./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/aviad.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/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_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/aviad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/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_ad2c03a1-624a-473e-935a-b98b247a7bb6/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 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:09:28,769 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:09:28,849 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 07:09:28,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:09:28,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:09:28,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:09:28,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:09:28,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:09:28,881 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:09:28,882 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:09:28,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:09:28,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:09:28,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:09:28,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:09:28,885 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:09:28,885 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:09:28,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:09:28,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:09:28,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:09:28,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:09:28,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:09:28,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:09:28,892 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 07:09:28,892 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:09:28,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:09:28,893 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:09:28,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:09:28,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:09:28,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:09:28,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:09:28,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:09:28,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:09:28,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:09:28,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:09:28,896 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:09:28,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:09:28,896 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:09:28,896 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:09:28,896 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:09:28,897 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:09:28,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:09:28,897 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_ad2c03a1-624a-473e-935a-b98b247a7bb6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 [2023-11-29 07:09:29,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:09:29,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:09:29,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:09:29,172 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:09:29,173 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:09:29,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-crafted-lit/aviad.c [2023-11-29 07:09:31,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:09:32,047 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:09:32,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/sv-benchmarks/c/termination-crafted-lit/aviad.c [2023-11-29 07:09:32,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/data/ea2ca93ec/bae41e72ec6c43659f15a6f0379dd4b2/FLAG1f602c4a8 [2023-11-29 07:09:32,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/data/ea2ca93ec/bae41e72ec6c43659f15a6f0379dd4b2 [2023-11-29 07:09:32,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:09:32,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:09:32,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:09:32,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:09:32,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:09:32,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f875c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32, skipping insertion in model container [2023-11-29 07:09:32,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,464 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:09:32,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:09:32,581 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:09:32,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:09:32,607 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:09:32,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32 WrapperNode [2023-11-29 07:09:32,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:09:32,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:09:32,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:09:32,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:09:32,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,646 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2023-11-29 07:09:32,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:09:32,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:09:32,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:09:32,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:09:32,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,659 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,666 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 07:09:32,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:09:32,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:09:32,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:09:32,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:09:32,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (1/1) ... [2023-11-29 07:09:32,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:09:32,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:32,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:09:32,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:09:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:09:32,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:09:32,804 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:09:32,807 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:09:32,929 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:09:32,961 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:09:32,961 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 07:09:32,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:32 BoogieIcfgContainer [2023-11-29 07:09:32,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:09:32,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:09:32,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:09:32,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:09:32,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:09:32" (1/3) ... [2023-11-29 07:09:32,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7490a185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:32, skipping insertion in model container [2023-11-29 07:09:32,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:09:32" (2/3) ... [2023-11-29 07:09:32,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7490a185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:09:32, skipping insertion in model container [2023-11-29 07:09:32,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:09:32" (3/3) ... [2023-11-29 07:09:32,972 INFO L112 eAbstractionObserver]: Analyzing ICFG aviad.c [2023-11-29 07:09:32,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:09:32,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 07:09:33,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:09:33,059 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;@550b360d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:09:33,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 07:09:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 17 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 07:09:33,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 07:09:33,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:33,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 07:09:33,072 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:09:33,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:33,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2185955, now seen corresponding path program 1 times [2023-11-29 07:09:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:33,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372886464] [2023-11-29 07:09:33,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:33,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:33,277 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 07:09:33,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:33,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372886464] [2023-11-29 07:09:33,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372886464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:33,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:33,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:09:33,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279232817] [2023-11-29 07:09:33,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:33,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:09:33,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:33,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:09:33,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:09:33,326 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 17 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 07:09:33,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:33,370 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-11-29 07:09:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:09:33,373 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 07:09:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:33,383 INFO L225 Difference]: With dead ends: 20 [2023-11-29 07:09:33,383 INFO L226 Difference]: Without dead ends: 14 [2023-11-29 07:09:33,386 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 07:09:33,390 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 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 07:09:33,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:33,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-29 07:09:33,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-29 07:09:33,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.5) 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 07:09:33,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-29 07:09:33,429 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2023-11-29 07:09:33,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:33,430 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-29 07:09:33,430 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 07:09:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-29 07:09:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 07:09:33,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:33,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 07:09:33,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 07:09:33,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:09:33,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:33,433 INFO L85 PathProgramCache]: Analyzing trace with hash 67764659, now seen corresponding path program 1 times [2023-11-29 07:09:33,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:33,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99824535] [2023-11-29 07:09:33,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:33,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:33,507 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 07:09:33,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:33,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99824535] [2023-11-29 07:09:33,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99824535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:33,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:33,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 07:09:33,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492428340] [2023-11-29 07:09:33,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:33,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:09:33,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:33,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:09:33,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:09:33,512 INFO L87 Difference]: Start difference. First operand 14 states and 15 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 07:09:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:33,532 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-11-29 07:09:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:09:33,533 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 07:09:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:33,533 INFO L225 Difference]: With dead ends: 14 [2023-11-29 07:09:33,533 INFO L226 Difference]: Without dead ends: 12 [2023-11-29 07:09:33,534 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 07:09:33,536 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:33,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-29 07:09:33,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-29 07:09:33,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:33,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-11-29 07:09:33,541 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2023-11-29 07:09:33,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:33,542 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-29 07:09:33,542 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 07:09:33,542 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-29 07:09:33,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 07:09:33,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:33,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:33,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 07:09:33,544 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:09:33,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:33,545 INFO L85 PathProgramCache]: Analyzing trace with hash 697329653, now seen corresponding path program 1 times [2023-11-29 07:09:33,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:33,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719126842] [2023-11-29 07:09:33,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:33,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:33,601 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 07:09:33,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:33,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719126842] [2023-11-29 07:09:33,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719126842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:33,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:33,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:09:33,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818209866] [2023-11-29 07:09:33,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:33,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:33,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:33,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:33,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:33,604 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 07:09:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:33,634 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2023-11-29 07:09:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:09:33,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 07:09:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:33,635 INFO L225 Difference]: With dead ends: 12 [2023-11-29 07:09:33,635 INFO L226 Difference]: Without dead ends: 11 [2023-11-29 07:09:33,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:09:33,637 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:33,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:33,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-29 07:09:33,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-29 07:09:33,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:33,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-29 07:09:33,642 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2023-11-29 07:09:33,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:33,643 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-29 07:09:33,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 07:09:33,643 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-29 07:09:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 07:09:33,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:33,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:33,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 07:09:33,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:09:33,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:33,645 INFO L85 PathProgramCache]: Analyzing trace with hash 142382823, now seen corresponding path program 1 times [2023-11-29 07:09:33,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:33,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683590022] [2023-11-29 07:09:33,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:33,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:33,695 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 07:09:33,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:33,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683590022] [2023-11-29 07:09:33,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683590022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:33,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:33,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:09:33,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370642956] [2023-11-29 07:09:33,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:33,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:33,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:33,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:33,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:33,699 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:09:33,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:33,723 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2023-11-29 07:09:33,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:09:33,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:09:33,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:33,725 INFO L225 Difference]: With dead ends: 21 [2023-11-29 07:09:33,725 INFO L226 Difference]: Without dead ends: 20 [2023-11-29 07:09:33,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:09:33,727 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:33,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 24 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:33,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-29 07:09:33,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-29 07:09:33,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 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 07:09:33,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-11-29 07:09:33,733 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 8 [2023-11-29 07:09:33,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:33,734 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-29 07:09:33,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 07:09:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-11-29 07:09:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 07:09:33,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:33,735 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-29 07:09:33,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 07:09:33,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:09:33,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash 832970600, now seen corresponding path program 1 times [2023-11-29 07:09:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:33,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104559428] [2023-11-29 07:09:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:33,829 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 07:09:33,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:33,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104559428] [2023-11-29 07:09:33,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104559428] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:33,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228427179] [2023-11-29 07:09:33,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:33,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:33,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:33,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:33,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 07:09:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:33,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:09:33,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:33,945 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 07:09:33,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:34,010 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 07:09:34,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228427179] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:34,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:34,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-11-29 07:09:34,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796927718] [2023-11-29 07:09:34,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:34,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:09:34,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:34,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:09:34,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:09:34,013 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:34,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:34,084 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2023-11-29 07:09:34,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:09:34,085 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-29 07:09:34,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:34,086 INFO L225 Difference]: With dead ends: 48 [2023-11-29 07:09:34,086 INFO L226 Difference]: Without dead ends: 47 [2023-11-29 07:09:34,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 07:09:34,089 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 30 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:34,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 53 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:34,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-29 07:09:34,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-29 07:09:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 46 states have internal predecessors, (52), 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 07:09:34,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2023-11-29 07:09:34,098 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 15 [2023-11-29 07:09:34,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:34,099 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2023-11-29 07:09:34,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:34,099 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2023-11-29 07:09:34,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 07:09:34,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:34,101 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1] [2023-11-29 07:09:34,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:34,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:34,302 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 07:09:34,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:34,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2062169945, now seen corresponding path program 2 times [2023-11-29 07:09:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:34,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584763455] [2023-11-29 07:09:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:34,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:34,531 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 07:09:34,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:34,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584763455] [2023-11-29 07:09:34,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584763455] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:34,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637867190] [2023-11-29 07:09:34,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:09:34,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:34,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:34,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:34,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 07:09:34,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:09:34,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:34,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 07:09:34,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:34,663 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 07:09:34,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:34,853 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 07:09:34,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637867190] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:34,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:34,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2023-11-29 07:09:34,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080747375] [2023-11-29 07:09:34,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:34,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 07:09:34,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:34,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 07:09:34,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 07:09:34,856 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 22 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 21 states have internal predecessors, (72), 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 07:09:35,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:35,057 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2023-11-29 07:09:35,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 07:09:35,058 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 21 states have internal predecessors, (72), 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 36 [2023-11-29 07:09:35,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:35,059 INFO L225 Difference]: With dead ends: 102 [2023-11-29 07:09:35,059 INFO L226 Difference]: Without dead ends: 101 [2023-11-29 07:09:35,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2023-11-29 07:09:35,061 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 110 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:35,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 96 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:09:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-29 07:09:35,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-29 07:09:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.12) internal successors, (112), 100 states have internal predecessors, (112), 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 07:09:35,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2023-11-29 07:09:35,073 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 36 [2023-11-29 07:09:35,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:35,074 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2023-11-29 07:09:35,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 21 states have internal predecessors, (72), 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 07:09:35,074 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2023-11-29 07:09:35,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 07:09:35,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:35,077 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 1, 1] [2023-11-29 07:09:35,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 07:09:35,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:35,278 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:09:35,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:35,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1777772729, now seen corresponding path program 3 times [2023-11-29 07:09:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:35,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901275056] [2023-11-29 07:09:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:35,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:35,957 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 07:09:35,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:35,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901275056] [2023-11-29 07:09:35,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901275056] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:35,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136061336] [2023-11-29 07:09:35,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:09:35,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:35,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:35,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:35,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 07:09:36,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 07:09:36,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:36,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:09:36,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 123 proven. 1 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-11-29 07:09:36,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-11-29 07:09:36,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136061336] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:36,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:09:36,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [22, 6] total 31 [2023-11-29 07:09:36,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997267170] [2023-11-29 07:09:36,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:36,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:09:36,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:36,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:09:36,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2023-11-29 07:09:36,345 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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 07:09:36,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:36,430 INFO L93 Difference]: Finished difference Result 262 states and 292 transitions. [2023-11-29 07:09:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:09:36,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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) Word has length 78 [2023-11-29 07:09:36,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:36,432 INFO L225 Difference]: With dead ends: 262 [2023-11-29 07:09:36,432 INFO L226 Difference]: Without dead ends: 175 [2023-11-29 07:09:36,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2023-11-29 07:09:36,434 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:36,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 28 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 07:09:36,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-29 07:09:36,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 154. [2023-11-29 07:09:36,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.0849673202614378) internal successors, (166), 153 states have internal predecessors, (166), 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 07:09:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 166 transitions. [2023-11-29 07:09:36,454 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 166 transitions. Word has length 78 [2023-11-29 07:09:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:36,455 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 166 transitions. [2023-11-29 07:09:36,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 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 07:09:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 166 transitions. [2023-11-29 07:09:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 07:09:36,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:36,458 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 6, 6, 6, 5, 5, 5, 1, 1] [2023-11-29 07:09:36,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:36,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:36,664 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 07:09:36,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:36,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1842428265, now seen corresponding path program 1 times [2023-11-29 07:09:36,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:36,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514381209] [2023-11-29 07:09:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:36,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:37,326 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:37,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:37,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514381209] [2023-11-29 07:09:37,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514381209] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:37,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048085476] [2023-11-29 07:09:37,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:37,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:37,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:37,328 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:37,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 07:09:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:37,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 07:09:37,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:37,514 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:37,514 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:38,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048085476] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:38,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:38,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 44 [2023-11-29 07:09:38,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954533357] [2023-11-29 07:09:38,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:38,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-29 07:09:38,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:38,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-29 07:09:38,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 07:09:38,181 INFO L87 Difference]: Start difference. First operand 154 states and 166 transitions. Second operand has 46 states, 45 states have (on average 3.466666666666667) internal successors, (156), 45 states have internal predecessors, (156), 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 07:09:38,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:38,789 INFO L93 Difference]: Finished difference Result 323 states and 370 transitions. [2023-11-29 07:09:38,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 07:09:38,790 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.466666666666667) internal successors, (156), 45 states have internal predecessors, (156), 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 78 [2023-11-29 07:09:38,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:38,793 INFO L225 Difference]: With dead ends: 323 [2023-11-29 07:09:38,793 INFO L226 Difference]: Without dead ends: 322 [2023-11-29 07:09:38,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2023-11-29 07:09:38,797 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 190 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:38,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 208 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 07:09:38,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-29 07:09:38,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2023-11-29 07:09:38,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.0778816199376946) internal successors, (346), 321 states have internal predecessors, (346), 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 07:09:38,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 346 transitions. [2023-11-29 07:09:38,830 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 346 transitions. Word has length 78 [2023-11-29 07:09:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:38,831 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 346 transitions. [2023-11-29 07:09:38,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.466666666666667) internal successors, (156), 45 states have internal predecessors, (156), 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 07:09:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 346 transitions. [2023-11-29 07:09:38,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 07:09:38,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:38,836 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 12, 12, 12, 11, 11, 11, 1, 1] [2023-11-29 07:09:38,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 07:09:39,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:39,042 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 07:09:39,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:39,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1581297531, now seen corresponding path program 2 times [2023-11-29 07:09:39,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:39,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184571011] [2023-11-29 07:09:39,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:39,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1507 backedges. 0 proven. 1507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:41,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:41,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184571011] [2023-11-29 07:09:41,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184571011] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:41,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940547581] [2023-11-29 07:09:41,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:09:41,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:41,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:41,239 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:41,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 07:09:41,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:09:41,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:41,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 07:09:41,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:41,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1507 backedges. 0 proven. 1507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:41,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1507 backedges. 0 proven. 1507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:43,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940547581] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:43,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:43,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 92 [2023-11-29 07:09:43,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264625657] [2023-11-29 07:09:43,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:43,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-11-29 07:09:43,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:43,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-11-29 07:09:43,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2023-11-29 07:09:43,323 INFO L87 Difference]: Start difference. First operand 322 states and 346 transitions. Second operand has 94 states, 93 states have (on average 3.4838709677419355) internal successors, (324), 93 states have internal predecessors, (324), 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 07:09:44,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:44,993 INFO L93 Difference]: Finished difference Result 659 states and 754 transitions. [2023-11-29 07:09:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-11-29 07:09:44,994 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4838709677419355) internal successors, (324), 93 states have internal predecessors, (324), 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 162 [2023-11-29 07:09:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:44,997 INFO L225 Difference]: With dead ends: 659 [2023-11-29 07:09:44,997 INFO L226 Difference]: Without dead ends: 658 [2023-11-29 07:09:45,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2023-11-29 07:09:45,003 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 415 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:45,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 372 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 07:09:45,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-11-29 07:09:45,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2023-11-29 07:09:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 657 states have (on average 1.0745814307458144) internal successors, (706), 657 states have internal predecessors, (706), 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 07:09:45,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 706 transitions. [2023-11-29 07:09:45,037 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 706 transitions. Word has length 162 [2023-11-29 07:09:45,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:45,037 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 706 transitions. [2023-11-29 07:09:45,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4838709677419355) internal successors, (324), 93 states have internal predecessors, (324), 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 07:09:45,038 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 706 transitions. [2023-11-29 07:09:45,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-11-29 07:09:45,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:45,044 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 24, 24, 24, 23, 23, 23, 1, 1] [2023-11-29 07:09:45,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 07:09:45,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 07:09:45,250 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 07:09:45,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:45,251 INFO L85 PathProgramCache]: Analyzing trace with hash -756945731, now seen corresponding path program 3 times [2023-11-29 07:09:45,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:09:45,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421860175] [2023-11-29 07:09:45,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:45,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:09:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 6463 backedges. 0 proven. 6463 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:50,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:09:50,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421860175] [2023-11-29 07:09:50,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421860175] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:09:50,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774528874] [2023-11-29 07:09:50,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:09:50,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:09:50,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:09:50,926 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:09:50,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 07:09:51,283 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 41 check-sat command(s) [2023-11-29 07:09:51,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:09:51,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-29 07:09:51,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:51,687 INFO L134 CoverageAnalysis]: Checked inductivity of 6463 backedges. 0 proven. 6463 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:51,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:09:57,648 INFO L134 CoverageAnalysis]: Checked inductivity of 6463 backedges. 0 proven. 6463 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:57,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774528874] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:09:57,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:09:57,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94, 94] total 188 [2023-11-29 07:09:57,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138932349] [2023-11-29 07:09:57,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:09:57,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2023-11-29 07:09:57,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:09:57,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2023-11-29 07:09:57,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2023-11-29 07:09:57,661 INFO L87 Difference]: Start difference. First operand 658 states and 706 transitions. Second operand has 190 states, 189 states have (on average 3.492063492063492) internal successors, (660), 189 states have internal predecessors, (660), 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 07:10:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:03,930 INFO L93 Difference]: Finished difference Result 1331 states and 1522 transitions. [2023-11-29 07:10:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2023-11-29 07:10:03,931 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.492063492063492) internal successors, (660), 189 states have internal predecessors, (660), 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 330 [2023-11-29 07:10:03,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:03,936 INFO L225 Difference]: With dead ends: 1331 [2023-11-29 07:10:03,936 INFO L226 Difference]: Without dead ends: 1330 [2023-11-29 07:10:03,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2023-11-29 07:10:03,942 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1079 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:03,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 694 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 07:10:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2023-11-29 07:10:03,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1330. [2023-11-29 07:10:03,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 1.072987208427389) internal successors, (1426), 1329 states have internal predecessors, (1426), 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 07:10:04,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1426 transitions. [2023-11-29 07:10:04,002 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1426 transitions. Word has length 330 [2023-11-29 07:10:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:04,002 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 1426 transitions. [2023-11-29 07:10:04,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.492063492063492) internal successors, (660), 189 states have internal predecessors, (660), 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 07:10:04,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1426 transitions. [2023-11-29 07:10:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2023-11-29 07:10:04,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:04,022 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 48, 48, 48, 47, 47, 47, 1, 1] [2023-11-29 07:10:04,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 07:10:04,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 07:10:04,223 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 07:10:04,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:04,223 INFO L85 PathProgramCache]: Analyzing trace with hash -488317651, now seen corresponding path program 4 times [2023-11-29 07:10:04,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:10:04,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197665048] [2023-11-29 07:10:04,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:04,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:10:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 26743 backedges. 22700 proven. 524 refuted. 0 times theorem prover too weak. 3519 trivial. 0 not checked. [2023-11-29 07:10:22,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:10:22,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197665048] [2023-11-29 07:10:22,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197665048] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:10:22,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262162884] [2023-11-29 07:10:22,303 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 07:10:22,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:10:22,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:10:22,304 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 07:10:22,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 07:10:22,629 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 07:10:22,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:10:22,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 191 conjunts are in the unsatisfiable core [2023-11-29 07:10:22,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 26743 backedges. 0 proven. 26743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:37,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:11:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 26743 backedges. 0 proven. 26743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:11:06,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262162884] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:11:06,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 07:11:06,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 190, 190] total 473 [2023-11-29 07:11:06,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561325192] [2023-11-29 07:11:06,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 07:11:06,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 474 states [2023-11-29 07:11:06,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:11:06,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 474 interpolants. [2023-11-29 07:11:06,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39994, Invalid=184208, Unknown=0, NotChecked=0, Total=224202 [2023-11-29 07:11:06,739 INFO L87 Difference]: Start difference. First operand 1330 states and 1426 transitions. Second operand has 474 states, 474 states have (on average 3.7236286919831225) internal successors, (1765), 473 states have internal predecessors, (1765), 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 07:20:07,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:20:07,529 INFO L93 Difference]: Finished difference Result 7600 states and 8131 transitions. [2023-11-29 07:20:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3377 states. [2023-11-29 07:20:07,531 INFO L78 Accepts]: Start accepts. Automaton has has 474 states, 474 states have (on average 3.7236286919831225) internal successors, (1765), 473 states have internal predecessors, (1765), 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 666 [2023-11-29 07:20:07,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:20:07,533 INFO L225 Difference]: With dead ends: 7600 [2023-11-29 07:20:07,533 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 07:20:08,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4798 GetRequests, 951 SyntacticMatches, 0 SemanticMatches, 3847 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6529980 ImplicationChecksByTransitivity, 362.9s TimeCoverageRelationStatistics Valid=1460587, Invalid=13350365, Unknown=0, NotChecked=0, Total=14810952 [2023-11-29 07:20:08,582 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 3352 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 16383 mSolverCounterSat, 959 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3352 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 17342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 959 IncrementalHoareTripleChecker+Valid, 16383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:20:08,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3352 Valid, 43 Invalid, 17342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [959 Valid, 16383 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2023-11-29 07:20:08,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 07:20:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 07:20:08,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:20:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 07:20:08,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 666 [2023-11-29 07:20:08,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:20:08,583 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 07:20:08,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 474 states, 474 states have (on average 3.7236286919831225) internal successors, (1765), 473 states have internal predecessors, (1765), 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 07:20:08,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 07:20:08,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 07:20:08,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-29 07:20:08,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-29 07:20:08,586 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-29 07:20:08,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-29 07:20:08,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-29 07:20:08,587 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-29 07:20:08,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 07:20:08,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad2c03a1-624a-473e-935a-b98b247a7bb6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 07:20:08,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.