./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a723a67708085ac2edc65dca820ea0ff5f017c1387423fea83ca87f76f9f53c3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:46:21,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:46:21,879 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 00:46:21,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:46:21,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:46:21,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:46:21,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:46:21,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:46:21,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:46:21,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:46:21,918 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:46:21,918 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:46:21,919 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:46:21,919 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:46:21,920 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:46:21,921 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:46:21,921 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:46:21,922 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:46:21,923 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:46:21,923 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:46:21,924 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:46:21,925 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:46:21,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:46:21,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:46:21,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:46:21,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:46:21,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:46:21,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:46:21,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:46:21,930 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:46:21,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:46:21,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:46:21,931 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:46:21,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:46:21,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:46:21,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:21,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:46:21,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:46:21,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:46:21,934 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:46:21,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:46:21,935 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:46:21,935 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:46:21,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:46:21,940 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a723a67708085ac2edc65dca820ea0ff5f017c1387423fea83ca87f76f9f53c3 [2023-11-12 00:46:22,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:46:22,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:46:22,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:46:22,230 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:46:22,231 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:46:22,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2023-11-12 00:46:25,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:46:25,537 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:46:25,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2023-11-12 00:46:25,546 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/data/5f334483b/8e5748e10c644cae8671ccbd3052a2a0/FLAGd05880689 [2023-11-12 00:46:25,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/data/5f334483b/8e5748e10c644cae8671ccbd3052a2a0 [2023-11-12 00:46:25,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:46:25,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:46:25,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:25,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:46:25,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:46:25,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14957868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25, skipping insertion in model container [2023-11-12 00:46:25,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,602 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:25,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:25,804 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:46:25,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:25,837 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:46:25,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25 WrapperNode [2023-11-12 00:46:25,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:25,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:25,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:46:25,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:46:25,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,870 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-11-12 00:46:25,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:25,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:46:25,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:46:25,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:46:25,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:46:25,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:46:25,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:46:25,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:46:25,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (1/1) ... [2023-11-12 00:46:25,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:25,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:25,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:46:25,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:46:25,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:46:25,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:46:26,086 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:46:26,088 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:46:26,195 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:46:26,217 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:46:26,217 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:46:26,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:26 BoogieIcfgContainer [2023-11-12 00:46:26,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:46:26,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:46:26,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:46:26,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:46:26,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:46:25" (1/3) ... [2023-11-12 00:46:26,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c67cd48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:26, skipping insertion in model container [2023-11-12 00:46:26,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:25" (2/3) ... [2023-11-12 00:46:26,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c67cd48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:26, skipping insertion in model container [2023-11-12 00:46:26,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:26" (3/3) ... [2023-11-12 00:46:26,230 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2023-11-12 00:46:26,250 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:46:26,251 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 00:46:26,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:46:26,308 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@64856bf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:46:26,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 00:46:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:26,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:46:26,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:26,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:46:26,322 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)] === [2023-11-12 00:46:26,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:26,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2126373, now seen corresponding path program 1 times [2023-11-12 00:46:26,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:26,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567983352] [2023-11-12 00:46:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:26,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:26,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:46:26,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:26,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567983352] [2023-11-12 00:46:26,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567983352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:26,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:26,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:46:26,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643546495] [2023-11-12 00:46:26,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:26,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:46:26,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:26,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:46:26,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:26,552 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2023-11-12 00:46:26,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:26,597 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2023-11-12 00:46:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:46:26,599 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 [2023-11-12 00:46:26,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:26,605 INFO L225 Difference]: With dead ends: 12 [2023-11-12 00:46:26,605 INFO L226 Difference]: Without dead ends: 10 [2023-11-12 00:46:26,607 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 [2023-11-12 00:46:26,611 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:26,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:46:26,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-12 00:46:26,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-12 00:46:26,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 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) [2023-11-12 00:46:26,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2023-11-12 00:46:26,640 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2023-11-12 00:46:26,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:26,640 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2023-11-12 00:46:26,640 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) [2023-11-12 00:46:26,641 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-12 00:46:26,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:46:26,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:26,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:46:26,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:46:26,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:46:26,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:26,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2127062, now seen corresponding path program 1 times [2023-11-12 00:46:26,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:26,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682599504] [2023-11-12 00:46:26,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:26,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:46:26,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:26,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682599504] [2023-11-12 00:46:26,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682599504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:26,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:26,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:46:26,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727514183] [2023-11-12 00:46:26,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:26,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:46:26,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:26,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:46:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:26,680 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. 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) [2023-11-12 00:46:26,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:26,696 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-11-12 00:46:26,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:46:26,697 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 [2023-11-12 00:46:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:26,698 INFO L225 Difference]: With dead ends: 10 [2023-11-12 00:46:26,698 INFO L226 Difference]: Without dead ends: 9 [2023-11-12 00:46:26,699 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 [2023-11-12 00:46:26,701 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:26,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:46:26,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-12 00:46:26,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-12 00:46:26,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 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) [2023-11-12 00:46:26,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-11-12 00:46:26,705 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2023-11-12 00:46:26,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:26,706 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-12 00:46:26,706 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) [2023-11-12 00:46:26,706 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-12 00:46:26,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:46:26,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:26,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:46:26,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:46:26,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:46:26,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:26,708 INFO L85 PathProgramCache]: Analyzing trace with hash 65917617, now seen corresponding path program 1 times [2023-11-12 00:46:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:26,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491205036] [2023-11-12 00:46:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:26,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:26,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:46:26,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:26,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491205036] [2023-11-12 00:46:26,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491205036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:26,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:26,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:46:26,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951269980] [2023-11-12 00:46:26,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:26,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:46:26,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:26,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:46:26,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:46:26,800 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) 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) [2023-11-12 00:46:26,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:26,883 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2023-11-12 00:46:26,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:46:26,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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 [2023-11-12 00:46:26,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:26,885 INFO L225 Difference]: With dead ends: 20 [2023-11-12 00:46:26,885 INFO L226 Difference]: Without dead ends: 18 [2023-11-12 00:46:26,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:46:26,895 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:26,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 7 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:46:26,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-12 00:46:26,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-12 00:46:26,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2023-11-12 00:46:26,903 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 5 [2023-11-12 00:46:26,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:26,903 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-11-12 00:46:26,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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) [2023-11-12 00:46:26,904 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-12 00:46:26,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:46:26,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:26,905 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:46:26,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:46:26,905 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:46:26,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:26,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1990467602, now seen corresponding path program 1 times [2023-11-12 00:46:26,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:26,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439589985] [2023-11-12 00:46:26,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:26,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:27,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:46:27,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:27,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439589985] [2023-11-12 00:46:27,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439589985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:27,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:27,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:46:27,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910135951] [2023-11-12 00:46:27,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:27,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:46:27,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:27,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:46:27,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:46:27,043 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2023-11-12 00:46:27,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:27,129 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2023-11-12 00:46:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:46:27,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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 [2023-11-12 00:46:27,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:27,131 INFO L225 Difference]: With dead ends: 34 [2023-11-12 00:46:27,132 INFO L226 Difference]: Without dead ends: 21 [2023-11-12 00:46:27,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:46:27,134 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:27,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 6 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:46:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-12 00:46:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2023-11-12 00:46:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2023-11-12 00:46:27,149 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 9 [2023-11-12 00:46:27,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:27,149 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-11-12 00:46:27,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 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) [2023-11-12 00:46:27,150 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-12 00:46:27,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:46:27,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:27,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-12 00:46:27,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:46:27,151 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:46:27,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:27,152 INFO L85 PathProgramCache]: Analyzing trace with hash -103839164, now seen corresponding path program 1 times [2023-11-12 00:46:27,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:27,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868017199] [2023-11-12 00:46:27,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:27,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:46:27,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:27,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868017199] [2023-11-12 00:46:27,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868017199] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:46:27,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225351397] [2023-11-12 00:46:27,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:27,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:46:27,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:27,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:46:27,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:46:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:27,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:46:27,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:46:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:46:27,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:46:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:46:27,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225351397] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:46:27,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2094086787] [2023-11-12 00:46:27,569 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2023-11-12 00:46:27,570 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:46:27,577 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:46:27,583 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:46:27,583 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:46:28,376 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:46:28,572 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '277#(and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 2147483649 |ULTIMATE.start_main_~j~0#1|) (<= 1 |ULTIMATE.start_main_~N~0#1|))' at error location [2023-11-12 00:46:28,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:46:28,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:46:28,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 6] total 12 [2023-11-12 00:46:28,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324027372] [2023-11-12 00:46:28,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:46:28,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 00:46:28,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:28,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 00:46:28,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:46:28,577 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:28,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:28,893 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2023-11-12 00:46:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 00:46:28,894 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-12 00:46:28,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:28,895 INFO L225 Difference]: With dead ends: 43 [2023-11-12 00:46:28,895 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:46:28,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2023-11-12 00:46:28,898 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:28,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 0 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:46:28,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:46:28,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:46:28,900 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) [2023-11-12 00:46:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:46:28,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-11-12 00:46:28,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:28,901 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:46:28,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:46:28,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:46:28,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:46:28,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-12 00:46:28,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-12 00:46:28,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-12 00:46:28,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-12 00:46:28,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:46:29,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:46:29,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:46:29,227 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2023-11-12 00:46:29,228 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:46:29,228 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-12 00:46:29,229 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~N~0#1| 2147483648) (<= |ULTIMATE.start_main_~j~0#1| 2147483648) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~N~0#1|)) [2023-11-12 00:46:29,230 INFO L899 garLoopResultBuilder]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2023-11-12 00:46:29,233 INFO L895 garLoopResultBuilder]: At program point L17-2(lines 17 23) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~N~0#1| |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~N~0#1| 2147483647)) (and (<= |ULTIMATE.start_main_~N~0#1| 2147483648) (<= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~N~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 2147483647))) [2023-11-12 00:46:29,233 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:46:29,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2023-11-12 00:46:29,234 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-12 00:46:29,234 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-11-12 00:46:29,235 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-12 00:46:29,236 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2023-11-12 00:46:29,241 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:46:29,243 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:46:29,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:46:29 BoogieIcfgContainer [2023-11-12 00:46:29,270 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:46:29,271 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:46:29,272 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:46:29,272 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:46:29,272 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:26" (3/4) ... [2023-11-12 00:46:29,274 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:46:29,282 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 00:46:29,282 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-12 00:46:29,283 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-12 00:46:29,376 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:46:29,376 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:46:29,376 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:46:29,377 INFO L158 Benchmark]: Toolchain (without parser) took 3812.18ms. Allocated memory is still 197.1MB. Free memory was 154.0MB in the beginning and 60.5MB in the end (delta: 93.5MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2023-11-12 00:46:29,377 INFO L158 Benchmark]: CDTParser took 1.17ms. Allocated memory is still 130.0MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:46:29,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.84ms. Allocated memory is still 197.1MB. Free memory was 153.6MB in the beginning and 144.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:46:29,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.45ms. Allocated memory is still 197.1MB. Free memory was 144.2MB in the beginning and 142.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:46:29,378 INFO L158 Benchmark]: Boogie Preprocessor took 27.54ms. Allocated memory is still 197.1MB. Free memory was 142.8MB in the beginning and 141.8MB in the end (delta: 968.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:46:29,379 INFO L158 Benchmark]: RCFGBuilder took 318.65ms. Allocated memory is still 197.1MB. Free memory was 141.8MB in the beginning and 132.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:46:29,379 INFO L158 Benchmark]: TraceAbstraction took 3047.66ms. Allocated memory is still 197.1MB. Free memory was 131.2MB in the beginning and 64.7MB in the end (delta: 66.5MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2023-11-12 00:46:29,379 INFO L158 Benchmark]: Witness Printer took 105.09ms. Allocated memory is still 197.1MB. Free memory was 64.7MB in the beginning and 60.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:46:29,382 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17ms. Allocated memory is still 130.0MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.84ms. Allocated memory is still 197.1MB. Free memory was 153.6MB in the beginning and 144.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.45ms. Allocated memory is still 197.1MB. Free memory was 144.2MB in the beginning and 142.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.54ms. Allocated memory is still 197.1MB. Free memory was 142.8MB in the beginning and 141.8MB in the end (delta: 968.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 318.65ms. Allocated memory is still 197.1MB. Free memory was 141.8MB in the beginning and 132.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3047.66ms. Allocated memory is still 197.1MB. Free memory was 131.2MB in the beginning and 64.7MB in the end (delta: 66.5MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. * Witness Printer took 105.09ms. Allocated memory is still 197.1MB. Free memory was 64.7MB in the beginning and 60.5MB 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 16 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=4, InterpolantAutomatonStates: 29, 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 11 NumberOfFragments, 31 HoareAnnotationTreeSize, 2 FomulaSimplifications, 33 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 98 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 2 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 12/20 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: 19]: Loop Invariant Derived loop invariant: ((((N <= 2147483648) && (j <= 2147483648)) && (1 <= i)) && (i <= N)) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((N == i) && (N <= 2147483647)) || (((N <= 2147483648) && (i <= N)) && (j <= 2147483647))) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:46:29,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ccf0ea-93c7-4144-9133-545f372e3ac1/bin/utaipan-verify-NcY6lQBIFX/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