./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b4d53423478efbe88c69a2c2de1bb984f61e7e586fd7bb6761452f26ace425f7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:58:00,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:58:00,711 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 21:58:00,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:58:00,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:58:00,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:58:00,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:58:00,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:58:00,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:58:00,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:58:00,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:58:00,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:58:00,745 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:58:00,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:58:00,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:58:00,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:58:00,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:58:00,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:58:00,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:58:00,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:58:00,750 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:58:00,751 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:58:00,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:58:00,752 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:58:00,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:58:00,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:58:00,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:58:00,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:00,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:58:00,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:58:00,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:58:00,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:58:00,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:58:00,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:58:00,766 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:58:00,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:58:00,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:58:00,769 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:58:00,769 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_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4d53423478efbe88c69a2c2de1bb984f61e7e586fd7bb6761452f26ace425f7 [2023-11-06 21:58:01,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:58:01,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:58:01,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:58:01,103 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:58:01,103 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:58:01,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2023-11-06 21:58:04,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:58:04,412 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:58:04,413 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2023-11-06 21:58:04,421 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/data/83ee3ec9d/c4cb22fcdbb04974ba10fac67ec44f5d/FLAG92e40cf63 [2023-11-06 21:58:04,436 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/data/83ee3ec9d/c4cb22fcdbb04974ba10fac67ec44f5d [2023-11-06 21:58:04,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:58:04,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:58:04,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:04,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:58:04,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:58:04,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2acf8bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04, skipping insertion in model container [2023-11-06 21:58:04,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:58:04,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:04,614 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:58:04,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:04,643 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:04,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04 WrapperNode [2023-11-06 21:58:04,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:04,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:04,645 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:04,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:04,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,673 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9 [2023-11-06 21:58:04,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:04,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:04,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:04,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:04,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:04,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:04,692 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:04,692 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:04,693 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (1/1) ... [2023-11-06 21:58:04,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:04,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:04,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:04,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:04,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure mc91 [2023-11-06 21:58:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mc91 [2023-11-06 21:58:04,844 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:04,846 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:04,959 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:04,966 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:04,966 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:58:04,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:04 BoogieIcfgContainer [2023-11-06 21:58:04,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:04,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:04,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:04,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:04,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:04" (1/3) ... [2023-11-06 21:58:04,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e44846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:04, skipping insertion in model container [2023-11-06 21:58:04,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:04" (2/3) ... [2023-11-06 21:58:04,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e44846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:04, skipping insertion in model container [2023-11-06 21:58:04,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:04" (3/3) ... [2023-11-06 21:58:04,979 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthy91_Recursion.c [2023-11-06 21:58:05,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:05,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 21:58:05,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:05,065 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e34ecd8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:05,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-06 21:58:05,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 21:58:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 21:58:05,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:05,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:58:05,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:58:05,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:05,085 INFO L85 PathProgramCache]: Analyzing trace with hash 890133490, now seen corresponding path program 1 times [2023-11-06 21:58:05,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:05,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493658664] [2023-11-06 21:58:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:05,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:05,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:05,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:05,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493658664] [2023-11-06 21:58:05,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493658664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:05,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:05,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:58:05,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175362902] [2023-11-06 21:58:05,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:05,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:05,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:05,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:05,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:05,447 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:05,593 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2023-11-06 21:58:05,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:58:05,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 21:58:05,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:05,605 INFO L225 Difference]: With dead ends: 41 [2023-11-06 21:58:05,606 INFO L226 Difference]: Without dead ends: 36 [2023-11-06 21:58:05,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:58:05,613 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 30 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:05,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 48 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:05,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-06 21:58:05,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2023-11-06 21:58:05,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.45) internal successors, (29), 24 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 21:58:05,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-11-06 21:58:05,659 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 6 [2023-11-06 21:58:05,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:05,660 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-11-06 21:58:05,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,661 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-06 21:58:05,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 21:58:05,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:05,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:58:05,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:58:05,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:58:05,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:05,663 INFO L85 PathProgramCache]: Analyzing trace with hash 890133330, now seen corresponding path program 1 times [2023-11-06 21:58:05,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:05,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341873696] [2023-11-06 21:58:05,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:05,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:05,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:05,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341873696] [2023-11-06 21:58:05,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341873696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:05,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:05,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:05,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98598407] [2023-11-06 21:58:05,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:05,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:05,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:05,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:05,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:05,695 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:05,717 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2023-11-06 21:58:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:05,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 21:58:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:05,719 INFO L225 Difference]: With dead ends: 35 [2023-11-06 21:58:05,719 INFO L226 Difference]: Without dead ends: 34 [2023-11-06 21:58:05,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:05,722 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:05,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 27 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-06 21:58:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2023-11-06 21:58:05,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 21:58:05,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2023-11-06 21:58:05,735 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 6 [2023-11-06 21:58:05,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:05,735 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2023-11-06 21:58:05,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,736 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2023-11-06 21:58:05,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 21:58:05,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:05,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:05,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:58:05,737 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:58:05,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:05,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1824334464, now seen corresponding path program 1 times [2023-11-06 21:58:05,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:05,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746961006] [2023-11-06 21:58:05,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:05,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:05,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:05,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746961006] [2023-11-06 21:58:05,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746961006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:05,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:05,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:05,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068329058] [2023-11-06 21:58:05,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:05,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:05,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:05,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:05,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:05,801 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:05,839 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-11-06 21:58:05,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:05,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 21:58:05,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:05,846 INFO L225 Difference]: With dead ends: 34 [2023-11-06 21:58:05,847 INFO L226 Difference]: Without dead ends: 33 [2023-11-06 21:58:05,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:05,850 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:05,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 25 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:05,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-06 21:58:05,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2023-11-06 21:58:05,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 21:58:05,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-06 21:58:05,863 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 7 [2023-11-06 21:58:05,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:05,864 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-06 21:58:05,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:05,864 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-06 21:58:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 21:58:05,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:05,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:05,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:58:05,868 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:58:05,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:05,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1824329499, now seen corresponding path program 1 times [2023-11-06 21:58:05,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:05,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106395466] [2023-11-06 21:58:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:05,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:06,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:06,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106395466] [2023-11-06 21:58:06,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106395466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:06,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:06,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:58:06,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399172396] [2023-11-06 21:58:06,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:06,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:06,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:06,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:06,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:06,032 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:06,135 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2023-11-06 21:58:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:58:06,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 21:58:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:06,137 INFO L225 Difference]: With dead ends: 46 [2023-11-06 21:58:06,146 INFO L226 Difference]: Without dead ends: 40 [2023-11-06 21:58:06,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:58:06,148 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 23 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:06,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 46 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:06,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-06 21:58:06,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2023-11-06 21:58:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.2) internal successors, (30), 27 states have internal predecessors, (30), 7 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-06 21:58:06,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2023-11-06 21:58:06,177 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 7 [2023-11-06 21:58:06,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:06,177 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2023-11-06 21:58:06,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2023-11-06 21:58:06,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 21:58:06,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:06,178 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:06,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:58:06,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:58:06,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:06,179 INFO L85 PathProgramCache]: Analyzing trace with hash -472406497, now seen corresponding path program 1 times [2023-11-06 21:58:06,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:06,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866086190] [2023-11-06 21:58:06,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:06,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:06,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:06,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:06,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866086190] [2023-11-06 21:58:06,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866086190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:06,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:06,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:58:06,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655704842] [2023-11-06 21:58:06,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:06,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:06,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:06,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:06,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:06,242 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:06,315 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2023-11-06 21:58:06,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:58:06,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-06 21:58:06,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:06,317 INFO L225 Difference]: With dead ends: 56 [2023-11-06 21:58:06,317 INFO L226 Difference]: Without dead ends: 55 [2023-11-06 21:58:06,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:06,319 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:06,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 41 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:06,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-06 21:58:06,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2023-11-06 21:58:06,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 36 states have internal predecessors, (40), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-06 21:58:06,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2023-11-06 21:58:06,336 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 12 [2023-11-06 21:58:06,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:06,336 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2023-11-06 21:58:06,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:06,337 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2023-11-06 21:58:06,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 21:58:06,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:06,338 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:06,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 21:58:06,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:58:06,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:06,339 INFO L85 PathProgramCache]: Analyzing trace with hash -926723715, now seen corresponding path program 1 times [2023-11-06 21:58:06,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:06,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316378554] [2023-11-06 21:58:06,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:06,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:06,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 21:58:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:06,485 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:58:06,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:06,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316378554] [2023-11-06 21:58:06,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316378554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:06,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:06,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:58:06,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005716699] [2023-11-06 21:58:06,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:06,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:58:06,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:06,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:58:06,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:06,489 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:06,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:06,635 INFO L93 Difference]: Finished difference Result 101 states and 130 transitions. [2023-11-06 21:58:06,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:58:06,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-06 21:58:06,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:06,638 INFO L225 Difference]: With dead ends: 101 [2023-11-06 21:58:06,638 INFO L226 Difference]: Without dead ends: 100 [2023-11-06 21:58:06,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:58:06,640 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:06,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 65 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:06,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-06 21:58:06,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 90. [2023-11-06 21:58:06,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 66 states have internal predecessors, (70), 19 states have call successors, (19), 6 states have call predecessors, (19), 8 states have return successors, (22), 17 states have call predecessors, (22), 16 states have call successors, (22) [2023-11-06 21:58:06,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 111 transitions. [2023-11-06 21:58:06,664 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 111 transitions. Word has length 19 [2023-11-06 21:58:06,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:06,665 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 111 transitions. [2023-11-06 21:58:06,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:06,666 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 111 transitions. [2023-11-06 21:58:06,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-06 21:58:06,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:06,667 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:06,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 21:58:06,667 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:58:06,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1336330992, now seen corresponding path program 1 times [2023-11-06 21:58:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:06,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157341945] [2023-11-06 21:58:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:06,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:06,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 21:58:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:58:06,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:06,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157341945] [2023-11-06 21:58:06,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157341945] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:06,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055811820] [2023-11-06 21:58:06,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:06,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:06,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:06,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:06,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:58:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:06,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 21:58:06,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:07,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:07,458 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:07,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055811820] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:07,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:07,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 22 [2023-11-06 21:58:07,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043078925] [2023-11-06 21:58:07,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:07,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-06 21:58:07,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:07,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-06 21:58:07,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2023-11-06 21:58:07,461 INFO L87 Difference]: Start difference. First operand 90 states and 111 transitions. Second operand has 23 states, 20 states have (on average 2.25) internal successors, (45), 18 states have internal predecessors, (45), 9 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 21:58:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:07,838 INFO L93 Difference]: Finished difference Result 99 states and 128 transitions. [2023-11-06 21:58:07,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 21:58:07,839 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 2.25) internal successors, (45), 18 states have internal predecessors, (45), 9 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2023-11-06 21:58:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:07,841 INFO L225 Difference]: With dead ends: 99 [2023-11-06 21:58:07,841 INFO L226 Difference]: Without dead ends: 98 [2023-11-06 21:58:07,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=287, Invalid=835, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 21:58:07,844 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 93 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:07,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 54 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:58:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-06 21:58:07,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2023-11-06 21:58:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 65 states have internal predecessors, (68), 19 states have call successors, (19), 6 states have call predecessors, (19), 8 states have return successors, (22), 17 states have call predecessors, (22), 16 states have call successors, (22) [2023-11-06 21:58:07,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2023-11-06 21:58:07,865 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 20 [2023-11-06 21:58:07,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:07,865 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2023-11-06 21:58:07,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 2.25) internal successors, (45), 18 states have internal predecessors, (45), 9 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 21:58:07,866 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2023-11-06 21:58:07,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-06 21:58:07,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:07,868 INFO L195 NwaCegarLoop]: trace histogram [7, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:07,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:08,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:08,079 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 21:58:08,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:08,080 INFO L85 PathProgramCache]: Analyzing trace with hash -5036456, now seen corresponding path program 1 times [2023-11-06 21:58:08,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:08,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418081804] [2023-11-06 21:58:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:08,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-06 21:58:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:08,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-06 21:58:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-06 21:58:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:08,328 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-06 21:58:08,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:08,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418081804] [2023-11-06 21:58:08,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418081804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:08,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:08,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 21:58:08,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939308961] [2023-11-06 21:58:08,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:08,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:58:08,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:08,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:58:08,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:58:08,331 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 21:58:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:08,489 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2023-11-06 21:58:08,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 21:58:08,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2023-11-06 21:58:08,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:08,491 INFO L225 Difference]: With dead ends: 93 [2023-11-06 21:58:08,491 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 21:58:08,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-06 21:58:08,500 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 20 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:08,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 67 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:08,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 21:58:08,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 21:58:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:08,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 21:58:08,506 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-11-06 21:58:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:08,506 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 21:58:08,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 21:58:08,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 21:58:08,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 21:58:08,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-06 21:58:08,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-06 21:58:08,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-06 21:58:08,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-06 21:58:08,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:58:08,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 21:58:08,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 21:58:08,757 INFO L895 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2023-11-06 21:58:08,757 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 21:58:08,757 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2023-11-06 21:58:08,757 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 17) no Hoare annotation was computed. [2023-11-06 21:58:08,757 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 21:58:08,757 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 21:58:08,757 INFO L899 garLoopResultBuilder]: For program point mc91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-06 21:58:08,758 INFO L899 garLoopResultBuilder]: For program point mc91FINAL(lines 8 12) no Hoare annotation was computed. [2023-11-06 21:58:08,758 INFO L899 garLoopResultBuilder]: For program point mc91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-06 21:58:08,758 INFO L899 garLoopResultBuilder]: For program point mc91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2023-11-06 21:58:08,758 INFO L899 garLoopResultBuilder]: For program point mc91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2023-11-06 21:58:08,758 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-11-06 21:58:08,758 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 11) no Hoare annotation was computed. [2023-11-06 21:58:08,759 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2023-11-06 21:58:08,759 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 12) the Hoare annotation is: true [2023-11-06 21:58:08,759 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2023-11-06 21:58:08,759 INFO L895 garLoopResultBuilder]: At program point L11-2(line 11) the Hoare annotation is: (let ((.cse0 (= mc91_~n |mc91_#in~n|))) (and (or (< 2147483648 |mc91_#in~n|) (< |mc91_#in~n| 91) (and .cse0 (<= mc91_~n 100))) (or .cse0 (< 111 |mc91_#in~n|) (< (+ |mc91_#in~n| 2147483648) 0)))) [2023-11-06 21:58:08,759 INFO L899 garLoopResultBuilder]: For program point L10-2(line 10) no Hoare annotation was computed. [2023-11-06 21:58:08,759 INFO L899 garLoopResultBuilder]: For program point L11-3(line 11) no Hoare annotation was computed. [2023-11-06 21:58:08,760 INFO L895 garLoopResultBuilder]: At program point L11-4(line 11) the Hoare annotation is: (let ((.cse0 (= mc91_~n |mc91_#in~n|))) (and (or (< 2147483648 |mc91_#in~n|) (< |mc91_#in~n| 91) (and .cse0 (<= mc91_~n 100))) (or (and .cse0 (<= 91 |mc91_#t~ret0|) (<= |mc91_#t~ret0| 2147483648)) (< 2147483647 |mc91_#in~n|) (< (+ |mc91_#in~n| 2147483648) 0)))) [2023-11-06 21:58:08,760 INFO L899 garLoopResultBuilder]: For program point L11-5(line 11) no Hoare annotation was computed. [2023-11-06 21:58:08,760 INFO L899 garLoopResultBuilder]: For program point mc91EXIT(lines 8 12) no Hoare annotation was computed. [2023-11-06 21:58:08,766 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:08,768 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:58:08,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:58:08 BoogieIcfgContainer [2023-11-06 21:58:08,773 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:58:08,773 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:58:08,773 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:58:08,774 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:58:08,774 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:04" (3/4) ... [2023-11-06 21:58:08,776 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:58:08,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mc91 [2023-11-06 21:58:08,791 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-06 21:58:08,791 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 21:58:08,791 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-06 21:58:08,840 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:58:08,840 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:58:08,840 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:58:08,841 INFO L158 Benchmark]: Toolchain (without parser) took 4400.20ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 62.1MB in the end (delta: 77.5MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. [2023-11-06 21:58:08,841 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 81.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:08,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.35ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 130.2MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:58:08,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.37ms. Allocated memory is still 169.9MB. Free memory was 130.2MB in the beginning and 128.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:58:08,842 INFO L158 Benchmark]: Boogie Preprocessor took 16.90ms. Allocated memory is still 169.9MB. Free memory was 128.9MB in the beginning and 127.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:08,843 INFO L158 Benchmark]: RCFGBuilder took 276.88ms. Allocated memory is still 169.9MB. Free memory was 127.9MB in the beginning and 118.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 21:58:08,843 INFO L158 Benchmark]: TraceAbstraction took 3800.87ms. Allocated memory is still 169.9MB. Free memory was 118.3MB in the beginning and 65.2MB in the end (delta: 53.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2023-11-06 21:58:08,844 INFO L158 Benchmark]: Witness Printer took 67.03ms. Allocated memory is still 169.9MB. Free memory was 65.2MB in the beginning and 62.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:58:08,846 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 121.6MB. Free memory was 82.0MB in the beginning and 81.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.35ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 130.2MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.37ms. Allocated memory is still 169.9MB. Free memory was 130.2MB in the beginning and 128.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.90ms. Allocated memory is still 169.9MB. Free memory was 128.9MB in the beginning and 127.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.88ms. Allocated memory is still 169.9MB. Free memory was 127.9MB in the beginning and 118.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3800.87ms. Allocated memory is still 169.9MB. Free memory was 118.3MB in the beginning and 65.2MB in the end (delta: 53.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * Witness Printer took 67.03ms. Allocated memory is still 169.9MB. Free memory was 65.2MB in the beginning and 62.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 8, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 225 mSDsluCounter, 373 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 247 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 429 IncrementalHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 126 mSDtfsCounter, 429 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=6, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 43 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 58 PreInvPairs, 77 NumberOfFragments, 71 HoareAnnotationTreeSize, 58 FomulaSimplifications, 189 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 375 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 364 SizeOfPredicates, 4 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 93/107 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:58:08,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52c12206-e36e-477f-a077-eb3fd1165292/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE