:58,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-29 04:03:58,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2023-11-29 04:03:58,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.1111111111111112) internal successors, (230), 207 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:58,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 230 transitions. [2023-11-29 04:03:58,274 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 230 transitions. Word has length 79 [2023-11-29 04:03:58,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:03:58,275 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 230 transitions. [2023-11-29 04:03:58,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 23 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:58,275 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 230 transitions. [2023-11-29 04:03:58,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 04:03:58,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:03:58,281 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 1, 1, 1] [2023-11-29 04:03:58,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:03:58,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:58,487 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:03:58,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:58,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1457337863, now seen corresponding path program 4 times [2023-11-29 04:03:58,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:58,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415914479] [2023-11-29 04:03:58,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:58,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:59,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:59,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415914479] [2023-11-29 04:03:59,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415914479] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:03:59,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580314618] [2023-11-29 04:03:59,224 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 04:03:59,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:03:59,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:03:59,225 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:03:59,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:03:59,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 04:03:59,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:03:59,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 04:03:59,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:03:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:03:59,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:00,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:04:00,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580314618] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:04:00,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:04:00,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2023-11-29 04:04:00,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418110303] [2023-11-29 04:04:00,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:04:00,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-29 04:04:00,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:00,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-29 04:04:00,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 04:04:00,375 INFO L87 Difference]: Start difference. First operand 208 states and 230 transitions. Second operand has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 47 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:00,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:00,629 INFO L93 Difference]: Finished difference Result 425 states and 494 transitions. [2023-11-29 04:04:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 04:04:00,630 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 47 states have internal predecessors, (326), 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 163 [2023-11-29 04:04:00,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:00,632 INFO L225 Difference]: With dead ends: 425 [2023-11-29 04:04:00,632 INFO L226 Difference]: Without dead ends: 424 [2023-11-29 04:04:00,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 04:04:00,634 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 224 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:00,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 330 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:04:00,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-11-29 04:04:00,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2023-11-29 04:04:00,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 423 states have (on average 1.1111111111111112) internal successors, (470), 423 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 470 transitions. [2023-11-29 04:04:00,673 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 470 transitions. Word has length 163 [2023-11-29 04:04:00,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:00,674 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 470 transitions. [2023-11-29 04:04:00,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 47 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:00,674 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 470 transitions. [2023-11-29 04:04:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-11-29 04:04:00,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:00,682 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 46, 1, 1, 1] [2023-11-29 04:04:00,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 04:04:00,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:00,882 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:04:00,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1876666119, now seen corresponding path program 5 times [2023-11-29 04:04:00,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:00,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834996836] [2023-11-29 04:04:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:00,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:04:03,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:04:03,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834996836] [2023-11-29 04:04:03,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834996836] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:04:03,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552478174] [2023-11-29 04:04:03,358 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 04:04:03,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:03,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:04:03,359 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:04:03,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:04:03,547 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-29 04:04:03,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:04:03,551 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 04:04:03,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:04:03,909 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:04:03,910 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:06,426 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:04:06,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552478174] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:04:06,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:04:06,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2023-11-29 04:04:06,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343628822] [2023-11-29 04:04:06,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:04:06,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-29 04:04:06,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:06,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-29 04:04:06,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 04:04:06,433 INFO L87 Difference]: Start difference. First operand 424 states and 470 transitions. Second operand has 96 states, 95 states have (on average 6.968421052631579) internal successors, (662), 95 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:07,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:07,377 INFO L93 Difference]: Finished difference Result 857 states and 998 transitions. [2023-11-29 04:04:07,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-29 04:04:07,378 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.968421052631579) internal successors, (662), 95 states have internal predecessors, (662), 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 331 [2023-11-29 04:04:07,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:07,383 INFO L225 Difference]: With dead ends: 857 [2023-11-29 04:04:07,383 INFO L226 Difference]: Without dead ends: 856 [2023-11-29 04:04:07,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 04:04:07,386 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 590 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:07,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 666 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:04:07,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2023-11-29 04:04:07,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 856. [2023-11-29 04:04:07,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 855 states have (on average 1.1111111111111112) internal successors, (950), 855 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:07,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 950 transitions. [2023-11-29 04:04:07,441 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 950 transitions. Word has length 331 [2023-11-29 04:04:07,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:07,442 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 950 transitions. [2023-11-29 04:04:07,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.968421052631579) internal successors, (662), 95 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:07,442 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 950 transitions. [2023-11-29 04:04:07,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2023-11-29 04:04:07,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:07,455 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 94, 1, 1, 1] [2023-11-29 04:04:07,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:04:07,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 04:04:07,656 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:04:07,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:07,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1449555705, now seen corresponding path program 6 times [2023-11-29 04:04:07,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:07,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781778047] [2023-11-29 04:04:07,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:07,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:14,872 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:04:14,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:04:14,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781778047] [2023-11-29 04:04:14,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781778047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:04:14,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663637795] [2023-11-29 04:04:14,873 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 04:04:14,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:04:14,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:04:14,874 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:04:14,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:04:15,219 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-11-29 04:04:15,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:04:15,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-29 04:04:15,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:04:15,848 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:04:15,848 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:04:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:04:24,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663637795] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:04:24,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:04:24,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2023-11-29 04:04:24,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846955843] [2023-11-29 04:04:24,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:04:24,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-11-29 04:04:24,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:24,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-11-29 04:04:24,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-29 04:04:24,632 INFO L87 Difference]: Start difference. First operand 856 states and 950 transitions. Second operand has 192 states, 191 states have (on average 6.984293193717278) internal successors, (1334), 191 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:33,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:04:33,365 INFO L93 Difference]: Finished difference Result 1721 states and 2006 transitions. [2023-11-29 04:04:33,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-11-29 04:04:33,366 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.984293193717278) internal successors, (1334), 191 states have internal predecessors, (1334), 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 667 [2023-11-29 04:04:33,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:04:33,374 INFO L225 Difference]: With dead ends: 1721 [2023-11-29 04:04:33,374 INFO L226 Difference]: Without dead ends: 1720 [2023-11-29 04:04:33,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1427 GetRequests, 1237 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-11-29 04:04:33,379 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1834 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1834 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:04:33,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 1338 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:04:33,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2023-11-29 04:04:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1720. [2023-11-29 04:04:33,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.1111111111111112) internal successors, (1910), 1719 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:33,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 1910 transitions. [2023-11-29 04:04:33,495 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 1910 transitions. Word has length 667 [2023-11-29 04:04:33,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:04:33,496 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 1910 transitions. [2023-11-29 04:04:33,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.984293193717278) internal successors, (1334), 191 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:33,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 1910 transitions. [2023-11-29 04:04:33,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1340 [2023-11-29 04:04:33,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:04:33,519 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 191, 190, 1, 1, 1] [2023-11-29 04:04:33,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:04:33,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 04:04:33,720 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:04:33,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:33,721 INFO L85 PathProgramCache]: Analyzing trace with hash -941182215, now seen corresponding path program 7 times [2023-11-29 04:04:33,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:33,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20534247] [2023-11-29 04:04:33,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:33,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:05:07,062 INFO L134 CoverageAnalysis]: Checked inductivity of 127015 backedges. 0 proven. 127015 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:05:07,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:05:07,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20534247] [2023-11-29 04:05:07,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20534247] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:05:07,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188748188] [2023-11-29 04:05:07,063 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 04:05:07,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:05:07,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:05:07,064 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:05:07,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:05:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:05:07,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 2492 conjuncts, 192 conjunts are in the unsatisfiable core [2023-11-29 04:05:07,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:05:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 127015 backedges. 0 proven. 127015 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:05:08,636 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:05:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 127015 backedges. 0 proven. 127015 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:05:42,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188748188] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:05:42,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:05:42,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 382 [2023-11-29 04:05:42,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995368203] [2023-11-29 04:05:42,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:05:42,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-11-29 04:05:42,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:05:42,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-11-29 04:05:42,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-29 04:05:42,855 INFO L87 Difference]: Start difference. First operand 1720 states and 1910 transitions. Second operand has 384 states, 383 states have (on average 6.992167101827676) internal successors, (2678), 383 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:07:18,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:07:18,050 INFO L93 Difference]: Finished difference Result 3449 states and 4022 transitions. [2023-11-29 04:07:18,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-11-29 04:07:18,051 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.992167101827676) internal successors, (2678), 383 states have internal predecessors, (2678), 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 1339 [2023-11-29 04:07:18,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:07:18,065 INFO L225 Difference]: With dead ends: 3449 [2023-11-29 04:07:18,065 INFO L226 Difference]: Without dead ends: 3448 [2023-11-29 04:07:18,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2867 GetRequests, 2485 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.1s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-11-29 04:07:18,076 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3841 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3841 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:07:18,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3841 Valid, 2682 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:07:18,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2023-11-29 04:07:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 3448. [2023-11-29 04:07:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 3447 states have (on average 1.1111111111111112) internal successors, (3830), 3447 states have internal predecessors, (3830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:07:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 3830 transitions. [2023-11-29 04:07:18,318 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 3830 transitions. Word has length 1339 [2023-11-29 04:07:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:07:18,320 INFO L495 AbstractCegarLoop]: Abstraction has 3448 states and 3830 transitions. [2023-11-29 04:07:18,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.992167101827676) internal successors, (2678), 383 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:07:18,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 3830 transitions. [2023-11-29 04:07:18,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2684 [2023-11-29 04:07:18,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:07:18,376 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 383, 383, 382, 1, 1, 1] [2023-11-29 04:07:18,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:07:18,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:07:18,577 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 04:07:18,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1591159545, now seen corresponding path program 8 times [2023-11-29 04:07:18,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:18,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516811705] [2023-11-29 04:07:18,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:18,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:10:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 512071 backedges. 0 proven. 512071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:44,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:10:44,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516811705] [2023-11-29 04:10:44,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516811705] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:10:44,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303127391] [2023-11-29 04:10:44,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:10:44,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:10:44,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:10:44,268 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:10:44,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f79694-20f7-4164-9750-545b9dfbecb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:10:45,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:10:45,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:10:45,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 4988 conjuncts, 384 conjunts are in the unsatisfiable core [2023-11-29 04:10:45,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:10:47,593 INFO L134 CoverageAnalysis]: Checked inductivity of 512071 backedges. 0 proven. 512071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:10:47,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:13:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 512071 backedges. 0 proven. 512071 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:13:05,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303127391] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:13:05,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:13:05,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [383, 383, 383] total 766 [2023-11-29 04:13:05,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367736301] [2023-11-29 04:13:05,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:13:05,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2023-11-29 04:13:05,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:13:05,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2023-11-29 04:13:05,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2023-11-29 04:13:05,186 INFO L87 Difference]: Start difference. First operand 3448 states and 3830 transitions. Second operand has 768 states, 767 states have (on average 6.996088657105607) internal successors, (5366), 767 states have internal predecessors, (5366), 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)