./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_21.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_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/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_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_21.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/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_107a18fb-996e-4cf2-8ce7-0e20281949d1/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 09b58293612eb320ba1daf9ca7fe4947dbbcf9de2baf65b6860d058db21da006 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:09:08,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:09:08,664 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:09:08,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:09:08,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:09:08,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:09:08,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:09:08,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:09:08,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:09:08,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:09:08,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:09:08,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:09:08,709 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:09:08,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:09:08,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:09:08,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:09:08,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:09:08,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:09:08,714 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:09:08,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:09:08,715 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:09:08,720 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:09:08,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:09:08,721 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:09:08,722 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:09:08,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:09:08,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:09:08,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:09:08,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:09:08,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:09:08,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:09:08,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:09:08,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:09:08,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:09:08,730 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:09:08,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:09:08,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:09:08,731 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:09:08,732 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_107a18fb-996e-4cf2-8ce7-0e20281949d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09b58293612eb320ba1daf9ca7fe4947dbbcf9de2baf65b6860d058db21da006 [2023-11-06 22:09:09,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:09:09,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:09:09,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:09:09,096 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:09:09,096 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:09:09,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-restricted-15/NO_21.c [2023-11-06 22:09:12,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:09:12,561 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:09:12,562 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/sv-benchmarks/c/termination-restricted-15/NO_21.c [2023-11-06 22:09:12,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/data/56716069d/4029aaf245a24812ab3dd400d1a333d5/FLAG2b3032272 [2023-11-06 22:09:12,590 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/data/56716069d/4029aaf245a24812ab3dd400d1a333d5 [2023-11-06 22:09:12,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:09:12,603 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:09:12,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:09:12,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:09:12,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:09:12,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6252b892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12, skipping insertion in model container [2023-11-06 22:09:12,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,638 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:09:12,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:09:12,849 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:09:12,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:09:12,882 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:09:12,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12 WrapperNode [2023-11-06 22:09:12,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:09:12,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:09:12,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:09:12,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:09:12,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,919 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2023-11-06 22:09:12,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:09:12,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:09:12,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:09:12,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:09:12,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,943 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:09:12,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:09:12,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:09:12,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:09:12,947 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (1/1) ... [2023-11-06 22:09:12,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:09:12,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:09:12,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:09:13,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:09:13,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:09:13,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:09:13,133 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:09:13,139 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:09:13,218 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:09:13,225 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:09:13,226 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:09:13,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:09:13 BoogieIcfgContainer [2023-11-06 22:09:13,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:09:13,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:09:13,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:09:13,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:09:13,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:09:12" (1/3) ... [2023-11-06 22:09:13,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7c8e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:09:13, skipping insertion in model container [2023-11-06 22:09:13,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:09:12" (2/3) ... [2023-11-06 22:09:13,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7c8e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:09:13, skipping insertion in model container [2023-11-06 22:09:13,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:09:13" (3/3) ... [2023-11-06 22:09:13,240 INFO L112 eAbstractionObserver]: Analyzing ICFG NO_21.c [2023-11-06 22:09:13,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:09:13,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 22:09:13,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:09:13,334 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;@17fe8272, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:09:13,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-06 22:09:13,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:09:13,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:09:13,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:09:13,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:09:13,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:13,356 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-11-06 22:09:13,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:13,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805698115] [2023-11-06 22:09:13,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:13,606 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 22:09:13,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:13,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805698115] [2023-11-06 22:09:13,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805698115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:13,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:13,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:09:13,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852810007] [2023-11-06 22:09:13,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:13,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:13,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:13,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:13,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:13,677 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:13,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:09:13,784 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2023-11-06 22:09:13,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:13,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-06 22:09:13,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:09:13,801 INFO L225 Difference]: With dead ends: 26 [2023-11-06 22:09:13,801 INFO L226 Difference]: Without dead ends: 16 [2023-11-06 22:09:13,805 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 22:09:13,809 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:09:13,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:09:13,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-06 22:09:13,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-11-06 22:09:13,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:13,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-11-06 22:09:13,849 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 4 [2023-11-06 22:09:13,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:09:13,850 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-11-06 22:09:13,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:13,850 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-06 22:09:13,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:09:13,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:09:13,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:09:13,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:09:13,852 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:09:13,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:13,854 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-11-06 22:09:13,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:13,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225036243] [2023-11-06 22:09:13,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:13,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:13,886 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 22:09:13,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:13,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225036243] [2023-11-06 22:09:13,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225036243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:13,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:13,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:09:13,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389731368] [2023-11-06 22:09:13,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:13,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:09:13,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:13,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:09:13,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:09:13,892 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:13,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:09:13,914 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-11-06 22:09:13,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:09:13,915 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 22:09:13,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:09:13,916 INFO L225 Difference]: With dead ends: 16 [2023-11-06 22:09:13,917 INFO L226 Difference]: Without dead ends: 15 [2023-11-06 22:09:13,917 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 22:09:13,919 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:09:13,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:09:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-06 22:09:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-06 22:09:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-06 22:09:13,926 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2023-11-06 22:09:13,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:09:13,927 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-06 22:09:13,927 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), 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 22:09:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-06 22:09:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:09:13,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:09:13,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:13,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:09:13,929 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:09:13,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:13,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2023-11-06 22:09:13,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:13,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949293961] [2023-11-06 22:09:13,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:13,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:13,989 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 22:09:13,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:13,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949293961] [2023-11-06 22:09:13,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949293961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:13,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:13,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:09:13,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097734021] [2023-11-06 22:09:13,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:13,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:09:13,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:13,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:09:13,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:09:13,994 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:14,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:09:14,055 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-06 22:09:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:09:14,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 22:09:14,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:09:14,057 INFO L225 Difference]: With dead ends: 15 [2023-11-06 22:09:14,058 INFO L226 Difference]: Without dead ends: 13 [2023-11-06 22:09:14,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:09:14,060 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:09:14,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:09:14,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-06 22:09:14,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-06 22:09:14,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:14,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-06 22:09:14,067 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-11-06 22:09:14,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:09:14,067 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-06 22:09:14,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:14,068 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-06 22:09:14,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:09:14,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:09:14,069 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:09:14,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:09:14,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-06 22:09:14,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:09:14,071 INFO L85 PathProgramCache]: Analyzing trace with hash 553302605, now seen corresponding path program 1 times [2023-11-06 22:09:14,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:09:14,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917420227] [2023-11-06 22:09:14,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:09:14,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:09:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:09:14,155 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 22:09:14,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:09:14,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917420227] [2023-11-06 22:09:14,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917420227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:09:14,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:09:14,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:09:14,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920709379] [2023-11-06 22:09:14,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:09:14,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:09:14,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:09:14,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:09:14,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:09:14,164 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:14,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:09:14,210 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2023-11-06 22:09:14,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:09:14,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 22:09:14,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:09:14,212 INFO L225 Difference]: With dead ends: 13 [2023-11-06 22:09:14,213 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:09:14,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:09:14,243 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:09:14,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:09:14,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:09:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:09:14,253 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 22:09:14,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:09:14,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2023-11-06 22:09:14,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:09:14,254 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:09:14,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:09:14,254 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:09:14,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:09:14,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-06 22:09:14,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-06 22:09:14,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-06 22:09:14,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-06 22:09:14,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:09:14,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:09:14,319 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2023-11-06 22:09:14,321 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:09:14,321 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-06 22:09:14,322 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-11-06 22:09:14,322 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2023-11-06 22:09:14,323 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:09:14,323 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 15) the Hoare annotation is: (<= 0 |ULTIMATE.start_main_~i~0#1|) [2023-11-06 22:09:14,324 INFO L895 garLoopResultBuilder]: At program point L9-2(lines 9 12) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648))) [2023-11-06 22:09:14,324 INFO L899 garLoopResultBuilder]: For program point L9-3(lines 9 12) no Hoare annotation was computed. [2023-11-06 22:09:14,324 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:09:14,326 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2023-11-06 22:09:14,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-11-06 22:09:14,327 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:09:14,327 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2023-11-06 22:09:14,327 INFO L899 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2023-11-06 22:09:14,331 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 22:09:14,334 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:09:14,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:09:14 BoogieIcfgContainer [2023-11-06 22:09:14,347 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:09:14,348 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:09:14,348 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:09:14,348 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:09:14,349 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:09:13" (3/4) ... [2023-11-06 22:09:14,351 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:09:14,360 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:09:14,361 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:09:14,361 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-06 22:09:14,416 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:09:14,417 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:09:14,417 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:09:14,418 INFO L158 Benchmark]: Toolchain (without parser) took 1814.98ms. Allocated memory was 153.1MB in the beginning and 213.9MB in the end (delta: 60.8MB). Free memory was 108.4MB in the beginning and 176.5MB in the end (delta: -68.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:09:14,418 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 153.1MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:09:14,419 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.18ms. Allocated memory is still 153.1MB. Free memory was 108.0MB in the beginning and 98.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:09:14,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.93ms. Allocated memory is still 153.1MB. Free memory was 98.6MB in the beginning and 97.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:09:14,419 INFO L158 Benchmark]: Boogie Preprocessor took 23.99ms. Allocated memory is still 153.1MB. Free memory was 97.1MB in the beginning and 96.2MB in the end (delta: 901.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:09:14,420 INFO L158 Benchmark]: RCFGBuilder took 282.80ms. Allocated memory is still 153.1MB. Free memory was 96.2MB in the beginning and 87.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:09:14,420 INFO L158 Benchmark]: TraceAbstraction took 1115.47ms. Allocated memory was 153.1MB in the beginning and 213.9MB in the end (delta: 60.8MB). Free memory was 87.1MB in the beginning and 180.7MB in the end (delta: -93.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:09:14,421 INFO L158 Benchmark]: Witness Printer took 69.51ms. Allocated memory is still 213.9MB. Free memory was 180.7MB in the beginning and 176.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:09:14,423 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 153.1MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.18ms. Allocated memory is still 153.1MB. Free memory was 108.0MB in the beginning and 98.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.93ms. Allocated memory is still 153.1MB. Free memory was 98.6MB in the beginning and 97.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.99ms. Allocated memory is still 153.1MB. Free memory was 97.1MB in the beginning and 96.2MB in the end (delta: 901.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.80ms. Allocated memory is still 153.1MB. Free memory was 96.2MB in the beginning and 87.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1115.47ms. Allocated memory was 153.1MB in the beginning and 213.9MB in the end (delta: 60.8MB). Free memory was 87.1MB in the beginning and 180.7MB in the end (delta: -93.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.51ms. Allocated memory is still 213.9MB. Free memory was 180.7MB in the beginning and 176.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 19 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (0 <= i) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: ((i <= 0) && (0 <= (i + 2147483648))) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:09:14,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107a18fb-996e-4cf2-8ce7-0e20281949d1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE